Innovation with CLTTHE EARTH SCIENCES BUILDING

Presentation Outline• CLT + Panelized Wood• Why Wood?• The Earth Sciences Building• Lessons

CLT + PANELIZED WOOD

POST AND BEAMCenturies old

STICK FRAMELast Century

SOLID CONSTRUCTIONLast 15 years

Structural Timber Systems

Edge Laminated

Glued Doweled Nailed

Cross Laminated

Glued Doweled Nailed

CLT

LVL

LSL

Solid Wood Panels

Canada Line Stations Vancouver, BC2010 Schreyer Award

Samuel Brighouse Elementary School Richmond, BC2012 Lieutenant Governor Award – 2012 Wood Design Award

VanDusen Botanical Garden Visitor Centre Vancouver, BC2012 Lieutenant Governor Award – 2012 Wood Design Award

WHY WOOD?

Climate Change / Climate Crisis

Storms Threaten Ozone Layer Over U.S., Study SaysWarming Turns Tundra to ForestClimate Change to Alter Global Fire RiskHumans are Primary Cause of Global Ocean Warming over Past 50 Years, Research ShowsHot Summers Increasing in the U.S.

Nearly One Tenth of Hemisphere's Mammals Unlikely to Outrun Climate ChangeClimate Change May Create Price Volatility in the Corn MarketHuman-caused Climate Change a Major Factor in More Frequent Mediterranean DroughtsSOURCE: ARCHITECTURE 2030

Buildings are the #1 Contributor to CO2

• Grown by the SUN

• Sequesters CARBON

• Low EMBODIED ENERGY

• REGIONAL material that supports the ECONOMY

• Reduced ECOLOGICAL and ECONOMIC impact

• SUSTAINABLY harvested renewable resource

Earth Sciences BuildingUniversity of British Columbia

Slide 14

RM5 Make transparent or a halftone. Maybe use a CIRS image.Richter, Max, 6/11/2012

• Create museum precinct

• Highlight research on display

Support Public Realm

• Maintain E/W and N/S connections• Emphasize exposure of program

Campus Connections

• Full-height glazing• Canopy-to-ceiling extension

Connections to the Outdoors

• Visibility of departments• Vertical circulation

Promote Collaboration

• The two structural materials are wood and concrete:

• Glulam for heavy structural members in north wing

• LSL and CLT for structural decking• Steel beams for long spans and seismic

• Concrete in south wing

Structural Materials in ESB:

NORTH WINGTIMBER

SOUTH WINGCONCRETE

• Composite wood-concrete floor structure• Glulam post and beam connections

• Transfer trusses over column free spaces

• Chevron Ductile Braces

• CLT Canopy and Roof• Cantilevered glulam stair

Structural Innovations in ESB:

Composite Wood‐Concrete Floor Structure 

Glulam Post and Beam Connections

CLT Canopy and Roof

Full Storey Transfer Trusses over Lecture Theatres

LECTURE THEATRE

eqcanada.com

Ductile Chevron Braces

Cantilevered Flying Staircase

LARGE WOOD AIRPORT

Title of Project—City, Province

Client

LESSONS

• Update and improve specifications

• Consider cash allowance for additional protection

• Review schedule to align wood construction in dry season

• Limit exposure during construction

Weather Protection

• Consideration of alternative routes for mech / elect• Commitment from contractor and consultants is critical

Ceiling Heights + Exposed Services

• Mechanical and electrical service runs

Dropped Beams

• Not all wood substrates are equal• Perform test patch or sample for review

Finishes

• Lighting• Sprinklers

Service Runs

• Vibration

• Acoustics

• Loading

• Seismic

• Passive design

Performance

CarbonESB:6169 Tonnes embodied energy in total construction1094 Tonnes CO2 stored in the wood5075 Tonnes Net (negative)

Comparison project :1076 Tonnes embodied energy in total construction904 Tonnes CO2 stored in the wood172 Tonnes Net (negative)

• Requires proper planning• Prefabrication can have significant positive impact• Consider product availability• Spend time planning ahead

Schedule

Cost

Public Perception

(+) • Comfortable• Warm• Organic material• Beautiful

(-)• Less durable• Combustible• Increased risk• High cost• High maintenance

QUESTIONS?