（1 四川省建筑设计研究院, 成都 610000； 2 四川省建筑工业化工程技术研究中心， 成都 610000; 3 重庆大学土木工程学院， 重庆 400045； 4 中机中联工程有限公司， 重庆 400039；5 中国建筑西南设计研究院有限公司设计十院, 重庆 400020）

［摘要］为研究栓钉用量对大长宽比型钢混凝土短柱抗震性能的影响，对不同栓钉用量的3个型钢混凝土短柱进行抗震性能试验研究。研究结果表明：增加栓钉的用量对型钢混凝土短柱的水平承载力影响不大，但可增加型钢与混凝土之间的摩擦耗能面积，提高构件的耗能能力；此外，不论栓钉设置与否，型钢混凝土短柱均具有良好的延性和塑性变形能力，但栓钉用量的增加会加剧构件裂缝发展，降低构件延性。因此，建议型钢混凝土短柱设计时，可适当放宽栓钉用量，间距100mm以上为宜。

［关键词］型钢混凝土短柱； 栓钉用量； 抗震性能； 大长宽比

中图分类号：TU375文献标识码：A文章编号：1002-848X(2016)23-0046-04

Study on the stud amount impact on the seismic performance of steel-reinforced concrete short column with large length-width ratio

Zhang Yiping1，2, Zhang Chuan3, Zhang Chunlei1,2, Zhou Yang4， Zhong Huajun5

(1 Sichuan Provincial Architectural Design and Research Institute, Chengdu 610000, China； 2 Sichuan Engineering and Technology Research Center of Architecture Industrialization, Chengdu 610000, China; 3 School of Civil Engineering, Chongqing University, Chongqing 400045,China; 4 CMCU Engineering Corporation, Chongqing 400039,China; 5 No.10 Design Institute, China Southwest Architectural Design and Research Institute Co., Ltd., Chongqing 400020， China)

Abstract:In order to study the stud amount impact on the seismic performance of steel-reinforced concrete short column(SRC short columns) with large length-width ratio, seismic performance experiments on three SRC short columns with different stud amounts were carried out. The results show that stud amount has little impact on the horizontal bearing capacity of SRC short columns，but can increase the friction contact area to enhance its energy-dissipating capacity. With or without studs, all the SRC short columns have good ductility and plastic deformation capacity, but the increase of studs can accelerate column crack development and decrease its ductility. So, it is suggested that the studs should be set in the SRC short columns in moderate amount, with 100mm distance above.

Keywords:steel-reinforced concrete short column; stud amount; seismic performance; large length-width ratio

作者简介：章一萍，硕士，教授级高级工程师，Email：cdscsj@qq.com。