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Re: "dynamic analysis" for earthquake ?

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On Jun 7, 2005, at 11:09 AM, Tom Barsh @ Codeware wrote:

What qualifies as a "dynamic analysis" for response of a structure to an
earthquake?
In theoretical terms when the frequency of the loading is something near the frequency of the structure. There are various approximations like assuming the structure has only one natural frequency or amplifying the loading to include inertial loading which aren't strictly speaking 'dynamic analysis,' but close enough for practical purposes. When you use the approximations you need to know something about your assumptions.
Christopher Wright P.E. |"They couldn't hit an elephant at
chrisw(--nospam--at)skypoint.com   | this distance" (last words of Gen.
.......................................| John Sedgwick, Spotsylvania 1864)
http://www.skypoint.com/~chrisw/


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