(华森建筑与工程设计顾问有限公司杭州分公司， 杭州 310012)

［摘要］以杭州市萧山区某竖向构件不连续、平面不规则的高层建筑为分析对象。首先根据场地和结构体系特点，分别为整体结构和关键构件指定了抗震性能目标。然后采用SATWE和MIDAS二种程序对结构进行了多遇地震作用下的弹性分析；设防地震作用下，框支框架及加强区剪力墙等关键构件的承载力验算；罕遇地震下非线性动力弹塑性分析。同时，应用弹性反应谱法分析楼板应力，并且对楼板薄弱区进行了中震反应谱下的截面承载力验算。按照小中震设计和大震复核的基本思路分析，结果表明项目能满足拟定的抗震性能目标。

［关键词］多遇地震； 关键构件； 薄弱区； 罕遇地震； 性能目标

中图分类号： TU318    文献标识码： A    文章编号： 1002-848X(2015)S2-0356-06

Feasibility analysis of a tall building structure beyond code limits in Hangzhou

Xia Meimeng, Fei Jinzu

(Huasen Architecture & Engineering Design Consultants Ltd., Hangzhou Branch Company, Hangzhou 310012, China)

Abstract: The analysis object is a high-rise building with discontinuous vertical member and irregular plane in Xiaoshan district in Hangzhou City. Firstly, the seismic performance targets for the overall structure and the key structural members were specified, according to the site classification and structural characteristics. Elastic analysis under the frequently occurred earthquake and nonlinear dynamic elastic plastic analysis under the rare earthquake were performed by SATWE and MIDAS software. Bearing capacity of the key structural members, such as, the conversion frame and the reinforced shear wall, under the medium earthquake were checked by MIDAS. Meanwhile, Stress analysis of elastic slab was performed by the elastic response spectrum method, and the bearing capacity of the weak area of the floor was carried out under the medium earthquake response spectrum. Based on the basic idea of frequent and medium earthquake design and rare earthquake check, the results show that the project can meet the proposed performance objectives.

Keywords: frequently occurred earthquake; key structural member ; weak area; rare earthquake; performance objective

作者简介：夏美梦，硕士，工程师，Email:hexiameimeng@163.com。