传统风格建筑钢结构双梁-柱中节点抗震性能试验研究及有限元分析  

EXPERIMENTAL STUDY AND NUMERICAL ANALYSIS ON ASEISMIC PERFORMANCE OF STEEL DOUBLE-BEAMS-COLUMN INTERIOR-JOINTS IN TRADITIONAL STYLE BUILDING

作　　者：薛建阳[1] 吴占景[1] 隋龑[1] 葛鸿鹏[2] 吴琨[2] 

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055 [2]中国建筑西北设计研究院有限公司,陕西西安710018

出　　处：《工程力学》2016年第5期97-105,共9页Engineering Mechanics

基　　金：国家自然科学基金项目(51208411);中建股份科技研发课题项目(CSCEC-2012-Z-16);陕西省重点科技创新团队计划项目(2014KCT-31);西安建筑科技大学创新团队发展计划项目

摘　　要：设计并制作了4个比例为1∶2的传统风格建筑钢结构双梁-柱中节点模型,通过低周反复荷载试验研究其抗震性能,得到了传统风格建筑钢结构双梁-柱中节点的破坏形态、滞回特性、延性等指标。研究表明:传统风格建筑钢结构双梁-柱中节点试件在加载过程中形成了上、下2个小核心区和中间短柱三个区域,其典型破坏形态是节点下核心区在压剪复合应力作用下的剪切破坏。试件变形以下核心区最大,其次为中间短柱。基于试验研究,利用有限元软件ABAQUS对其进行了非线性数值模拟分析,得到的节点破坏形态、应力分布及滞回曲线与试验结果较为吻合。Four specimen models in 1/2 scale of steel double-beams-column interior joints of a traditional style building were designed and fabricated for a low cyclic reversed loading test. The failure mode, hysteretic performance, and ductility of the joints were obtained from the experiment. It is shown that there are 3 small core areas, namely an upper core area, a lower core area and a middle short column, appeared in the steel double-beams-column in the traditional style building during loading. The failure mode of the doublebeams-column joints is the shear failure when they are subjected to axial load, bending moment and shear force in the core area. The maximum deformation firstly occurred in the lower core area, secondly in the middle short column. Based on the experiment, the nonlinear numerical simulation was conducted using the ABAQUS software. The computational results such as the failure modes, stress distributions and hysteretic loops are in a good agreement with the experimental ones.

关 键 词：传统风格建筑 钢结构双梁-柱中节点 低周反复加载 有限元分析 力学性能 

分 类 号：TU391[建筑科学—结构工程] TU352.11