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AspenArtMuseumDesignandConstruc4onoftheWoodRoofStructure
GregKingsley,PE,Peng,PhDPresidentandCEOKL&AInc.,StructuralEngineersandBuilders
Disclaimer: This presentation was developed by a third party and is not funded by WoodWorks or the Softwood Lumber Board.
“The Wood Products Council” is a Registered Provider with The American Ins<tute of Architects Con<nuing Educa<on Systems (AIA/CES), Provider #G516.
Credit(s)earnedoncompleDonofthiscoursewillbereportedtoAIACESforAIAmembers.CerDficatesofCompleDonforbothAIAmembersandnon-AIAmembersareavailableuponrequest.
ThiscourseisregisteredwithAIACESforconDnuingprofessionaleducaDon.Assuch,itdoesnotincludecontentthatmaybedeemedorconstruedtobeanapprovalorendorsementbytheAIAofanymaterialofconstrucDonoranymethodormannerofhandling,using,distribuDng,ordealinginanymaterialorproduct.
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QuesDonsrelatedtospecificmaterials,methods,andserviceswillbeaddressedattheconclusionofthispresentaDon.
Course Descrip<on
TheAspenArtMuseum,designedbyarchitectShigeruBan,includesalong-spanthree-dimensionalwoodspace-frameroof.
Ban’schargewastocreateawoodspaceframewithspansofmorethan50feetandcanDleversof14feet,inastructuraldepthof3feet.ThespaceframewastohavetwoplanesofintersecDngdiagonalwebsofcurvedmembersthatundulatedupanddowntotouchtheplanesofthetopandboUomchordswithnovisibleconnectors.
ThiscasestudypresentaDonwilldescribethedesignandconstrucDonofthewoodstructure,includingpathsexploredbutnotchosenforthefinaldesign.
Learning Objec<ves
1. ArDculatetheparDculardemandsassociatedwithcreaDnga3-dimensionalspaceframeenDrelyinwood.
2. RecognizetheadvantagesanddisadvantagesofseveralwoodconnecDonstrategiesinspace-framestructures.
3. BeawareofmanufacturingcapabiliDesandlimitaDonsthatinfluencedthedesignoftheAspenArtMuseumroofstructure.
4. UnderstandtheimportanceofearlyengagementofmanufacturingandengineeringpartnersinthedesignprocessforinnovaDvewoodstructures.
OUTLINE
• THE BUILDING CONCEPT
• THE ARCHITECT’S CONCEPT FOR THE ROOF
• 4 STRUCTURAL CONCEPTS FOR THE ROOF
• FABRICATION TESTS: MOCK UPS
• STRENGTH TESTS: MATERIAL TESTING
• FINAL FABRICATION
• ERECTION
• FINISHED BUILDING
BIRCH PLYWOOD WEB AFTER GLUING with PURBOND HB E452 single-component polyurethane adhesive
Test Coupons
WHAT WE LEARNED Objective 1
Design challenge centers on the nodes and connections.
“Structures are connections held together by members.” - Hardy Cross
Wood is orthotropic. With engineered wood products, you can orient the wood fibers to your advantage.
WHAT WE LEARNED Objective 1
Curved space frame members are beautiful, and yet at odds with their structural function.
WHAT WE LEARNED Objective 1
Knife plates and bolts are expensive and do not always take the best advantage of the wood properties
WHAT WE LEARNED Objective 2
Preparation of precision virtual models for CNC fabrication is essential.
WHAT WE LEARNED Objective 3
Ques<ons? ThisconcludesTheAmericanInsDtuteofArchitectsConDnuingEducaDonSystemsCourse
GregKingsleyKL&AInc.,StructuralEngineersandBuilders