套管加强T型管节点在平面外弯矩作用下极限强度分析  

Ultimate strength of sleeve reinforced T-joints under out-plane bending

作　　者：冯琦[1] 谭家华[1] 

机构地区：[1]上海交通大学船舶与海洋工程设计研究所,上海200030

出　　处：《海洋工程》2006年第2期77-81,共5页The Ocean Engineering

基　　金：国防科工委重大项目资助课题(2002781)

摘　　要：对用套管加强的T型管节点在平面外弯矩作用下的极限强度作了参数化分析。同时将相应的套管以及管节点的几何参数对极限强度的影响进行评估,并且和未加强的T型管节点作了比较。在计算结果中可以得出在管节点的弦管和撑管的连接处用合适的套管加强,可以将管节点在平面外弯矩作用下的极限强度提高到3倍多。Ibis paper presents the results of a parametric study to investigate the ultimate strength of sleeve reinforced hollow section T-joints subjected to out-plane bending. The effects of the relevant sleeve and the joint geometric parameters on the ultimate strength of these joints with different brace-chord combinations are evaluated and compared with those on un-reinforced joints. It is found that provision of an appropriately sleeve at the brace-chord intersection can provide ultimate strength enhancement up to three times to the un-reinforced joint.

关 键 词：极限强度 有限元分析 加强型节点 套管 

分 类 号：P752[天文地球—海洋科学]