TX型方钢管相贯节点X支管平面内抗弯刚度分析  

Analysis on In-plane Bending Stiffness of X Branch Pipe of TX-type Square Steel Tubular Joint

作　　者：张婷婷[1,2] 夏军武[1,2] 陈婷[1,2] 王秋芬[1,2] 

机构地区：[1]中国矿业大学力学与建筑工程学院,江苏徐州221008 [2]江苏省土木工程环境灾变与结构可靠性重点实验室,江苏徐州221008

出　　处：《江苏建筑职业技术学院学报》2012年第1期5-9,共5页Journal Of Jiangsu Vocational Institute of Architectural Technology

基　　金：国家自然科学基金资助项目(50774081)

摘　　要：为了分析TX型方钢管相贯节点在复杂边界条件下X支管平面内抗弯刚度的影响,以相贯节点足尺试验为基础,采用量纲分析得到影响相贯节点抗弯刚度的主要无量纲参数,利用有限元软件分析X支管平面内抗弯刚度受主要无量纲参数的影响,并展开研究.试验表明:主管的轴向拉力可以略微提高X支管平面内抗弯刚度.通过分析几何因素对抗弯刚度的影响,结果表明:X支管平面内抗弯刚度主要取决于X支管与主管的宽度比和宽厚比.In order to analyze the influence of in-plane bending stiffness of X branch pipe under complex boundary of spatial TX-type square steel tubular joint,we got dimensionless parameters which influence bending stiffness of tubular joint through dimensional analysis based on full-scale test of tubular joint.Meanwhile,we analyzed and studied main dimensionless parameters＇ influence on in-plane bending stiffness of X branch pipe using finite element software.The test shows that axial tension of the main tubular can slightly improve in-plane bending stiffness of X branch pipe.Through the analysis of geometrical factors＇ influence on bending stiffness,the result shows that in-plane bending stiffness of X branch pipe mainly depends on the width ratio of X branch to main tubular and width-thickness ratio of the main tubular.

关 键 词：TX型相贯节点 平面内抗弯刚度 足尺试验 量纲分析 有限元分析 

分 类 号：TU317[建筑科学—结构工程]