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工程力学  2013 

考虑剪力墙剪切变形影响的框架-剪力墙结构分析

DOI: 1000-4750(2013)06-0217-06, PP. 217-222

Keywords: 框架-剪力墙,剪切变形,固接体系,剪力分配,解析解,框架-剪力墙,剪切变形,固接体系,剪力分配,解析解

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Abstract:

考虑剪力墙剪切变形影响、连梁固接连接条件,基于Timoshenko两广义位移梁理论,建立了框架-剪力墙结构分析方法。当连梁约束抗弯刚度为0时固接体系可退化成铰接体系、当剪力墙抗剪刚度趋于无穷大时弯剪型剪力墙可退化为不考虑剪切变形的弯曲型剪力墙,因此该文方法可适应多种模型的计算。导出了三角形分布荷载、均布荷载和顶部集中荷载作用下挠度、转角、剪力墙弯矩和剪力、框架剪力的计算公式。计算公式表明:?框架广义剪力按框架抗推刚度和连梁约束抗弯刚度比分配?的结论在考虑剪力墙剪切变形影响的框架-剪力墙固接体系中不成立。通过算例讨论了框架-剪力墙的变形和内力分布,得到了连梁约束抗弯刚度显著影响框架-剪力墙的变形和内力分布、框架-剪力墙对剪力墙的抗剪刚度有敏感范围等结论。

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