劲性梁—钢管砼柱不穿心节点钢管壁受力与梁端变形特点  

Mechanic Characteristic of Steel Tube and Deflection Property of Beam in Steel Reinforced Concrete Beam-Concrete-filled Steel Tube Joint

作　　者：郭远翔[1] 蔡健[2] 苏恒强[2] 黄炎生[2] 

机构地区：[1]华南理工大学建筑设计研究院,广东广州510640 [2]华南理工大学土木工程系,广东广州510640

出　　处：《广东工业大学学报》2006年第2期109-113,共5页Journal of Guangdong University of Technology

基　　金：广东省自然科学基金资助项目(990565;0205)

摘　　要：主要针对梁端传递弯矩、不同加载方式、管壁厚度等对钢梁不穿心的劲性梁-钢管混凝土柱节点的节点区钢管壁受力特点的影响,以及劲性梁梁端的变形特点进行试验研究.试验结果表明,节点区钢管壁的局部变形随梁端传递弯矩的增大而增大,施加弯矩时的初始轴压越大,变形越大.但梁端传递弯矩对节点区的影响只局限于局部,节点区的轴压承载能力和工作性能基本不受影响.The test research work of CFST（concrete-filled steel tubular） joints is focused on the following factors： bending moment transferred way of beam, loading mode, the influence of thickness of steel tube, and the deflection property of beam. The result shows that deformation of steel tube nearing joint increases with the increment of beam end＇ s moment. The deformation of steel tube also increases with the increment of initial axial compression when the moment is applied. But the influence is limited to a local zone. The axial beating capacity of joint is not influenced basically by the above factors.

关 键 词：钢管混凝土 节点 弯矩 轴力 受力特点 

分 类 号：TU398[建筑科学—结构工程]