Need a book? Engineering books recommendations...
RE: RFI: Research Data on Lateral Design of Residential Structures[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaint(--nospam--at)seaint.org
- Subject: RE: RFI: Research Data on Lateral Design of Residential Structures
- From: "Harold Sprague" <spraguehope(--nospam--at)hotmail.com>
- Date: Fri, 20 Aug 2004 21:50:36 +0000
Bill,You need to watch for the source of wind data. It takes a while to take anemometer readings and normalize the readings to "3 second gust". A lot of weather people will report readings, but they need to be verified for free field accuracy (3 M tower, no local effects) and they need to be normalized for the 3 second gust. You would be best served by the NWS or NOAA, and be specific about the wind velocity data you want. I would look to the airports for the instrument locations. An instrument stuck on the side of a building will give you false data for your purposes.
Regards, Harold Sprague
From: "Bill Polhemus" <bill(--nospam--at)polhemus.cc> Reply-To: <seaint(--nospam--at)seaint.org> To: <seaint(--nospam--at)seaint.org> Subject: RFI: Research Data on Lateral Design of Residential Structures Date: Fri, 20 Aug 2004 16:36:54 -0500 I'm embarking on my quixotic quest to bring some sanity to the topic of design of residential structures in my state. I don't know if I'll rise or fall, but I ought to learn a bit on the way. I know that, so many members of SEAINT being SEAONC and SEAOSC, your concentration is on seismic design, but I also have been told many times that even on the Left Coast wind tends to govern design of residential structures. As I've stated here before-and as the late events in Florida have clearly emphasized-we have the potential for catastrophic wind events here on the Gulf Coast that ought to make every engineer and architect aware of the potential for property loss. But I continue to hear comments (particularly from contractors) that the 110 mph (3-second gust) design wind speed requirement is "too unrealistic." This wouldn't be that much of an issue except that the home-buildingindustry in Texas has a LOT of clout, and some of these guys do NOT have thebest interests of the consumer at heart. Their attitudes reflect in the continued staving-off of building code enforcement over the majority of Texas (essentially anywhere outside of an incorporated city limit) by the legislature, and generally in the fact that what building code requirements there are-essentially the IRC-are prescriptive and can be conveniently interpreted to the advantage of the homebuilder. To aid me in my quest, I need information that many of you can provide or point to. Specifically, I need information regarding the performance of residential structures in high winds, especially emphasizing engineered vs. non-engineered structures. I need wind-speed data (for example, I have looked in vain for wind speed data along the track of Charley through Florida-lots of "slammed into Punta Gorda with 145 mph winds" but not much about what the wind vectors were like along its path as a function of time-heck, even a "maximum 3-second gust" measurement all over the Florida peninsula during the even would be awfully helpful). I also need to know about any research that has been done into lateral load performance of residential structures, whether seismic or wind. Lastly, I need some suggestions as to what other ammunition I need to look for. Any help and advice would be appreciated. Thanks.
_________________________________________________________________Check out Election 2004 for up-to-date election news, plus voter tools and more! http://special.msn.com/msn/election2004.armx
******* ****** ******* ******** ******* ******* ******* *** * Read list FAQ at: http://www.seaint.org/list_FAQ.asp* * This email was sent to you via Structural Engineers * Association of Southern California (SEAOSC) server. To * subscribe (no fee) or UnSubscribe, please go to: http://www.seaint.org ******* ****** ****** ****** ******* ****** ****** ********
- Prev by Subject: RFI: Research Data on Lateral Design of Residential Structures
- Next by Subject: Re: RFI: Research Data on Lateral Design of Residential Structures
- Previous by thread: Re: Research Data on Lateral Design of Residential Structures
- Next by thread: Concrete Mix Design Variations