钢管塔架K型加肋节点的承载力分析  

Ultimate Strength of Tube-gusset Connections With Ribbed Plate

作　　者：刘红军[1] 李正良[1] 

机构地区：[1]重庆大学土木工程学院重庆,400045

出　　处：《土木建筑与环境工程》2010年第3期27-34,共8页Journal of Civil,Architectural & Environment Engineering

基　　金：国家自然科学基金项目(50678181);国家电网公司科技项目(SGKJ[2007]413);重庆大学研究生创新团队项目(200909c1017)

摘　　要：通过试验对1/4加肋K型钢管插板连接节点的极限承载力进行了研究,同时借助有限元分析了主管壁厚,环板宽度和厚度以及不同加肋方式对节点极限承载力的影响。在此基础上根据试验和有限元结果以及节点的破坏模式提出了适用于估算此类节点极限承载力的极限分析模型和建议公式。结果表明:加肋K型钢管插板连接节点的承载力受主管壁厚和环板宽度和厚度的影响较大,且分主管控制和环板控制2种情况来讨论。采用的四铰破坏机理和五铰破坏机理极限分析模型能较好的反映此类节点的受力性能。The connections wi experiments were carried out to investigate the behavior and strength of tube - gusset with different thin-wall, different width and thickness analyzed. The and the width FEM, the strength of tube gusset connections of ribbed plate and modes of ribbed plate was calculation method of ultimate strength were propos and thickness connections with ribbed plate of ribbed plate have with the conditions of evident influe ed. It is found that the thickness of tube nce on the strength of tube - gusset tube and ribbed plate.

关 键 词：K型加肋节点 极限承载力 插板连接 参数化分析 极限模型 

分 类 号：TU391[建筑科学—结构工程]