轻钢轻混凝土组合柱粘结滑移性能研究  

Study on bond-slip behavior in lightweight steel and lightweight concrete composite column

作　　者：赵仕兴 樊秦川 张兆强[3] 彭敏 李岩 Zhao Shixing;Fan Qinchuan;Zhang Zhaoqiang;Peng Min;Li Yan(Sichuan Provincial Architectural Design and Research Institute Co.Lid,Chengdu 610017,China;Complex Structure Design and Research Center,Sichuan Provincial Architectural Design and Research Institute Co.Ltd,Chengdu 610017,China;School of Civil Engineering and Architecture,Southwest University of Science and Technology,Mianyang 621010,China)

机构地区：[1]四川省建筑设计研究院有限公司,四川成都610017 [2]四川省建筑设计研究院有限公司复杂结构设计研究中心,四川成都610017 [3]西南科技大学土木工程与建筑学院,四川绵阳621010

出　　处：《建筑科学》2022年第9期151-157,182,共8页Building Science

基　　金：四川省科学技术厅重点研发项目(2020YFS0061)。

摘　　要：本文通过10个轻钢轻混凝土短柱试件的拉拔试验,研究了轻钢轻混凝土组合柱的粘结滑移性能,分析了几形与矩形轻钢截面及抗剪键形式对其粘结滑移性能的影响。结果表明:几形截面轻钢试件的峰值拉拔荷载及粘结性能均优于矩形截面试件;矩形截面轻钢试件对抗剪键依赖性较大,设置抗剪键后能够充分发挥轻钢的抗拉强度,峰值拉拔荷载随轻混凝土强度等级的增加有所提高,滑移位移也有小幅改善。In this paper, the bond-slip behavior of lightweight steel and lightweight concrete composite column is studied through the pull-out test of 10 lightweight steel and lightweight concrete composite stub columns. The effects of Ω-shaped and rectangular lightweight steel sections and shear key on the bond-slip behavior are analyzed. the results show that the peak pull-out load and bond properties of Ω-shaped section lightweight steel specimens are better than those of rectangular section specimens;the rectangular section lightweight steel specimen is highly dependent on the shear key, and the tensile strength of lightweight steel can be brought into full play after setting the shear key;the peak pull-out load increases with the increase of the strength grade of lightweight concrete, and the slip displacement also improves slightly.

关 键 词：轻钢轻混凝土 拉拔试验 粘结滑移性能 抗剪键 拉拔荷载-位移曲线 

分 类 号：TU317[建筑科学—结构工程]