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Installation and construction method of prestressed inhaul cable anti-falling beam of high-pier simply-supported beam bridge
The invention belongs to the technical field of bridge construction, and particularly relates to an installation and construction method for a prestressed inhaul cable anti-falling beam of a high-pier simply supported girder bridge. According to the construction method, through the seven steps of construction preparation, installation of a connecting inhaul cable of the anti-falling beam, fixing of a steel cushion bottom plate, installation of an anti-falling beam fixing part, installation of an anti-falling beam moving part and adjustment of the movement amount, anti-corrosion treatment and installation of a protection cover, the whole span beam body is installed in place, welding of a diaphragm main rib is completed, and a gap where a beam plate wet joint is not constructed is formed; the steel bar suspension cage, the gap between the two transverse partition beams and the top of the cover beam are used as a working procedure construction platform, compared with a lifting truck, the working platform is stable, installation quality and safety are guaranteed due to the fact that the working platform is not affected by strong wind, rapidness is achieved, the construction period is effectively shortened, the number of equipment lease, auxiliary tools and auxiliary personnel is reduced, meanwhile, secondary carrying cost is reduced, and the working efficiency is improved. And the construction cost is saved. Mechanical waste gas emission and oil leakage are avoided, a working platform does not need to be built, and the surrounding ecological environment is basically not affected.
本发明属于桥梁施工技术领域，具体涉及一种高墩简支梁桥预应力拉索防落梁的安装施工方法。本发明通过施工准备、安放防落梁的连接拉索、固定钢垫底板、安装防落梁固定部、安装防落梁移动部并调节移动量、防腐处理和安装保护罩七个步骤，在整跨梁体安装就位、横隔梁主筋焊接完成，而梁板湿接缝尚未施工的空挡，利用钢筋吊笼、两横隔梁间隙及盖梁顶部作为工序施工平台，与升降车相比作业平台较稳定，因不受大风影响，安装质量及安全性得到了保证，且更加快捷，有效缩短了工期，减少了设备租赁、辅助工具、辅助人员数量，同时减少了二次搬运费用，节约了施工成本。本发明无机械废气排放和漏油，无需修筑作业平台，对周边生态环境基本无影响。
Installation and construction method of prestressed inhaul cable anti-falling beam of high-pier simply-supported beam bridge
The invention belongs to the technical field of bridge construction, and particularly relates to an installation and construction method for a prestressed inhaul cable anti-falling beam of a high-pier simply supported girder bridge. According to the construction method, through the seven steps of construction preparation, installation of a connecting inhaul cable of the anti-falling beam, fixing of a steel cushion bottom plate, installation of an anti-falling beam fixing part, installation of an anti-falling beam moving part and adjustment of the movement amount, anti-corrosion treatment and installation of a protection cover, the whole span beam body is installed in place, welding of a diaphragm main rib is completed, and a gap where a beam plate wet joint is not constructed is formed; the steel bar suspension cage, the gap between the two transverse partition beams and the top of the cover beam are used as a working procedure construction platform, compared with a lifting truck, the working platform is stable, installation quality and safety are guaranteed due to the fact that the working platform is not affected by strong wind, rapidness is achieved, the construction period is effectively shortened, the number of equipment lease, auxiliary tools and auxiliary personnel is reduced, meanwhile, secondary carrying cost is reduced, and the working efficiency is improved. And the construction cost is saved. Mechanical waste gas emission and oil leakage are avoided, a working platform does not need to be built, and the surrounding ecological environment is basically not affected.
本发明属于桥梁施工技术领域，具体涉及一种高墩简支梁桥预应力拉索防落梁的安装施工方法。本发明通过施工准备、安放防落梁的连接拉索、固定钢垫底板、安装防落梁固定部、安装防落梁移动部并调节移动量、防腐处理和安装保护罩七个步骤，在整跨梁体安装就位、横隔梁主筋焊接完成，而梁板湿接缝尚未施工的空挡，利用钢筋吊笼、两横隔梁间隙及盖梁顶部作为工序施工平台，与升降车相比作业平台较稳定，因不受大风影响，安装质量及安全性得到了保证，且更加快捷，有效缩短了工期，减少了设备租赁、辅助工具、辅助人员数量，同时减少了二次搬运费用，节约了施工成本。本发明无机械废气排放和漏油，无需修筑作业平台，对周边生态环境基本无影响。
Installation and construction method of prestressed inhaul cable anti-falling beam of high-pier simply-supported beam bridge
一种高墩简支梁桥预应力拉索防落梁的安装施工方法
WANG GUANPING (author) / DANG JUNPING (author) / LI JIANGANG (author) / AI SHIJIE (author) / RAN JIANGUO (author) / CHENG FUQIANG (author) / SONG DONGLIANG (author)
2022-12-16
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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