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工程力学  2014 

薄钢板剪力墙结构边框架柱的设计方法研究

Keywords: 钢板剪力墙,边框架柱,剪切屈服,面外稳定,设计方法

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Abstract:

现行设计规范将钢板剪力墙结构边框架柱按压弯构件进行设计,并对其截面惯性矩进行了限制,该文首先介绍了钢板剪力墙结构挠曲系数及其边框架柱截面惯性矩限值的推演过程,然后通过理论分析和有限元计算研究了钢板剪力墙结构边框架柱的剪切承载力和面外稳定性,结果表明,边框架柱面内弯曲刚度不足或其剪切承载力不足,会导致钢板剪力墙结构出现“内凹”变形,影响墙板斜向对角拉力带的开展,因此,应按该文建议的方法对边框架柱的剪力设计值进行验算,避免边框架柱剪切屈服;现行设计规范对钢板剪力墙结构边框架柱截面惯性矩的限制,但未对边框架柱的面外稳定性提出要求,因此,应参照该文提供的方法,对钢板剪力墙结构的边框架柱进行面外屈曲的验算,保证其面外稳定性。

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