预应力锚索梁在悬索吊装系统中的设计应用

Prestressed anchor beam in suspension design of hoisting system application

悬索吊装系统作为拱桥拱肋施工的常用施工设备,具有施工简单、技术成熟和设备投入少等特点,特别适用于山区拱桥的施工。悬索吊装系统通过主缆受力传递至锚碇系统,因此锚碇系统设计的安全性将直接影响整个系统的安全,在"V"形狭谷地带设置一般的重力式或桩式锚比较困难,在充分利用两岸地形节约成本的前提下,通过创新性地将预应力锚索梁应用在悬索吊装系统中很好地解决了这一问题。同时在锚碇系统中又增加了一种更简便、施工快捷、安全性更高的锚碇装置,本文重点对预应力锚索梁系统进行了全面的介绍。

The commonly used construction equipment hoisting system as the suspension arch bridge construction,has the advantages of simple construction. The technology is mature,needs less equipment investment and is especially suitable for mountain arch bridge construction. Cable hoisting system through the main cable force is transferred to the anchorage system,so securitydesign of anchorage system will directly affect the safety of the whole system,shaped valley area of anchor pile gravity type or is generally more difficult in＂V＂. We fully use cross-strait terrain cost saving conditions,innovation the prestressed anchor cable in the suspension hoisting system is a very good solution to this problem,at the same time,adding an anchor device is more simple,quick construction,higher safety in anchorage system. This paper focuses on prestressed anchor cable beam system.