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P-Delta analysis[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: "'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org>
- Subject: P-Delta analysis
- From: "Khosrownia, Ghassem SPK" <GKhosrownia(--nospam--at)spk.usace.army.mil>
- Date: Tue, 12 Dec 2000 13:28:16 -0800 <GKhosrownia(--nospam--at)spk.usace.army.mil>
I am looking at FEMA 302 requirements for P-Delta analysis and somehow it is not making sense to me. Section 18.104.22.168 states that when the stability factor of a structure is below 0.1, then P-delta effects may be ignored. Same section places an upper limit on stability factor of 0.25. However, if beta is taken conservatively as 1.0, as suggested, and Deflection Magnification Factor of 5 is used for Special Concentric Braced Frames, then the upper limit is computed to 0.10. Does this mean that if SCBF is used then P-delta analysis is not required? Your thoughts are appreciated as always! Ghassem.
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