钢筋混凝土十字形柱-板柱连接冲切性能试验研究  

Experimental investigation on behavior of reinforced concrete slab-column connections with columns of cross-shaped section

作　　者：黄承逵[1] 刘文[1] 

机构地区：[1]大连理工大学海岸和近海工程国家重点实验室,辽宁大连116024

出　　处：《大连理工大学学报》2005年第4期580-586,共7页Journal of Dalian University of Technology

摘　　要：进行了6个十字形柱-板柱连接(其中3个未配置、3个配置了抗冲切锚栓或箍筋)和2个对比方柱-板柱连接的冲切试验,研究了异形柱-板柱连接的冲切受力特性,同时将锚栓和箍筋的抗冲切性能进行了对比.试验结果表明,与方柱-板柱连接试件相比,在柱截面积相同的情况下,异形柱-板柱连接试件具有较高的抗冲切承载力.抗冲切钢筋可以有效地提高板的冲切承载力和延性.在改善延性方面,锚栓比箍筋更有效.另外,将国外几个主要规范ACI318、BS8110及MC90关于非矩形荷载面冲切临界截面周长的规定进行了比较,从试验结果看,规范ACI318的取法更合理.Experimental tests on six slab-column connections with cross-shaped section columns,（three without shear reinforcement, and the remainders with stud shear reinforcements or stirrups）and two relative slab-column connections with square columns were carried out to research into the punching shear of the connections strength and compare the punching shear strength of stud and stirrups. Test results reveal that with the same area of the column section, the punching shear strength of the connections with nonrectangular columns is greater than that of the connections with square columns, and shear reinforcement can significantly enhance the strength and ductility of the connections with nonrectangular columns. Especially, stud shear reinforcement is more efficient than stirrups in slab. Besides, test results verified that provisions on the critical perimeter according to the code of ACI 318 are more reasonable than European Codes.

关 键 词：异形柱 十字形柱 钢筋混凝土板 板柱连接 冲切 箍筋 锚栓 

分 类 号：TU375[建筑科学—结构工程]