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首页> 外文会议>Structural Stability Research Council 2002 Annual Stability Conference; Apr 24-27, 2002; Seattle, Washington >BRACING REQUIREMENTS FOR INELASTIC BEAMS
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BRACING REQUIREMENTS FOR INELASTIC BEAMS

机译：弹性梁的支撑要求

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摘要

The finite element analysis results for lateral bracing behavior in inelastic beams are presented. The research focuses on the lateral bracing requirements to achieve a specified rotation capacity in braced members subjected to uniform moment and moment gradient. The brace stiffness and lateral brace force requirements for inelastic steel members are evaluated considering the effects of unbraced length, flange slenderness and web slenderness. The results show that the current AISC-LRFD requirements for brace stiffness are adequate and not sensitive to rotation capacity. Brace forces, however, increase as rotation capacity increases. Brace forces also increase significantly when local flange and web buckling occur.
机译：给出了非弹性梁横向支撑性能的有限元分析结果。研究集中在横向支撑要求上，以使承受均匀力矩和力矩梯度的支撑构件达到指定的旋转能力。考虑到无支撑长度，法兰细长度和腹板细长度的影响，对非弹性钢构件的支撑刚度和横向支撑力要求进行了评估。结果表明，当前AISC-LRFD对支撑刚度的要求是足够的，并且对旋转能力不敏感。然而，支撑力随着旋转能力的增加而增加。当发生局部凸缘和腹板屈曲时，支撑力也会显着增加。

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