January/February 2012 Vol. 9 No. 2
Transportation Management Centre Don Schouten, WorkSafe BC Infrastructure PM 40063056
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Inside
January/February 2012 | Volume 9 No.2
06 Connections
PUBLISHER
Don Schouten As the manager of industry and labour services WorkSafeBC for construction, Don Schouten works closely with stakeholders to provide services and programs that promote safety.
MANAGING Editor Contributing writers
10 Feature Project Transportation Management Centre A new purpose built building in Coquitlam will centralize transportation services in the Lower Mainland.
Industry Focus 16 Roofing Largest Solar Energy System Roofing Assembly Selection: Owners’ Requirements Dramatic Roof Form
B.C./ALBERTA SALES
Dan Gnocato dang@mediaedge.ca Cheryl Mah Malika Ali Mike Bindas Tonya De Castro Sigurd Delblanc Mike Hill Dave Kalashnikov Ted Katsoris Steve McConnell J. Marc MacEwing Kevin Matwick Tim Northup Duane Palibroda Gordon C. Weatherill David Vonesch Dan Gnocato Tel: 604.549.4521 ext. 223
22 Bonding & Insurance Business Continuity and Succession Planning Selecting an Insurance and Bonding Advisor New Home Warranty Insurance Maintaining a Good Relationship
PUBLISHED BY
PRESIDENT Kevin Brown
28 Infrastructure Innovative Bridge Launch Providing Clean Drinking Water A New Landmark Gateway
vancouver office 114 – 42 Fawcett Drive Coquitlam, BC V3K 6X9 Tel: 604.549.4521 Fax: 604.549.4522
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Under construction, the new Transportation Management Centre will monitor and manage traffic flows on major roads and transit systems in Lower Mainland. Construction Business is British Columbia and Alberta’s construction magazine. Each issue provides timely and pertinent information to contractors, architects, developers, consulting engineers, and municipal governments throughout both provinces. Complimentary copies are sent bi-monthly to all members of the Architectural Institute of B.C., B.C. Construction Association, B.C. Roadbuilders and Heavy Construction Association, Consulting Engineers of B.C., Construction Specifications Canada — B.C. Chapter, Greater Vancouver Home Builders’ Association, B.C. Ready-Mixed Concrete Association, Independent Contractors and Businesses Association of B.C., Urban Development Institute of B.C. and Vancouver Regional Construction Association.
Feb 13 and 14, 2013
March 20 & 21, 2012
November 6 & 7, 2012
Editor’s Note
Inspired Design
H
ard to believe spring is just around the corner. Already our garden is showing signs of new growth. One of my favourite gardens to visit is the VanDusen Botanical Garden, a beautiful green oasis in the heart of Vancouver. This past Christmas, my family and I once gain enjoyed the annual Festival of Lights there — always a stunning display to help celebrate the holiday season. Equally stunning is the new Visitor Centre, which opened last October. Designed by Perkins + Will, the centre is a striking entrance that is already receiving international recognition and accolades for its inspired design and Living Building status. What is particularly eye-catching is the dramatic undulating orchid-shaped wood roof structure.
CONSTRUCTION
HEATING
Fast + Epp, structural engineers on the project, talks about the design and challenges of the structure in our roofing feature. We also take a look at the largest commercial solar energy system on Okanagan College’s Jim Pattison Centre of Excellence in Sustainable Building Technologies and Renewable Energy Conservation. More than 1,000 solar panels were used on the project. For our profile, I chat with Don Schouten, manager of industry and labour services for construction at WorkSafeBC. He has worked in the industry for more than 20 years and now works with industry stakeholders on health and safety initiatives to reduce injuries and claims. Improving safety is also a function of our feature project in this issue. The Transportation Management Centre (located along Highway 1 in Coquitlam) will manage traffic flows on major
GENERAL LINE
EQUIPMENT
roads in the region and serve as a command centre in the event of disaster. The need for the centre to be operational in 2012 meant a challenging tight schedule for the project team. Finally, in our annual look at Bonding and Insurance, you will find a wealth of information on the importance of succession planning; maintaining a good relationship with your surety; selecting an insurance and bonding advisor and the financial responsibility of builders under the New Home Warranty in B.C.
Cheryl Mah Managing Editor
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Connections
Safety Matters By Cheryl Mah
C
onstruction continues to be one of the highest risk industries in which to work but the good news is the injury rate in B.C. has steadily declined year after year through increased safety awareness, education and enforcement. “In 1989, the injury rate was 13.7 per cent and in 2010 it was 4.3 per cent,” says Don Schouten, manager of industry and labour services for construction at WorkSafeBC. “Safety is improving. It’s becoming a part of the culture but we still have a long way to go because ultimately the goal is for nobody to get hurt.” Construction employs a large number of people throughout the province — representing approximately 39,000 employers and 149,000 workers. Partnering with industry on health and safety initiatives is key to WorkSafeBC’s strategy in reducing injuries and claims. “I come from industry. I know it very well. I know the people at the table want to do the right thing,” says Schouten. “I want to work with industry to make a difference and make it a safer environment for everybody. I want to make it possible for everyone to go home safe at the end of the day.” After more than 25 years working in the industry, Schouten knows first hand the importance of safety as well as how attitudes about safety have changed. “I remember my father doing chimneys and putting sawhorses on top of scaffolding and standing on tippy toes to reach the last course of bricks — it was about getting the job done and not think6
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ing about safety and those around you. If you go around jobs sites today, that’s certainly changed,” he says. Born in Edmonton, Schouten grew up in the Lower Mainland and started working in the construction industry at an early age for his father who was a bricklayer. He then worked as a framer in the residential sector while earning his BCIT diploma in civil engineering and structural technology. After graduating in 1984, he went to work for a large commercial roofing company. He helped to grow the business for more than 20 years, eventually becoming the manager. During this time he was also involved with a number of industry associations as a board member and began to develop a passion for safety. “In my role on the boards, I certainly worked with WorkSafeBC and was pleased with their partnership with industry to try to bring safety to the forefront, so when an opportunity rose to join them I decided to make a change,” he recalls. Schouten joined the agency in 2006 as an industry specialist in construction. He assumed his current position in 2008 after the retirement of Don Nelson. “My objective is to hopefully give back to the industry and to make a difference by helping to improve safety in the construction industry,” says Schouten, who oversees a team of three. “Our role here is to help continue to shift the safety culture so that safety is thought of at the front lines as opposed to something you have to do.”
Schouten and his team consult and work directly with industry to develop tools and resources to address various safety issues. The focus will continue to be (through its high risk strategy) on the top three sources of serious injuries: falls, struck bys and overexertion. Together, these three account for more than 70 per cent of all injuries in the industry. “Falls is number one. When workers fall it’s generally a serious injury,” says Schouten, noting ladders are one of the most commonly used pieces of equipment and one of the most dangerous. “We want to draw more attention to the proper use of ladders and get the message out there to make sure it’s top of mind.” There were 869 reported falls from ladders in 2010. The construction industry accounts for 42 per cent of all fall-from-ladder claims. Roofing is particularly high risk because of falls. The workplace injury rate for roofing far exceeds the average provincial injury rate for all industries in B.C. It is also the sector most frequently penalized for violations of regulations. “Any time you’re working at heights is certainly a concern. The use of fall protection is critical for that sector,” says Schouten, adding that’s why they will be hosting another roofing symposium for steep slope in partnership with RCABC and BCCSA on March 28. Another concern is occupational disease. In 2010, there were 32 deaths in construction, 19 of which were due to occupational disease representing the highest number of work related fatalities in any industry sector in B.C.
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Connections Asbestos is a leading cause of fatalities and it’s expected to remain a top killer for the next several years as more workers get sick and die from decades-old exposures. “We are seeing a number of fatalities from asbestos so we want people to be aware that asbestos is still out there,” says Schouten. “There’s an asbestos team of officers that are going around making sure that — particular in house demolitions — proper procedures are in place prior to demolitions.” A range of program and services are available through WorkSafeBC’s construction portal online including toolbox talks, hazard alerts, videos and bulletins. Videos and toolbox talks (approximately 10,000 toolbox talks are downloaded a month) can be downloaded and used right on site. It’s all about making information easily accessible for people. “That’s one of the reasons why we now have the regulation app for instance. People can download the app and the regulations are right on their iPhone. We’re looking at doing more of that — providing that type of easy access,” explains Schouten. ”As technology evolves, we want to be leading edge so that people can find what they need quickly.” Following good safety practices will not only save lives and reduce injuries, but can also improve a company’s bottom line. “Rather than thinking of safety as a burden, it actually is an asset,” states Schouten. “Nowadays
people are looking for a company’s safety program before they hire you.” Increasingly, a Certificate of Recognition (COR) is becoming a common requirement when contractors are bidding on contracts, which reinforces the importance of safety while giving companies a competitive advantage. “The COR program is not just about the rebate. A good safety record is important. If I’m a safe company, people want to work for me and it will help me get jobs,” says Schouten. “Being COR certified makes you look at your company and see where you’re at and helps you move forward to improve safety in your company.” Despite lower injury rates and claims (under 7,000 in 2010), the construction industry has seen an increase in the average duration of claims over recent years. From 2008-2010, the construction industry average duration increased from 52.5 days to 74.3 days. “We want to focus on prevention, making sure incidents don’t occur in the first place but if someone does get injured, we want to make sure they get proper care and get back on the job sooner,” says Schouten. “It’s actually beneficial for everybody to have the worker come back when they can and be rehabilitated on the worksite.” Ultimately health and safety is everybody’s responsibility and Schouten would like to see the construction industry address safety concerns collaboratively.
Following good safety practices will not only save lives and reduce injuries, but can also improve a company’s bottom line. “As in everything, there are opposing views. I want politics [and finger pointing] to be out of safety. I want the collective focus to be on the common goal to see that no one gets hurt,” says Schouten, citing the merger of the two construction safety associations in 2010 as a move in that direction. Although challenges still exist, Schouten is optimistic about the industry’s ongoing efforts and stresses planning for safety is key. Having the right safety equipment and training is as equally important as having the right tools and materials. “Plan for safety like you plan any other part of your job,” he advises. “The goal is nobody gets hurt and planning for safety is key to achieving that goal.” Outside of work, the most important thing for the 49-year-old is spending time with his young family. He has two children, Adam and Jessica, and has been married to Shawna for 10 years.
