摘要
主要介绍了一种新型截面的钢结构构件的试验分析。该截面由3块钢板和3个在角点处设置的钢管组成,围成一中空的三角形截面,分别进行轴心受压和偏心荷载的测试。试验结果表明钢管强度远大于期望值,并且钢管可以视为固定端以抵抗邻近钢板的局部变形,另外还发现由于两板之间钢管的存在,每块板是独立屈曲的,构件的最终破坏以钢管的局部破坏为准。
The experimental study of steel structural member with a new type of cross section is presented. The section is in hollow triangular shape, and is composed of three steel plates and three tubes at its each apex, which has been concentrically tested by compression, and by eccentric load. The experimental results indicate that the strength values of the tubes are far greater than the expected ones, and the tubes may be regarded as fixed ends against the local buckling from the adjacent plates. In addition, it is found that each plate buckles independently due to the existence of the tubes between the steel plates, and the final failure of the member is caused by local failure of the tubes.
出处
《桥梁建设》
EI
CSCD
北大核心
2004年第2期20-23,共4页
Bridge Construction
基金
河海大学科技创新基金资助项目(2003410743)
关键词
钢管
轴心受压
偏心荷载
极限承载力
局部屈曲
试验
steel tube
concentric load
eccentric load
ultimate carrying capacity
local buckling
experiment
