（1 中国建筑设计院有限公司， 北京 100044； 2 北京建筑大学， 北京 100044）

［摘要］恒大国际金融中心G区裙房地上5层，主体结构高度29.0m，采用带支撑的钢框架结构体系，局部采用大跨度桁架转换做法。首先结合建筑方案及经济性分析说明了主体结构的体系选型方案。随后，系统介绍了项目设计过程中针对塔楼结构平面不规则、竖向不规则及其他不规则项选用的计算措施和设计措施。同时，对主体结构设计选用的性能化设计方法进行了具体陈述。最后，对大跨度桁架转换结构的补充计算方法和结构加强措施进行了重点介绍。研究及设计结果表明：通过选用合理的计算措施和设计措施，原结构的不规则性得到有效控制，结构各项计算指标可以较好地满足规范要求，结构安全、可靠，结构设计可行。

［关键词］钢框架； 桁架转换； 不规则； 性能化设计

中图分类号： TU352 文献标识码： A文章编号：  1002-848X(2016)S1-0054-05

Structural design and analysis of G podium of EVERGRANDE International Center

Zhang Lu1, Zhang Zuojia1, Guo Qiang2

（1 China Architecture Design Group， Beijing 100044， China；2 Beijing University of Civil Engineering and Architecture， Beijing 100044， China）

Abstract: G podium of EVERGRANDE International Center with the height of 29.0m and 5 floors on the grand, uses the steel frame with bracing structure system and large span truss transfer structure. Firstly, combined architecture scheme and economic analysis, the structural system selection of the main structure was explained. Then, the calculation measures and the design measures about the plane irregularity, the vertical irregularity and the other irregularity of the structure systematically were introduced. At the same time, the performance design method of the structure was particularly stated. Finally, supplement calculation method and structure strengthening measures about the large span truss transfer structure were emphatically presented. Research and design results show that, by using reasonable computational measures and design measures, the irregularity of the original structure has been effectively controlled, and the structure calculation index can better meet the requirements of the standards. The structure is safe, reliable and the structural design is feasible.

Keywords: steel frame; truss transfer; irregular; performance design

作者简介： 张路，博士，高级工程师，Email:499686486@qq.com。