摘要
防屈曲耗能支撑作为一种当今具有很大应用前景的耗能减震构件,其显著的特点是能够提供比较大的初始刚度,同时又能在屈服后具有良好的耗能能力。以一简单钢筋混凝土框架为算例,选取多个防屈曲耗能支撑的参数,以动力时程分析方法为基础,对防屈曲耗能支撑的布置位置及其性能参数进行对比分析;提出优化设计方法;将分析的结论应用于某8度区的实际项目,获得了良好的经济效果。
As an energy-absorbing member with great application prospects,buckling-restrained brace(BRB)is characterized by its ability to provide relatively large initial stiffness and good energy dissipation after yielding.Taking a simple reinforced concrete frame as an example,this paper selected multiple parameters of BRB and compared the disposition with performance parameters of BRB based on dynamic time history analysis.The conclusion of this analysis is well applied to an actual project in a certain area with an seismic intensity of 8 with a good economic result.
作者
刘玲华
高乐
王颖蛟
米俊丞
LIU Linghua;GAO Le;WANG Yingjiao;MI Juncheng(Xi'an University of Technological Information,Xi'an 710200,China;Yunnan Design Institute Group,Kunming 650238,China)
出处
《结构工程师》
北大核心
2019年第6期1-7,共7页
Structural Engineers
基金
陕西省教育厅2017年专项科学研究计划项目(17JK0994)。
关键词
防屈曲支撑
优化设计方法
动力时程分析
buckling prevention
optimizeddesignmethod
dynamic time history analysis
