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MassTimberBuildingSystems:CaseStudies
PresentedonNovember19th,2015byBernhardGafnerP.Eng.,MIStructE,C.Eng.,Dipl.Ing.FH/STV
Disclaimer: This presentation was developed by a third party and is not funded by WoodWorks or the Softwood Lumber Board.
Fast+Epp
�TheWoodProductsCouncil��isaRegisteredProviderwithTheAmericanInsQtuteofArchitectsConQnuingEducaQonSystems(AIA/CES),Provider#G516.
Credit(s)earnedoncompleQonofthiscoursewillbereportedtoAIACESforAIAmembers.CerQficatesofCompleQonforbothAIAmembersandnon-AIAmembersareavailableuponrequest.
ThiscourseisregisteredwithAIACESforconQnuingprofessionaleducaQon.Assuch,itdoesnotincludecontentthatmaybedeemedorconstruedtobeanapprovalorendorsementbytheAIAofanymaterialofconstrucQonoranymethodormannerofhandling,using,distribuQng,ordealinginanymaterialorproduct.__________________________________
QuesQonsrelatedtospecificmaterials,methods,andserviceswillbeaddressedattheconclusionofthispresentaQon.
CourseDescripQon
MassQmberconstrucQonuseslargeprefabricatedwoodmemberssuchascrosslaminatedQmberandglue-laminatedQmber.Theseproducts,combinedwithaheightenedawarenessofwood’scarbonbenefits,havefocuseda[enQononthepossibilityof“tallwood”andlargeareawoodbuildings.MassQmberbuildingsystemsandtechniqueshavebeensuccessfullyproveninprojectsworldwide.ThispresentaQonprovidesananalysisofthreerecentlybuiltmassQmberprojectsinCanada:a30,000-square-footcommercialbuilding;a10,500-square-foothospitaladdiQon;anda110,000-square-footofficebuilding—whichunderwentacostcomparisonwithsteelandconcretealternaQves.ThesoluQonsusedineachbuildingillustratetheadaptabilityofmassQmbertoavarietyofdesignconsideraQonsandconstraints.
1) ExplorethevarietyofavailablemassQmberproductsinNorthAmericaanddiscusshoweachiseffecQvelyuQlized.
2) ReviewthreecasestudiestoillustrateuniquemassQmberdesignconsideraQonsandsoluQons.
3) DiscussmassQmberdetailingtechniquesandbestpracQcestoprovideopQmalbuildingperformance.
4) Throughananalysisofthreerecentlycompletedprojects,considerthepossibiliQesandaestheQcappealofusingmassQmberframing.
LearningObjecQves
++
Vancouver – New York – Frankfurt – Edmonton – Seattle
A SHORT RECAP…
LIGHT WOOD FRAME POST + BEAM MASS TIMBER
Light Wood Frame
MASS TIMBER FLOORS (AND SHEAR WALLS)
MASS TIMBER WALLS AND FLOORS
LIGHT WOOD FRAME POST + BEAM MASS TIMBER
LOTS OF VARIATIONS AND HYBRIDS
ARE POSSIBLE
CLT
GLT
NLT
Nail Laminated Timber
GLT
Glue Laminated Timber
CLT
Cross Laminated Timber
MOSAIC CENTRE UHNBC LEARNING AND DEVELOPMENT CENTRE MOUNTAIN EQUIPMENT CO-OP (MEC) HEAD OFFICE
MOSAIC CENTRE UHNBC LEARNING AND DEVELOPMENT CENTRE MOUNTAIN EQUIPMENT CO-OP (MEC) HEAD OFFICE
30,000 SF COMMERCIAL BUILDING EDMONTON, AB
§ Inspired by Seattle’s Bullitt Center
§ Glulam post and beam with GLT floors
§ Integrated Project Delivery
§ Completed under budget and 2 months early
Mosaic Centre Edmonton, AB
180’
70’
16’
26’
themosaiccentre.ca
MOSAIC CENTRE UHNBC LEARNING AND DEVELOPMENT CENTRE MOUNTAIN EQUIPMENT CO-OP (MEC) HEAD OFFICE
10,500 SF HOSPITAL ADDITION PRINCE GEORGE, BC
§ Glulam post and beam with CLT walls and roof panels
§ Framing system takes advantage of CLT 2-way span capability
§ Small-scale project for owner to try heavy timber construction
UHNBC Learning & Development Centre Prince George, BC
EXISTING
EXIS
TIN
G
145’
80’
HIGH
LOW
EXISTING
EXIS
TIN
G
CLT WALLS CMU WALLS
GLULAM COLUMNS STEEL COLUMNS
10’ 17’
2.400
1.200
X
Z
Y
Isometric
MOSAIC CENTRE UHNBC LEARNING AND DEVELOPMENT CENTRE MOUNTAIN EQUIPMENT CO-OP (MEC) HEAD OFFICE
110,000 SF COMMERCIAL BUILDING VANCOUVER, BC
GLT |
§ Largest wood building in Vancouver since turn-of-the-century warehouse construction
§ Glulam post and beam with NLT floors
§ Structure helped respond to architectural considerations (planning, daylighting, ventilation, aesthetics)
§ High seismic zone: integration of a wood gravity system with a steel lateral system
Mountain Equipment Co-op Head Office Vancouver, BC
280’
60’
Services, Enclosed Offices Along Central Spines
Open Offices Along Perimeter (Maximize Natural Light)
Wind Towers (Air Intake)
Central Atrium (Exhaust)
20’ (typ)
NLT
CLT
Tender |
• 2x8 solid wood NLT panels • 2x10 panels at snow drift
zones and green roof
• 1� plywood plus 1-3/4� concrete topping (non-structural)
• One-hour fire rating (alternate solution based on char rate calculation)
Construction Schedule…
2.5%
§ Context is everything
§ Do your homework
§ A little flexibility goes a long way…
Successful mass timber projects
QUESTIONS?ThisconcludesTheAmericanInsQtuteofArchitectsConQnuingEducaQonSystemsCourse
BernhardGafnerFast+EppStructuralEngineers
bgafner@fastepp.com
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