| 超高层巨型钢框架结构失效模式分析 |
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| 引用本文： | 沈霄鹤,欧进萍. 超高层巨型钢框架结构失效模式分析[J]. 东南大学学报(自然科学版), 2009, 0(Z2) |
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| 作者姓名： | 沈霄鹤 欧进萍 |
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| 作者单位： | 大连理工大学建设工程学部;哈尔滨工业大学土木水利学院; |
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| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目(2007CB714202) |
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| 摘 要： | 采用有限元软件对某超高层巨型钢框架结构进行Pushover非线性弹塑性分析,分别改变巨型框架梁布置或巨型框架梁高,得到各自失效模式.比较不同结构失效模式下的最大侧移,找出具有最优结构构造形式的巨型钢框架结构.将最优巨型钢框架结构中的失效支撑替换为防屈曲支撑,重新通过Pushover分析其失效模式,与原最优巨型钢框架结构的失效模式进行比较.分析结果表明:部分采用防屈曲支撑改变了巨型钢框架的最弱失效模式,使其抗震性能得到明显提高.通过逐步将失效支撑替换为防屈曲支撑,得到具有最优经济性能和抗震性能的超高层巨型钢框架结构.
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| 关 键 词： | 巨型钢框架结构 Pushover分析 失效模式 防屈曲支撑 |
Failure mode analysis of super-tall huge steel frame structure |
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| Shen Xiaohe Ou Jinping, ). Failure mode analysis of super-tall huge steel frame structure[J]. Journal of Southeast University(Natural Science Edition), 2009, 0(Z2) |
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| Authors: | Shen Xiaohe Ou Jinping ) |
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| Affiliation: | Shen Xiaohe1 Ou Jinping1,2(1 Faculty of Infrastructure Engineering,Dalian University of Technology,Dalian 116024,China) (2 College of Hydraulic , Civil Engineering,Harbin Institute of Technology,Harbin 150090,China)) |
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| Abstract: | Based on the nonlinear elastic-plastic Pushover analysis of a super-tall huge steel frame structure by using a finite element software,failure modes of different huge steel beam locations and heights are obtained.By comparing maximal displacements of these failure modes,the optimal structure of huge steel frame structure can be obtained.Then,the failed brace of the optimal structure is replaced by the buckling-restrained brace and the failure mode of the new structure is compared with the former failure mod... |
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| Keywords: | huge steel frame structure Pushover analysis failure mode buckling-restrained brace |
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