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A platform for research: civil engineering, architecture and urbanism
Construction method of full-prefabricated assembled corrugated steel web extradosed cable-stayed bridge
The invention discloses a construction method of a full-prefabricated assembled corrugated steel web extradosed cable-stayed bridge. In the first stage, construction before cable pulling is conducted,specifically, firstly, a pier foundation and a cable bent tower are constructed, then a prefabricated corrugated steel web and a steel diaphragm plate are hoisted for installation construction, thena concrete prefabricated bottom plate and a concrete prefabricated top plate are hoisted in sequence, and a bottom plate post-cast strip and a top plate post-cast strip are formed through cast-in-place; in subsequent second-stage construction, the prefabricated corrugated steel web is hoisted according to the method, inhaul cables are installed, first tensioning is carried out on the inhaul cables, then a prefabricated concrete bottom plate is hoisted, second tensioning is carried out on the inhaul cables, finally the prefabricated concrete top plate is hoisted, and final tensioning and fixingare carried out on the inhaul cables; in third-stage construction, construction is carried out according to the first-stage method until the whole bridge cantilever construction is completed; and finally, the bridge deck is constructed, and whole bridge construction is completed. Full-prefabricated construction is adopted, the concrete quality is improved, the time of on-site high-altitude operation is shortened, and the engineering risk is reduced.
本发明公开了一种全预制拼装波形钢腹板矮塔斜拉桥施工方法，第一阶段，拉索之前施工：首先桥墩基础和索塔施工，然后吊装预制波形钢腹板和钢横隔板进行安装施工，之后依次吊装混凝土预制底板和混凝土预制顶板，分别现浇形成底板后浇带和顶板后浇带；之后第二阶段施工，按照前述方法吊装预制波形钢腹板，并安装拉索，对拉索进行第一次张拉，之后吊装混凝土预制底板，对拉索进行第二次张拉，最后吊装混凝土预制顶板，对拉索进行最后张拉固定，第三阶段施工，按照第一阶段方法进行施工，直至完成整个桥梁悬臂施工；最后对桥面施工，完成整个桥梁施工。本发明采用全预制化建造，提高了混凝土质量，缩短现场高空作业的时间，减低工程风险。
Construction method of full-prefabricated assembled corrugated steel web extradosed cable-stayed bridge
The invention discloses a construction method of a full-prefabricated assembled corrugated steel web extradosed cable-stayed bridge. In the first stage, construction before cable pulling is conducted,specifically, firstly, a pier foundation and a cable bent tower are constructed, then a prefabricated corrugated steel web and a steel diaphragm plate are hoisted for installation construction, thena concrete prefabricated bottom plate and a concrete prefabricated top plate are hoisted in sequence, and a bottom plate post-cast strip and a top plate post-cast strip are formed through cast-in-place; in subsequent second-stage construction, the prefabricated corrugated steel web is hoisted according to the method, inhaul cables are installed, first tensioning is carried out on the inhaul cables, then a prefabricated concrete bottom plate is hoisted, second tensioning is carried out on the inhaul cables, finally the prefabricated concrete top plate is hoisted, and final tensioning and fixingare carried out on the inhaul cables; in third-stage construction, construction is carried out according to the first-stage method until the whole bridge cantilever construction is completed; and finally, the bridge deck is constructed, and whole bridge construction is completed. Full-prefabricated construction is adopted, the concrete quality is improved, the time of on-site high-altitude operation is shortened, and the engineering risk is reduced.
本发明公开了一种全预制拼装波形钢腹板矮塔斜拉桥施工方法，第一阶段，拉索之前施工：首先桥墩基础和索塔施工，然后吊装预制波形钢腹板和钢横隔板进行安装施工，之后依次吊装混凝土预制底板和混凝土预制顶板，分别现浇形成底板后浇带和顶板后浇带；之后第二阶段施工，按照前述方法吊装预制波形钢腹板，并安装拉索，对拉索进行第一次张拉，之后吊装混凝土预制底板，对拉索进行第二次张拉，最后吊装混凝土预制顶板，对拉索进行最后张拉固定，第三阶段施工，按照第一阶段方法进行施工，直至完成整个桥梁悬臂施工；最后对桥面施工，完成整个桥梁施工。本发明采用全预制化建造，提高了混凝土质量，缩短现场高空作业的时间，减低工程风险。
Construction method of full-prefabricated assembled corrugated steel web extradosed cable-stayed bridge
一种全预制拼装波形钢腹板矮塔斜拉桥施工方法
XIAO HENGLIN (author) / WANG KEBING (author) / LIU YONGLI (author) / MA QIANG (author) / HE JUN (author) / GUO BIN (author) / YANG ZHIYONG (author) / CHEN ZHI (author) / XIONG HAOWEN (author)
2020-11-06
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
| European Patent Office | 2023
Stay cable construction method of extradosed cable-stayed bridge
| European Patent Office | 2020