摘要
基于性能/位移的混凝土小型空心砌块结构抗震设计需要确定不同性能水平下的目标位移。改进了混凝土小砌块结构的非线性计算方法,用等效框架模拟混凝土小砌块结构,适用于对混凝土小砌块结构的抗震性能进行评估。根据Chopra对能力谱方法所做的改进,给出了混凝土小砌块结构目标位移的确定方法。对某6层混凝土小砌块结构的分析结果表明,改进的能力谱方法可以得到和动力非线性分析方法比较接近的分析结果,为确定混凝土小砌块结构在不同性能水准下的目标位移提供了一种简便实用的分析方法。
The accurate determination of target displacement is demanded for performance/displacement based seismic design of concrete small-sized hollow block masonry at different performance levels. A method for nonlinear analysis of concrete smallsized hollow block masonry is developed. This method is based on an equivalent frame simulation of concrete small-sized hollow block masonry and suitable for seismic assessment of concrete small-sized hollow block masonry. Based on the improved capacity spectrum method by Chopra, a method for determining target displacement of concrete small-sized hollow block masonry is presented. From the analytical results of a 6 storey concrete small-sized hollow block masonry building, the method gives a good agreement with the results from dynamic nonlinear procedure, so it provides a simplified practical method for the determination of target displacement of concrete small-sized hollow block masonry at different performance levels, and the method is applicable to seismic design code.
出处
《建筑结构》
CSCD
北大核心
2007年第8期70-73,共4页
Building Structure
基金
城市与工程安全减灾省部共建教育部重点实验室开放基金项目
北京市重点实验室开放基金项目
关键词
混凝土小型空心砌块结构
基于性能
目标位移
concrete small-sized hollow block masonry
performance-based
target displacement
