摘要
对一种已经通过试验研究的钢管混凝土结构的新型节点进行数值分析。这种节点将钢管混凝土柱的钢管在节点区间断,在节点区设置芯钢管,使梁中的纵筋在节点中直通、梁与节点区混凝土成为一体可靠的传递梁中的弯矩、剪力及轴力。本文利用数值分析弥补模型试验数量少的缺陷。选择不同芯钢管壁厚的节点模型进行非线性有限元分析,得出芯钢管壁厚对节点承载力的影响规律。分析结果表明芯钢管壁厚是影响节点承载力的主要因素之一。
Numerical analysis of a new type of column - RC beam joint of concrete filled steel tubular （CFST） that has been through experimental research. The column of CFST is disconnected in the joint Zone where the core steel tube is installed, The longitudinal steel bar of the RC beam can go through the joint zone. The new type of joint makes beam and concrete in the joint zone become one,and the moment, shear and axial compression can be carried in a good condition. This paper makes use of numerical analysis to redeem the defect that the number of models is small. The nonlinear finite dement analysis on the rules of core steel tube wall thickness impacts the joint＇s beating capacity, The results show that core steel tube wall thickness is one of important factors that effects the joint＇s bearing capacity.
出处
《基建优化》
2006年第2期95-97,共3页
Optimization of Capital Construction
基金
陕西省自然科学基金项目(项目编号2001C07)
陕西省重点实验室访问学者专项基金项目
关键词
数值分析
芯钢管
本构关系
破坏准则
承载力
荷载位移曲线
numerlcal analysis
eore steel tube
stress- strain relations
failure criterion
bearing capacity
load displacement curves
