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WEBINAR – Calculation of Wood-Frame Diaphragm Deflection per the 2008 Special Design Provisions for Wind and Seismic

April 24, 2013 – 10:00 am - 11:00 am




Join at 10 am Pacific, 11 am Mountain, 12 pm Central, 1 pm Eastern

Calculation of wood-frame diaphragm deflection should account for bending and shear deflections, fastener deformation, chord splice slip, and other contributing sources of deflections. The American Wood Council’s 2008 Special Design Provisions for Wind and Seismic (SDPWS) incorporates both a 3-term and 4-term deflection equation that accounts for these variables. This webinar will provide an overview and comparison of the 3-term and 4-term deflection equations. Additionally, an example showing calculation of mid-span deflection of a blocked wood structural panel diaphragm will be presented.

Speaker Bio

Ms. Kam-Biron is a California licensed structural engineer and Director of Education for the American Wood Council (AWC). Before joining AWC, she was Senior Technical Director – National Lead Mid-rise/Multi-family Construction for WoodWorks. She has over 20 years of experience managing and designing a wide range of projects in various structural materials as well as Division of State Architect contract plan review. Ms. Kam-Biron is a graduate of Cal Poly, San Luis Obispo with a BS in Architectural Engineering. She is an active member and past Director of the Structural Engineers Association of Southern California and a volunteer on the Cal Poly State University, San Luis Obispo Architectural Engineering Advisory Board.

Registration is free but space is limited to click on the link below to reserve your space.

Click here to register.


Click here to download a PDF of the presentation slides.

WoodWorks is an approved AIA provider. Eligible attendees will qualify for 1 credit (HSW).

Engineers and non-member architects will receive a certificate of completion for 1 PDH credit.

Certificates will be emailed to participants within two weeks of the webinar.


If you are attending the webinar as a group, each person in your group requiring a certificate of attendance must sign the Group Sign-in form.

  • Download and print ONE sign-in sheet for your group.
  • Return the completed sign-in form by email within 72 hours to .
  • WoodWorks will send each attendee a certificate of completion within 2 weeks.

PC-based attendees

Required: Windows® 7, Vista, XP or 2003 Server

Macintosh®-based attendees

Required: Mac OS® X 10.5 or newer

Mobile attendees

Required: iPhone®/iPad®/Android™ smartphone or tablet


24 April 2013
10:00 am - 11:00 am
Event Category:

WoodWorks offers a wide range of in-person and online training opportunities, from Wood Design Symposiums that include concurrent seminars and a trade show, to half-day workshops, lunchtime seminars and webinars.