建筑抗震支吊架斜撑连接构件的拉伸破坏试验研究  

Experimental Study of Tensile Failure on Seismic Connecting Components of Inclined Struts of Hanging Brackets

作　　者：别亦白 刘文白 谢文远 孔戈 高建卫 Bie Yibai;Liu Wenbai;Xie Wenyuan;Kong Ge;Gao Jianwei(CCCC First Harbor Consultants Co.,Ltd.,Tianjin 300222,China;Shanghai Zhongcai Engineer Test Co.,Ltd.,Shanghai 200120,China;College of Ocean Environment and Engineering,Shanghai Maritime University,Shanghai 201306,China)

机构地区：[1]中交第一航务工程勘察设计院有限公司,天津300222 [2]上海海事大学海洋科学与工程学院,上海201306 [3]上海众材工程检测有限公司,上海20012

出　　处：《港工技术》2018年第5期49-53,共5页Port Engineering Technology

基　　金：国家自然科学基金项目(51078228);国家海洋公益性行业科研专项经费项目(201105024-5)

摘　　要：针对工程中使用的抗震支吊架斜撑构件,在材料拉伸试验机上进行拉伸试验,采用了一次加载破坏和往复加载破坏的两种试验模式,来观察构件的破坏形态,测试构件的荷载-位移曲线。试验表明,抗震连接构件的薄弱环节为抗震连接构件与C型钢的连接部位;抗震连接构件的安装角度在30°～60°范围内,安装角度对其承载能力和变形没有太大的影响。通过对荷载位移曲线的分析,得到了抗震连接构件的线变形承载能力和等效刚度系数。In view of the seismic connecting components of inclined struts of hanging brackets used in the projects, a tensile test has been carried out by using the material tensile tester. The failure state and load displacement curve of the components can be obtained by adopting two kinds of testing modes including direct loading failure and reciprocating loading failure. The test results show that the weak point of a seismic connection component is the joint between the components and C-shaped steel. The installation angle within the range of 30° - 60° has little influence on the bearing capacity and deformation of the components. The load displacement curve is analyzed, which leads to the linear deformation bearing capacity and equivalent stiffness coefficient of the seismic connecting components.

关 键 词：抗震支吊架 抗震连接构件 拉伸试验 荷载-位移曲线 等效刚度系数 

分 类 号：TU74[建筑科学—建筑技术科学] TU352