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Feature Project
Centralized Services By Cheryl Mah
M
obility and reliability of Lower Mainland’s transportation network will be significantly improved when the new Transportation Management Centre becomes operational in 2012. Occupying a highly visible location along Highway 1 in Coquitlam, the centre will provide office and administration space to monitor and manage traffic flows on major roads and transit systems in the region. It will bring together multiple agencies to ensure more efficient and effective customer services for the public and key stakeholders. The purpose built commercial building, designed by Merrick Architecture - Borowski Sakumoto Fligg Ltd., will house a new multijurisdictional Regional Traffic Management Centre (command centre in the event of disaster) and consolidate various Ministry of Transportation regional services in one location. It will also serve as home to Transportation Investment Corp (administrative crown corporation for the Port Mann/Highway 1 Improvement Project) and the Port Mann toll operations centre. “Our overarching architectural design goal was to develop a cost effective environmentally responsible building,” says principal-in-charge Graham Fligg of Merrick Architecture.
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EllisDon is delivering the project (base building and second floor) on a fixed lump sum contract, breaking ground in May 2011. The 80,000 square foot concrete and steel structure is clad with a combination of curtainwall and composite metal paneling. The bulk of the building rises four storeys. The first floor contains open covered parking and building systems service spaces. An angled portion of the roof was designed to accommodate and conceal service equipment without adding a full additional floor.
As a post disaster facility, the building must meet higher structural performance standards. Additional components include servicing redundancies, emergency generators, on-site storage of fuel for generators, and on-site storage for potable water and sprinkler suppression systems. EllisDon project manager David Hainsworth reports that construction is roughly 65 per cent complete as of January with the project on schedule to complete in June 2012. Manpower is averaging about 120.
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Feature Project
The site posed some initial geotechnical challenges but the project was able to gain time by not going to a pile driven facility. Instead, a floating slab with grade beams was used to address poor soil conditions. “Because of that structural approach, we were able to gain some schedule with minimal disruption to nearby residents,” says Fligg. Once out of the ground, the $20 million project has been fairly straightforward with minimal change orders. “The real challenge has been the tight schedule,” says Hainsworth. Adding to the tight schedule was the challenge of turning over a 600 square foot server room to the users at the beginning of January 2012. EllisDon had to accelerate construction for that portion, meaning advanc12
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Feature Project
ing components like power and equipment that would normally occur at a later date. “Normally the server room is turned over at the end of the project, not half way through it so getting that done ahead of the main schedule was quite a challenge,” explains Hainsworth. Fligg also cites the schedule as the main challenge on this project, crediting exceptional collaboration from the City of Coquitlam for streamlining approvals. “Putting together the documents and getting municipal approvals in an extremely compressed timeframe was a huge challenge for us,” he says, adding normally a building of this size would require 9-12 months before going to tender and then about another 24 months for construction. “This project will be complete in 21 months
from design concept to occupancy and that includes full tenant improvement for one third of the building.” A separate tender will be called for the tenant improvements on two other floors following Phase one, which is expected to take another six months to complete. Designed to LEED Gold standards, the building features a number of sustainable strategies including passive solar shading, green roof and low VOC materials. The building is oriented on an east-west axis, maximizing daylighting potential and minimizing heat gain. Fligg feels the project is a good example of how to achieve LEED without a lot of complexity. “We as a firm often refer to sustainable design as responsible design,” he says. “Sustainability is
...normally a building of this size would require 9-12 months before going to tender and then about another 24 months for construction. all about the appropriate application of resources in a relatively straightforward way. LEED design does not have to be expensive. The schedule would not have been achieved if the design was not practical.” January/February 2012
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Feature Project
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Located between two highways, the building utilizes double-glazed windows to address soundproofing. Fligg explains one key component of many LEED based buildings is to have “fresh air and operable windows.” In this case, it was not possible because of the traffic noise and emissions. “We had to look for innovative cost effective design elsewhere that could qualify for LEED Gold and the green roof is one of the solutions,” he says. A major thrust of the design concept was to incorporate a rooftop garden amenity area and extensive at grade landscaping, which responsibly integrates surrounding environmentally sensitive creeks and ultimately restores a once derelict site. Wood elements have also been included in the design, in accordance with the provincial Wood First policy. Six Douglas fir glulam beams are featured on the west facade for both aesthetic and structural purposes. Wood has also been used to support aluminum sunshades. Hainsworth notes the installation and assembly of the glulam beams were also challenging. “They were quite large and technically difficult to do but everything has gone well.” Another feature of the building is the use of coloured glass. “All the spandrel glass is comprised of three different colours — blue and green hues — which helps to give the building some subtle visual depth at no extra cost,” explains Fligg. The location also meant very limited access to the site. Future municipal improvements for road access are planned. The strong working relationship among all the parties was cited as key to the success of this project. “It’s because of the performance of EllisDon that we are meeting the schedule. We could not have a better contractor and they have more than risen to the schedule challenges,” says Fligg. “This is a flagship example of what you can achieve through a traditional design-bidbuild process with collaboration and cooperation by all involved.”
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Roofing
Largest Solar Energy System By David Vonesch
More than 1,000 solar panels were used on the Centre of Excellence.
C
ompleted in spring 2011, the Okanagan College’s Jim Pattison Centre of Excellence in Sustainable Building Technologies and Renewable Energy Conservation educates future green construction tradespeople on sustainable building technologies. Built in accordance with the Living Building Challenge (ilbi.org), an ambitious program that requires buildings to reconcile with the natural environment towards achieving net-zero energy operations and minimal water consumption, the Centre saw solar energy as a key component towards meeting its environmental goals. A 260 kW commercial solar electric system — the largest system installed in Canada outside of Ontario — was installed on the facility. Working on a fairly tight deadline, our team of professional engineers, photovoltaic (PV) technicians and experienced installation crews worked closely with other contractors in order to complete the installation of the PV system in 50 days. The greatest challenge was in accommodating modifications to optimize the system for the available roof space and on-site shading conditions. 16
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Using 1,106 Conergy P solar modules, chosen for their low cost and high performance, the system layout required a wide variation in array-tilt angles to maximize the amount of power that could be generated from the 23,000 square-foot-roof space. Satcon Solstice inverters and subcombiners al-
lowed for the varying string lengths and tilt angles required. Four solar chimneys, each holding nine modules, were also integrated with the system, and careful consideration was given to maintain designated green spaces and access for students to view the solar panels and conduct testing.
Roofing Students, staff and visitors at the Centre now have the opportunity to learn hands-on how the solar system works, monitor its efficiencies throughout the building, as well as its interaction with the municipal power grid. The system allows for excess energy during the summer to be fed into the grid and drawn back in the winter to continue powering the “living lab”. If the solar electric system is producing more power than the Centre of Excellence is using at any given instance, that excess power goes to the next closest load in the electrical grid, whether it be another building on campus or the coffee shop down the street. Overall, the complete system is expected to produce 292,500 kWh per year and will decrease operating costs by allowing the Centre to realize energy neutrality on an annual basis. Specialized software that measures local climate conditions, solar array angle, shading, and efficiency losses was used to determine what the Centre can expect in terms of energy production. A bidirectional electrical meter installed by the utility measures precisely both what is leaving the building and entering the building.
…the average annual market growth for PV technologies has been more than 20 per cent for more than a decade. There are many indications that the future of solar in Canada will continue to be promising. According to the Government of Canada, the average annual market growth for PV technologies has been more than 20 per cent for more than a decade. Revenues in the solar photovoltaic industry were up 60 per cent in 2010, to more than $1.1 billion. There was also a revenue increase of more than 75 per cent to $37.5 million for the solar thermal industry. As the cost of traditional energy continues to rise and the price of solar panels remains low, there’s never been a more affordable time to invest in solar energy. Critical to the continued strength of the solar industry, however, is the need for skilled labour, particularly for experienced and certified technicians and installers. The solar industry in western Canada is still in its infancy and there are far more people trying to find work in the industry then it can support at this stage. But if the establishment of the Centre of Excellence is any indication, the solar industry will continue to grow into 2012 and beyond. David Vonesch, BSc. Eng, is a certified photovoltaic technician with SkyFire Energy Inc, an industry leader in delivering solar solutions for government, commercial, industrial and residential properties. www.skyfireenergy.com
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17
Roofing
Roofing Assembly Selection: Owners’ Requirements By Ted Katsoris and Tonya De Castro
M
odified bitumen roofing, PVC, TPO’s EPDM, 4ply felt, asphalt gravel membranes, inverted, builtup assemblies, loose laid, ballasted, mechanically fastened systems, which one to choose for this owner, and this building? The available combinations of material and installation methods can seem endless and in some instances overwhelming. We have often been asked, by many clients, for the reasoning behind our selection for a specific roof design. Although consultants, architects, builders, etc., may have their own preferred assembly, one must also be aware that one specific roof assembly may not be the most appropriate for all possible applications. For these reasons, we have attempted to provide a “check list” outlining a series of requirements that should be considered thoroughly by all parties when determining the type of roof assembly that will be designed, installed and let’s not forget maintained. Whether this roof will go on a newly constructed building or it is a reroofing situation, the process of determining the most suitable type of roof assembly includes understanding the following: • Owner’s Requirements, • Building Constraints, • Seasonal Constraints and finally the • Design Requirements. For the purposes of this article, we will focus on understanding the owner’s requirements. There have been numerous articles written by other professionals within the industry in regards to “selecting the right roof system”. However, in reading those articles one common element that is often neglected is — what does the owner what this roof to do. Many designers often forget that once installed, the owner will have to live with and maintain the roof for its designed life expectancy — assume 20 years. Good or bad, the owner is stuck (for lack of better word) with this roof assembly. 18
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January/February 2012
Understanding the roofs intended function is just as important as selecting the various materials that will comprise the new roof assembly. Thus it is prudent to speak to the owner and their operating staff to determine their experience (if any) with other assemblies and whether or not they have a preference. Additionally, especially in re-roofing situations, one must determine why the roof is being replaced. Conventionally, it is one of two reasons: • I t has reached the end of its design life and it is no longer economically feasible to maintain; • It has failed prematurely. The first one is easy — “yes the roof is old and needs replacement” or “yes, we need a roof for our new building.” The second reason must be clearly understood, as it will have an impact on the new design. In other words, we do not want to repeat the same mistakes that caused this roof to fail in the first place. Whether designing for a builder / architect or direct owner it has been our experience that these first steps are critical in the design of a roofing system. The following is a comprehensive list of additional information that should be gathered through consultation with the client: Project: Was this a planned or unplanned project? Budget: Knowing what the budget is prior to the start of design will assist in the selection of an appropriate system. Budget is not only affected by system selection, but access to and from the work area, time of year, etc. Insurance requirements: For example, is this or will this building be insured by Factory Mutual, as they have strict prescriptive design requirements that have to be adhered to. Usage: Is it the client’s intent to use this roof assembly to simply keep the elements out, or will it, for example, be used as a vegetated assembly, terrace for gathering, do they intend to install solar panels on the roof, etc.? Time of Work: Are the operations of this facility such that work can only be performed dur-
ing off hours, such as weekends, night or other time restrictions? Environmental: Are there sensitive areas within the building where noise and odour will become an issue? This holds especially true when re-roofing an existing building and/or working next to an occupied facility. Tenant Requirements: The tenant may demand / request to be part of the design process, especially if material will be taken through their space. Access to roof: How will workers and material be transported to the work area? Maintenance: Is there a maintenance budget for this roof ? Understanding these points is essential in the selection of a proper roof design as one or more of these points will have an impact as to what is selected. For example, there may be buildings that will have numerous mechanical units on the roof, requiring regular maintenance by both internal and external work forces. The resulting foot traffic increases the probability that the membrane may be accidentally damaged by mechanics dropping tools, dragging equipment around, cutting, welding on the roof, etc. There have been many instances where a mechanic has dropped a tool and inadvertently / unknowingly punctured the membrane. Left unchecked water will enter the system and begin the process of damaging the roof and its components to the point where it becomes un-economical to repair and a replacement is warranted. Alternatively, one may be re-roofing a building in a built-up area where the material cannot be brought up or down from the side of the building, but will have to be carried to and from the work area through the prime tenants space, up and down the main elevators and finally out through the main lobby. Furthermore, the prime tenant has a sensitive work space, and therefore built-in redundancy is imperative and finally, as this is an unplanned project and funds are very limited. These conditions immediately limit the type of systems that can be selected for this project. For a project to be successful the owner’s input is fundamental. In new roofing, we as designers may have some flexibility. However, in re-roofing operations, our options quickly become limited by factors outside of our control. Forgetting / ignoring to ask, educate and obtain owner buy-in to any proposed roof design dramatically increases the probability where the specified product may not meet the owner’s short and long term needs. Ted Katsoris B. Tech., Arch. Sc., CCCA, BSSO, department manager and Tonya De Castro B. Arch Sci., building science consultant are both with Morrison Hershfield Limited, building science department, building energy and technology group.
