摘要
对6个圆形钢管节点板式节点和6个钢管混凝土节点板式节点进行了对比试验研究。试验结果表明:空钢管试件在达到极限荷载时,节点板下空钢管发生严重局部屈曲而丧失承载力;钢管混凝土节点则在节点板下只发生轻微局部屈曲现象,具有较高的承载力。相比之下,钢管混凝土的承载力明显高于空钢管的承载力,并具有更好的延性性能。在钢管混凝土桁架中采用节点板式节点可比相贯节点更加方便、可靠。
Comparison experimental research on the ultimate strength of gusset plate joints of hollow steel tubes （HST） and concrete-filled steel tubes （CFST） were carried out in 12 specimens. The joints of steel tube with and without concrete infilling were compared. The static test results indicate that the load on gusset plate can be transferred to concrete composite column members, as long as the strength of welding that connects gusset plate and steel tube is enough. The bearing capacity and local buckling performances of CFST joints with gusset plate are much better than those of HST. This type of CFST joint can be used in composite truss systems and be more convenient than traditional connections.
出处
《建筑科学与工程学报》
CAS
2006年第1期45-48,共4页
Journal of Architecture and Civil Engineering
基金
陕西省自然科学基础研究计划项目(2005E215)
吉林省教育厅科研计划项目(2003056)
关键词
节点板式节点
空钢管
承载力
局部屈曲性能
钢管混凝土桁架
gusset plate joint
hollow steel tube
bearing capacity
local buckling performance
concrete-filled steel tube truss
