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小震作用下钢筋混凝土框架的时程可靠度分析
Time-History Reliability Analysis of Reinforced Concrete Frames under Frequent Earthquakes
【摘要】 将地震地面运动作为随机过程,采用时域离散化手段,将改进虚拟变量法与矩阵位移法、时程分析法相结合,提出小震作用下钢筋混凝土框架结构的时程可靠度分析方法.该方法能考虑地震动和结构参数的双重随机性,可进行地震全过程的可靠度分析.算例分析表明了该方法的有效性.
【Abstract】 By taking earthquake motions as a random process and through time dispersion, a method combining improved pseudo variable method, matrix displacement method and timehistory method is proposed to analyze the timehistory reliability of reinforced concrete frames that are under frequent earthquakes. This method takes the randomicity of earthquake motions and structural parameters into account, and can be used for reliability analysis of the whole process of an earthquake. An example shows the validity of the method.
【关键词】 抗震结构;
钢筋混凝土;
时程可靠度;
【Key words】 earthquake resistant structure; reinforced concrete; time-history reliability;
【Key words】 earthquake resistant structure; reinforced concrete; time-history reliability;
- 【文献出处】 西南交通大学学报 ,Journal of Southwest Jiaotong University , 编辑部邮箱 ,2003年02期
- 【分类号】TU311.2
- 【被引频次】3
- 【下载频次】107