摘要
基于U .L列式单元增量平衡方程 ,采用单元节点截面内力塑性系数法建立钢管混凝土柱单元弹塑性刚度矩阵 ,并编制了钢管混凝土受压柱弹塑性稳定极限承载力非线性分析程序 ,算例结果与文献试验结果良好接近 。
Based on the U.L. formula of element incremental balance equation, the elastoplasticity stiffness matrix of CFST column elements is established using plastic coefficient method of element cross-sec-tion force. A computer program for analyzing ultimate load of nonlinear elastoplasticity stability of CFST col-umn subject to compression is also developed. The presented method and program are then validated using data in the literature with an excellent agreement.
出处
《中南公路工程》
北大核心
2004年第2期62-64,共3页
Central South Highway Engineering
关键词
钢管混凝土
受压柱
弹塑性
极限承载力
非线性分析
截面内力
塑性系数法
CFST column
column element
elastoplasticity
ultimate bearing capacity
force on cross-section
plastic coefficient method
