抗侧刚度比对限制屈曲支撑抗震性能的影响

英文篇名：The affections of lateral stiffness ratio to the seismic behavior of buckling-restrained braces
中文刊名：四川建筑科学研究
英文刊名：Sichuan Building Science
作者：董作超 ; 王洪岭
英文作者：DONG Zuochao1 ; WANG Hongling2 ( 1. School of Civil Engineering & Architecture ; Jiangsu University of Science and Technology ; Zhenjiang 212003 ; China ; 2. School of Mechanics & Civil Engineering ; China University of Mining & Technology ; Beijing 100083 ; China)
中文关键词：钢框架结构 ; 限制屈曲支撑 ; 抗侧刚度比 ; 抗震性能
英文关键词：steel frame ; buckling-restrained brace ; the ratio of lateral rigidity ; seismic behavior
出版日期：2010-10-25
机构：江苏科技大学土木工程与建筑学院;中国矿业大学(北京)力学与建筑工程学院;
年：2010
期：05
出版单位：四川建筑科学研究

摘要

介绍了一种新型耗能钢框架结构支撑——限制屈曲支撑(BRBs),定义了BRBs与钢结构框架的名义抗侧刚度比R,建立了几何计算模型,并采用ANSYS有限元软件对其进行振型分解反应谱法和时程分析计算。然后,对计算结果进行分析,得出了名义抗侧刚度比R的变化对结构抗震性能的影响规律,总结出了多高层建筑刚度比的最佳取值范围。本文结论可为限制屈曲支撑结构设计提供参考依据。
A new type of dissipate energy brace is introduced in this paper——buckling-restrained brace( BRBs) ,and lateral stiffness ratio R of the BRBs and the steel frames is defined. The geometry model is framed and computed with finite element analysis by the modal response spectrum method and time-history method. Associating with different R value changes,the frames' seismic performance is different. The prime values of the ratio to high-rise buildings are given. The conclusion can be considered as references in the design of the buckling-restrained braces.

引文

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