National Construction Code / BCA Compliance Report 2016 ARCT 4430
REPORT SECTION A – GENERAL PROVISIONS A3, A3.3 Classification of Buildings and Structures SECTION B – STRUCTURAL PROVISIONS B1.4 Determination of Structural Resistance of Materials and Forms of Construction SECTION C – FIRE RESISTANCE C1, C1.1, C1.2, C1.3, C1.4 Fire Resistance and Stability SECTION D – ACCESS AND EGRESS D1, D1.2, D1.3, D1.4, D1.5, D1.6, D1.7, D1.9, D1.13 Provision for Escape D2, D2.2, D2.8, D2.9, D2.11, D2.11, D2.13, D2.14, D2.17 Construction of Exits SECTION E – SERVICES AND EQUIPMENT E3 Lift Installations E4 Emergency Lighting, Exit Signs SECTION F – HEALTH AND AMENITY F2, F2.2, F2.3, F2.4 Sanitary and other Facilities F3 Room Sizes SECTION G – IF RELEVANT TO YOUR BUILDING G3 Atrium Construction SECTION H – SPECIAL USE BUILDINGS – IF RELEVANT TO YOUR BUILDING H1 Theatres, Stages and Public Halls
DRAWINGS ‐A required stair as the entire pathway to Open Space in plan+section 1:50 ‐Floor plans to scale on A3, showing classifications/exit distances/exits
Building Code of Australia Description For the purposes of the Building Code of Australia / National Construction Code, the proposed development may be described as follows:
Building Classifications A3.2 Building level
Classification
Use
Ground
Class 6a, Class 6d & Class 9b
First Second Third Fourth
Class 9b Class 9b Class 9b Class 9b
Class 6a café Class 6b Ticketing office, books shop and Class 9b Library, Entry hall gallery space and Sheltered cultural space. Gallery Space and Office space making up less than 10% of floor Gallery Space and Office mezzanine making up less than 10% of floor Gallery Space Gallery Space
Effective Height A1.1 The building has an effective height of 19.85m
Clause B1.4
Description Determination of structural resistance of materials and forms of construction
Comments The building will be constructed from a variety of differing materials including glass, steel, wood and concrete. The following industry standards must therefore apply. Concrete construction : AS 3600 Steel Structure: AS 4100 Composite Steel and Concrete: AS 2327.1 Timber Construction: AS 1684, AS 1720.1 Not subject to Termite attack as Finnish softwood will be preservative treated in accordance with Appendix D of AS 3660/1. In Accordance with B1.4 I, II all information relating to the termite management must However be installed on a durable notice and fixed in a prominent location within the building this wil be done on In the Ground floor control meter box and control panel. Piling Foundation: AS 2159 Glazed Assemblies: AS 2047 for External Wall glazing AS 1288 for Internal glazing It should be noted that in accordance with section B this building is a classified as a level three structure. And is therefore required to be engineered for 1in1000 year events. Located in Helsinki it is not subject to cyclones however with a port location it receives high winds. Snow loading is a risk particularly in winter and Earthquakes and seismic events are rare in this region. All structural requirement therefore need to be engineered to comply with these scenarios.
Section C Fire Resistance C1 Fire Resistance ad Stability Clause C1.1
C1.2
C1.3
C1.4
Description Type of construction required Calculation of Rise in Storeys Buildings of Multiple Classification Mixed Types of Construction
Comments Class 9b, 4 or more stories, Type A construction required, Class 6a and 6b elements of building operating on single floor are Type C Total rise in storeys across whole building is 4 storeys. Third floor gallery rectangular despite being a mezzanine is not counted as an additional storey as it occupies less than 1/3 of the total floor area of floor 3 as outlined in C1.2D ii As per C1.3 type of construction required is Type A, section C1.3 b does not apply to any part of building
In accordance to C2.7 mixed type of construction in this building will be used throughout to allow for both Type C and Type A construction within the same building. notably the Ticketing office, Book shop and Café shop will be separated into a fire compartment by a fire wall which extends over the ceiling as outlined in C2.7 cii
Section D Access and Egress D1 Provision for Escape
Clause D1.2
Description Number of exits required
Comments As per D1.2 d vi not less than 2 exits from each effective storey must be provided due to each effective storey easily being able to accommodate more than 50 people outlined in the table for D1.13
Compliance
D1.3
D1.4
When fire‐isolated As per D1.3 all Stairways and ramps must be fire isolated. The egress routes on the left side of the building although only pass through one or two stories each, combined, link all floor together so it is recommended stairways and in this case for D1.3 that all passageways except the central main ramps are fire isolated. ramps are required Building Classification Use Exit travel level distances
Ground First
Second
Third
D1.5
Distance between alternative exits
D1.6
Dimensions of exits and paths of travel to exits
D1.7
D1.8
D1.9
D1.10
Fourth
Class 6a, Class 6d All distances are complaint given the openable nature of these & Class 9b external glazed walls on the ground level Class 9b All distances within this floor are compliant. Although given the simple proposal of office space and WC locations it is important that during the further design stages the portioning of these rooms does not interfere with the compliancy of the egress distance. Class 9b All exit distances within this floor are complaint apart from the 41.51m egress path which slightly falls outside of the acceptable range an addition of a balustrade 1.5 metres offset from the edge of this void space would be beneficial as it would allow for this floor to become fully compliant as well as increasing safety. Class 9b Open air roof space does not comply. Currently maximum distance of travel is 97m it is recommended that an additional fire isolated stairway is placed in the building to allow egress within the complaint maximum 40m distance where two options exist. Egress from the rounded central gallery space also is non‐ compliant at maximum distances. 36.59m to the rectangular gallery on the left side of the space complies however the additional allowed 20m outlined in F iii is exceeded. It is recommended therefore that the space is slightly shrunk or the wall trimmed. To become compliant. Additionally the space should be smoke separated therefore suggested dropping doors and room pressurisation for this gallery as well as an FRL of 60/60/60 would be required. Class 9b 40m with option of two exits compliant
