（香港华艺设计顾问（深圳）有限公司， 深圳 518026）

［摘要］以某超高层框支剪力墙结构作为研究对象，塔楼平面布置呈Z形，转换层位于中上部楼层（14层），形成超高位转换，且转换层以上楼层分为双塔。通过对各项指标的分析表明，塔楼核心筒墙体布置合理，转换层上下层刚度比满足限值要求，抗扭、抗侧刚度良好。根据结构体系特点，分别对转换层楼板最不利工况受力性能、标准层X向剪力墙长度和数量偏少、大震作用下结构体系综合抗震性能、部分墙柱沿高度方向存在二次转换、14层部分设置斜撑的转换梁等均予以深入分析。并针对大震弹塑性分析所揭示问题对关键结构构件予以优化改进，将其研究成果在施工图阶段得到贯彻落实。最后，对此类型超高层结构体系存在问题和解决方案予以总结。

［关键词］超高位转换； 框支剪力墙结构； 斜撑； 二次转换； 单向少墙结构； 大震弹塑性分析

中图分类号：TU318文献标识码：A文章编号：1002-848X(2018)11-0023-09

Mechanics analysis of partial frame supported shear wall structure of twin towers in  Z-typed plane layout with super high-position conversion

Zhang Wei, Chen Long, Liu Qun, Yan Lijun

(Hong Kong Huayi Design & Consultant(Shenzhen) Co.,  Ltd.,  Shenzhen 518026， China)

Abstract:The super high-rise building with partial frame supported shear wall structure was taken as the research object. The tower layout is Z-typed and the conversion floor is located in the middle and upper floor of 14th floor to form a super high-position conversion. The floors above the conversion floor are divided into twin towers. Through the analysis of each index, the results show that the layout of the corewall of the tower is reasonable, and the stiffness ratio of the upper and lower floors of the conversion floor meets the code limit requirements, and the torsion resistance and lateral stiffness are good. According to the characteristics of the structural system, parameters were analyzed including the stress performance of the most unfavorable condition of the conversion floor slabs, the X-direction shear wall with short length and small number in the standard floor, the seismic performance of the structural system under the action of the rare earthquake, the secondary conversion of wall along the height direction and diagonal brace and conversion beam set in 14th conversion floor. The problems revealed by the elastic-plastic analysis under rare earthquake were solved by optimizing and improving the key structural components, and the research results were implemented at the construction drawing stage. Finally, the problems and solutions for this type of super high-rise structural system were summarized.

Keywords:super high-position conversion; partial frame supported shear wall structure; diagonal brace; secondary conversion; few shear wall structure in one direction; elasto-plastic analysis under rare earthquake

作者简介：张伟，硕士，高级工程师，一级注册结构工程师，Email:593225626@qq.com。