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- To: seaoc(--nospam--at)seaoc.org
- Subject: "special" concentric braced frame-indirect lateral support of be
- From: "Dave Evans" <DEVANS(--nospam--at)tnhanc.alaska.net>
- Date: Wed, 6 Aug 1997 17:01:09 -0900
- >received: from tnhanc.alaska.net by tnhanc.alaska.net (UUPC/extended 1.12p/sm2) with UUCP for seaoc(--nospam--at)seaoc.org; Wed, 06 Aug 1997 19:15:07 +0900
- Priority: normal
The 94 and 97 UBCs require both flanges of beams at the point of intersection of chevron braces in special concentric braced frames to be laterally supported directly or *indirectly*. 222.214.171.124 The 94 NEHRP Recommended provisions do not require direct lateral support but do require the beam to be designed for a lateral load = 1.5% of flange strength. (But no load combination is specified!) For **indirect** support, has your local B.O. allowed you to design per the NEHRP provisions? Would appreciate comments on this approach. Thanks, Dave Evans
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