刘  畅，  黄用军
（中建国际（深圳）设计顾问有限公司，深圳518048）

[摘要] 从理论上阐述了静力弹塑性分析( Pushover)方法的基本原理，从等效单自由度体系、将能力曲线转化为能力谱、求解性能点的不同方法和循环退化等方面进行了较为深入的探讨和对比。在此基础上，总结了不同类型超高层建筑用Pushover进行弹塑性变形验算的工程实践，包括带转换层的剪力墙结构、框架．核心筒结构、斜交网格．核心筒结构和带加强层的超高层结构等，分析结果表明，Pushover方法均有适用价值，并能取得与弹塑性时程分析比较接近的结果。
[关键词] 静力弹塑性；Pushover;侧向荷载模式；超高层结构；性能点；目标位移
中图分类号：TU398.7    文献标识码：A    文章编号：1002-848X(2012) S2-0153-05

Basic principle and case studies of high rise structures of Pushover analysis
Liu Chang, Huang Yongjun
( China Construction( Shenzhen)  Design International, Shenzhen 518048, China)

Abstract: The basic principles and methods of the Pushover analysis in FEMA356/440 and in ATC-40 was reviewed. Detailed study focus on the equal sdof system,capacity spectrum, target displacement and cyclic degradation. Different high rise structures are performed Pushover analysis, such as shear wall structure with transfer story, frame-core tube structure, diagonal grid-core tube structure and frame-core tube with outriggers. It is proved that pushover analysis is a effective method to establish the inelastic response of structure.
Keywords: static elastoplastic analysis; Pushover; lateral load distribute; lugh-rise; target displacement