长高比和墙体开洞对填充墙倒塌影响的数值模拟

Numerical simulation on collapse of infill walls with different length-height ratios and opening in the wall

利用ABAQUS结构非线性分析软件,分析墙体不同长高比及洞口对地震作用下填充墙的抗倒塌性能影响。结果表明:墙体长高比增大,填充墙抗倒塌性能降低,在墙体中部设置构造柱可以有效地提高墙体整体性和抗倒塌能力。墙体开洞降低了填充墙的平面外刚度及其承载能力,在填充墙洞口四边设置构造柱及水平系梁,可以大幅提高结构的抗震性能。

ABAQUS software was used to analyze the anti-collapse ability of filler walls with different length-height ratios and holes under earthquake. Results showed that the anti-collapse ability of filler walls reduced when the length-height ratios of walls increased. Appending constructional column on the wall could effectively increase its entirety and anti-collapse ability. Opening in the wall would reduce the out- of-plane stiffness and carrying capacity, while setting up constructional columns and collar beams around the hole could improve the seismic resistant behaviors of structures.