新型双钢管并联K形相贯节点的受力性能研究  

Mechanics Behavior of CHS Double Chord Parallel K-joints

作　　者：蒋剑峰[1] 冯健[2] 戴雅萍[3] 赵宏康[3] 

机构地区：[1]东南大学建筑设计研究院,南京210096 [2]东南大学土木工程学院,南京210096 [3]苏州市建筑设计研究院有限责任公司,215002

出　　处：《特种结构》2007年第2期44-47,共4页Special Structures

基　　金：江苏省自然科学基金项目(ZD24)

摘　　要：本文介绍了一种新型的钢管桁架结构的相贯节点形式—双钢管并联K形节点。以有限元数值模拟为主要手段,研究了主要几何参数β、γ、τ、θ、α(具体含义见文中)对极限承载力的影响,并将不同几何参数的节点有限元承载力计算结果与相关规范、文献建议的节点承载力设计公式计算结果进行了比较,同时考察了并联K形节点和平面K形节点受力性能的主要不同。最后,提出了一些K形相贯节点的设计建议。One navel type of tubular joints named double chord parallel K-joints is introduced in this paper. Using the finite-element study as a platform, this paper presents further work. Influence of main geometry parameters, such as β、γ、τ、θ and α are studied. The ultimate strength obtained from FEM are compared with those calculated from related code and equation suggested by other scholar. Difference of mechanics behavior between parallel K-joints and planar K-joints is also discussed. Finally, some design suggestion is recommended.

关 键 词：并联K形 相贯节点 极限承载力 

分 类 号：TU392.3[建筑科学—结构工程]