空间管节点应力集中分析  

A Theoretical Analysis of Spatial Tubular Joint

作　　者：杨群[1] 谭庆辉 刘小兵[3] 

机构地区：[1]湖南工程学院建筑工程学院,湘潭411104 [2]武汉市审计局,武汉430012 [3]湖南大学土木工程学院,长沙410082

出　　处：《湖南工程学院学报（自然科学版）》2009年第1期83-86,共4页Journal of Hunan Institute of Engineering(Natural Science Edition)

基　　金：交通部西部交通建设科技项目(2003318798201)

摘　　要：在各种形式的管结构中,管节点的设计是一个非常重要的研究课题.直接焊接管节点是目前广泛应用的一种管节点形式,它是由几个主支管交汇而成的三维空间薄壁结构,其应力分布十分复杂.基于此,本文采用有限元软件ANSYS,选取常用三种典型直接焊接管节点进行有限元分析,研究了主支管管径比和主支管夹角两个参数对节点构件应力集中系数的影响.The designing of tubular joint is a very important subject for various tubal structures. The directly welded interpenetrating tubular joint which is widely used nowadays is spatial thin-wall entity composed of several braces and chords. Therefore, its distributing of stress is very complex. In this paper,with help of the software ANSYS, the effects of both ratio of diameter and angle of braces and chords on stress concentration factor of tubular joints are studied through finite element analysis of three typical directly welded interpenetrating tubular joints.

关 键 词：空间管节点 有限元 应力集中 应力集中系数 

分 类 号：U441[建筑科学—桥梁与隧道工程]