YIELD LINE MODEL FOR PREDICTING THE STATIC STRENGTH OF TUBULAR T-JOINTS WITH COLLAR PLATE REINFORCEMENT

摘要：

As the radial stiffness of the chord is much weaker than the axial stiffness of the brace in a tubular Tjoint under axial compression loading,failure usually occurs on the chord surface near the weld toe. To improve the static bearing capacity of the Tjoint,collar plate can be used to reinforce the entire joint. After reinforcement,the static strength of the T-joint is necessary to be evaluated accurately. Based on both the experimental and numerical observation to the failure mode,yield line model can be used to calculate the bearing capacity of the reinforced T-joints. In this paper,the equation for predicting the static strength of a tubular T-joint under axial compression loading is deduced based on yield line theory. The accuracy and reliability of the proposed equation are then assessed from both the finite element analysis and the experimental measurement. It is found that the yield line theory can provide reasonably estimation for the bearing capacity of T-joints with collar reinforcement.

关键词： Tubular T-joints Yield line model Collar plate Static strength Axial compression loading

作者: Yong-Bo Shao Wen-Jie Wang Hui Xia

作者单位: School of Civil Engineering,Yantai University,Yantai 264005,P.R.China School of Civil Engineering,Yantai University,Yantai 264005,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: 141-145

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）