Mark:
You have to design the header to take the wind load.
My guess is you’ll need a tube section or something with some weak axis flexural capacity and
Stiffness.
David L. Fisher
Senior Director
Cape Cod Grand Cayman Holdings Ltd. - Cayman
Fisher+Partners Structural Engineers Ltd. - Cayman
372 West Ontario
312.573.1701
312.573.1726 facsimile
312.622.0409 mobile
www.ccgch.com
www.fpse.com
From: Mark L. Puccio [mailto:mpuccio@mpsqrd.com]
Sent: Wednesday, May 23, 2007 4:14 PM
To:
Cc: solandt@mpsqrd.com
Subject: Wood header out of plane load
We have a 22’ long header across a store front which supports only the dead load from the infill wall above the header to the eave – a separate beam supports the roof load. The header frames into steel columns on either side.
My question concerns addressing the wind load on the store front and transferring it back to the steel through the header. Do most of you in practice design wood headers for biaxial bending? If so what about torsion? What is the best method of transferring the out of plane reaction into the column – some kind of Simpson tie?
Mark L. Puccio P.E.,S.E.