齐鲁黄河大桥尼尔森体系吊杆施工技术探讨  

Construction Technology for Nielsen System Suspenders of Qilu Yellow River Bridge

作　　者：刘文华 张日亮 李珊 余丹 LIU Wenhua;ZHANG Riliang;LI Shan;YU Dan(Liuzhou OVM Machinery Co.,Ltd.,Liuzhou Guangxi 545006,China;Guangxi Science&Technology Normal University,Laibin Guangxi 546199,China)

机构地区：[1]柳州欧维姆机械股份有限公司,广西柳州545006 [2]广西科技师范学院,广西来宾546199

出　　处：《工程质量》2023年第5期70-73,共4页Construction Quality

摘　　要：拱桥采用斜吊杆代替竖直吊杆时统称尼尔森体系拱桥。与常见的直吊杆拱桥相比,用斜吊杆代替直吊杆会大幅度地提高结构的竖向刚度,减小主拱和系杆的弯矩和剪力;尼尔森体系的网状吊杆结构,吊杆之间相互交叉,穿索有干涉,索和水平面有一个角度,不好安置千斤顶等张拉设备,施工难度较大。通过齐鲁黄河大桥吊杆的吊装、张拉与调索施工过程为研究探讨对象,为该类桥梁施工提供一种参考。When the arch bridge uses inclined suspenders instead of vertical suspenders,it is collectively referred to as Nielsen system arch bridge.Compared with the common vertical suspender arch bridge,using inclined suspenders instead of vertical suspenders will greatly improve the vertical stiffness of the structure and reduce the bending moment and shear force of the main arch and tie bar;For the mesh suspender structure of Nielsen system,the suspenders cross each other,there is interference in threading the cable,and the cable has an angle with the horizontal plane.It is difficult to place tensioning equipment such as Jack,so the construction is difficult.Taking the construction process of suspender hoisting,tensioning and cable adjustment for Nielsen System of Qilu Yellow River Bridge as the research object,it provides a construction reference for the construction of this kind of bridge.

关 键 词：尼尔森体系 吊杆 张拉 施工 

分 类 号：U448.22[建筑科学—桥梁与隧道工程]