SPECIAL ADVERTISING FEATURE
Tynehead Pedestrian Overpass
Testimonial “I was involved with site visits to different crane companies and it was highly recommended that we choose Eagle West, based on their expertise and excellent equipment fleet. Eagle West performed their duties very well and completed a job well done. I’m happy to use their services again and recommend them to others.” — Lloyd Ratzlaff, site supervisor, HRC Construction
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Eagle West Cranes, a crane rental company that is COR certified by the BC Construction Safety Alliance, was contracted to assemble three large bridge sections. These bridge sections were to be assembled on site and lifted into place, creating the Tynehead Cycling and Pedestrian Overpass in Surrey, B.C. This $6.78 million overpass project connects Tynehead Regional Park with Fraser Heights. It spans Highway 1 at 168 Street and can be seen as you head eastbound from Vancouver, just after you cross the Port Mann Bridge. This overpass is 122-metres long and is illuminated at night with the lights being programmed to match the season and special occasions. This particular project was located above a main gas pipeline. Each of the three sections needed to be individually assembled before they were lifted into place. Eagle West Cranes’ technical centre, Belair Fabrication Ltd. (general contractor), and the gas company worked closely to devise a plan that included AutoCAD drawings, lane closures, night work, and several cranes. The ultimate goal was to lift each section safely and efficiently into place. With more than 40 cranes to service B.C.’s lifting and moving needs, Eagle West provided two cranes that were perfectly suited for the project — a Link Belt ATC 3200, a 200-ton all-terrain crane and a Liebherr LTM1220-5.1, a 270-ton all-terrain crane, to assemble and install the three bridge sections. These two cranes had to work seamlessly together to lift the three sections safely into place. The installation of the second and third sections required the east and westbound lanes of Highway 1 to be shut down — subsequently, the work had to be completed at night. Four hours were allocated for the closure and the team was required to complete the installation of the remaining two sections within this time frame. Eagle West’s technical centre, the general contractor, and the gas company worked as a team to pre-plan the night lift procedures. When you are working with lane closures and a tight time frame it is essential to pre-plan the lifts to ensure that the work is done safely and efficiently. Gary Klynsoon, technical lead at Eagle West Cranes commented, “Ultimately, the project went very well. We worked intensely with the general contractor, the gas company and the engineer until we had a plan which worked for everyone.”
Please contact Eagle West Cranes & Equipment to discuss the benefits of Self Erecting Cranes on your jobsite. Call 1.800.667.2215 today or visit www.eaglewestcranes.com for more information.
Roofing
Dramatic Roof Form
Nic Lehoux
The VanDusen Botanical Garden Visitor Centre By Duane Palibroda
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he thoroughfare along Oak Street between King Edward and 33rd Avenue in Vancouver has never been a particularly inspiring drive. Motorists funnel past non-descript retail buildings, a hospital, and field hockey players battling it out on an adjacent high school’s artificial turf. But all that changed in the spring of 2011, when cranes, construction workers and flatbed trailers loaded with roof panels rolled onto site at VanDusen Botanical Garden. Now, it seems, passersby can’t help but turn their heads. The crews have just finished erecting the city’s greenest building — an iconic new 19,000 sq. ft. visitors’ centre — targeting Living Building Challenge and LEED Platinum status. The striking entrance point serves as a welcome portal featuring an interactive education centre, lecture rooms, exhibition space, a cafe, and guest services — all with the intention of revitalizing public interest in the gardens. But it’s the dramatic free-form, organically-shaped roof structure that makes people take a second look, as it emerges midway along the tree-lined block. Its form metaphorically represents petals of an orchid, drooping seamlessly into the surrounding landscape like an extension of the garden itself. It seems fitting that architects at Perkins + Will Canada — a firm long associated with successful wood innovation and green building design — along with their team of engineering consultants, arrived at a sustainable wood solution for the new visitor centre. Coincidentally, the garden gets its name from Whitford Julian VanDusen, a local lumberman and philanthropist whose vision saved the 55 acre parcel of
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land from residential development in the late 1960s. A graduate of the forestry program at the University of Toronto who later worked for the provincial government in the wood industry, VanDusen felt it important to preserve the grounds for future generations. While similarly complex building forms — like Spain’s Guggenheim Bilbao Museum or the Music Experience Building in Seattle, Washington — have been achieved through the use of steel or concrete, the same results have rarely been attempted with wood. Though the $22-million building and roof structure may have looked
seamless on paper, actualizing the design proved a demanding task. Nevertheless, the design team forged ahead. Several of the firms involved were no strangers to the challenges of using sustainably-harvested wood as a primary building material in unconventional circumstances. Structural engineers at Fast + Epp, in particular, had unearthed new potential for wood construction less than five years prior, when they spanned the six acre roof of the 2010 Winter Olympic Speed Skating Oval with pre-fabricated WoodWave panels. Developed by Fast + Epp’s affiliate design-build company Struc-
Nic Lehoux
Roofing
tureCraft Builders, the WoodWave technology was formed from economical and abundant 2x4 lumber pieces and incorporated acoustical, mechanical and electrical elements into each panel. Based on this prior experience at the Oval, Fast + Epp quickly established that similar methods could be applied to the VanDusen project, according to the firm’s managing partner, Paul Fast. He says the key to solving VanDusen’s complexities was “to simplify, and break it down into bite-sized chunks.” He says pre-fabrication seemed the best option, as thermal insulation, sprinkler pipes, lighting conduits, acoustic liner, and wood ceiling slats could all be pre-installed in the unique roof panels. This holistic approach to design — though somewhat daunting in initial conception stages — meant construction crews would spend less time troubleshooting on site and the potential for water damage would be minimized during Vancouver’s inevitably wet months. Given the project’s precedent setting construction techniques and complex geometry, timber construction and pre-fabrication methods seemed the most probable way to meet the project’s “almost-impossible” schedule deadlines. Each of the 71 different roof panel sizes and shapes was informed by the dimensions of the flat deck truck that would transport it to VanDusen from the StructureCraft shop in Delta, B.C. The roof structure modules were typically
trapezoidal shaped panels within a 3.6-metrewide by 18-metre-long shipping size. These panels consist of doubly curved, glue-laminated edge beams that not only act as primary supporting components, but were also ingeniously used as “jig” members on adjustable shoring posts that defined spanning between the complex indi-
…the building’s 50 foot atrium required the development of a universal panel-tocolumn connection to avoid unique connections at every support location. vidual panel geometry during the prefabrication process. Conventional plywood sheathed 2x8 framing spans between the edge glulams, while a secondary layer of light framing forms the support structure for undulating wood slat ceiling finish. Particularly challenging was the framing of large, cantilevered “petal” tips and the central oculus with its steep side walls surrounding a skylight opening, according to Fast.
Engineers also developed a lateral system to support the heavier mass of the building’s green roof, locating steel braces and curving concrete walls strategically, so both the functional layout and breathtaking views of the surrounding garden would remain unimpeded. In addition, the undulating twists and turns of the building’s 50 foot atrium required the development of a universal panel-to-column connection to avoid unique connections at every support location. To aid them in this task, three different highpowered computer modeling programs were used by the architectural, engineering and construction team. This software — Rhino, Revit and Inventor — developed the multifaceted geometrical shape and each individual building component. This three-dimensional technology ensured accurate in shop assembly and precision fits when the pieces later arrived on site. The resulting building is a testimony of the ‘A-Game’ that architects, engineers and builders brought to the table — in some ways, a lasting tribute to the man who fought to save the gardens. Duane Palibroda, P.Eng., Struct Eng., M.I.Struct.E., LEED AP, is the managing associate at Fast + Epp Structural Engineers in Vancouver. His project experience includes numerous award-winning public, institutional, transportation and residential works in Canada and the United Kingdom. January/February 2012
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Bonding & Insurance
Business Continuity and Succession Planning Important to You and Your Surety as a Business Partner By Tim Northup
…having a good plan in place can enhance the surety’s view when underwriting your program.
