福建农林大学学报（自然科学版）2012，Vol.41Issue(6)：664-668,5.
长期荷载作用下钢管混凝土偏压柱力学性能的有限元分析
Finite element analysis on the concrete-filled steel tubular beam-column subjected to long-term sustained loading
摘要
Abstract
A finite element (FE) model was established to simulate the concrete-filled steel tubular (CFST) beam-column subjected to long-term sustained loading, the results were verified by experiment. By using the finite element model, the influence of long-term loading on the mechanical behavior of CFST beam-columns was researched in terms of the relation between load and deformation, and the interaction between steel tube and core concrete. The predicted behaviour of the CFST with long-term sustained loading was compared with that of the CFST without long-term effect. The results showed that the long-term sustained loading decreased the ultimate strength of CFST beam-columns and increased corresponding deformation, at last delayed the occurrence of interaction between steel tube and core concrete.关键词
钢管混凝土/长期荷载/偏压柱/有限元法/力学性能Key words
concrete-filled steel tube/ long-term sustained loading/ beam-column/ finite element mothod/ mechanical behaviour分类
建筑与水利引用本文复制引用
李永进,廖飞宇..长期荷载作用下钢管混凝土偏压柱力学性能的有限元分析[J].福建农林大学学报（自然科学版）,2012,41(6):664-668,5.基金项目
国家自然科学基金资助项目(51108084) （51108084）
福建省自然科学基金资助项目(2012J01192). （2012J01192）
