innovations in cross laminated timber
DESCRIPTION
The Earth Science Building showcases great innovative uses of CLT from the flying staircase to the building's canopy. Learn about mass timber innovation and the benefits of wood in this presentation from the first ever US CLT Symposium.TRANSCRIPT
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?