（1 山东科技大学山东省土木工程防灾减灾重点实验室， 青岛 266590; 2 广州容柏生建筑结构设计事务所， 广州 510170）

［摘要］太原某办公楼结构高度149-4m，抗侧力体系为钢筋混凝土框架-核心筒结构。本工程存在扭转不规则，具体介绍了结构方案优化，包括剪力墙布置、双连梁、墙缩进、剪力墙开洞、次梁布置。对该项目进行了抗震性能化设计，根据构件的重要性给出了不同的性能目标，采用有限元法对结构的多遇地震、设防地震弹性响应进行了分析，建立了弹塑性计算模型并进行了罕遇地震动力弹塑性时程分析。针对结构不规则，采取了相应的设计措施。分析结果表明，本工程能满足规范的各项抗震设防要求，结构具有可靠的抗震承载能力。

［关键词］框架核心筒结构； 弹塑性时程分析； 抗震性能设计

中图分类号：TU375文献标识码：A文章编号：1002-848X(2018)21-0038-04

Structural design of an out-of-code high-rise building in Taiyuan

Ma Jianglin1, Pang Bo1, Wang Xin2

(1 Shandong Provincial Key Laboratory of Civil Engineering Disaster Prevention and Mitigation, Shandong University of Science and Technology, Qingdao 266590,China; 2 RBS Architecture Engineer Design Associates, Guangzhou 510170, China)

Abstract:The structural height of an office building in Taiyuan is 149-4m. The anti-lateral force system is reinforced concrete frame-core tube structure. Torsional irregularity exists in this building. The optimization of structural schemes was introduced in detail, including shear wall layout, double coupling beam, wall indentation, shear wall with openings and  secondary beam arrangement. Performance-based seismic design was conducted and different performance objectives were given according to the importance of the members. Finite element numerical method was used to analyze the structural elastic responses under frequent and fortification earthquakes. Elasto-plastic calculation model was built to conduct dynamic elasto-plastic time-history analysis under rare earthquake. The corresponding measures in the design were adopted for the irregular structure. The analysis results show that this building can meet the specification requirements for seismic resistance and has reliable seismic bearing capacity.

Keywords:frame-corewall structure; elastic-plastic time-history analysis;  performance-based seismic design

通讯作者：王欣，硕士，一级注册结构工程师，Email:75516667@qq.com。