- 摘 要
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(1 河北工业大学土木与交通学院, 天津 300401; 2 华北理工大学建筑工程学院, 唐山 063210)
[摘要]配置抗剪锚栓是提高板柱节点的抗冲切性能与变形性能的有效手段,为研究抗剪锚栓对板柱节点抗冲切性能的影响规律,对带抗剪锚栓板柱节点抗冲切承载力的计算方法进行对比,建立了带抗剪锚栓板柱节点抗冲切性能分析的1/4结构模型,考虑不同锚栓高度、锚栓半径、锚栓布置方式、锚栓间距、锚栓强度等参数对板柱节点抗冲切性能与变形性能的影响。结果表明:增加锚栓高度、锚栓半径、锚栓强度、增加斜向锚栓(非正交方向)、减小锚栓间距均能提高板柱节点抗冲切承载力和延性性能,反之则降低,其中斜向锚栓(非正交方向)数量变化所产生的影响最为明显。提出了板柱结构中抗剪锚栓布置的优化设计建议,并给出合理的参数取值范围。
[关键词]板柱节点;抗剪锚栓;抗冲切性能;变形性能;锚栓高度;锚栓半径;锚栓布置方式;锚栓间距;锚栓强度
中图分类号:TU398+.1文献标识码:A文章编号:1002-848X(2021)09-0084-08
Analysis and optimization design of punching shear performance of slab-column connections with shear studs
CHE Wenpeng1,2, CHEN Jianwei2, TIAN Wenling1, WANG Zhanwen2
(1 School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China;2 College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan 063210, China)
Abstract:It is an effective method to improve the punching shear performance and deformation performance of slab-column connections by setting shear studs. In order to study the influence law of shear studs on the punching shear performance of slab-column connections, the calculation method of punching shear capacity of slab-column connections with shear studs were compared, a 1/4 structural model was established for the analysis of the punching shear performance of slab-column connections with shear studs, the effects of different parameters including studs height, studs radius, studs arrangement, studs spacing and studs strength on the punching shear performance and deformation performance of slab-column connections were considered. And the results indicate that increasing studs height, studs radius, studs strength, the number of oblique studs (non-orthogonal direction) and decreasing studs spacing can all improve the punching shear capacity and ductility of the slab-column connections, and vice versa. Among them, the influence of the change in the number of oblique studs (non-orthogonal direction) is the most obvious. The optimal design of shear studs arrangement in slab-column structure was proposed, and the reasonable parameter range was given.
Keywords:slab-column connection; shear stud; punching shear performance; deformation performance; studs height; studs radius; studs arrangement; studs spacing; studs strength
*国家自然科学基金项目(51678236)。
作者简介:车文鹏,硕士,讲师,Email:chewenpengcwp@163.com;通信作者:陈建伟,博士,教授,博士生导师,Email:jwchen@ncst.edu.cn。