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A platform for research: civil engineering, architecture and urbanism
System transformation construction method of half-through arched girder cooperating steel box connecting arch bridge based on bare arch stability
The invention belongs to a construction method of a half-through arched girder cooperation system steel arch bridge, and particularly relates to a system conversion construction method of a half-through arched girder cooperation steel box connection arch bridge based on bare arch stability. The overall method adopts a first-beam and second-arch construction method, but according to the construction method, the arch rib support dismantling sequence is optimized, part of mid-span arch rib supports are dismantled in advance after mid-arch closure, the start time of the arch rib decoration plate procedure and the suspender installation procedure can be advanced, mid-span, secondary side span, side span main beam and arch rib installation is formed, and the construction efficiency is improved. Arch rib support dismounting, decorative plate mounting and suspender mounting line production greatly saves the construction period. In addition, the mid-span arch rib support can be recycled to the side arch for use after being dismantled, construction site occupation is reduced, one-time input cost of support materials is reduced, and cost is saved.
本发明属于中承式拱梁协作体系钢拱桥的施工方法，特别涉及一种基于裸拱稳定的中承式拱梁协作钢箱连拱桥的体系转换施工方法。总体方法采用先梁后拱的施工方法，但是本发明通过优化拱肋支架拆除顺序，在中拱合龙后提前拆除部分中跨拱肋支架，可将拱肋装饰板工序和吊杆安装工序开始时间提前，形成中跨、次边跨、边跨主梁、拱肋安装，拱肋支架拆除、装饰板安装、吊杆安装流水作业，大大节约工期。此外，中跨拱肋支架拆除可周转至边拱使用，不仅减少施工场地占用，而且减少支架材料一次性投入费用，节约成本。
System transformation construction method of half-through arched girder cooperating steel box connecting arch bridge based on bare arch stability
The invention belongs to a construction method of a half-through arched girder cooperation system steel arch bridge, and particularly relates to a system conversion construction method of a half-through arched girder cooperation steel box connection arch bridge based on bare arch stability. The overall method adopts a first-beam and second-arch construction method, but according to the construction method, the arch rib support dismantling sequence is optimized, part of mid-span arch rib supports are dismantled in advance after mid-arch closure, the start time of the arch rib decoration plate procedure and the suspender installation procedure can be advanced, mid-span, secondary side span, side span main beam and arch rib installation is formed, and the construction efficiency is improved. Arch rib support dismounting, decorative plate mounting and suspender mounting line production greatly saves the construction period. In addition, the mid-span arch rib support can be recycled to the side arch for use after being dismantled, construction site occupation is reduced, one-time input cost of support materials is reduced, and cost is saved.
本发明属于中承式拱梁协作体系钢拱桥的施工方法，特别涉及一种基于裸拱稳定的中承式拱梁协作钢箱连拱桥的体系转换施工方法。总体方法采用先梁后拱的施工方法，但是本发明通过优化拱肋支架拆除顺序，在中拱合龙后提前拆除部分中跨拱肋支架，可将拱肋装饰板工序和吊杆安装工序开始时间提前，形成中跨、次边跨、边跨主梁、拱肋安装，拱肋支架拆除、装饰板安装、吊杆安装流水作业，大大节约工期。此外，中跨拱肋支架拆除可周转至边拱使用，不仅减少施工场地占用，而且减少支架材料一次性投入费用，节约成本。
System transformation construction method of half-through arched girder cooperating steel box connecting arch bridge based on bare arch stability
一种基于裸拱稳定的中承式拱梁协作钢箱连拱桥的体系转换施工方法
WANG BAOBING (author) / GONG FURONG (author) / WAN QIAOYE (author) / LAI KEDONG (author) / LEI XIAOYONG (author)
2023-05-05
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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