All distances between alternative egress means are within the 60m range on all floors. On the ground floor though it should be noted that as per D1.5b exits should not be within 9m of each other and therefore the wall of door should be marked with exits signs every 9m declaring ‘official’ egress points. D1.6a all exit dimensions are height compliant Floor and Program People as per D1.13 Required Width D1.6 Actual Width D1.6D D Ground Floor 1134 DII 14m ‐ First Floor 255 DI 2.91m 8m Second Floor 708 Di 6.233 8 Third Floor 1100 Di 9.5m 8m
Fourth Floor 623 Di 5.52m 8m As calculated all floors except for the Third are compliant with the required unobstructed exit dimension. As identified earlier however it is recommended that an additional fire isolated stair be installed on the third floor roof space. This would further bring the aggregate width dimension up to spec. Travel via fire‐ As per D1.7 all required exits and all fire isolated exits and ramps provide their own independent egress into isolated exits other fire isolated spaces or further into open air. As per D1.7c however all exits exit within 6m of an external wall within the building therefore the external walls are to have a minimum FRL rating of 60/60/60 as well as complying with all methods outlined in C3.4 meaning the external glazing of the building will require automatic closing fire shutters as per C3.4 B External stairs and No external stairways are used in this building ramps in lieu of fire‐isolated exits Travel by non‐fire‐ As per D1.9 the central ramp running throughout the building can further be used as a method of travel by isolated stairways non‐fire isolated means. The maximum distance for travel in this case is 80m as per D1.9d however the and ramps building has been designed to where are not necessarily needed in fire egress situations. Discharge from All exit points comply with D1.10 all exits exit as far as practical from the building and there is no traffic on exits the site or its immediate vicinity. All roads and surrounding areas are further on the same level as the proposed building.
Complies Complies, further consideration need however Does not comply see solution Does not comply see solution Complies
Complies Complies Complies Does not comply solution required Complies
Complies further detail required drawings
N/A
Complies
Complies
D1.13
Number of persons accommodated
Section D Access and Egress D2 Construction of Exits D2.2 Fire isolated stairways and ramps
D2.4 D2.5
D2.7
D2.8
D2.9
D2.10
D2.11
D2.12
Floor and Program Ground Floor Class 9b Hall Entry Hall Library Reading space Storage space Class 6b Bookshop Ticketing office Class 6a Café First Floor Class 9b Gallery Space Office Space Plant rooms Second Floor Class 9b Gallery Space Service space Offices Hall Third Floor Class 9b Gallery Space Service Space Hall Fourth Floor Class 9b Gallery Space Hall Total
2
2
D1.13 m Per person 4 Gallery Space 4 Gallery Space 2 Reading space 30 Storage space 3 Shop open air 1 Kiosk 1 Café
Area m 547 1247m 400 409 391 203 141
Approximate accommodation 136 311 200 13 130 203 141
4 Gallery Space 10 Office 30 Plant rooms 4 Gallery Space 30 Plant rooms 5 Office space 4 Gallery space 4 Gallery Space 30 Plant rooms 30 Gallery space 4 Gallery Space 4 Gallery Space
876 205 509 1460 444 414 989
219 20 16 365 14 82 247
3558 1246 685 1888 605 10,729
889 41 171 472 151 3897
All fire isolated stairways ramps and landings are to be constructed from a mixture of concrete and composite concrete and steel which are non‐combustible as outlined in D2.2a. All exits are to be further mounted the external exo skeleton of the building which will further insure they are not compromised if structural failure was to occur in other parts of the building N/A No basement level exists in building Open access No open access ramps or balconies are used in this building all intermediate spaces are sealed with glazing ramps and for thermal efficiency. Furthermore in a fire situation the open base of the ramp will deploy a fire curtain balconies thus further sealing the floor from other floors preventing smoke transfer. No services are installed in fire isolated corridors bar pressurisation systems, emergency lighting, and Installations in exits and paths of intercommunication systems which comply under D2.7e travel Enclosure of space All spaces below Fire isolated stairways and ramps themselves are fire isolated or have an FRL greater than under stairs and 60/60/60. These spaces are purely a part of the façade of the building. ramps Width of required All ramps and stair operate on a 2m or 3 metre width or 4m, in the case of the 3metre and 4 metre ramps stairs and ramps thin hand rails divide them evenly to provide safety and to ensure compliance for required stair width outlined in D1.6 Pedestrian ramps All fire isolated ramps comply with the height and width requirements of the fire isolated stairways. The central ramp further does not have a gradient steeped than 1:8 and as per D2.10 complies. The fire isolated ramp to the right of the building further is not intended to function as an accessible ramp and also does not have a gradient steeper than 1:8. All ramps must also a slip resistance of P4 in the dry and P5 in the wet. Wet conditions are possible when sprinkler engage. Fire‐isolated All fire isolated passageways will have a FRL of 60/60/60 on all walls ceilings and floors. As all path ways passageways embed throughout the building and its structure. Roof as open Roof top spaces comply with D2.12 there are no roof lights within proximity of the path of travel. space Additionally roof top construction complies with an FRL rating of 120/120/10
Complies
N/a Complies
Complies
Complies
Complies
Complies, needs further detail in drawing Complies
Complies
D2.19‐21
Doorways and doors
Complies D2.19 does not apply to this building All doors comply with D2.20 As per D2.21 all doors within the building must comply with section C removing the requirements outlined in section A, Doors therefore comply as all doors within the building are push escape bars fitted opening in the direction of egress.
