剪力墙的面外刚度对建筑结构计算结果的影响

Effect of bending stiffness in shear wall upon computational results of building structure

剪力墙在钢筋混凝土建筑结构中有着广泛的应用。在计算时一般都忽略剪力墙面外刚度的贡献。本文利用一种同时具有面内刚度和面外刚度的剪力墙模型，研究了剪力墙的面外刚度对整体结构的控制位移和固有频率的影响。结果表明，剪力墙面外刚度的贡献与剪力墙之间的耦合程度以及是否采用刚性楼板假定有关，在大型复杂的纵横剪力墙结构中，剪力墙面外刚度的贡献不可忽略。

Shear wall has been widely used in reinforced concrete building structures. Generally, the contribution of bending stiffness out of plane in shear wall is neglected in engineering analysis. The authors studied the contribution of bending stiffness in shear wall upon deflection and natural frequency of the whole structure by one kind of shear wall model, which has in\|plane stiffness and bending stiffness out of plane simultaneously. The study shows that the contribution of bending stiffness in shear wall is related to coupling degree of shear wall in structure, and whether rigid diaphragm assumption is adopted. In large\|scale and complicated shear wall structure, the effect of bending stiffness in shear wall is not negligible.