FEM ANALYSIS FOR STIFFNESS OF HOLLOW SPHERICAL JOINTS WITH RIB STIFFENERS

摘要：

Joints stiffness has important effect on stability ultimate bearing capacity of large-span spatial reticulated shell. The welded hollow spherical joint with rib stiffeners is a type of joint applied widely on large-span spatial reticulated shell. In this paper,the axial flexibility and flexural stiffness of welded hollow spherical joint with different rib stiffeners are analyzed with the FEM software ANSYS,compared with the non-rib hollow spherical joints stiffness,then the calculation formulas of the axial flexibility and flexural stiffness under different rib stiffeners are given through regression analysis. Some important conclusions were obtained,which can provide theoretical foundation for the stability ultimate bearing capacity analysis considering joints stiffness and can be applied on practical design.

关键词： Joints stiffness Rib stiffeners Regression analysis Stability ultimate bearing capacity

作者: Fan Wang Xing Wang Hong-Bo Li Feng Yang

作者单位: Ningbo University of Technology,Ningbo 315016,P.R. China

会议类型: 国际会议

会议名称: The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)

会议地点: 广州

会议语种:英文

页码: 12-14

在线出版日期: 2010-12-01（万方平台首次上网日期，不代表论文的发表时间）