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WHM Structural Engineers
Brian Maver, P.Eng., LEED AP, Principal
• Who is WHMWho is WHM
• A unique system that we are studyingA unique system that we are studying• GoalGoal• TheoryTheory• Various Connection SolutionsVarious Connection Solutions• Concrete ToppingConcrete Topping• TestingTesting
• Other Innovative IdeasOther Innovative Ideas
• QuestionsQuestions
INTRODUCTION
WHO IS WHM?• Structural Engineering Structural Engineering
FirmFirm• We are in our 10We are in our 10thth year of year of
practice.practice.• Projects:Projects:
• Luxury HomesLuxury Homes• Wood-frame Townhomes and Wood-frame Townhomes and
Condos Condos • Mixed-use HighrisesMixed-use Highrises• Institutional projectsInstitutional projects
• Community CentresCommunity Centres• HealthcareHealthcare• EducationEducation
• Innovative SystemsInnovative Systems• HelixHelix• Composite Mass Timber FloorsComposite Mass Timber Floors• Wood-frame HighrisesWood-frame Highrises• Mass timber connectionsMass timber connections
UNIQUE SYSTEM REQUEST
• New floor systemNew floor system
• Goals:Goals:• Composite system with timber Composite system with timber
and concrete toppingand concrete topping• Topping to be part of the Topping to be part of the
structural systemstructural system• Easily installedEasily installed• Cost effectiveCost effective• Superb structural performanceSuperb structural performance• Lean towards sustainabilityLean towards sustainability
THEORY• Floors and beams in Floors and beams in
bendingbending• Top is in compressionTop is in compression• Bottom is in tensionBottom is in tension• Concrete good in Concrete good in
compressioncompression• Use Helix mix for crack control Use Helix mix for crack control
and flexureand flexure
• Timber is good in tensionTimber is good in tension
CONNECTIONS
• NailsNails• Poor performancePoor performance• Too much withdrawalToo much withdrawal
• Screws Screws • Labour intensiveLabour intensive• Screws need to be angled Screws need to be angled
appropriatelyappropriately
• HBV ConnectorHBV Connector• Labour intensiveLabour intensive• Epoxy injectedEpoxy injected• ExpensiveExpensive
• WHAT ELSE CAN BE USED??WHAT ELSE CAN BE USED??
CONNECTIONS
• Truss PlatesTruss Plates• Cost effectiveCost effective• Easy to installEasy to install• Panels can be shipped to sitePanels can be shipped to site
TESTING
• FPInnovationsFPInnovations• Full scale testFull scale test• Stiffness, vibration, strengthStiffness, vibration, strength
• UBCUBC• Stiffness, vibration, strengthStiffness, vibration, strength• Compare results to other tested Compare results to other tested
systemssystems
Other Innovative IdeasOther Innovative Ideas HelixHelix
Mass timber connectionsMass timber connections
Wood-frame highriseWood-frame highrise
Any questions?Any questions?
Thank-you!Thank-you!• Brian Maver, P.Eng., LEED APBrian Maver, P.Eng., LEED AP
CLOSING