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Seismic Response Spectrum[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: <seaint(--nospam--at)seaint.org>
- Subject: Seismic Response Spectrum
- From: "Rich Lewis" <seaint03(--nospam--at)lewisengineering.com>
- Date: Tue, 23 May 2006 09:50:52 -0500
I was given seismic design criteria for an overseas project that is not typical of what is used in the IBC code. The design criteria given to me is:
Peak Horizontal Ground Acceleration:
0.17(g) - 10% over 10 years.
0.28(g) - 10% over 100 years.
I was wondering how this information can be utilized in an equivalent static force analysis. IBC uses an acceleration response spectrum having a 2 percent probability of exceedance within a 50 year period. Seems to me I’m mixing apples and oranges with this criterion. My seismic texts don’t show a method for taking raw data like this and translating it into an equivalent static force system. Is it possible?
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