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RE: ASCE 7 - Building Shape and Wind Loading

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The ASCE 7 standard should be applicable. Kishor Mehta has an example of a U shaped building in his ‘Guide to the use of the wind load provisions of ASCE 7-02’. He recommends using the analytical ‘all heights’ method not the ‘modified low rise’ method. Although the U shaped building is broken up into pieces for the application of pressures, he notes that the overall dimensions have a greater influence on the MWFRS pressure coefficients than the dimensions of the individual pieces so the overall dimensions are used.


Christopher Banbury, PE


Ark Engineering, Incorporated

PO Box 10129, Brooksville, FL 34603-0129

22 North Broad ST, Brooksville, FL 34601

352.754.2424 (o)

352.754.2412 (f)



From: David Maynard [mailto:davemaynard(--nospam--at)]
Sent: Monday, June 20, 2005 1:34 PM
To: seaint(--nospam--at)
Subject: ASCE 7 - Building Shape and Wind Loading


I have an L-shaped 3-story building with a roof peak height of 30'-3 1/4".  It does have a couple of jogs here and there, but for the most part, it's an L-shape.  It's standard wood frame construction.  Is this a "Regular Shaped" building, thus fitting in either the Analytical or Simplified Procedure for wind analysis per ASCE 7, or do I have to find another method of wind load analysis?  If the latter's the case, can someone point me in the right direction???


Dave Maynard, PE

Gillette, Wyoming