钢管桁架结构主方支圆K型搭接节点滞回性能分析  

The hysterestic characteristic of overlap K-joint with squara chords and circular braces

作　　者：孙昕[1] 

机构地区：[1]宁夏大学土木与水利工程学院,宁夏银川750021

出　　处：《四川建筑科学研究》2014年第4期50-53,82,共5页Sichuan Building Science

基　　金：宁夏自然科学基金项目(NZ12164)

摘　　要：利用非线性有限元法对主方支圆K型搭接节点的滞回性能进行了数值模拟,得到了该节点在不同参数β、τ、θ、Ov%影响下的滞回曲线、骨架曲线、延性和耗能性能。研究表明,节点在支主管夹角θ影响下,随着θ值的增加,滞回性能增强;节点在支主管径宽比β影响下,随着β值的增加,滞回性能减弱;节点在支主管厚度比τ、搭接率Ov%影响下,滞回性能增强得不明显。Finit-element analysis method to analyse the hysterestic characteristic of overlapped RHS-K joints,for numerical analysis.Can get the hysterestic curve,skeleton curve,ductility and the ability of power-wasting of the K-joint with squara chords and circular braces under the different parameterβ,τ,θ,Ov％.Obtain the conclusion：Under the influnce of θ,as θ increasing,the hysterestic characteristic of overlap increasing under the influnce ofβ,as β increasing,the hysterestic characteristic of overlap weaking.Under the influnce of τ,as τ increasing,the hysterestic characteristic of overlap increasing.Under the influnce of Ov％,as Ov％ increasing,the hysterestic characteristic of overlap increasing.

关 键 词：钢管桁架结构 主方支圆K型搭接节点 滞回性能 有限元法 

分 类 号：TU392.3[建筑科学—结构工程] TU393.3