SRC不等肢L形截面异形柱正截面承载力研究

在试验研究的基础上，对型钢混凝土（SRC）不等肢L形截面异形柱的正截面承载力进行有限元数值分析，利用数值迭代法编写了SRC不等肢L形截面异形柱承载力计算程序，由该程序可求得SRC不等肢L形截面异形柱正截面承载力的N-M及Mx-My相关曲线，并能得到其极限承载力，计算结果与试验结果吻合较好；通过计算可知，SRC异形柱比相同截面的钢筋混凝土（RC）异形柱正截面承载力提高很多；最后给出了SRC异形柱的实用设计计算步骤．

Loading-Bearing Capacity of Normal Cross Section of SRC L-shaped Columns

This paper presents a finite element analysis of the loading-bearing capacity of normal cross section of steel reinforced concrete(SRC) L-shaped columns on the basis of an experimental study.The computer program of loading-bearing capacity is compiled with numerical iterative method.With this program,N-M interaction curve and Mx-My interaction curve of SRC L-shaped column and its ultimate strength can be obtained.Comparative study shows satisfactory agreement between theoretical results and experimental results.Compared with the same section of reinforced concrete(RC) columns,the loading-bearing capacity of SRC columns is much higher.Finally,the numerical step of the practical design method of SRC L-shaped columns is proposed.