(华东建筑设计研究院有限公司, 上海 200002)

摘要: 重庆塔是总高度 430m 的超高层建筑,建筑造型呈下大上小,采用钢管混凝土斜柱框架⁃核心筒⁃环带桁架结构体系,无伸臂加强层. 对该工程结构特点与结构体系的选择进行了阐述,针对超限情况提出了相应的抗震措施以及抗震性能目标,依据相关规范及风洞试验结果,对结构设计方案及整体性能进行了详细研究,对斜墙转换、加强层比选、大直径钢管混凝土柱计算长度取值、防连续倒塌分析等进行了探讨. 结果表明,整体结构及构件的抗震性能均能满足抗震性能目标要求,结构防连续倒塌分析满足要求,结构体系合理、有效、安全.

关键词: 钢管混凝土斜柱; 环带桁架; 斜墙转换; 加强层; 防连续倒塌

中图分类号:TU973,TU398 文献标志码:A 文章编号:1002⁃848X(2022)10⁃0027⁃07

DOI:10. 19701 / j.jzjg.HDY2225

Structural design of Chongqing Tower

ZHANG Yaokang, JIANG Benwei, ZHOU Jian, ZHOU Hui, WANG Jing, ZENG Yang

(East China Architectural Design & Research Institute Co., Ltd., Shanghai 200002, China)

Abstract: Chongqing Tower is a super high⁃rise building with a total height of 430m. The architectural shape is large at thebottom and small at the top. It adopts a concrete⁃filled steel inclined column frame⁃core tube⁃ring belt truss structure systemwithout outrigger reinforcement. The characteristics of the engineering structure and the selection of the structural systemwere expounded, and the corresponding seismic measures and seismic performance targets were put forward for theover⁃limit situation. According to relevant specifications and wind tunnel tests, the structural design scheme and overallperformance were studied in detail. The conversion of inclined wall, comparison and selection of reinforcement layers,calculation of length of large⁃diameter concrete⁃filled steel column, and analysis of anti⁃continuous collapse were discussed.The results show that the seismic performance of the whole structure and its components can reach the expected targets, theresults of progressive collapse analysis meet the requirements, the structure system is safe and feasible.

Keywords:concrete⁃filled steel inclined column; ring belt truss; conversion of inclined wall; reinforcement layer;anti⁃continuous collapse

∗“上海超高层建筑设计工程技术研究中心”建设项目(14DZ2252800).

第一作者:张耀康,硕士,正高级工程师,一级注册结构工程师,主要从事大跨结构、高层建筑等各类结构设计与研究,Email:yaokang_zhang@ ecadi.com.

[引用本文] 张耀康,蒋本卫,周健,等. 重庆塔结构设计[J]. 建筑结构,2022,52(10):27⁃33,79. ZHANG Yaokang,JIANG Benwei,ZHOU Jian,et al. Structural design of Chongqing Tower[J]. Building Structure,2022,52(10):27⁃33,79.