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he construction industry has many elements of risk, including increasingly complicated projects, tougher contract wordings, and larger job sizes as governments bundle jobs together. You have talented and experienced people to handle these challenges, but what contingencies have you implemented should these people no longer be available? A good business plan is a cornerstone for success in any organization, and key components are continuity and succession planning. Whether your construction company is just opening its doors or is a seasoned entity, having a good plan in place can enhance the surety’s view when underwriting your program. The key question in designing any plan is quite simple: “What could happen when you (or other key people in your organization) are no longer there?” The loss of a shareholder or other key person can occur for any number of reasons, such as illness, disability, death, or retirement. It is critical these business altering events be planned for in advance, so as not to seriously impair the organization. Let’s first discuss traditional “insurance” continuity planning. Consider for example if you, as the sole shareholder and the prime person responsible for running the business, became seriously ill or disabled and could no longer work. Does the business carry critical illness or disability insurance on you? Or if you passed away suddenly, is the business the beneficiary of a key main life insurance policy? These kinds of insurances would provide your business with funds needed (life insurance particularly on a tax free basis) to hire people who can see jobs through to
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completion; pay or reassure creditors who may become nervous about cash flow; provide a measure of certainty to employees who will see a plan is in place and working; and perhaps most importantly relieve your family of financial distress while they try to cope with the emotional impact of your incapacity or demise. It is also important to note, with a continuity plan in place the business has a better chance of retaining its value in the event it is ultimately sold due to your being unable to return to work. If you have such methods of protection in place you should ensure your surety is fully aware of them, as evidence of the lengths your company has gone to protect itself — and the surety. A similar scenario can come into play if you are one of a number of shareholders. In this case, the proceeds of a life insurance policy for example could again be used to not only assist in acquiring additional resources but also to fund the purchase of your shares into treasury by the company. In both this and the above example, the insurance relieves your family of the burden of stepping into the business as owners when they may have no interest in doing so. Succession planning and continuity planning are often discussed together, and while arguably there can be some overlap, they are different issues. Succession is the orderly transition of a business from retiring shareholders to the next group, and provides for the natural evolution of the company. Even if you are the only shareholder, you should give due consideration to your wishes in this regard. What plans are in place to buy out existing shareholders as they
move on? How will the value of the business be determined at that time? Are key employees being groomed to take over and what incentives are being utilized to retain them, such as the opportunity to obtain equity in the company before you retire? With a shortage of skilled workers coming through the ranks to replace the baby boomer generation, this is an area requiring particular focus. As underfunding and lack of planning are two items that can ruin a business, it is important to give both continuity and succession due regard. And as these are dynamic and changing, the plans should be reviewed and updated as needed. They should be documented in a well-crafted shareholders agreement, to include buy-sell provisions between the shareholders and insurances such as those mentioned above. Seek professional advice from those who are experienced in succession planning and understand the construction business. Lastly, work with your surety broker to keep your bonding company apprised. While continuity and succession are only one component of many the surety reviews, your broker can help promote this aspect of your business. Demonstrating your corporate sophistication by showing you are clearly focused on these issues will build additional credibility and help maximize your bond support. Tim Northup is vice-president, contract surety for BFL Canada Insurance Services Inc. He has more than 20 years of surety underwriting experience and is an active member of the Surety Association Of Canada.
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3
Bonding & Insurance
Selecting an Insurance and Bonding Advisor By Steve McConnell
W
ithout a doubt things have become much more competitive in the construction sector. Competition between the specialized construction insurance and bonding brokers in B.C. has always been particularly fierce. Any contractor who attends construction industry functions has no doubt witnessed this first hand. With the recent downturn contractors may have noticed an increase in the number of brokers calling for new business. Surprisingly, some of these new brokers may have been the insurance company underwriter recently turned broker, client list in hand, suddenly competing against their former broker partner for your business. Is this the right time to make a change? To make the correct decision, it is important to understand what your needs are, what type of brokerage fits your company and what type of insurance personality will really help your business thrive. Most insurance companies do not sell their commercial insurance products directly to the public. Instead, they use the independent broker network as their sales force, for which they pay varying amounts of commission based on the skill, size and growth potential of the brokerage. Brokerages fall broadly into one of the following categories: international publicly traded, regional privately held and small retail broker. While each firm type is different in its own way, it is possible to make some sweeping generalizations for each broker type. International publicly traded companies typically hire sales staff on a high base salary basis, a generous expense account and a modest incentive system for new business and account retention.
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They tend to have many specialized departments for different market segments and often have separation between client facing staff and those who negotiate directly with insurance company representatives. As multinationals tend to do, they often shed staff when local offices are forced to make changes to respond to global or national corporate accounting directives. Internal competition within these firms can be intense. A sales person at an international brokerage maintains his or her income and career longevity by making themselves an important part of large revenue generating clients or by controlling a portfolio of solid revenue producing accounts. No doubt inspired by the banking industry, management will often attempt to “institutionalize” larger accounts to prevent any one individual from controlling the client relationship. Trading of employees between competing brokers and even underwriters among these firms is not uncommon as they attempt to acquire staff with strong client relationships to gain market share. Once an account moves over, an attempt to institutionalize the relationship is usually made to make it more difficult for the account to move to another competitor in the future. The global reach that these firms are designed for is not relevant for construction and development companies working within North America. The regional privately held broker has the advantage of being nimble in the local markets they serve. Without a formal internal hierarchy, this type of broker can more easily craft unique solutions quickly to meet client needs. Sales staff are often compensated on a higher commission basis and may also pay their own expenses related to account acquisition and retention. This en-
trepreneurial structure is more apt to focus sales activity on new business production, client service and client retention. Sales staff will usually negotiate directly with both the client and insurance company representatives making communication fast and efficient. Brokers at this type of firm secure their incomes and career longevity by making themselves an important part of the client’s risk management team. Successful brokers are less likely to make multiple company changes as the entrepreneurial structure tends to be more financially rewarding, assuming stable professional ownership. The better brokers are often a part of the ownership group. Small retail brokers tend to have a wide range of very modest accounts in multiple sectors. Neighbourhood based, they are able to provide very quick service for basic uncomplicated insurance needs. Their revenue base is mostly auto and house insurance. Sometimes, sales staff can develop larger commercial accounts and provide specialized market segment expertise but this is rare. Some small retail brokers are actually owned by larger regional players but will use a local trade name to appear more community based. Insurance companies may pay less commission to these smaller brokers on commercial accounts due to the lack of specialized expertise. Sales staff at these brokerages typically fall into one of the following personality groups: the charismatic charmer, the consultant, the technical expert and the clerk. Choose a consultant or a technical expert. Never rely on a clerk for your bonding or insurance needs. If you must use the charismatic charmer, make sure they are partnered with a consultant or a technical expert. Construction insurance is complex. Overlooked details can be very expensive. Your broker is your business consultant, risk manager, negotiator and most importantly, your advocate. They must be experienced in the construction sector and know the products available to you in a fluid insurance marketplace. Above all, they must have the ability to influence key underwriters and decision makers on your behalf. Select a brokerage type that matches the needs, goals and philosophy of your organization. Choose an individual who has the knowledge and strength of character to negotiate on your behalf. A good bonding broker can add tens of thousands of dollars to your bottom line. A sloppy insurance adviser can cost you your business. Choose wisely. Steve McConnell, BA, CGA, CAIB, is vice president of surety at Network Bonding & Insurance Services Inc. www.networkbis.com
Bonding & Insurance
New Home Warranty Insurance How It Works and Who Pays By Dave Kalashnikov
…the builder is the one responsible to make any repairs that are validated and covered by the Homeowners Protection Act Regulation…
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ince 1999, purchasers of new homes in British Columbia have been protected by government statute and corresponding regulation intended to “strengthen consumer protection for buyers of new homes and improve the quality of residential construction” in our province. The purpose of this article is to provide an understanding of the conceptual framework underlying this legislation and to explain how this legislation, in practice, protects home purchasers in British Columbia. The Homeowner Protection Act (HPA) was created as the vehicle to protect new home purchasers. The mechanism used to accomplish this end was the British Columbia Insurance Act, through which Section 189.1 created and defined Home Warranty Insurance as “a contract of insurance covering defects in the construction of a new home or renovation, and consequential losses or costs incurred by the owner.” Though home warranty is called insurance and despite the fact that licensed insurance companies do ultimately backstop the obligations underpinning the warranties issued in this province, there are some major differences between traditional insurance and how the B.C. New Home Warranty program functions. For home purchasers seeking to be compensated for a “poorly” constructed home, the insurance model i.e. indemnification for loss (or as Mike Holmes would call it – “making it right”) is available from the insurance company but, generally, only if the builder is unable to or unwilling to respond to a valid claim that is covered by the leg-
islation and the more technically detailed HPO Residential Construction Performance Guide. Insurance is a two party arrangement in which one party transfers risk to another party in exchange for payment. This is a simple but not insignificant point which had to be addressed by the legislators to allow for the insurance model of compensation to function due to the fact that the insured (the homeowner) would not be paying directly for the warranty insurance coverage nor contracting directly with the warranty provider (the insurance company). The builder is responsible for arranging and paying for the warranty ahead of time (before an owner even exists if the home is being built on speculation). In addition, the warranty must automatically transfer to subsequent purchasers of the home for the life of the warranty. The cost of the warranty can and generally will be passed from the builder to the purchaser, but the transaction for the warranty is never direct between the homeowner and insurance company. The Home Warranty Insurance Provision within the Insurance Act takes care of this fact by amending the act so that “The home warranty insurance is enforceable even if there is no privity of contract between the owner and the insurer.” So what if the builder is still active, building homes and accessible to the homeowner who is seeking remedy under the warranty? The short answer is that the builder is the one responsible to make any repairs that are validated and covered by the Homeowner Protection Act Regulation (Part 2 of the regulation is where the details of the coverage are laid out). This is where the statutory protection moves away from tradi-
tional insurance and becomes much more akin to surety, which uses a three-way contract (called a surety bond) that provides a contractual promise or guarantee of performance by a principal to an obligee and is backed by a surety (the insurance company). In the home warranty example, the homeowner is the obligee, the builder is the principal and the surety is the insurance company. The homeowner will receive remedy, either from the builder directly or the insurance company, however, the builder will remain liable to the insurance company for any payments made to rectify a valid claim. Licensed builders will have entered into a contract with their insurance company agreeing to build to standards as set out in the legislation and agreeing to remain financially responsible for all repairs that fail to meet those standards. This agreement will be supported by an indemnity agreement, or some similar form of financial guarantee and possibly additional security in the form of cash, a bond or letter of credit that will be held by the insurance company. In order to minimize their risk, the insurance company will have underwriting guidelines to evaluate builders not only on their technical qualifications but also their underlying financial strength. So, while New Home Warranty in B.C. is backed by licensed insurance companies, it is the builders who remain financially responsible for the product they build. Dave Kalashnikov is vice president of underwriting with WBI Home Warranty Ltd. For more information, www.wbihomewarranty.com. January/February 2012
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Bonding & Insurance
Maintaining a Good Relationship By Kevin Matwick
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ince the “financial meltdown” and subsequent recession in late 2008, the last few years have been challenging for the construction industry and the economy in general. To better understand the changing financial landscape and its effect on contractor/surety relationships let’s start with the period prior to September 2008. From the mid 2000’s to late 2008 the economy was on fire. The construction industry was booming with contractors obtaining large volumes of work. In some cases getting more work than they could handle! Profit margins were at an all time high with inflation in the construction industry well into the double digits. During this period, many owners faced situations where they had projects to built but no one to build them. It was a time when tenders would close, sometimes with no bidders at all. In addition, general contractors struggled to find subcontractors to work with. It was a great time to be a contractor. Surety companies should have been happy during this time right? Well, to be honest whether the economy is up or down, surety companies worry. It’s in their nature. However, there are good reasons. During this pre-recession time the economy was overheated and some sureties concerns were as follows: • Overextension due to lack of equipment and staff. With the sheer amount of work, sureties diligently analyzed the ability of their contractors to physically complete the work they were undertaking. If heavy equipment was required it was at a premium and difficult to obtain. Manpower shortages due to retiring employees and lack of new workers entering the field were an issue. In addition, key employees were being “poached” by other companies potentially leaving their clients with inadequate or unqualified employees. • New companies being formed. With profit margins at an all time high an environment was created where employees of existing companies wanted to branch out on their own. But did they have the necessary experience to run a business? Many skilled superintendants and project managers who could run jobs effectively had little or no experience in running an entire company. • Increased overhead expenses. With the ever expanding work loads came the necessity for more equipment, more administrative staff, and larger offices. Increased equipment requirements sometimes came with increased debt loads.
