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Separated railway bridge steel-concrete transition section structure construction method
The invention discloses a separated railway bridge steel-concrete transition section structure construction method. The method comprises the steps of manufacturing an outer wrapping steel plate and temporary steel padstones; wrapping a steel jacket box with a pier stud formwork, and hoisting the outer wrapping steel plate and the pier stud formwork together; hoisting the two temporary steel padstones to the design positions of the two sides in the steel jacket box; pouring concrete into the steel jacket box for the first time; removing the pier stud framework, and hoisting a steel cross beam;welding connecting pieces on the outer wrapping steel plate to the steel cross beam; pouring concrete for the second time and the like. The method has the beneficial effects that the outer wrapping steel plate is arranged on the outer side of the upper portion of the pier stud, the lower portion of the outer wrapping steel plate and the pier stud are poured together, the upper portion is welded tothe steel cross beam, and meanwhile, the connecting pieces are arranged to effectively adjust deviation of the steel cross beam; the temporary steel padstones are arranged in the pier stud and can also form an integral structure with the reinforced concrete pier stud to jointly bear upper loads, so that the overall stability of the lower structure of the steel tie bar arch is guaranteed. The method is suitable for large-span steel beams which cannot be installed in place at a time.
一种分离式铁路桥梁钢混过渡段结构施工方法。其包括制作外包钢板和临时钢垫石；用墩柱模板将钢套箱包裹住，将外包钢板连同墩柱模板吊装；将两个临时钢垫石吊装到钢套箱内两侧的设计位置；在钢套箱内部进行第一次混凝土浇筑；拆除墩柱模板，吊装钢横梁；将外包钢板上的连接件与钢横梁进行焊接；第二次混凝土浇筑等步骤。本发明效果：钢混过渡段是在墩柱上部外侧设置外包钢板，外包钢板下部与墩柱一同浇筑，上部与钢横梁进行焊接，同时设置连接件，能够有效调整钢横梁的偏差；墩柱内部设置临时钢垫石，又能与钢筋混凝土墩柱形成整体结构，共同承受上部荷载，以确保钢系杆拱下部结构的整体稳定。适用于大跨度钢横梁且不能一次安装到位的情况。
Separated railway bridge steel-concrete transition section structure construction method
The invention discloses a separated railway bridge steel-concrete transition section structure construction method. The method comprises the steps of manufacturing an outer wrapping steel plate and temporary steel padstones; wrapping a steel jacket box with a pier stud formwork, and hoisting the outer wrapping steel plate and the pier stud formwork together; hoisting the two temporary steel padstones to the design positions of the two sides in the steel jacket box; pouring concrete into the steel jacket box for the first time; removing the pier stud framework, and hoisting a steel cross beam;welding connecting pieces on the outer wrapping steel plate to the steel cross beam; pouring concrete for the second time and the like. The method has the beneficial effects that the outer wrapping steel plate is arranged on the outer side of the upper portion of the pier stud, the lower portion of the outer wrapping steel plate and the pier stud are poured together, the upper portion is welded tothe steel cross beam, and meanwhile, the connecting pieces are arranged to effectively adjust deviation of the steel cross beam; the temporary steel padstones are arranged in the pier stud and can also form an integral structure with the reinforced concrete pier stud to jointly bear upper loads, so that the overall stability of the lower structure of the steel tie bar arch is guaranteed. The method is suitable for large-span steel beams which cannot be installed in place at a time.
一种分离式铁路桥梁钢混过渡段结构施工方法。其包括制作外包钢板和临时钢垫石；用墩柱模板将钢套箱包裹住，将外包钢板连同墩柱模板吊装；将两个临时钢垫石吊装到钢套箱内两侧的设计位置；在钢套箱内部进行第一次混凝土浇筑；拆除墩柱模板，吊装钢横梁；将外包钢板上的连接件与钢横梁进行焊接；第二次混凝土浇筑等步骤。本发明效果：钢混过渡段是在墩柱上部外侧设置外包钢板，外包钢板下部与墩柱一同浇筑，上部与钢横梁进行焊接，同时设置连接件，能够有效调整钢横梁的偏差；墩柱内部设置临时钢垫石，又能与钢筋混凝土墩柱形成整体结构，共同承受上部荷载，以确保钢系杆拱下部结构的整体稳定。适用于大跨度钢横梁且不能一次安装到位的情况。
Separated railway bridge steel-concrete transition section structure construction method
一种分离式铁路桥梁钢混过渡段结构施工方法
MI WANFU (author) / CHEN PENG (author) / DAI HUANMIN (author) / WANG XIAOGANG (author) / CHAI JIUZHOU (author) / YANG WANDONG (author) / HE XIUMAN (author) / SONG WENJIE (author)
2020-10-13
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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