3.5%纵坡上坡架桥机架梁施工技术  

Construction Technology of Erecting Bridge Frame Beam on 3.5% Longitudinal Slope

作　　者：王俊超 刘涛 马宏宇 WANG Junchao;LIU Tao;MA Hongyu(No.1 Engineering Co.,Ltd.of FHEC of CCCC,Beijing 102205,China)

机构地区：[1]中交一公局第一工程有限公司,北京102205

出　　处：《施工技术》2020年第S01期1268-1270,共3页Construction Technology

摘　　要：兴业大道跨线桥采用42m预制简支小箱梁,桥梁上坡坡度达3.5%。如何在较大坡度上运用常规架桥机安全、快捷、高效地进行箱梁架设,尚无类似经验借鉴。通过工程实践,自主创新的对现有的不满足此类工况的架桥机进行局部改造,并运用相关计算软件进行受力分析,确保了施工安全,加快了施工进度,取得了较好的效益。The overpass bridge of Xingye Avenue adopts 42 m precast simply supported small box girder,and the slope of the bridge is up to 3.5%.There is no similar experience on how to use conventional bridge erecting machine to erect box girder safely,quickly and efficiently on a large slope.Through the engineering practice,the existing bridge erecting machine which does not meet this kind of working conditions is reformed independently,and the stress analysis is carried out by using relevant calculation software,which ensures the construction safety,speeds up the construction progress and achieves good benefits.

关 键 词：箱梁 架桥机 改造 过孔 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]