论文部分内容阅读
钢砼组合梁是一种较为新颖的桥梁结构形式,具有施工简便、施工期对下部交通影响小等优点。首都机场T1、T2航站区至新建T3航站区联络线项目的主要工程是1座上跨立交桥,其中Z1匝道桥上跨机场高速度位置上部结构采用4跨1联体外(索)预应力钢-砼组合连续梁,桥位处地形复杂、施工影响因素多。本文介绍该桥钢一砼组合梁施工工艺,供同类工程借鉴。
Steel-concrete composite beam is a novel form of bridge structure, with the advantages of simple construction and little impact on the traffic during the construction period. The main project of the connecting line between the terminal areas of T1 and T2 of the Capital Airport and the new T3 terminal area is one overpass. Among them, the Z1 ramp bridge has a 4-span, 1-in-1 (external) cable superstructure Steel - concrete combination of continuous beams, bridge top terrain complex, construction of many influencing factors. This article describes the steel construction of a concrete composite beam beam for similar projects for reference.