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Re: Re: Timber pitched roof as a Diaphragm[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaoc(--nospam--at)seaoc.org
- Subject: Re: Re: Timber pitched roof as a Diaphragm
- From: rlewis(--nospam--at)techteam.org (Richard Lewis)
- Date: 19 Jan 1998 15:02:51 GMT
- Cc: seaoc(--nospam--at)seaoc.org
seaoc(--nospam--at)seaoc.org,Internet writes: >I am not aware of any software for this application. >my personal opinion is that diapragms do not really >work for pitches over 6:12 unless you prvide a line >of bracing close to the ridge line. >my 2 cents worth. > > >Tarek Mokhtar >consulting engineer >Thanks for the response Tarek. I am of similar opinion and I normally >specify a diaphragm or braced connection at or near the ridge line. The >problem becomes difficult where the ceiling is to be vaulted. As a further >analytical tool for large roofs what do you think of using analyses like >that used for steel deck design? Or using thin shell analyses? I can't quite picture what you are discussing here. Are you stating that a roof with a pitch over 6:12 will not behave as a diaphragm unless there is a special connection at the ridge? What is a braced connection at the ridge? How does a vaulted ceiling come into play? Without seeing sketches I find it hard to follow what is being discussed. Thanks for taking the time to explain this further. __________________________________________________ Richard Lewis, P.E. Missionary TECH Team rlewis(--nospam--at)techteam.org The service mission like-minded Christian organizations may turn to for technical assistance and know-how.
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