方钢管混凝土柱外置式环梁节点的试验及设计方法研究  

Experimental study on ring beam connections located outside the concrete filled rectangular steel tubular columns

作　　者：吕西林[1] 李学平[1] 

机构地区：[1]同济大学土木工程防灾国家重点实验室,上海200092

出　　处：《建筑结构学报》2003年第1期7-13,共7页Journal of Building Structures

基　　金：上海市科技发展基金资助项目(0270-237010);国家杰出青年基金资助项目(5002581)

摘　　要：本文对自行研制的一种用于方钢管混凝土结构的新型外置式环梁节点,进行了三个环梁纵筋配筋量和形式各不相同的梁柱组合体试件在楼面恒载和侧向低周反复荷载共同作用下的试验。考察了梁柱组合体的宏观受力性能,以及不同配筋形式对环梁节点性能的影响,分析了试验现象及试件中钢筋应变发展规律。初步的试验结果表明,这种新型节点形式可以应用于实际工程。之后,提出了本节点形式应用于工程时初步的设计方法。In this paper, a new type of connection composed of the RC ring beam located outside the concrete filled rectangular steel tubular column was developed. Three beam column assemblage specimens were tested, in which horizontal reversed cyclic load was exerted at the top of the columns accompanied by the simulated storey dead load exerted vertically at the bottom of the column. Structural behavior of the specimens and the influences of different reinforcement were investigated. The strain of the reinforcement in the specimens was also analyzed. The test and analysis show that this new type of connection can be used to engineering practice. According to the experimental and analytical results, primary design method was put forward as well.

关 键 词：环梁节点 梁柱组合体 试验 设计 方钢管混凝土结构 荷载 

分 类 号：TU375.3[建筑科学—结构工程] TU317.1