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Now came the crash. An extremely busy period, filled with many opportunities came to a rather abrupt end towards the latter part of 2008. During this phase of the economy sureties looked carefully at: • Project financing. With lenders failing, developers having financing issues and jobs being cancelled, proper financing was crucial to ensure contractors could maintain sufficient liquidity to meet their day to day obligations. • Banking relationships and credit facilities. Banks were nervous and quick to “pull the plug” on a contractor’s lines of credit which could have fatal results. In addition, those contractors who acquired increased fixed assets and the accompanying debt during the good times now had yards full of idle equipment and no cash flow to service the debt. Today’s economy is improving but we are not out of the woods yet. Sureties continue to monitor the following areas: • Financial “staying power” — the company’s net worth. A fairly strong position in relation to a contractors work program is necessary. This position could be fragile for new companies who just started up towards the end of the construction boom and haven’t had enough time to grow their retained earnings. • Working capital. Companies must demonstrate they have the necessary liquidity to meet day to day obligations. • Overhead expenses. Nothing brings down a company faster than overhead expenses which are too high in relation to the revenue and profit margins they are able to generate. Companies who expanded overhead during the boom must now look at ways to reduce these expenses if revenue and margins have declined. • Overall debt load. Companies who increased their fixed assets with debt must be able to demonstrate they have the ability to meet their debt servicing requirements. • Banking relationship. A solid banking relationship is important with the lender providing the operating line of credit. This will avoid any unwanted surprises such as the cancellation of the line of credit. Overall debt loads, and cancelled lines of credit have been the result of many contractor failures over the last few years sometimes causing losses to surety companies. • Quality of accounts receivable. For many contractors, the accounts receivable represent a large portion of their asset base.
Should they have problems collecting some of their larger receivables it could spell cash flow troubles and even business failure. The surety will want to see aged listings of the accounts receivable and understand the company’s credit and collections policies to ensure these assets are protected. Having said all this, here are a few tips for contractors to maintain a good relationship with their surety: • Th e best relationships exist when the contractor considers the surety a partner rather than a supplier. When a surety issues a bond for a contractor they are pledging their assets and guaranteeing the contractors performance. Both parties have a vested interest in seeing the bonded project completed to the owners’ satisfaction. • Keep surety updated with regular reporting of financial information. Surety companies who have up to date financial statements and work on hand reports understand exactly where the contractor is at financially and are able to respond quickly to bond requests and provide the maximum surety support available. Without updated financial information contractors run the risk of delays when requesting bonds or worst case scenario being declined a bond. • Report any problems to surety immediately. The surety is the contractor’s partner with a vested interest in their success. Sureties have been known to provide financial and other assistance to contractors to help overcome problems. The surety however cannot help if unaware of existing problems. Many contractors are embarrassed to let their surety know there are issues or are concerned that further bond support will be suspended if they disclose negative events. All too often by the time the surety finds out about the problems it is too late to help and the company ends up in default of a contact or going out of business. Finally, contractors should make sure they have a good surety broker who understands both the surety and construction industries. Surety products are underwritten by insurance companies and delivered via insurance brokers, however bonds are a specialized financial product. It is important to have someone on your side that understands the entire bonding process and can provide the best possible service. Kevin Matwick is vice president of construction surety services for Jardine Lloyd Thompson Canada Inc. www.jltcanada.com
MAKING VANcOUVER MORE ENERGy EffIcIENT, ONE DAzzlING lIGhTING PROjEcT AT A TIME BEING POWER SMART MAKES BUSINESS SENSE Ever been dazzled by Vancouver at night? Chances are, you were looking at buildings with lighting designed by Nemetz (S/A) and Associates Ltd. For more than 50 years, Nemetz has provided electrical engineering and lighting design services for some of the most spectacular high-rises in Vancouver, including hotels, residential buildings and office towers. Lately, they’ve also worked with BC Hydro’s New Construction Program to help their clients incorporate energy efficiency into their new buildings, from the ground up. “Energy efficiency is one of the most important design considerations for most major projects,” says company President Steven Nemetz, “because you really can achieve significant savings through the right lighting sources and controls. We’re well-versed in what BC Hydro requires to qualify a project for the New Construction Program, and can help our clients take advantage of the program’s benefits, including incentives based on electrical savings.” BC Hydro’s New Construction Program helps reduce the cost of building better, greener, more energy-efficient buildings. Visit bchydro.com/construction or call 1 866 522 4713.
A11-419
Infrastructure
Innovative Bridge Launch By Malika Ali
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ometimes the simplest bridge designs produce the most complex and innovative engineering and construction solutions. Such is definitely the case with the new Athabasca River Bridge on Highway 63, carrying industrial and commuter traffic over the Athabasca River, near Fort McMurray in northern Alberta. What makes this bridge unique is not the structure itself, but rather the launched‑girder erection technique used in its construction. This technique eliminated the need for temporary erection towers and the piece‑by‑piece erection of structural steel that are typical of conventional erection methods. The new bridge is anticipated to be one of North America’s heaviest steel bridges, with a total structural steel weight of more than 6 million kilograms. The challenges involved in designing and constructing this massive structure included the severe winter climate of the region; the requirement to design for over‑sized trucks which access oil sands projects via this bridge; and the decision to launch all 10 girders simultaneously, resulting in what is believed to be the widest launch ever undertaken in North America. Serving the growing needs of the City of Fort McMurray in north‑eastern Alberta, Highway 63 provides an important link extending from south of Fort McMurray to the major oil sands projects located north of the city. The traffic volumes on this four‑lane highway continue to increase because of ongoing major oil sands developments
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and commercial and residential developments in the area. Two existing bridges, the Grant MacEwan and the Steinhauer, carry Highway 63 over the environmentally sensitive Athabasca River. Alberta Transportation, the provincial transportation ministry, developed a functional plan which determined that a new bridge on Highway 63 over the Athabasca River was required: the 472-metre-long, 7-span, steel I-girder bridge is designed to carry five lanes of traffic. Of the five, three lanes will ultimately serve as core lanes and two will be used as collector‑distributor or CD lanes. In addition, the new bridge will include a 4.2‑metre‑wide walkway and an under‑deck utility and duct corridor.
BRIDGE DESCRIPTION The Athabasca River Bridge is 472.0 metres (m) long with a span arrangement of 61‑76‑61‑61‑76‑76‑61 m. These spans were selected to match the span arrangement of the adjacent Steinhauer Bridge. Aligning the new piers to match the existing ones provides a beneficial shielding effect that reduces the downstream design forces on the new piers. The bridge also includes a 4.2‑m‑wide walkway and an under‑deck utility corridor.
SUPERSTRUCTURE The 33.0‑m‑wide, five‑lane bridge superstructure features 10 lines of 3.0‑m‑deep, I‑shaped steel plate girders spaced at 3.3 m for the typical
straight portion on the west side of the bridge. Girders for the non‑typical east span of the bridge were spaced at 3.9 m to take into account the 340‑m design curve (which is required to accommodate the 90 km/hour design speed on the bridge). In Alberta, bridges are normally designed with the capacity to carry CL‑800 (800 kN) vehicles; however, this bridge was designed for both CL‑800 vehicles and a special 28‑axle (10,000 kN) overload truck, used for transporting extraordinarily heavy loads to the oil sands plants.
SUBSTRUCTURE Large, box‑type, voided abutments were designed for this bridge, based on the geometric constraints. Each abutment consists of a bearing seat, back wall, grade beam, roof slab, approach slab, and closing wing walls all supported on two rows of steel H‑piles driven into bedrock. To accommodate a large number of utility lines and duct banks through the backwall in one of the girder bays, a special vault was constructed within the abutment to provide the required service connection access to underground services. Ice is considered to be the most important factor at this site. Ice forces on the bridge piers are significant, and ice jams produce the highest water levels at the site. As such, the new piers are constructed of solid tapering pier shafts, similar in appearance to the Grant MacEwan and Steinhauer piers. The piers are constructed on a single
Infrastructure structure. The girders cantilevered the maximum clear span of 76.0 m without the use of intermediate temporary bents. An inclined launch nose attached to the leading segment of girders made touch down at the piers. The launch was completed on schedule on November 10, 2009. The speed of the launch typically allowed a length of 36 m to be moved forward in about three hours.
