Inclined concrete-filled SHS steel column to steel beam joints under monotonic and cyclic loading: Experiments
Inclined concrete-filled SHS steel column to steel beam joints under monotonic and cyclic loading: Experiments
复制标题
DOI：
10.1016/j.tws.2012.08.007
复制
发表时间：
2013
影响因子：
6.4
通讯作者：
Wei Li;Lin-Hai Han;Q. Ren
中科院分区：
文献类型：
--
作者：
Wei Li;Lin-Hai Han;Q. Ren
近年来，倾斜钢管混凝土柱在一些建筑工程中得到应用，在建筑物中通常与工字梁或箱形钢梁连接。本文介绍了由倾斜方形空心截面混凝土（SHS）钢柱和箱形钢梁组成的节点的一系列试验结果。该程序总共测试了 24 个模拟外部接缝的样本。研究的参数包括柱类型、接头类型和加载类型。研究了这些复合材料接头的失效模式、强度和刚度退化以及能量耗散。参考现有规范对这些复合材料接头的分类进行了讨论。试验结果表明，在单调荷载下，这些复合材料节点在荷载降至极限强度的85%之前达到了0.04rad以上，并且具有内外隔板的试件表现出最良好的抗震性能。
Inclined concrete-filled steel tubular (CFST) columns have been applied in some construction projects recently, and they are usually connected with either I-shape or box steel beams in buildings. This paper presents a serial of test results of joints consist of inclined concrete-filled square hollow section (SHS) steel columns and box steel beams. A total of 24 specimens modelled as exterior joints were tested in the program. The parameters investigated included the column type, the joint type and the loading type. The failure modes, the strength and stiffness degradation and the energy dissipation of these composite joints were studied. Discussions on classification of these composite joints were made referencing existing codes. The test results showed that these composite joints reached more than 0.04rad before loads dropped to 85% of the ultimate strength under monotonic loading, and the specimens with both internal and external diaphragms exhibited the most favourable seismic performance among these joints.