人民长江Issue(4)：74-77,4.DOI:10.16232/j.cnki.1001-4179.2015.04.018
两种残余变形模型计算结果对比分析
Comparative analysis of calculated results by using two residual deformation models
摘要
Abstract
A two-dimensional finite element analysis of CFRD is carried out to study the residual deformation and permanent deformation under the same condition by using modified Shenzhujiang residual deformation model and hyperbolic residual deform-ation model respectively to explore their differences and the applicability in practical calculations. The results show that:(1) the general principles of the two models are identical under the strong earthquake load;(2) the residual deformation at the dam crest and the nearby region simulated by the hyperbolic model is more precise because the mean principle stress is taken into account;(3) the contribution of the residual volumetric strain to the permanent displacement in the hyperbolic model is relatively lower than that in Shenzhujiang Model;the influence of the residual volumetric strain on the permanent deformation is lower than that of the residual shear strain.关键词
数值分析/残余变形模型/残余变形/残余应变Key words
numerical analysis/residual deformation model/permanent deformation/residual strain分类
建筑与水利引用本文复制引用
杨青坡,邹德高,李云清,杨小龙..两种残余变形模型计算结果对比分析[J].人民长江,2015,(4):74-77,4.基金项目
国家自然科学基金项目(51279025,51379028) （51279025,51379028）
新世纪优秀人才支持计划资助(NCET-12-0083) （NCET-12-0083）