CONCLUSION
row of 1.8‑m‑diameter, rock‑socketted caissons. The added benefit of using caissons is that they are scour‑resistant and require only 50 per cent of the disturbed footprint within the streambed.
LAUNCHING The incremental launching method has been used successfully to erect torsionally stable, concrete box girder structures throughout the world. This technique has also launched small steel bridges across North America and Europe. However, this
method has rarely been used to launch all 10 girders simultaneously, resulting in what is believed to be the widest launch ever undertaken in North America. With the total weight of structural steel exceeding 6 million kilograms, this segmental launch has also set a precedent as one of the heaviest steel bridge launches in North America. Aspects of the launch that required particular consideration and detailed engineering included the launch nose, launch pad, girder supports, pushing assembly, and a review of the permanent
The new Athabasca River Bridge design and construction project combined cost savings, environmental consideration, novel construction techniques, and outstanding engineering value to provide enhanced safety and to meet the future traffic demands of the Fort McMurray region. In the last 15 years, this is the only bridge of such width and weight that has been launched in Alberta. This represents a true innovation: re-visiting this launched girder technique serves Alberta’s engineering and construction industries as a timely reminder of this alternative method of designing and constructing new bridges. We note with pride that the Athabasca River Bridge has received inquiries from Canadian and U.S. engineers interested in applying its innovative concepts to other international projects. Malika Ali, P.Eng., M.Sc., is a senior bridge engineer at CH2M HILL Canada Ltd. in Edmonton.
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Concrete pipe Box culverts Manholes
Stormceptor Oil water separators PVC Lined products January/February 2012
Perforated pipe Catch basins Custom Precast construction business
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Infrastructure
Providing Clean Drinking Water
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major water utility infrastructure project in the Coquitlam watershed is currently underway. Metro Vancouver, working in cooperation with the City of Coquitlam, is undertaking the Coquitlam UV Disinfection Project to ensure the region’s continued supply of high-quality drinking water. The existing Coquitlam Water Treatment Plant provides approximately 370ML/d of potable water or one third of the total water supply delivered in the Metro Vancouver region. As part of the expansion and upgrade of this facility, a new ultraviolet (UV) disinfection plant and an operations and maintenance centre are being built. The scope of work also includes upgrades to the existing ozonation facility which will improve the efficiency of the treatment process. The total facility footprint will be nearly 21,000 square feet (2,000 square metre). The new UV Disinfection Project will enhance the primary disinfection capability of the Coquitlam water treatment facility, and complement the existing ozone and chlorination processes. The UV system is being implemented to meet Cryptosporidium disinfection requirements under the Guidelines for Canadian Drinking Water Quality. “Implementing the Coquitlam UV Disinfection Project is an important component of Metro Vancouver’s mandate to provide clean, safe, high quality drinking water to nearly 2.3 million people in the region”, says Inder Singh, Metro Vancouver senior engineer and project manager. The design flow capacity of the facility is 1200 million litres per day. The UV system supplied by Trojan Technologies is composed of 8 UV units
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using high efficiency UV lamps with long lamp life and low energy use. Kenaidan Contracting was awarded the general construction tender in July 2011 and broke ground in August 2011. As of the January 2012, Singh reports soil excavation and installation of temporary shoring is the primary construction activity. This will be followed by the large diameter site piping installation, mass concrete encasement and concrete foundations. The final excavation depth will reach up to 33 feet and require the removal of 80,000 cubic meters of soil. Significant challenges associated with building such a facility within a protected watershed environment include the management of surface runoff in an area where more than 100 mm of rainfall within a day is not uncommon. “Managing groundwater and excavating difficult soils, while maintaining the integrity of existing infrastructure such as a 3 meter diameter water main have been particularly difficult at this stage of the project,” says Singh. “Close collaboration amongst the project design consultants, the contractor and Metro Vancouver Operations staff has been the key to successfully managing the project risk during this critical stage of below grade work.” About 9,000 cubic metres of concrete and 400 tonnes of structural steel will be used in the construction of the plant. To meet seismic design criteria, some foundation walls will be in the order of 1 metre thick. Installation of underground pipes will range up to 2.4 metres in diameter for the larger pipe spools with the largest valves weighing more than 55,000 lbs.
Targeting a minimum LEED Silver certification, the plant has a number of sustainable features including: • unique vertical orientated UV pipe loop designed to reduce the building footprint • hydronic heating and cooling system using the water pipelines • energy efficient UV lamp technology saving on long term operating costs and electricity • environmental enhancements for fish and wildlife as part of the restoration plan. Additional sustainable features include the use of EcoSmart concrete, installation of electrical vehicle charging stations and the use of recycled building materials. The selected ultraviolet technology will reduce energy consumption by approximately 30 per cent relative to conventional systems. “The facility incorporates many unique sustainable features, which will minimize energy consumption during operations, reduce impact on the environment and provide Metro Vancouver staff with a healthy and effective work environment,” says Singh. The $110 million plant is scheduled to complete by the end of 2013.
Infrastructure
A New Landmark Gateway Walterdale Bridge for the 21st Century By Mike Bindas
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dmonton is a river city, and as long as people have lived here they have sought ways across the North Saskatchewan. The Walterdale Bridge (formerly known as the 105 Street Bridge) opened in 1914, has linked the north and south sides ever since. The Walterdale Bridge carries two lanes of traffic, has narrow sidewalks on either side, and provides limited trail connections at its ends. For almost a century this triple span-through truss has served users well, but now the Walterdale is quickly approaching the end of its service life. Edmonton’s river valley is truly the heart of the city, and the landings on either end of the Walterdale Bridge have played an important part in Edmonton’s history and its development. Over millennia both sides of the river have been traditional gathering places for Aboriginal inhabitants, and as such are rich with cultural history. In the 1800s, the north shore was home to three different Edmonton Forts as well as the Fort Edmonton Cemetery and Traditional Burial Ground, of which portions remain, and are commemorated to this day. On the south side of the river, John Walter, the city’s first millionaire, operated a lumberyard and ran a cable drawn ferry across the river near the site of the existing bridge. Considering the area’s significant history, simply building a run-of-the-mill bridge to replace the existing one just didn’t seem to fit. The new Walterdale Bridge will be a signature bridge, as recommended and approved by Edmonton’s city council. For the purpose of this project the term “signature bridge” was defined as follows: “The new Walterdale Bridge will be a unique structure located in the heart of Edmonton’s river valley, respecting the setting, and creating a landmark gateway to the city’s downtown.” The new bridge is expected to become a landmark within our great city so its design and integration within the river valley must be developed in consultation with Edmontonians. Throughout concept planning, and now during the design phase, the project team has sought out input from the community through public open houses, stakeholder interviews, and traditional cultural ceremonies. The city continues to solicit feedback through design and into construction. The city considered many concepts when deciding the type of bridge to build, including girder, cable stayed, extradosed, and arch. In the end city council chose arch typology. The project team explored different options for design of the bridge substructure, including thrust block and pile supported foundations, and several arch configurations including single and twin arches in tied and non-tied designs as well as in tilted and vertical positions. In winter 2012 the project is in the final stages of preliminary design.
A rendering of the new Walterdale Bridge, which will go to tender in fall 2012.
The bridge will be approximately 250m long, wide enough to accommodate three lanes of traffic with shoulders, and with multi-use trails on either side. Its location has presented some challenges. The north end lands immediately to the east of the existing bridge, and the south end will need to be raised by about 3 m to stay above traditional flood levels. Also, the existing bridge will remain open to traffic while the new bridge is being constructed. Overall, the project involves construction of the new signature bridge, realignment of two roads — Walterdale Hill Road and Queen Elizabeth Park Road, both on the south side of the river —connection with the existing trail network, and full removal of the existing bridge and piers. The project budget, including all associated engineering and required city services, is $132 million.
