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Re: Follow Up on Vertical Component of EQ in UBC97 and IBC2000

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On Dec 2, 2005, at 10:22 AM, Harold Sprague wrote:

BTW the NFPA for LNG states that the vertical seismic acceleration is 2/3 of the horizontal.
That's what's done characteristically for nuke plants unless someone has done some work to generate site specific spectra. It's based on an ASCE standard whose exact identification eludes me. There's a pretty good book (good because it's fairly short and to the point) on the topic called _Response Spectra Analysis_ by A. J. Gupta, which may be of help.
Christopher Wright P.E. |"They couldn't hit an elephant at
chrisw(--nospam--at)   | this distance" (last words of Gen.
.......................................| John Sedgwick, Spotsylvania 1864)

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