Forest Education Center at Peavy Arboretum

FOREST EDUCATION CENTER at Peavy Arboretum Client: OSU College of Forestry Location: Corvallis, Oregon in the McDonald-Dunn Research Forest Timestamp: Spring, 2021

Paul Nicolas Turner

Bachelor of Architecture 2021

University of Oregon ARCH 485/6 Professor Judith Sheine

“OUR GOAL IS TO LINK INNOVATIVE [MASS PRODUCTS WITH FOREST SUSTAINABILITY”

TIMBER]

The McDonald-Dunn Research Forest is owned by Oregon State University. The 6,500 acre forest was originally home to the Kalapuya tribe. Several hiking trails offer exploration through the timbered landscape. The natural tranquility is great for “forest bathing” -- to clear one’s mind and invigorate the body. The publicly accessible site get roughly 155,000 use visits per year. From horseback rides to picnics, This forest welcomes many activities. The existing building, Peavy Lodge pictured on the left, has become aged and dilapidated; OSU is ready to sprout new life into the College of Forestry.

In the architecture industry, the PNW is a leading the United States in the adoption of mass timber structures. Oregon is fortunate to grow an abundance of douglas fir trees, which is among the most

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desirable structural timber in the world. With the recent advancement in manufacturing technology, we can create large scale engineered wood products. The Forest Education Center at Peavy Arboretum aims to be a holistic, high-performing showcase of mass timber. It shall be flexible

FINAL PROJECT OVERVIEW..................2 PLANS................................................5 INTERIOR / COMFORT..........................7 CROSS SECTION.................................9 DETAILS.............................................10 STRUCTURE / ENCLOSURE..................11 CODE / CARBON ANALYSIS..................13 APPENDIX: OUTDOOR CLASSROOM.......................15 PROCESS WORK..................................17

place where faculty, students, and visitors can discover, explore, and connect with nature. Beyond typical educational use, the project will offer exciting new opportunities to host field trips, conferences, weddings, ceremonies, etc.

“Our goal is to link innovative products with forest sustainability”

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BIOMASS BOILER In this setting we had a special opportunity to use a biomass boiler. This boiler could take advantage of biomass collected from the forest floors. Although this setup would not work in most projects, the site offers this unique circumstance.

1. Event 2. Exhibit 3. Cafe 4. Kitchen 5. Workshop 6. Resource Center 7. Biomass Feeder & Chiller 8. Classrooms 9. Offices 10. Dry Creek Drainage Swale

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mechanical equipment

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DOAS ventilation ducts

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COMFORT & ACOUSTICS

13' - 6"

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The Forest Education Center primary source of heating and cooling is done through hydronic concrete slabs. While the use of concrete was

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to dampen noise between levels. Cork finishes along the level 2 walkways will help dampen noise in the atrium space. The three classrooms have two

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With a lot of planar surfaces in use, we must address the issue of acoustics. Between the CLT floors and concrete top layers, there is an acoustic mat

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13' - 6"

were implemented where needed.

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structural, comfort, and durability qualities. Dedicated outside air systems provide fresh ventilation. For more controlled local comfort, Big Ass Fans

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consciously limited, the hydronic slab offers a lot of upside. Hot or cold water flowing through concrete mass is an effective strategy that serves

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walls that retract (image above). This created a unique acoustic challenge with the trusses being open, so a wood slat element with acoustic mat was added on the trusses that divide the classrooms. This will allow for improved acoustics when the classrooms are divided.

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SUN CONDITIONS

USES & BIOPHILIC DESIGN The event space is a flexible space shaped with dramatic mass timber structure. A moveable seating element / planter can help fill the space.

Upon events, the planter may be moved to allow more open space.

Beyond typical educational use, events may include as K-12 visits, community events, tourism, weddings, ceremonies, etc.

Summer Solstice June 20th, 12pm

Bringing nature into a building, plants / wood / daylight / views, has been proven to improve productivity, and lends to a delightful experience. All of this benefits come with a much smaller carbon footprint compared to concrete or steel.

Winter Solstice December 21, 12pm

DAYLIGHTING Our site is densely populated with trees that limit access to daylight.Our daylighting consultant suggested top lighting would be our best opportunity to naturally light spaces. This lead to the strip of skylight that run at the peak of the gable building form. Smaller skylights were implemented in the classroom wing as well.

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standing seam metal roof HSS skylight beams metal flashing with self adhered membrane metal flashing (lapped) standing seam metal roof hat channel (vented air gap) mat board

hat channel (vented air gap) mat board metal flashing (lapped) cricketed gutter (drain to gable ends) rockwool insulation WRB HST fitting (screwed to CLT soffit) roof drain HST facade support (gravity loads) wood slat facade screens

steel knife plate (within angled column)

HST truss bracing HST roof bracing (roof diaphragm) [MASS TIMBER] 5 ply cross laminated timber glulam beam mass plywood panels

PASSIVE STRATEGIES Operable windows in tandem with operable clerestory windows in the atrium space may allow for stack ventilation (blue arrows in cross section). The fan in the event space will help improve stack ventilation, as well as offering more controlled comfort. The hydronic concrete slabs offer opportunities for night flush cooling during Summer evenings.

window flashing corrugated steel panels vented air gap vertical girt (standoff from MPP) rockwool insulation WRB hat channel steel panel light shelf (weld to tapered T section) (facade standoff, lateral loads) HSS facade screen support (L angles welded) concrete stem wall (revealed beyond)

3” metal grate (raised path) HST fitting (bolted to point footing) drain pipe (to dry creek swale)

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[MASS TIMBER] 5.5” MPP exterior Walls Glulam Beams & Columns 5 Ply CLT Floor & Roof

STEEL Corrugated Cladding Light Shelves (facade lateral system) Hollow tube (facade gravity system)

WOOD FACADE 1X4 Dark Stain Slats

STEEL GRATE PATH Raised 6” (water management below) Reduce Shoe Debris

conduit & sprinkler lines CLT floor panels (long span perpendicular to beams ventilation ducts wood slat soffit (mech. & acoustics integrated) hydronic concrete slab (heating & cooling)

MPP exterior walls (stick frame between) WRB rockwool insulation (facade support within) corrugated steel panels (spandrel panels between windows) facade standoff structure wood slat facade screen

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CODE ANALYSIS

flush on wide side

32” min.

60” min. dia.clearance

42” min. handrail

Carbon Summary Results Volume of wood products used (m³): 637 m³ (22509 ft³) of lumber and sheathing

Project:

Forest Education Center at Peavy Arboretum

Date:

June 9, 2021

U.S. and Canadians forests grow this much wood in: 2 minutes

Results from this tool are based on wood volumes only and are

Carbon stored in the wood:

estimates of carbon stored within wood products and avoided

604 metric tons of CO2

emissions resulting from the substitution of wood products for non-

Avoided greenhouse gas emissions: 234 metric tons of CO2

wood products. The results do not indicate a carbon footprint or global warming potential and are not intended to replace a detailed life cycle assessment (LCA) study. Please refer to the References &

Total potential carbon benefit:

Notes (PDF) for assumptions and other information related to the

838 metric tons of CO2

calculations.

Equivalent to: 177 cars off the road for a year

Energy to operate 88 homes for a year

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OUTDOOR CLASSROOM

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PROCESS WORK

CLT Pavilion

Early Site Plan

Outdoor Classroom, first iteration

Winter Mid-term Pinup Board

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Winter Final Pinup Board

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THANK YOU.