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劉  暢，  黃用軍
（中建國(guó)際（深圳）設(shè)計(jì)顧問(wèn)有限公司，深圳518048）

[摘要] 從理論上闡述了靜力彈塑性分析( Pushover)方法的基本原理，從等效單自由度體系、將能力曲線轉(zhuǎn)化為能力譜、求解性能點(diǎn)的不同方法和循環(huán)退化等方面進(jìn)行了較為深入的探討和對(duì)比。在此基礎(chǔ)上，總結(jié)了不同類型超高層建筑用Pushover進(jìn)行彈塑性變形驗(yàn)算的工程實(shí)踐，包括帶轉(zhuǎn)換層的剪力墻結(jié)構(gòu)、框架．核心筒結(jié)構(gòu)、斜交網(wǎng)格．核心筒結(jié)構(gòu)和帶加強(qiáng)層的超高層結(jié)構(gòu)等，分析結(jié)果表明，Pushover方法均有適用價(jià)值，并能取得與彈塑性時(shí)程分析比較接近的結(jié)果。
[關(guān)鍵詞] 靜力彈塑性；Pushover;側(cè)向荷載模式；超高層結(jié)構(gòu)；性能點(diǎn)；目標(biāo)位移
中圖分類號(hào)：TU398.7    文獻(xiàn)標(biāo)識(shí)碼：A    文章編號(hào)：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