摘要
提出了一种采用有限元法计算钢管混凝土受剪时等效剪切模量的方法,并对该方法的正确性进行了验证;在分析了各种因素对等效剪切模量影响的基础上,给出了圆形和方形钢管混凝土受剪时等效剪切模量的简化计算公式;与其他得到钢管混凝土剪切模量的方法进行比较,分析了结果不同的原因,表明对钢管混凝土采用有限元计算研究其等效剪切模量的方法更为合理.
The determination of equivalent shear modulus Of concrete filled steel tube （CFST） by experiment is very difficult. A method based on finite element analysis is proposed in this paper to numerically calculate the shear modulus. Based on the analysis of various factor, regressive formulas for equivalent shear modulus of concrete filled circular steel tube and concrete filled square steel tube are obtained. Comparisons of different methods for shear modulus of CFST are made and their different results are discussed. The results show that the method of finite element analysis is more reasonable with respect to the equivalent shear modulus of composite members.
出处
《力学与实践》
CSCD
北大核心
2009年第6期30-34,41,共6页
Mechanics in Engineering
关键词
钢管混凝土
等效剪切模量
有限元法
concrete filled steel tube, equivalent shear modulus, finite element analysis
