装配式钢框架预制楼板栓钉抗剪连接性能试验研究  

EXPERIMENTAL RESEARCH ON THE PERFORMANCE OF STUD SHEAR CONNECTIONS IN PRECAST STEEL FRAMES

作　　者：陈学森[1,2] 施刚[1,2] 王喆 王琼 张宏亮 

机构地区：[1]土木工程安全与耐久教育部重点实验室,清华大学土木工程系,北京100084 [2]清华大学北京市钢与混凝土组合结构工程技术研究中心,北京100084 [3]中国建筑标准设计研究院,北京100048 [4]山东鲁帆建设科技有限公司,山东滨州256216

出　　处：《钢结构》2017年第8期37-41,共5页Steel Construction

基　　金：国家自然科学基金项目(51478244);国家自然科学基金优秀青年基金项目(51522806)

摘　　要：在预制装配式多层钢框架中,为方便在预制楼板与钢框架梁之间采用栓钉连接,可以先在预制楼板上栓钉对应位置留孔,现场吊装后再浇筑灌浆料补孔。通过3个栓钉抗剪连接试件在单调荷载下的推出试验,对比了整浇混凝土楼板和留孔后浇灌浆料的预制混凝土楼板中采用栓钉抗剪连接的性能差异。试验结果表明:在栓钉群受剪时各排栓钉承担的剪力差异明显;相比于栓钉与整浇混凝土楼板的连接,栓钉与留孔后浇灌浆料的预制楼板连接的抗剪刚度明显减小,滑移变形能力显著增加。验证了留孔后浇灌浆料的预制楼板与栓钉的连接可以满足抗剪要求。When precast concrete slabs are applied in precast steel frames,studs can be used as shear connections between concrete slabs and steel beams if holes were left on the precast slabs around the position of the studs and filled with grout in the field after fixed. Three push-out specimens of stud connections were tested,and the performance of stud shear connections in whole-cast slabs and that in precast slabs with post-cast holes were compared. According to the results,studs in different rows shared different shear force when they worked as a group,and the sliding stiffness of the shear connections in precast slabs with post-cast holes was smaller than that of the shear connections in whole-cast slabs,while the sliding deformability of the shear connections in precast slab was significantly better than that in the whole-cast ones. It was also proved that the stud connections in precast slabs with post-cast holes could meet the requirements of shear resistance.

关 键 词：钢结构 栓钉 预制装配式框架 预制楼板 抗剪连接 试验研究 

分 类 号：TU391[建筑科学—结构工程]