节点文献

空间结构鼓形节点受力性能研究

Load-carrying Properties of WeldedHollow Truncated Joint in Sphere Space Grid

【作者】 赵贺

【导师】 顾强;

【作者基本信息】 西安建筑科技大学 , 结构工程, 2004, 硕士

【摘要】 在我国大空间、大跨度的结构越来越多,节点在空间结构中起着重要的作用,焊接空心节点在网架、网壳等空间结构中被大量应用。本文研究的是一种新型的节点——焊接空心鼓形节点。 《网架结构设计与施工规程》JGJ7-91和《网壳结构技术规程》JGJ61-2003只对空心球节点提出了承载力的计算公式,而没有引入鼓节点。本文采用ANSYS程序对鼓节点的强度进行了弹塑性有限元计算和分析。通过对各种不同尺寸和加载工况的节点进行计算,找到影响承载力的主要因素,通过回归分析提出节点承载力计算公式,并与焊接空心球节点进行比较,分析了鼓节点与空心球节点在承载能力上的差别。本研究对于焊接空心鼓节点在网壳结构中的推广应用有实际意义。

【Abstract】 Space truss has developed rapidly in China and designer for its advantage has accepted the sphere soace grid.Joints have play very important role in structure .Generally,the weided hollow ball joints are adopted .But sometime they can not satisfy the requisition of structure.So a lot of people are busy searching for joints and fouding out all kinds of joints .A new joint -welded hollow truncated joint will be now in this paper.In order to get load-carrying capacity of a truncated joint,we use ANSYS finite element method to calculate the joints with diffent kinds and find out factors influencing the result.Then the calculation formulas of load-bearing capcacity of joint under three kinds forces can be presented in ths paper .Finally,we will see the different between truncated joint and ball joint.

  • 【分类号】TU399
  • 【被引频次】3
  • 【下载频次】123
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