复杂地形钢—混凝土组合梁施工工艺分析  

Analysis of Construction Technology for External Prestressed Steel-concrere Composite Beam at the Complicative landform

作　　者：胡光全 石胜锁[2] 

机构地区：[1]中铁二局第一工程有限公司,贵阳550003 [2]北京市市政工程设计研究总院,致远监理公司100045

出　　处：《特种结构》2008年第1期99-102,共4页Special Structures

摘　　要：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。The steel-concrete combination beam is one kind of bridge structure which is comparatively new and original, and it has the advantage of easy construction, convenient ,few influence to the underpart traffic, etc. Z1 ring bridge is the way from Capital Airport T1, T2 terminal area to newly-built T3 terminal area. The superstructure of bridge adopts 4 spans over one extracorporeal couplet rope prestressing steel-concrete combination beam. The landform where bridge locates is complicated, so influencing factors of construction are many circle. The paper introduces the construction technology of steel-concrete combination beam.

关 键 词：钢砼组合梁 施工工艺 体外索 门洞 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]