中南大学学报（自然科学版）2012，Vol.43Issue(5)：1954-1962,9.
混凝土结构地震需求参数敏感性分析
Sensitivity analysis of earthquake demand parameters
摘要
Abstract
The uncertainty generation of earthquake demand parameters (EDP) caused by a series of basic uncertain factors was analyzed. The advantages and limitations of FOSM method, Tornado Diagram method and mathematical statistics method were discussed for sensitivity analysis. Taking a typical frame structure as an example, the sensitivity of four kinds of earthquake demand parameters to a series of basic uncertainties was estimated using the three kinds of methods and the basic uncertainties were sorted according to their importance obtained by sensitivity analysis. The results show that EDP are the most sensitive to the intensity measure and the profile of ground motions, rather less sensitive to the viscous damp, the mass and the concrete compressive strength, but not sensitive to other basic uncertainties, which provides the evidence for the random response and probabilistic seismic demand analysis of structures efficiently.关键词
敏感性分析/混凝土结构/地震Key words
sensitivity analysis/ concrete structures/ earthquake分类
建筑与水利引用本文复制引用
尹犟,胡其高,李鹏..混凝土结构地震需求参数敏感性分析[J].中南大学学报（自然科学版）,2012,43(5):1954-1962,9.基金项目
湖南省科技计划项目(S2012F1023) （S2012F1023）
长沙市科技计划项目(K1109018-11) （K1109018-11）