Physical site constraints and time constraints are identified challenges to completing the project on time and within budget. Several utility companies will have to remove or relocate infrastructure prior to construction, and a number of other community projects are happening on either end of the bridge. Coordination of all parties is paramount to ensuring work done by one does not mean re-work by another. Work on site will begin as early as spring 2012, starting with the removal and relocation of utility infrastructure. The construction tender is anticipated for fall 2012, with bridge construction and demolition taking place between 2013 and 2015. Mike Bindas, P. Eng., is senior project engineer at the City of Edmonton. January/February 2012
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Legal File
Subrogation Rights Under course of construction liablilty policies By Gordon C. Weatherill
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onstruction projects are subject to many different risks, including damage to the project due to the negligence of a contractor, subcontractor, supplier or trade. It is common for the owner and/or general contractor to obtain specialized insurance coverage for many of those risks, known as Builder’s Risk Insurance (or Course of Construction Insurance). The typical Builder’s Risk policy provides coverage not only for the owner/contractor who purchased the policy but also for most if not all others involved in the project. What if one of those others, through negligence, damages the project, perhaps even catastrophically during the course of construction? Will the negligent wrongdoer be responsible to pay for the loss? The answer, in most cases, is no. The decision of the Supreme Court of Canada in Commonwealth Construction Company Limited v. Imperial Oil Limited and the subsequent cases that follow it make it clear that: • where a subcontractor (or other party supplying labour or materials to the project) is an insured under a Builder’s Risk policy (either as a named insured or unnamed insured as someone within a class of persons intended to be protected) , the insurer has no right of subrogation. Thus, if the subcontractor or trade is negligent and causes damage during the course of construction, the insurer cannot step into the shoes of the owner or contractor and seek to recover from the negligent subcontractor. •w here the negligent party is neither a named nor an unnamed insured, the waiver of subrogation clause in a builders’ risk policy may be construed so as to bar the insurer from pursuing a subrogated claim. In Commonwealth Construction, the general contractor was Wellman-Lord (Alberta) Ltd. (“WLA”). WLA entered into a contract with Imperial Oil for the construction of a fertilizer plant. Commonwealth was WLA’s subcontractor charged with the installation of process piping. A fire took place during that installation for which Commonwealth admitted fault. In the builders’ risk policy taken out on the project, the insured was described as “Imperial Oil Limited and its subsidiary companies and any subsidiaries thereof and any of their contractors and subcontractors”. The insurer paid out (to Imperial) for the damage caused to the project by the fire and then brought an action in the names of Imperial and WLA against Commonwealth by way of subrogation. The Alberta Court of Appeal held that the insurers had the right to subrogate against Commonwealth. 34 construction business
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Commonwealth appealed to the Supreme Court of Canada. The Supreme Court of Canada framed the question as follows: …in the context of the construction contracts, did the various trades have, prior to the loss, such a relationship with the entire works that their potential liability therefore constituted an insurable interest in the whole? The Supreme Court answered that question in the affirmative, holding that the trades had, prior to the loss, such a relationship with the entire works that their potential liability therefore constituted an insurable interest in the whole. Accordingly, Commonwealth was an insured whose insurable interest extended to the entire works prior to the loss and, applying basic principles of insurance law, the insurers had no right of subrogation and could not pursue a claim against Commonwealth in the name of the property owner or the general contractor. An article on builders’ risk policies summarizes this principle from Commonwealth Construction as follows: …it is clear that the modern trend has been to limit the subrogation rights of the all risk insurer and to extend an immunity to the class of persons who supply materials to the subject matter of the policy, whether or not the party procuring the policy intended to include them as unnamed insureds. The courts have clearly signalled that a property insurer having issued an all risk policy cannot maintain a subrogated claim against a subtrade if the latter contributed materials or labour to the project and the policy contains a waiver of subrogation clause. The underlying theory is that the parties to the construction project, having expressly agreed that one of the parties must obtain a builders’ all risk policy, have also implicitly agreed that in the event of a loss all of the parties would look to the builders’ all risk policy as the sole remedy in the event of loss and would not, as between themselves, seek to shift that loss. The insurer is bound by this implied agreement and is therefore unable to use subrogated proceedings to try to shift the loss to one or more of these parties. In Sylvan Industries Ltd. v. Fairview Sheet Metal Works Ltd., the builders’ risk policy named only the owner of the project as the insured. A fire substantially damaged the mushroom barn that was under construction. It was alleged that one of the subcontractors (Fairview) was negligent in that its employee exposed sealant to an open flame. The issue on appeal was whether the general contractor (Zenith) and Fairview were unnamed insureds and therefore immune from the subrogated claim brought by the insurer. After reviewing the various construction contracts and the insurance policy, the B.C. Court of Appeal concluded as follows at paragraph 17:
The typical Builders’ Risk policy provides coverage not only for the owner/contractor who purchased the policy but also for most if not all others involved in the project. In this case both Fairview and Zenith suffered losses in the fire and the insurer indemnified them through Sylvan for those losses. The policy provides that no subrogation lies against a “…corporation, firm, individual, or other interest with respect to which insurance is provided by this policy.” Sylvan argues for an interpretation of a policy entitled “Builders’ Risk Comprehensive Form” that would not cover builders. Given the special nature of builders’ risk policies, the judicial pronouncements on the commercial necessity for inclusiveness, and the language of this policy, I am of the opinion that the trial judge reached the right conclusion when he found that the contractors and subcontractors were unnamed insureds by necessary implication. While these two cases articulate general principles potentially applicable to any builders’ risk policy and construction project, as in any insurance case, the policy wording is critical. The policy has to be construed to determine if the subcontractor is, in fact, a named or unnamed insured. If the policy is one under which the trades are not named insureds, the insurer could word the policy in such a way as to eliminate coverage of unnamed insureds or to exempt trades from the protection of a subrogation clause exemption. Further, the particular loss at issue may not fall within the policy coverage because it did not occur during the course of construction: see, for example, Sherritt Gordon Ltd. v. Dresser Canada Inc., and DaishowaMarubeni International Ltd. In this scenario, the insurer will be able to sue the subcontractor in the name of the insured owner or general contractor as the “anti-subrogation rule” would not apply. Alternatively, the particular type of negligence (e.g., faulty design) may be excluded from coverage. Gordon C. Weatherill Q.C. is a senior litigation partner at the law firm of Lawson Lundell LLP. He has practiced for more than 30 years with that firm in the areas of engineering, construction, insurance and products liability.
Legal File
The Serious Matter of Business Names By J. Marc MacEwing
…incorporation does not protect business people from personal liability in all instances.
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very individual or company is a separate legal person. People incorporate companies to carry on business because the company’s separate legal personality in most respects protects its officers, directors and shareholders from personal legal exposure for liabilities incurred in the course of its operations. Most of such liabilities arise from contracts entered into by the company. Individuals related to the company are also insulated from its liabilities by the contractual principle of privity — that only a party to a contract can sue or be sued upon it. Ignorance or lack of care in day to day business practices often complicates the rights and responsibilities surrounding separate legal personality, with the risk of parties incurring unintended liability. From a company law point of view, a business need not incorporate. An unincorporated business, whether it operates in the name of an individual or a trade name such as “ABC Contracting”, is a proprietorship. Liabilities arising from a proprietorship’s business accrue directly and fully to its operating individual in his or her personal capacity. When a business incorporates, it obtains a legal name which includes “Ltd.”, “Inc.” or “Corp.” to reveal to the public the limited liability nature of the business. Generally, liabilities arising from the company’s business accrue only to the company. However, even incorporation does not protect business people from personal liability in all instances. Fraud by a company or breach of trust, such as in the construction context by misappro-
priating funds received on account of subtrades’ work, are considered to be civil wrongs of such a serious nature that the “corporate veil” can be pierced so that responsible directors and officers may be exposed to personal liability. Because of the separation of legal personality in the case of incorporation, it is critical that proper consideration be given to the risk of carrying on business as a proprietorship. That mode of operation is not recommended as a means of doing business if the liabilities which could arise would be significant enough that the operator would not like to see them apply against his or her personal assets. For example, the often substantial and sometimes catastrophically large amounts involved in construction-related disputes can bring financial ruin to builders or design professionals who did not incorporate for the purpose of doing business. Further, in the cases of both a proprietorship and a company, it is necessary that care be taken in all contracts, correspondence and other business documents to set out accurately the proper name of the business, so as to avoid misrepresenting that a proprietorship is a company or failing to identify the incorporated status of the business. Inaccuracy in the way in which the legal nature of the business is characterized to third parties can have significant negative repercussions. One of the most serious potential results can be inadvertent failure to obtain the benefit of contracting as a company. Even if a business is incorporated, if that company’s full name with
identification of its limited liability status is not set out in a contract, it may be interpreted that some other, unincorporated, party actually entered into the contract. In the case of a small business, that party will naturally be assumed to be the owner or operating mind of the business in his or her personal capacity. The potentially serious result of a business person unintentionally becoming a directly contracting party is obvious. Legal complications can also arise from other imprecision in identifying exactly what entity is actually involved in the business relationship. Problems can be created by using inaccurate names, corporate nicknames or trade names; mistakenly using the names of related companies and using company names inconsistently as between different documents. Those problems relate to the identities of both who is entitled to enforce a contract and who is subject to having a contract enforced against him, her or it. The risk arising from such uncertainty accrues to the responsible party, on whom the onus will rest in a dispute to establish on the balance of probabilities its preferred characterization of the defined contractual relationship. It is recommended that all business people and their staff be properly instructed as to the importance of accuracy and consistency in the identification of the business entity in all documentation. J. Marc MacEwing is a lawyer with Shapiro Hankinson & Knutson Law Corporation, Barristers and Solicitors. January/February 2012
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Legal File
Risk to Contractors and Owners Environmental Protection Legislation By Sigurd Delblanc
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nvironmental hazards pose significant potential liability for construction contractors yet the risks associated with violating environmental protection legislation often are given little consideration. The fining of an Edmonton-based construction firm early this year has made headlines, pointing out the costly consequence of violating environmental protection legislation. Clark Builders pleaded guilty to the charges under the Fisheries Act as the result of depositing a deleterious substance in water frequented by fish, resulting in fines of $285,000.00. In 2008, Clark Builders was contracted to build an addition to the aquatic centre at the Royal Glenora Club in Edmonton, Alberta. Early on it was decided that an EPCOR water main needed to be relocated. EPCOR moved the water main, although as it turned out, not completely out of the footprint of the new facility. Clark Builders received the new EPCOR plan setting out the location of new water main, but when the area was prepared for initial construction, the water main was not located and marked. Clark Builder’s piling subcontractor arrived on site in July of 2009 and commenced drilling the foundation piles as they were marked. In drilling the first pile location, the water main was ruptured, releasing treated drinking water at a rate of 3,000 litres per second. As many as 12 million litres of chlorinated water ran into the nearby Fort Saskatchewan River before the water main could be shut off or dechlorination tablets could be used to treat the escaping water. Subsequent testing of the river water revealed a chlorine con-
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tent 3,900 times greater than that which is safe for fresh water fish. Under the Fisheries Act, the release of treated water into the river constituted an offence punishable by fines of up to $500,000.00 per offence and possible further liability to the Crown for any and all costs associated with mitigating the environmental impact of the infraction. Despite the significant cost of penalties and fines, it seems some contractors simply overlook environmental legislation. Contraventions of Alberta’s Environmental Protection and Enhancement Act can result in fines of up to $1,000,000.00. British Columbia’s Environmental Management Act provides for the same $1,000,000.00 fine for contraventions of the Act. While commercial general liability policies (CGLs) may provide coverage for civil liability arising from an environmental incident, almost all exclude the payment of fines or penalties. In addition, environmental protection legislation may provide for strict liability with respect to the cost of mitigation and restoration once a conviction has occurred. Under the Forest and Prairie Protection Act, the maximum fine under the regulations is $5,000.00. However, a party found guilty of failing to keep a fire under control or allowing fire to escape could become liable to the Crown for the costs associated with fighting the fire and to aggrieved land owners who have suffered losses as the result of the fire. Similar provisions are found in British Columbia’s Wildfire Act. Each year thousands of hectares of forested land are destroyed by wildfires, many caused by
human activity. The Crown has become more and more vigorous in its attempts to recoup its fire suppression costs and timber losses when there is industry involvement; prosecutions and civil actions against contractors are not uncommon. Damages are frequently in the millions, or even tens of millions of dollars, often exceeding common CGL limits putting the contractors directly at risk. Not only will contractors be responsible for their infractions, but often land owners will be held liable as well. If the land owner exercises even a low degree of care and control over its contractors, it can be held liable for the contractor’s environmental violations. In addition, some environmental protection legislation places a positive onus on land owners to ensure that precautions are taken. If hazardous substances are known to be stored on their land, there is a duty to ensure the substances will not come into even indirect contact with animals or plants. In 2009 when 1,600 ducks died after landing on Syncrude’s tailings ponds before the company was able to set up its preventative air canons, Syncrude was charged under both Alberta’s Environmental Protection and Enhancement Act and the Federal Migratory Birds Convention Act, 1994. Syncrude was found guilty and received the maximum fine under each Act, $500,000.00 and $300,000.00 respectively. In addition, Syncrude was required to pay additional compensation to the Crown in the amount of $2.2 million which was distributed to various environmental groups and projects. And while Syncrude’s tailings ponds represent a more obvious environmental risk than exists on a standard construction or work site, owners and contractors still need to be cautious. The improper storage or accidental spill of hazardous materials on the construction site can violate several different pieces of provincial and federal legislation and result in fines and civil liability. Contractors and owners are facing increasing regulatory control. New regulations spanning broad areas are introduced with little fanfare. Failure to meet regulatory guidelines can lead to significant fines and also serve to tilt the scales in any civil litigation which may arise, which in these times seems to occur more often than not. It is very important to be aware of all of the relevant legislation which may come into play on a particular project. Sigurd Delblanc is a partner at the firm of Bryan and Company LLP in Edmonton. His focus is on defending contractors, owners and design professionals in construction and regulatory matters.
