福州大学学报（自然科学版）2017，Vol.45Issue(4)：493-500,8.DOI:10.7631/issn.1000-2243.2017.04.0493
采用随机响应面法钢筋混凝土框架抗震全局灵敏度分析
Seismic global sensitivity analysis of RC frame structures through stochastic response surface methods
摘要
Abstract
In this thesis the stochastic response surface methods based on polynomial chaos expansions are used to construct the surrogate model of the structural response.Then the global sensitivity indices of the input variables based on analysis of variance (ANOVA) are calculated by this model.Three reinforce concrete frame structures whose floor numbers are different are taken as case study,and are modelled by OpenSees.The global sensitivity indices for the load carrying capacity limit state of structures are calculated by this method and plotted in the same figure.Then the influence of each input variable to the structural response is compared.Through the study of this thesis,some conclusions can be summarized.The main factor which influences the anti-seismic property of RC frame structures is the uncertainty of the seismic actions and the yield strength of the reinforcement.This conclusion is in agreement with the engineering empirical judgments,which proves that the method in this thesis has enough feasibility and calculating accuracy.关键词
多项式混沌展开/随机响应面法/钢筋混凝土框架/全局灵敏度Key words
polynomial chaos expansions/stochastic response surface method/reinforce concrete frame/global sensitivity分类
建筑与水利引用本文复制引用
宋彦,吕大刚..采用随机响应面法钢筋混凝土框架抗震全局灵敏度分析[J].福州大学学报（自然科学版）,2017,45(4):493-500,8.基金项目
国家自然科学基金资助项目(91315301-11) （91315301-11）
