OCTOBER 1, 2009: WIND DESIGN USING THE 2006 IBC/ASCE 7-05 PLUS PREVIEW OF 2009 IBC WIND PROVISIONS.

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Many structural engineers believe that they know how to determine wind forces.  However a 2008 trial design by SEI of structural engineers across the US showed otherwise.  In this trial, some engineers underestimated the wind shear by over 200% while others overestimated the shear by more than 150%. 

The SEAOC, SEAO and SEAW Wind Engineering Committees, in cooperation with NCSEA, have developed a much faster, simpler method for determining wind forces on typical buildings which has been published in the 2009 IBC.  Another trial design by SEI showed that this new method is more than twice as fast and produces more accurate results!

This seminar will begin by providing an overview on the provisions and recommendations for solutions to wind engineering design, especially as those provisions are encapsulated in the traditional method of “All-Heights”.  The heart of the seminar will discuss how wind flows around a building and how the flow of wind is taken into account by ASCE 7.  In doing this, the seminar will provide a comparison of the traditional method of “All-Heights” to the new “Alternate Method of All-Heights” in the 2009 IBC.   The last session of the seminar will present three detailed “real world” example problems which compare and contrast the existing and alternate design methods.

Presenter: Ed Huston, PE, SE 

Ed Huston is a 1971 civil engineering graduate of the University of Washington, Ed is a licensed civil and structural engineer in Washington, and is licensed in seven other western states.  He is a principal in the firm of Smith & Huston, Inc., Consulting Engineers in Seattle, Washington.  Ed has over 37 years of experience in structural design, evaluation, investigation and code and standards development.  He has been very active in the Structural Engineers Association of Washington, (SEAW) holding positions as Seattle Chapter President and State Association President.  He is currently chair of the Exam Committee, and coordinates the Northwest Conference Council.

Ed is Past President of the Board of Directors of NCSEA.  He is chair of the Code Advisory Committee – General Requirements Committee and serves on the Licensing committee.     

Ed has served on the board of directors and as President of the Applied Technology Council, (ATC) a national organization whose goal is the research into the effects of earthquakes and other natural forces and the dissemination of the results of that research. Ed was a member of the SAC Steel Project Joint Venture Management Committee; was on the Project Review Panel of ATC 43 - Evaluation of Earthquake Damaged Concrete and Masonry Wall Buildings; and was Lead Technical Consultant on ATC 45 - A Field Manual for Safety Evaluations of Buildings after Windstorms and Floods.  He also served on the Project Engineering Panel for the ATC Design Guide 2: Basic Wind Engineering of Low-Rise Buildings.

Ed is a co-author of the Wind Commentary to the Uniform Building Code - 1991 Edition & 1994 Editions, ATC-60, SEAW Commentary on Wind Code Provisions, as well as the SEAW RSM-03, SEAW’s Handbook of a Rapid Solution Methodology™ for Wind Design and The Masonry Designers' Guide to the ACI/ASCE 530 Code, First through Fifth Editions.  He has made over 60 seminar and technical presentations.