开孔焊接空心球节点承载能力试验研究与应用  

Experimental Research and Application of Welding Hollow Sphere Joint with Holes

作　　者：舒赣平[1] 廖述江 孟宪德[1] 李新华[2] 

机构地区：[1]东南大学土木工程学院,南京210018 [2]淮海工学院,222005

出　　处：《建筑结构》2002年第2期43-46,共4页Building Structure

摘　　要：预应力网架能较好地满足大空间、重荷载结构的要求 ,但其下弦节点比较难处理。现根据工程实践提出了一种新的节点———开孔焊接空心球节点 ,并用弹塑性有限元方法和模型试验研究了其承载能力及影响承载能力的因素 。Prestressed space grid developed in recent years has good performances,but its bottom chord joint is hard to dispose.A new type of joint\_welding hollow sphere joint with holes(WHSJH)is put forward,its load carrying capacity and influencing factors are researched by means of the finite element method and full scale model experiments.Some conclusions beneficial to design are drawn satisfactorily.

关 键 词：空心球 节点 弹塑性 有限元 预应力 网架 

分 类 号：TU378[建筑科学—结构工程]