波形钢腹板PC组合箱梁双挂篮合龙技术  

Double Hanging Basket Closure Technology of PC Composite Box Girder with Corrugated Steel Webs

作　　者：王兵 WANG Bing

机构地区：[1]上海城建市政工程(集团)有限公司,上海市200333

出　　处：《城市道桥与防洪》2021年第4期125-127,共3页Urban Roads Bridges & Flood Control

摘　　要：波形钢腹板-PC(预应力混凝土)组合箱梁起源于20世纪80年代的法国,20世纪90年代初为日本接受并大力推广,至今已成为日本高速公路的推荐桥型。近年来,国内波形钢腹板PC箱梁由开始的中小跨径逐步运用于大跨度连续梁桥与斜拉桥,常用的施工方法有支架法、悬臂法和顶推法。而合龙段施工作为挂篮悬臂施工的最关键的一道工序,直接关系到主梁线性和桥梁整体受力状态。Corrugated steel web-PC(prestressed concrete)composite box girder originated in France in the 1980s,was accepted and popularized in Japan in the early 1990s,and has become the recommended bridge type for Japan's expressways now.In recent years,the domestic corrugated steel web PC box girder has been gradually applied to the long-span continuous beam bridge and cable-stayed bridge from the small and medium span at the beginning,and the commonly used construction methods are bracket method,cantilever method and push method.The construction of the closure section,as the most critical working procedure of the cantilever construction,is directly related to the linearity of the main beam and the overall stress state of the bridge.

关 键 词：斜拉桥 波形钢腹板PC组合箱梁 双挂篮 合龙 

分 类 号：U445[建筑科学—桥梁与隧道工程]