斜拉扣挂法分离式扣挂系统在钢管拱桥的应用与浅析

当拱桥跨度较大、拱肋节段较多、地形复杂、建筑高度较高时,可以采取缆索吊装—斜拉扣挂法.先在拼装场地将拱肋分段预制,而后利用缆索吊机将拱段吊装就位,并用扣索将其固定,再吊装后续节段直至合龙的一种方法.该法主要特点是适用性强,特别对于跨越峡谷的大跨度钢管混凝土拱桥.本文就张花高速海螺猛洞河大桥分离式扣挂系统在钢管拱桥中的应用进行简单的分析.

The Application and Analyses of Separate Buckle Hang System of Cable-stayed Suspension Method in Steel Tubular Arched Bridge

The cable-shifting and cable-stayed system can be taken in steel tubular arched bridge,when the arch span is larger,arch rib segments are much more,the terrain is more complex and the building height is higher.It is a way to precast arch rib in the assemble site firstly,and hoist arch section in place by cable crane,then fix it and lift subsequent section until the final closure.The main characteristic is high applicability,especially for the large span concrete-filled steel tubular arch bridge across the canyon.The paper simply analyzes about the application of Separate buckle hang system of Zhang high-speed conch fierce hole river bridge in Steel tubular arched bridge.