拱轴线的新型式—悬索线  

A New Type of Arch Axis-Cable Line

作　　者：童林[1] 周兴国 上官兴[3] 

机构地区：[1]长沙交通学院桥梁与结构工程系,湖南长沙410076 [2]徐州市市政设计院,江苏徐州221002 [3]中交第四航务工程勘察设计院,广东广州510230

出　　处：《城市道桥与防洪》2004年第1期27-31,共5页Urban Roads Bridges & Flood Control

摘　　要：基于大跨径或特大跨径等截面拱桥的恒载分布更接近于沿拱轴均匀分布 ,本文推导了拱轴线的新型式—悬索线的拱轴线方程 ,与其它拱轴线型进行了比较 。The distribution of dead load of the arch brid ge with constant section of large span or extra span is more close to even distr ibution along the arch axis, so the paper derives an arch axis equation of a new type of arch axis ? cable line. It makes comparison with other arch axis, then it devices the calculation formula of dead load internal force and influence lin e of non-articulated arch bridge with uniform section taking cable line as arch axis.

关 键 词：拱桥 拱轴线 悬索线 悬链线 拱形参数 恒载内力 影响线 

分 类 号：U448.22[建筑科学—桥梁与隧道工程]