Section E Services and Equipment E3 Lift Installations Clause Description Comments E3.2 Stretcher facility in In accordance with E3.2 ii a stretcher facility accommodating a raised stretcher and patient of dimensions lifts 600 x 2000x 1400 will be installed in the passenger lifts fitted throughout the building as they are operating at an effective height of over 12m. E3.4 Emergency lifts Effective height of the building does not exceed 25m and the class of the building is not 9a (25m) E3.6a+b Passenger lifts In accordance with E3.6a no limitations occur on the installed electric passenger lifts throughout the building. However as per 3.6b the installed lift must comply with rows; 1, 2, 5‐11. Section E Services and Equipment E4 Emergency Lighting, Exit Signs and Warning Systems Clause Description Comments E4.2 Emergency All fire isolated passages are required and are fitted with emergency lighting as well as all rooms over 300m2 lighting as per section b iii. The central ramps throughout the building further require emergency lighting as per requirements. section d. and section f outlines that every room in the class 9b segments with an area over 300m2 and where the distance is more than 20m to a point of egress require emergency lighting as well. All galleries within the building therefore require emergency lighting and almost all point in the building require and are installed with adequate lighting. E4.5 Exit signs. Exit signs are required above or next to required exit ramps, doors and paths throughout the building as per Where? sections a and b. they are not currently drawn nor visible at this larger scale however will comply with E4.5 Section F Health and Amenity F2 Sanitary and Other Facilities Clause Description F2.4 Accessible sanitary facilities – how many/where?
Comments As per table 2.4(a) in a class 9 building F2.3 outlines requirements for number of sanitary facilities, as per section D the public may share the total bathrooms per floor. Further as per 2.4 each storey is required to have at least 1 accessible unisex toilet which will account for both a male and female room. Although not currently drawn there is room to fit them , however they do no currently comply. Floor and Program Occupancy per floor Closet Pans Urinals required Wash basins as per D1.13 required required Ground Floor 2 4 2 Class 9b Gallery 660 –M330 6 3 F330 333 –M166.5 Class 6b F166.5 141 –M70.5 Class 6a F70.5 First Floor Class 9b Gallery 255 –M127.5 1 2 1 F127.5 2 1 Second Floor 4 3 2 708 –M354 Class 9b Gallery 3 6 F354 Third Floor 6 3 3 Class 9b Gallery 1108 –M554 4 10 F554 Fourth Floor 4 3 2 Class 9b Gallery 623 –M311.5 3 6 F311.5 Comments Given the super scale nature of the building all rooms within the building easily conform to the minimum room height rules outlined in section d ii and iii lowest point in building is 2.4m fire isolated exits
Complies
N/a Complies
Complies, requires further details in drawings however
Complies requires further detail in drawing
Does not comply, bathrooms need to be drawn in.
Clause F3.1
Description Height of rooms and other spaces
Complies
Section G Ancillary Provisions G3 Atrium Construction Clause Description G3
Section H Special Use Buildings H1 Theatres, Stages and Public Halls Clause Description H1.2‐ H1.7
Comments G3 does not apply, no area within the building connects more than 3 storeys and any roof voids extending above the galleries will be fully sprinklered to assist in firefighting. The central round gallery further will sealed and sprinklered in the design to ensure safety although technically being a stair well space.
Complies, however a fire engineered solution is recommended as described
Comments H1.2b does not apply as there is no stage with in the building. As mentioned the building is to be fully sprinklered and the sprinklers are to comply with Specification E1.5 H1.3 need not apply H1.4 need not apply H1.5 need not apply H1.6 need not apply H1.7 need not apply
N/a