钢骨建筑抗震评估与耗能减震构件简化模拟被引量：1

Seismic Evaluation and Simplified Analysis of an Existing High-rise Steel Building Retrofitted with Seismic Energy Dissipated Devices

下载PDF

导出

摘要对一座超高层钢骨建筑改建工程进行抗震设计与性能评估.进行了三维结构非线性静、动力分析以检核其抗震性能.非线性动力分析结果显示,最大考虑地震作用下,梁端最大弯矩塑铰约达0.010rad、屈曲约束支撑最大核心段应变达1.25%、偏心斜撑连杆梁的最大剪力塑铰为0.065rad,皆未超过AISC抗震规范所订构件性能要求或实验所得其变形能力.介绍了此改建结构的计算模型、模拟方法、非线性分析所得结构整体与主要构件的性能表现,其中亦提出梁柱节点及偏心斜撑构架剪力连杆梁等构件加固前后的简化模拟方法,并利用梁柱节点加固试验结果加以比较验证. Buckling restrained braces （BRBs）, eccentrically braced frames and moment connections retrofitted using two side plates were incorporated into the seismic retrofitting design of a 34story hotel tower in Kaohsiung, Taiwan. This paper discusses the analytical models for simulating the experimental responses of the BRB members, shear link beams of the eccentrically braced frames （EBFs）, and the welded moment connections before and after being retrofitted by side plates. Nonlinear response history analyses （NLRHA） indicate that the peak total beam end flexural rotation demand reaches 0.01 rad, the BRB peak core strain demand is about 1.25 % and the link beam total shear rotation demand reaches 0. 065 rad under the maximum earthquakes, which are less than those found in the seismic building codes or laboratorytests.

作者汪永宇徐伟翁元滔蔡克铨

机构地区同济大学土木工程学院台湾地震工程研究中心台湾大学土木工程学系

出处《同济大学学报（自然科学版）》 EI CAS CSCD 北大核心 2013年第10期1455-1462,1469,共9页 Journal of Tongji University:Natural Science

关键词超高层建筑非线性分析抗震需求抗震性能评估 high-rise buildings nonlinear analysis seismicdemand seismic performance evaluation

分类号 TU391 [建筑科学—结构工程] TH393.2 [机械工程—机械制造及自动化]

引文网络
相关文献

参考文献11

1汪永宇.高雄市34F/B5集合住宅新建工程第一次审查报告[R].台北:长青结构土木技师事务所,2007.
2台湾内政部.建筑技术规则[S].台北:营建杂志社,1989.
3Lin B Z, Chuang M C, Tsai K C. Object-oriented development and application of a nonlinear structural analysis framework [J]. Advances in Engineering Software, 2009,40 : 66.
4蔡克铨,翁崇兴,黄彦智.双钢管型屈曲约束耗能支撑的接合行为研究[J].台湾结构工程学会结构工程季刊,2008,18(3):15.
5黄彦智.含屈曲约束耗能支撑框架抗震性能的试验与分析研究[D].台北:台湾大学土木工程研究所,2002.
6台湾内政部建筑研究所.建筑物抗震规范条文与解说[S].台北:营建杂志社,2005.
7CHAI J F, LOH C H, SATO H. Modeling of phase spectrum to simulate design ground motions[J]. Journal of the Chinese Institute of Engineers, 2002, 25(4): 447.
8台湾地震工程研究中心,台湾灾害防救科技中心.2006恒春12·26地震事件勘灾报告[R].台北:台湾地震工程研究中心,2007.
9中华人民共和国住房和城乡建设部.GB50011—200l建筑抗震设计规范[S].北京:中围建筑工业出版社,2001.
10Vamvatsikos D, Cornell C A. Direct estimation of the seismic demand and capacity of oscillators with multi-linear static pushovers through IDA [J]. Earthquake Engineering and Structural Dynamics, 2006, 120(35) : 1097.