摘要
装配式混凝土（RC）板-钢柱连接节点结合了钢结构良好的延性、耗能和机械加工性能,在无梁楼板与方钢管柱连接处周围空出适当间隙,采用工字钢伸臂梁段在间隙中端板螺栓连接,在荷载作用下造成了工字钢伸臂梁段先于RC板破坏,形成一种装配式板柱连接节点。为研究该节点冲切承载性能,完成了5个ABAQUS数值模型计算。变化柱座伸臂梁段工字钢腹板厚度、翼缘厚度和柱翼缘环板加劲肋宽度等影响参数,获得节点破坏模式、应力分布、冲切荷载-位移曲线和螺栓受力性能,分析该节点静力冲切承载性能。结果表明：装配式RC板-钢柱新型连接节点可实现良好的抗冲切性能,并呈现出较好的延性。
The prefabricated reinforced concrete（RC） slab to steel column new connection has advantages in ductility,energy dissipation and mechanical working property. A suitable gap at the connection of the flat slab and the square steel tube column was left,and the cantilevered I-beam section was connected in the gap by bolts,which resulted in the first failure of the cantilevered I-beam section under loads and a prefabricated RC slab to steel column connection was formed. In order to study the punching shear behavior of the slab-column connection,five numerical models were calculated by ABAQUS. The influence factors of the cantilevered I-beam of the column base were investigated,such as the web thickness,flange thickness,and the stiffening rib width of the ring plate of the column flange. The failure mode,stress distribution,tension and shear force of the bolts,punching shear capacity versus vertical displacement curves were presented to investigate the static punching shear performance. The results showed that the prefabricated RC slab to steel column new connection has a favorable punching behavior with an improved ductility.
作者
张爱林
马晓飞
刘学春
ZHANG Ailin;MA Xiaofei;LIU Xuechun(Beijing Engineering Research Center of High-Rise and Large-Span Prestressed Steel Structure, Beijing University of Technology, Beijing 100124, China;Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture, Beijing 100044, China)
出处
《工业建筑》
CSCD
北大核心
2018年第5期24-29,36,共7页
Industrial Construction
基金
国家重点研发计划(2016YFC0701201)
关键词
板柱节点
装配式
冲切承载性能
数值分析
slab-column connection
prefabricated
punching shear resistance
numerical analysis
