摘要
以崇左市崇左大桥为研究对象,在主梁0号块的施工过程中,通过对墩塔梁固结结构体系的分析和研究,采用预留后浇带湿接缝,横、竖向分块分次浇筑混凝土的施工方法,大幅降低了混凝土现浇箱梁的横向收缩带来的不利影响,保证了工程施工质量,对类似工程有一定的参考借鉴价值。
Taking the Chongzuo Bridge as the research object, during the construction of main girder No. 0 block, the pier tower girder fixed structure system was analyzed. The construction methods were adopted by reserving post-pouring belt as a wet joint, pouring concrete within each block and phase in transverse and vertical directions, which greatly reduced the negative effect caused by transverse shrinkage of cast-in-place concrete box girder, and ensured the quality of engineering construction. It could provide certain reference value for similar projects.
作者
杨维威
Yang Weiwei(China Railway 19th Bureau Group Co. Ltd. , Beijing 100176, China)
出处
《铁道建筑技术》
2018年第5期41-43,54,共4页
Railway Construction Technology
基金
中铁十九局集团有限公司科技研究开发计划项目(17-5A)
关键词
大吨位
墩塔梁固结结构体系
箱梁
0号块
large tonnage
consolidation structure system of pier tower beam
box girder
No. 0 block