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Building Natural Frequency[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: "'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org>
- Subject: Building Natural Frequency
- From: Zachary Goswick <ZachG(--nospam--at)angusyoung.com>
- Date: Mon, 8 Jul 2002 10:35:08 -0500
Title: Building Natural Frequency
I am curious how everybody comes up with the natural frequency of a building.
Does everybody have to input every building into a structural software
package to get this? All of the new codes I have seen require frequency in
order to calculate wind and seismic loads. Even the simplified methods
require this. How does everybody handle this for small buildings, or where
an existing building needs to be modified?
I know the equations and theory behind finding the natural frequency. I
am just looking for how this is found practically. Since the natural frequency
is (k/m)^1/2, I can find the mass of the building fairly easily, but the stiffness
of the whole building is much harder. You almost need to input it into some
sort of structural package to get this. How do others handle this?
Zachary Goswick, P.E.
Angus-Young Associates, Inc.
555 South River Street
Janesville, WI 53545-4827
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