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Re: wind gust response[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaint(--nospam--at)seaint.org
- Subject: Re: wind gust response
- From: "Michael Valley" <mtv(--nospam--at)skilling.com>
- Date: Mon, 27 Sep 1999 14:49:55 -0700
- Comments: Authenticated sender is <mtv(--nospam--at)linux.skilling.com>
- Priority: normal
ASCE 7 defines a structure with a lowest natural frequency less than 1 Hz (period > 1 second) as flexible. For this class of structure, the dynamic response to wind can be significant for both safety (dynamic amplification of response) and serviceability (perception of motion). Some guidance for such structures is provided in ASCE 7 and the National Building Code of Canada. However, the most common (and generally best) approach is to have wind tunnel testing performed. > From: "Aya-Welland, Ruben A." <RAyaWelland(--nospam--at)tt-cbm.com> > To: "'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org> > Subject: wind gust response > Date: Mon, 27 Sep 1999 16:14:24 -0500 > Reply-to: seaint(--nospam--at)seaint.org > Organization: http://www.seaint.org > > I have a question: > > > > I have a building whose preliminary fundamental frequency is rather high > > (about 5.5 seconds for a 30 story building). I am concerned that under > > wind loading (no seismic zone) this arrangement will see some undesirable > > dynamic response --- in terms of wind gust response...not life-safety > > issues, but rather, issues of comfort. It is a residential tower. The > > drifts are not outrageous --- it is more of an issue where the lateral > > system CR is quite eccentric to the building CM. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Michael Valley E-mail: mtv(--nospam--at)skilling.com Skilling Ward Magnusson Barkshire Inc. Tel:(206)292-1200 1301 Fifth Ave, #3200, Seattle WA 98101-2699 Fax: -1201
- wind gust response
- From: Aya-Welland, Ruben A.
- wind gust response
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