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采用ANSYS有限元程序对两边连接钢板剪力墙进行数值模拟分析。通过对单跨多层两边连接钢板剪力墙在单向荷载作用下的受力特点进行分析,提出、建立并验证等效简化计算模型;研究两边连接钢板剪力墙的受力机理和破坏模式,分析钢板高厚比λ和跨高比β对两边连接钢板剪力墙抗剪静力性能的影响,探讨框架梁的受力特点。研究结果表明:高厚比λ和跨高比β是影响两边连接钢板剪力墙抗剪静力性能的主要因素;两边连接钢板剪力墙与四边连接钢板剪力墙剪力传递方式是不同的;两边连接钢板剪力墙的钢板不对框架柱产生作用力和附加弯矩,更符合“强柱弱梁”的抗震设计理念;当采用高厚比较小的剪力墙时,两边连接钢板剪力墙对框架梁抗剪要求增大,须采取适当的构造措施,以保证框架梁不先于剪力墙破坏。
ANSYS finite element program is used to simulate the shear wall connected with steel plates on both sides. Based on the analysis of the mechanical characteristics of the single-span multi-story shear wall connected to the steel plate under the uniaxial load, the equivalent simplified calculation model is established and verified. The mechanical mechanism and failure mode The influences of the ratio of thickness to thickness λ and the ratio of span to height on the shear resistance of shear walls connected with both sides of steel sheet are analyzed, and the force characteristics of the frame beam are discussed. The results show that the ratio of height to thickness λ and the ratio of span to height β are the main factors that affect the shearing performance of the shear walls connected with steel plates on both sides. ; The steel plates connected with the steel plate shear walls on both sides do not exert force and additional bending moment on the frame columns, more in line with the seismic design concept of “strong column and weak beam”; when adopting the relatively small wall with high thickness and small thickness, Shear wall on the frame beam shear requirements increase, to take appropriate structural measures to ensure that the frame beam is not prior to shear wall damage.