销接式索夹几何参数精确计算方法研究  

Research on the Accurate Calculation Method of Geometric Parameters of Pin-jointed Cable Clamps

作　　者：杨洋[1] 曾瑞祥[2] YANG Yang;ZENG Ruixiang(China Merchants Chongqing Communications Technology Research&Design Institute Co.,Ltd.,Chongqing 400067;CCCC Second Harbor Engineering Company Ltd.,Wuhan 430040)

机构地区：[1]招商局重庆交通科研设计院有限公司,重庆400067 [2]中交第二航务工程局有限公司,武汉430040

出　　处：《公路交通技术》2022年第6期51-57,共7页Technology of Highway and Transport

摘　　要：为达到桥梁景观效果,越来越多的悬索桥采用空间缆索设计形式,其主缆和吊杆处于三维空间中,索夹在设计和施工阶段产生的误差,会使结构不能在理想成桥状态下工作,长期作用下,可引起吊杆疲劳断裂。为此,采用空间向量几何和柔性索计算方法,研究销接式索夹的几何参数计算。研究结果表明:空间向量几何和柔性索计算方法用于索夹参数计算,可降低索夹几何误差,满足桥梁工程设计要求。For better bridge landscape effect,more and more suspension bridges are designed in spatial cable form.Its main cables and hangers are in three-dimensional space,the deviation generated in the design and construction of the cable clamps can not make the structure work in the finished bridge state,which can cause fatigue fracture of hangers under long-term action.In this paper,space vector geometry and catenary cable calculation methods will be used to accurately calculate the geometric parameters of the pin-jointed cable clamps.The research results show that the space vector geometry and catenary cable calculation method can reduce the geometric deviation of the clamps and conforms to the design requirements of bridge engineering.

关 键 词：桥梁工程 悬索桥 空间缆索 销接式索夹 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]