Architect Corner
Innovative Cultural Amenities By Mike Hill
Technical Features
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he recently finished Capital Tower Development on Seymour Street in the centre of downtown Vancouver incorporates an extremely unusual set of requirements and innovative solutions. The 43 storey tower contains 37 floors of residential units which sit above a podium which includes four floors of cultural amenities provided to the city by the developer in exchange for increased site density and building height. The building podium sits on the historic 1922 Capital Theatre site and abuts the side of the city’s Orpheum theatre and it mirrors the Orpheum’s height to provide continuity on Seymour Street. The podium’s cultural amenities include the new Vancouver Symphony School of Music, offices for the VSO, the Orpheum Annex Theatre, the Orpheum Stage Extension, plus a number of Orpheum back stage amenities. The original Capitol Theatre on the site was a live performance and music house with its own orchestra and a renowned Wurlitzer organ, the largest of its kind in Canada at the time. The theatre was demolished in the early 1970s and replaced with the Capitol 6 multiplex, which was located on the site until its demolition in 2005.
Development Concept The School of Music is an extremely advanced facility with the highest acoustic standards and IT infrastructure. It contains a 120 seat recital hall, ensemble rooms, instruction rooms
(group and private) and recording facilities, school administration offices and hospitality facilities. The recital hall has been recognized instantly as one of the finest in North America. The sophisticated design of the recital hall permits “tuning” of the room through manipulation of the room surfaces. The floor is an innovative automatically moveable platform system which permits various seating arrangements, ranging from float to tiered, with a variety of tiered arrangements. The recital hall incorporates recording and distance learning “master class” capability. The Orpheum Annex is a black box type theatre which has moveable seating, moveable acoustic wall treatment and a suspended wire grid. The three storey space can be used for orchestra rehearsals, smaller performances and recording. The Annex is operated separately by the city, but cooperates with the VSO SOM to share some amenity space. A major feat of the project was to, within the podium, incorporate a structural, acoustically isolated void immediately beside the stage in the adjacent Orpheum. With manipulation of the dividing property line in three dimensions, the city has been provided with a void into which they intend to extend the stage of the Orpheum Theatre. This is a long desired improvement to the theatre and only became feasible and a reality through the innovative agreement between the developer and the city.
Such a project obviously has had a significant number of technical challenges, including architectural planning, acoustic design, structural, and mechanical. The architectural design had to include massing that not only met the client’s development and sales requirements, but met with the city’s approval regarding view corridors, massing, finishes, as well as respect for the adjacent Orpheum Theatre. The project acoustics requirements represented a significant challenge to the entire team. The acoustic requirements included both isolation of sensitive spaces as well as interior space absorption. In terms of absorption, the requirements range through various levels of sound deadening to diffusion, in order to respond to a wide range of music requirements. In addition to typical double wall construction for partitions, many of the acoustically sensitive rooms were constructed as “rooms within rooms” with isolated second sets of floors, walls and ceilings. In addition, major innovative structural dampening details isolate the Music School floor structures from the vibration in the elevator shafts serving the tower. For each of the acoustically sensitive spaces the mechanical systems had to be design to an extremely low 15 PNC level, using very low air velocity, duct isolation and low-disturbance grille design. The recital hall contains the finest acoustic treatment, wherein the finishes incorporate BC Big Leaf Maple diffusion elements, along with BC Basalt wall faces, all of which aid in the extremely handsome nature of the hall. As noted above the acoustic requirements of the project required unique structural solutions which also had to consider the high seismic zone in Vancouver. A 50 mm acoustic separation gap was required in the slabs around the elevator core on the first four floors, including the fifth floor slab, which carries the loads of the 38 floors above it. Lateral and vertical isolators were installed to support weight of the slab and help transfer inertial forces from these floors into the core walls during an earthquake.
Conclusion The Capital Tower, with its cultural amenities is an innovative project which maximizes the opportunity of the partnership between the city and the developer, and in addition provides the city with a trio of world class amenities: the VSO School of Music, the Orpheum Annex Theatre, plus the Orpheum stage expansion space. Mike Hill, MAIBC, LEED®AP, is a partner at Vancouver based Bingham Hill Architects. January/February 2012
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Industry News
Advertiser Listings Atlas Roofing .............................................. 11 Aviva........................................................... 17 BCCA . .....................................................OBC BC Hydro .................................................. 27 BFL Canada Insurance Services Inc........... 5 Buildex .............................................. 32 & 33 Eagle West Cranes ............................ 15 & 19 Glotman Simpson ....................................... 9 ICS Group ...................................................14 Langley Concrete Group ......................... 29 Levelton ......................................................17
Evergreen Line The first construction contracts have been awarded for the long-awaited Evergreen Line. Two local companies were awarded pre-construction contracts, officially marking the start of work on the project. Langley-based Pedre Contractors Ltd. was hired to install new underground power lines in Port Moody and Coquitlam. Hans Demolition and Excavating, based in Surrey, will remove two vacant buildings in Coquitlam and one in Burnaby. The Evergreen Line, an 11-km rapid transit line linking the communities of Port Moody, Coquitlam and Burnaby with the existing Millennium Line SkyTrain, is estimated to cost $1.4 billion. The Province of B.C. will select a primary contractor to design and build the line this summer. Engineering Honour The Coast Meridian Overpass (CMO) has won its third engineering award within a span of a year. International Bridge Technologies Inc. (IBT), a member of the CMO designbuild team led by SNC-Lavalin Constructors (Pacific) Inc., has received a prestigious Honor Award from the California branch of the American Council of Engineering Companies’ (ACEC) 2012 Engineering Excellence Awards. IBT provided the CMO’s structural engineering. The CMO was one of only two Honor Award projects outside California, and the only Canadian project. Air Pollution Regulation Owners and operators of older backhoes, forklifts and many other diesel-powered non-road machines in Metro Vancouver have to register their machines in 2012 and start paying fees to comply with new air pollution regulations. In February 2011, after several years of studies and discussion, Metro Vancouver’s Board of Directors approved the Non-Road Diesel Engine Emission Regulation Bylaw. The bylaw came into effect on Jan. 1, 2012. The bylaw does not apply to engines less than 25 horsepower, machines used in agricultural operations, emergency generators and personal recreational machines such as allterrain vehicles and snowmobiles. An on-line registry and payment system for non-road diesel engines is available on the regional district’s website, www.metrovancouver.org. For more information and a link to the on-line registry, www.metrovancouver.org/nonroaddiesel. 38 construction business
January/February 2012
RCABC...................................................... IBC Reliable Equipment . ................................... 8 Western One ................................................ 4 Westland Insurance..................................... 8 Wilson M Beck Insurance.........................IFC WorkSafe BC................................................ 7
Boulanger joins Supermétal Sylvie Boulanger has joined structural steel construction company, Supermétal, as vice president, technical marketing. Well-known among the Canadian steel industry, Boulanger was Québec regional manager of the Canadian Institute of Steel Construction (CISC) for the past 10 years. Niro Heads Task Task Construction Management has announced Tony Niro is the new president of the company, effective immediately. Co-founder John Hiebert will remain with the company as senior advisor. Niro, an architect, was appointed as vice president of business development in February 2011 as part of the company’s succession plan. The succession plan began in March 2010 with the acquisition of Task by the Fayolle Group. Deputy Minister Awards McElhanney Consulting Services Ltd. took the top award for specialized engineering services at the 8th annual Deputy Minister’s Consulting Engineers Awards, for its work on the Peace flood road repairs. The award for Design & Contract Preparation – Roads went to Urban Systems for their work on the Marine Drive/Lions Gate Transit Priority project. CWMM Consulting Engineers Ltd. was the winner of the Design & Contract Preparation – Structures award for their work on the Akokli Bridge Replacement project. R.F. Binnie won for its work on the John-Hart Highway 97, Bennett Creek to Link Creek project in the construction management and supervision services category. The awards recognize technical excellence in consulting engineer services that improve transportation infrastructure in B.C.
Record Broken The River, a luxury residential development, has broken real estate records in Calgary as the most expensive condo ever sold in the city. The 5,260 square foot unit sold for $8.3 million. It is not the most expensive residence in the development. Over $30 million in real estate has been spoken for, representing the first eight units which were sold in an exclusive preview. The development is worth more than $130 million. Slated to start construction in spring of 2012, The River is being developed by 26th Avenue River Investments Inc., an affiliate of Ledcor Properties Inc. New VRCA Chair Don Nishimura of Scott Construction Group is the new VRCA Chairman of the Board along with a new executive committee for 2012. Joining Nishimura on the executive committee are: Rick Wagner of Maxwell Floors Ltd, chair elect; and Clark Cambell of Smith Bros. and Wilson, vice chair treasurer. Graham McIntosh of the Guarantee Company of North America is the immediate past chair. CORRECTION: In CB Nov/Dec 2011 issue: The Jim Pattison Outpatient Care and Surgery Centre was a 50/50 joint venture between Bird Construction and Bouygues International.
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