不同加劲板布置下T型方钢管节点内力分析  

Analysis on Mechanical Behavior of T-shaped Square Tubular Joints Reinforced by Different Kinds of Stiffener Plates

作　　者：牛宇辰[1] 

机构地区：[1]同济大学建筑工程系,上海200092

出　　处：《重庆建筑》2017年第5期58-60,共3页Chongqing Architecture

摘　　要：该文基于ABAQUS有限元软件对T型方管节点的无加劲肋板、纵向加劲肋板、横向加劲肋板三种节点形式的弹性模型下力学行为进行数值分析,结果表明横向加劲肋板可以使节点应力集中现象得到有效缓解。此外该文采用理想弹塑性模型对节点进行比较,发现与弹性分析结果相差较大。与规范设计承载力相比,弹塑性模型通过位移控制得到的极限承载力存在一定的冗余。This paper performs a numerical analysis on the mechanical behavior of T-shaped square tubular joints models reinforced by no stiffener plate,longitudinal and transverse ones with ABAQUS finite element software, and the results show that the transverse stiffener plate can effectively ease stress concentration. In addition, an ideal elastic-plastic model is adapted to compare the joints, and considerable differences are found. Compared with bearing capacity under normal design codes, the ultimate bearing capacity of the elastic-plastic model obtained by displacement control has certain redundancy.

关 键 词：T型方管节点 加劲板 弹塑性模型 应力集中 

分 类 号：TU392.3[建筑科学—结构工程]