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Re: Redundancy Factor[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaint(--nospam--at)seaint.org
- Subject: Re: Redundancy Factor
- From: SDGSE(--nospam--at)aol.com
- Date: Sun, 1 Aug 1999 20:00:51 EDT
In a message dated 7/31/99 7:48:05 PM Pacific Daylight Time, Seaintonln(--nospam--at)aol.com writes: << However, you as the design engineer are responsible to following the letter of the law and become liable for your actions if you choose to comply with the building official. It's not fair, but it is law. I gave you some references about the legal issues that were given to me by Arnold Bookbinder, S.E. who specializes in Expert Witness work and is involved in similar cases at this time. I'm afraid that we may simply have to work from within the system to help limit our liability. Dennis >> Dennis, As you and others have put forth the question "what has changed since 1988 UBC to require us to do rigidity analysis on wood floor diaphragm now that 1997 UBC is in effect?". I still have not seen or heard an answer other than "because it was presented in a seminar as an example." If the code language regarding rigidity analysis has not changed since 1988 UBC, why are we required to do that on residential wood frame diaphragms NOW and not since 1988? If we are going to be liable now for not doing rigidity analysis, why aren't we liable for not doing it since 1988, or are we? Some tribute the "change" to the aftermath of Northridge earthquake, but again the requirement was there since 1988. I don't believe there is a specific language in the 1997 code that says "the rigidity analysis is now required for wood frame diaphragms as well," so, why consider it now if it was not considered since 1988 UBC? If the intent of the 1988 UBC was to require such an analysis on wood frame diaphragms, why wasn't it advertised or didn't it become known then rather than now? Any official explanation or an explanation of an Official? Maybe the authors or presenters of the example presented at the wood seminar last year know the answer. Oshin Tosounian, S.E.
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- From: Lynn
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