Interpretation #7029

Published July 13, 2012

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Original Request

Code Version
2010
Code
BUILDING
Code Description
Building
Chapter
16
Section
1609.1.1
Topic

Question

Is it the intent of Section 1609.1.1 Determination of wind loads to utilize ultimate wind speeds or nominal?

Answer Published 07/13/2012 at 9:07 AM

Use the ultimate wind speed maps and then reduce the design
pressure to nominal as stated in 1609.1.2.3. Most of the
building materials have been tested to nominal pressures
not ultimate; that was the reason given previously.

Commentary

none.