Need a book? Engineering books recommendations...
Return to index: [Subject] [Thread] [Date] [Author]
Period of rigid non building structure
[Subject Prev][Subject Next][Thread Prev][Thread Next]- To: <seaint(--nospam--at)seaint.org>
- Subject: Period of rigid non building structure
- From: "Joseph R. Grill" <jrgrill(--nospam--at)cableone.net>
- Date: Mon, 14 Apr 2008 14:20:53 -0700
I am looking at (the overturning only, per the clients
request) an industrial stack that will be constructed of basically 24”
dia. ¼” thick pipe. The stack is about 25’ tall and will be
supported on a steel skid. ASCE 7-05 has an equation 15.4-5 for a Rigid
Nonbuilding Structure which must have a “T” less than .06s. If
not, the way I read things is that if it is not rigid then V is calculated from
12.8-1 using Cs from 15.4.1 (2). If all of this is correct, I guess that I
could assume a rigid structure (since V will be larger using 15.4-5 and wind
will probably govern overturning anyway) or calculate the period and see if it
isn’t rigid and use the other equations that I have listed. I don’t
really have a problem assuming a rigid structure and using the larger V, but I
would like to see what happens if it isn’t. Now to my other question.
How can I calculate the period of a non-building structure such as this. Basically
a vertical pipe on a steel skid. In all my references, I can’t find an
example. Can anyone out there help me out? Thanks, Joe Grill |
- Follow-Ups:
- Re: Period of rigid non building structure
- From: Christopher Wright
- Re: Period of rigid non building structure
- From: Jordan Truesdell, PE
- Re: Period of rigid non building structure
- Prev by Subject: RE: Pages from AASHTO
- Next by Subject: Re: Period of rigid non building structure
- Previous by thread: RE: Safety factor=4 for anchors
- Next by thread: Re: Period of rigid non building structure
- About this archive
- Messages sorted by: [Subject][Thread][Author][Date]