摘要
自锚式悬索桥主缆锚固于主梁梁端,节省了庞大的锚碇。主缆发散处的转向及约束构造有散索套和散索鞍2种。结合南昌市洪都大桥的特点,分别比较了采用置于主梁内部的散索套、置于主梁外部的散索套和散索鞍3种构造方案的优缺点。该桥最终选择了置于梁内的散索套方案作为施工方案。
The main cable of self-anchored suspension bridge is tied in the end of main girder with saving large anchor.Two structures such as splay casting and splay saddle are often used to turn and restrict the main cable.Combined with the characteristics of Hongdu Bridge in Nanchang,three structure schemes which are splay castings in the box girder,splay castings out of the box girder and splay saddles are compared in this paper.The plan of splay castings in the box girder is adopted to be the construction plan at last.
出处
《中国市政工程》
2011年第1期24-25,82,共2页
China Municipal Engineering
关键词
自锚式悬索桥
散索套
散索鞍
self-anchored suspension bridge
splay casting
splay saddle
