中南大学学报（自然科学版）2018，Vol.49Issue(1)：226-237,12.DOI:10.11817/j.issn.1672-7207.2018.01.029
方钢管混凝土柱-钢梁外环板式节点抗剪性能
Shear performance of square concrete-filled steel tubular column to steel beam joint with external diaphragm
摘要
Abstract
Detailed finite element analysis (FEA) model was established to investigate the shear performance of square concrete-filled steel tubular (CFST) column to steel beam joint with external diaphragm under seismic loading on the basis of the size of the joint in test. The material non-linearity, the damage degradation of concrete under cyclic loading and the interaction between steel and concrete were considered in this model. Experimental result was compared to validate the feasibility of this model in simulating the behavior of the composite joints in cyclic loading. Simultaneously, parametric studies were carried out to study the influence of the following parameters on the shearing capacity and deformation in panel zone: ratio of width to thickness of column, the concrete strength of panel zone, the axial load ratio of the column and the ratio of depth to width of panel zone. Eventually, a shear force-deformation restoring-force model of panel zone in composite joints was proposed. The results show that the restoring-force model is practical and can provide practical basis for engineering design.关键词
方钢管混凝土柱-钢梁外环板式节点/有限元分析/钢筋混凝土楼板/抗剪性能Key words
concrete filled steel tubular (CFST) column-steel beam joint with external diaphragm/finite element analysis (FEA)/reinforced concrete (RC) slab/shear performance分类
建筑与水利引用本文复制引用
别雪梦,李召,管文强,杜国锋..方钢管混凝土柱-钢梁外环板式节点抗剪性能[J].中南大学学报（自然科学版）,2018,49(1):226-237,12.基金项目
国家自然科学基金资助项目(51778064, 51378077) （51778064, 51378077）
湖北省自然科学基金(创新群体)资助项目(2015CFA029, 2016CFA022) （创新群体）
中国石油科技创新基金资助项目(2016D-5007-0605) (Projects(51778064, 51378077) supported by the National Natural Science Foundation of China （2016D-5007-0605）
Projects (2015CFA029, 2016CFA022) supported by the Natural Science Foundation of Hubei Province (Innovation Group) （2015CFA029, 2016CFA022）
Project (2016D-5007-0605) supported by Petroleum Science and Technology Innovation Foundation of China) （2016D-5007-0605）
