贯穿式方钢管混凝土-H型钢梁柱节点抗震性能分析  

Seismic Performance Analysis for Joints of Clapboard-through-type Concrete-filled Square Steel Tube Column and H-shaped Steel Beam

作　　者：阎石[1] 吴禹墨 陈鑫[1] 綦宝晖 刘福学 YAN Shi WU Yumo CItEN Xin QI Baohui LIU Fuxue(School of Civil Engineering, Shenyang Jianzhu University, Shenyang, China, 110168 Building Research In- stitute, Angang Construction Group, Anshan, China, 114001)

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168 [2]鞍钢建设集团建筑研究所,辽宁鞍山114001

出　　处：《沈阳建筑大学学报（自然科学版）》2017年第2期193-202,共10页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家自然科学基金项目(51278313);辽宁省自然科学基金项目(2015020595);鞍钢建设集团2011年科研项目

摘　　要：目的分析不同参数对贯穿式方钢管混凝土-H型钢梁节点的抗震性能的影响.方法采用ABABQUS软件对不同参数的该类节点分别进行单调加载及往复加载,并与试验结果进行对比,研究轴压比、钢管壁厚度、隔板厚度及外伸长度等参数对该类节点受力性能的影响规律.结果塑性铰一般出现在梁端且与隔板的外伸尺寸密切相关,"滞回环"很饱满.通过对比分析,笔者建议节点轴压比应小于0.4,隔板的外伸长度取值范围60~100 mm,隔板厚度取8~10 mm.结论节点的抗震性能的增强是随着隔板外伸长度的增加而增加的,虽然隔板厚度对组合节点的抗震性有一定程度的影响,但作用效果不明显.轴压比越大,位移延性和承载力下降越快.另一方面随着钢管壁厚度的增加节点的耗能也在不断增加.The seismic performance analysis was conducted on the joints of clapboard-through-type concrete-filled square steel tube column and H-shaped steel beam to investigate the influence of overhang length of the diaphragm,thickness of the diaphragm,thickness of the steel tube,and axial load ratio.Nonlinear finite element model was used to analyze the seismic performance and failure mode of the connection with different parameters under the monotonic loading and the cyclic loading using ABAQUS,respectively.The numerical results show that the kind of joint has better bearing capacity and seismic ductility,the plastic hinge depended on the overhang length of the dia-phragm is always generated at the end of the beam,and the area of hysteretic loop is much greater.We can conclude that as increasing the diaphragm overhang length,the seismic performance of the joint can be gradually enhanced.The diaphragm thickness has a certain influence on the seismic performance with unobvious effect.The bearing capacity and the displacement ductility of the joint obviously decrease with the increase of the axial load ratio,and the energy consumption capacity increase with change of the thickness of the steel tube.

关 键 词：方钢管混凝土 贯穿式梁柱节点 有限元分析 抗震性能 

分 类 号：TU398[建筑科学—结构工程]