Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

Re: Fundamental Frequency of Tall Steel Tank

[Subject Prev][Subject Next][Thread Prev][Thread Next]
This may not be directly applicable to the frequency you're looking for, but there is a book by Robert Blevins, "Formulas For Natural Frequency And Mode Shape" published by Kreiger Publishing Co in Florida. It has cylindrical shell frequencies, as well as a discussion of the modes for beam-like actions.

M. David Finley, P.E., P.A. wrote:
I'm doing some preliminary sizing for the foundations for some tall cylindrical steel tanks - 8'-0" diameter x 66'-0" high.  They will be in a low seismic area, so wind loading is my concern right now.
I need to estimate the fundamental frequency of the tank in order to determine the Gust Factor per ASCE 7.  Can someone point me to a good reference?  Is there a reasonably conservative value I can assume for this preliminary work?
Since I am just considering wind at this point, the empty tank will control and therefore I don't need to consider the added effects of the liquid contents in determining the fundamental frequency, right?


David Finley
M. David Finley, P.E., P.A.
2086 SW Main Boulevard - Suite 111
Lake City, FL  32025

******* ****** ******* ******** ******* ******* ******* *** * Read list FAQ at: * * This email was sent to you via Structural Engineers * Association of Southern California (SEAOSC) server. To * subscribe (no fee) or UnSubscribe, please go to: * * * * Questions to seaint-ad(--nospam--at) Remember, any email you * send to the list is public domain and may be re-posted * without your permission. Make sure you visit our web * site at: ******* ****** ****** ****** ******* ****** ****** ********