剪力钉力学性能试验研究与数值分析  

Experimental Study and Numerical Analysis of Mechanical Properties of Studs

作　　者：黄彩萍[1] 马强[1] 郑舟军[2] 谭燕[1] 

机构地区：[1]湖北工业大学土木工程与建筑学院,武汉430068 [2]中铁大桥局集团武汉桥梁科学研究院有限公司,武汉430034

出　　处：《武汉理工大学学报（交通科学与工程版）》2015年第3期596-600,共5页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家自然科学基金项目资助(批准号:51208187;51408203)

摘　　要：剪力钉是目前国内外最广泛应用于组合结构的剪力连接件,其性能直接影响到钢-混凝土组合结构的承载力和各项力学性能.针对组合结构中常用的直径22mm剪力钉设计并制作了6个推出试验模型并进行了推出试验,研究分析了推出试件中单枚剪力钉的受力性能、荷载-滑移规律和破坏机理,得出了单枚直径22mm剪力钉的抗剪承载力.通过剪力钉推出试验和数值仿真分析相互验证的方式,找出了合理的钢-混凝土界面及剪力钉的模拟方法,准确地模拟了剪力钉推出试验.In China and abroad ,shear studs are the most widely used in steel‐concrete composite struc‐ture ,and their mechanical behaviors exert direct influences on the bearing capacity and mechanical properties of steel‐concrete composite structure .In the article ,the reinforced concrete specimen with 22mm‐diameter single shear stud ,commonly used in steel‐concrete composite structure ,was designed and prefabricated for its push‐out test .In light of the push‐out test ,the mechanical characteristic , load‐slippage rule and failure mechanism of single shear stud in the specimen were studied and ana‐lyzed ,and in addition ,the shear capacity of single shear stud were contained .Furthermore ,a more reasonable numerical analysis method ,verified by the experiments ,was studied in the paper so as to simulate the mechanical behaviors of the interface between steel studs and concrete accurately .

关 键 词：剪力钉 推出试验 破坏机理 荷载-滑移规律 抗剪承载力 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]