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Re: Quick/Easy Question for Seismic List
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- Subject: Re: Quick/Easy Question for Seismic List
- From: Shafat Qazi <seaint-ad(--nospam--at)seaint.org>
- Date: Wed, 22 Mar 2000 17:56:05 -0800
Michael:17.76 inches is wrong. Your answer of 1.48 inches appears to be correct, although little less than I am used to see. (0.166%)
The height used should be in feet not in inches. The formula uses feet. See then definition of the story height.
Hope that helps. Shafat At 03/22/00 05:08 PM, you wrote:
Is this some kind of a joke!!! What's the difference if it is in inches or feet. The formula is not empirical such that changing units will affect the value of the result. 1.48 ft is obviously equal to 17.76 inches. Alfonso S. Quilala Jr., P.E. In a message dated 3/22/00 12:47:54 PM Pacific Standard Time, mritter(--nospam--at)lgt.lg.com writes: << Colleagues, Please help me with a quick question. I am looking at some calcs prepared by another engineer, who calculated the allowable story drift for a three story building from BOCA and ran the number based on story height in inches. In other words, the building height is 74', but he used 888 inches. This gives the allowable story drift to be 0.02(888")=17.76". I've always used the story height in feet, which would give an allowable drift of about 1.48". I was going to show my colleage the code section which says story height is in feet, but could not find it in BOCA, UBC, SBC, Farzad Naiem, or any other text books. Does anybody have a reference section showing that the story height, by definition, should be in feet? I know it must be there, but I'm in a rush and can't find it. Thanks again for the help! Michael Ritter, PE >>
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