为解决传统剪力墙自重大,延性差等问题,本文提出了一种将剪力墙受力较小的中间部分开洞、并加人字支撑的新型“装配式轻质人字支撑抗震墙”,进而研究其抗震性能。以传统剪力墙的水平低周反复试验为基础,采用开发有限元软件OpenSees,对其进行数值模拟分析,和试验结果比较吻合良好,验证了本文采用的数值分析方法的合理性。设计装配式轻质人字支撑抗震墙BJZC、采用OpenSees进行数值模拟研究其抗震性能,结果表明:装配式轻质人字支撑抗震墙BJZC的抗震性能满足设计要求,但自重明显减轻;且由于支撑的作用,可形成具有多道抗震防线的结构。In order to solve the problem of the traditional shear wall, such as the major weight and poor ductility, a new “assembled shear wall with lightweight herringbone brace” was designed, and the seismic performances were studied. Based on the horizontal low cycle loading test for the traditional shear wall, the OpenSees was used to analyze the seismic performance of the shear wall. The analysis results fit well with the test results, which show that the numerical analysis method is reasonable in this paper. Furthermore, the assembled shear wall with lightweight herringbone brace BJZC was designed, and the seismic performance of which was analyzed by using OpenSees. The results show that the seismic performance of assembled shear wall with lightweight herringbone brace can meet design requirement. Compared to the traditional shear wall, the mass of the new-type wall is lighter. And because of the brace function, it can form a structural system with multi-channel seismic defenses.
