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Re: Who's using ASD or LRFD?[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaint(--nospam--at)seaint.org
- Subject: Re: Who's using ASD or LRFD?
- From: Rick.Drake(--nospam--at)fluor.com
- Date: Thu, 9 Dec 1999 09:01:03 -0800
>From a legal standpoint, the 2000 IBC will permit steel design by either LRFD or ASD. >From a practical standpoint, AISC is only supporting LRFD. All recent, current, and future research will only be incorporated into revisions to the LRFD specifications and manuals. ASD is frozen in 1989. AISC simply does not have the resources to support and maintain both methods. >From a practical standpoint, few schools (if any) are teaching ASD. The crop of new and enthusiastic structural engineers have probably been trained in LRFD. It would be a shame to force them to learn ASD simply because their bosses are not comfortable with change. >From a practical standpoint, most (if not all) of the FEM program writers are concentrating on LRFD support improvements. I see the situation as similar to DOS versus Windows. It didn't matter if one was better then the other, or if we were comfortable with DOS. All that mattered was that one was not going to be supported. There is nothing to prevent an experienced structural engineer from analyzing a structure using a slide rule, moment distribution, and ASD. After all, it is his judgment, experience, and how to put a building together that is most important. On the other hand using more recent tools such as a PC and LRFD will also work, and will allow better communication and understanding with younger associates. Rick Drake, SE Fluor Daniel, Aliso Viejo *************************************** "Randy Diviney" <rsdiviney(--nospam--at)hayeslarge.com> on 12/09/99 08:10:52 AM Please respond to seaint(--nospam--at)seaint.org To: seaint(--nospam--at)seaint.org cc: (bcc: Rick Drake/AV/FD/FluorCorp) Subject: Who's using ASD or LRFD? Does anyone have an idea of the split between these codes? How many engineers are using ASD and how many are using LRFD? Will everyone eventually have to make the switch?
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