漫湾特大桥矮墩大弧面连续梁施工技术  

Construction Technology of Large Curved Continuous Beam on Short Pier of Manwan Bridge

作　　者：张家鹏 ZHANG Jiapeng(The 2nd Engineering Co.,Ltd.of China Railway 22nd Bureau Group,Beijing 100043,China)

机构地区：[1]中铁二十二局集团第二工程有限公司,北京100043

出　　处：《北方建筑》2024年第1期83-86,共4页Northern Architecture

摘　　要：本文以漫湾特大桥4×28 m有砟轨道预应力混凝土道岔连续梁为研究对象,采用“土牛法”支撑体系构造、大截面弧形模板安装加固、大面积混凝土一次性浇筑施工要点控制等一系列技术措施。简化了连续梁的支撑体系及模板体系,确保了施工中几项要点的顺利完成,保证了桥梁工程的安全、质量,节约了工期、成本,同时也为相似工程中矮墩连续梁的施工提供一定参考。This paper takes the continuous beam of 4×28 m ballasted track prestressed concrete turnout of Manwan Bridge is taken as the research object,and adopts a series of technical measures,such as“native cattle method”support system construction,large section arc formwork installation and reinforcement,large area of concrete one-time pouring construction key control.It simplifies the support system and formwork system of continuous beam,ensures the smooth completion of several key points in construction,ensures the safety and quality of bridge engineering,saves the construction period and cost,and also provides some ideas for reference for the construction of short pier continuous beam in similar projects.

关 键 词：“土牛法”支撑 大截面弧形模板 大面积混凝土 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]