钢筋混凝土十字形异形柱-板柱连接抗弯承载力的研究  

Investigation of bearing capacity to flexure of reinforced concrete slab-column connections on columns with cross-shaped cross-section

作　　者：刘文 黄承逵[2] 杜永峰[1] 

机构地区：[1]兰州理工大学防震减灾研究所,甘肃兰州730050 [2]大连理工大学海岸与近海工程国家重点实验室,辽宁大连116024

出　　处：《兰州理工大学学报》2006年第1期134-137,共4页Journal of Lanzhou University of Technology

基　　金：甘肃省科技攻关项目(GS022-A52-063)

摘　　要：为了研究柱截面形式为异形柱的板柱连接冲切受力性能,进行了柱截面形状分别为3种典型异形柱(十字形、T形和L形)和对比方柱所构成的板柱连接的冲切特性试验.根据所进行的柱截面为十字形异形柱-板柱连接冲切特性的试验成果,提出了十字形柱-板柱连接的屈服线形式,并应用屈服线理论,导出了十字形异形柱-板柱连接的抗弯承载力表达式.该式形式简单、应用方便,其理论计算值与试验值比较,符合较好.结果可供类似柱形的板柱连接强度计算时参考.To investigate the punching shear behavior of slab-column connections with nonrectangular columns, an experiment on the three specimens of column with three kinds of typical special-shaped cross-section （cross-shaped section, T-shaped section and L-shaped section）, which were connected with reinforced , concrete slabs, and reference specimens with square columns was conducted. Based on the experimental resuit of the characteristics of reinforced concrete slabs with cross-shaped column and the yield-line theory, the yield-line pattern of reinforced concrete slab-column connection with cross-shaped column was presented and the flexural strength formula was derived. This formula is simple in form and easy to use. It is shown that a significantly better agreement of theoretical computations with the experimental results of the specimens in flexural failure is obtained, so that the result provides a reference for the strength computation of slab-column connection with similar column.

关 键 词：异形柱 钢筋混凝土板 板柱连接 抗弯承载力 屈服线理论 

分 类 号：TU375.2[建筑科学—结构工程]