A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method of prefabricated cross beam of large-span concrete-filled steel tube arch bridge
The invention relates to a construction method for a prefabricated assembly type cross beam of a large-span concrete-filled steel tube arch bridge. The construction method comprises the following steps of base prefabrication, prefabricated assembly type cross beam formwork erecting, prefabricated cross beam positioning, end middle cross beam construction and prefabricated cross beam wet joint construction. The template has the beneficial effects that the upper part of the prefabricated beam template adopts the replaceable side template section, so that the template can be adjusted within a certain height range, the template is suitable for prefabricated construction of beams with various beam heights, and the utilization rate of materials is improved; when the cross beam is prefabricated, a lifting rope sleeve for transferring the cross beam is pre-embedded by arranging a reserved square hole of the base, and a lifting rope penetrates through the lifting rope sleeve to lift the prefabricated cross beam, so that a beam body is protected during transferring, and the lifting rope cannot slide; the wet joint between the straining beam and the prefabricated cross beam adopts an integral suspended formwork system, a wet joint side suspended formwork is connected with a positioning-pouring integrated bottom formwork through a wet joint side suspended formwork fixing bolt, and the construction quality of the wet joint is guaranteed.
本发明涉及一种大跨度钢管混凝土拱桥预制装配式横梁的施工方法，包括以下步骤：基座预制、预制装配式横梁模板支设、预制横梁落位、端部中横梁施工、预制横梁湿接缝施工。本发明的有益效果是：预制横梁模板的上部采用了可更换侧模段，使其在一定高度范围内可调，适用多种梁高的横梁预制施工，提高了材料的利用率；横梁预制时就通过设置基座预留方孔预埋了横梁转运所用的吊绳套筒，吊绳穿过吊绳套将预制横梁起吊，在转运时即保护了梁体，也不会造成吊绳滑动；系梁与预制横梁之间的湿接缝采用了整体吊模体系，湿接缝侧吊模通过湿接缝侧吊模固定螺栓连接有定位‑浇筑一体化底模，保证了湿接缝的施工质量。
Construction method of prefabricated cross beam of large-span concrete-filled steel tube arch bridge
The invention relates to a construction method for a prefabricated assembly type cross beam of a large-span concrete-filled steel tube arch bridge. The construction method comprises the following steps of base prefabrication, prefabricated assembly type cross beam formwork erecting, prefabricated cross beam positioning, end middle cross beam construction and prefabricated cross beam wet joint construction. The template has the beneficial effects that the upper part of the prefabricated beam template adopts the replaceable side template section, so that the template can be adjusted within a certain height range, the template is suitable for prefabricated construction of beams with various beam heights, and the utilization rate of materials is improved; when the cross beam is prefabricated, a lifting rope sleeve for transferring the cross beam is pre-embedded by arranging a reserved square hole of the base, and a lifting rope penetrates through the lifting rope sleeve to lift the prefabricated cross beam, so that a beam body is protected during transferring, and the lifting rope cannot slide; the wet joint between the straining beam and the prefabricated cross beam adopts an integral suspended formwork system, a wet joint side suspended formwork is connected with a positioning-pouring integrated bottom formwork through a wet joint side suspended formwork fixing bolt, and the construction quality of the wet joint is guaranteed.
本发明涉及一种大跨度钢管混凝土拱桥预制装配式横梁的施工方法，包括以下步骤：基座预制、预制装配式横梁模板支设、预制横梁落位、端部中横梁施工、预制横梁湿接缝施工。本发明的有益效果是：预制横梁模板的上部采用了可更换侧模段，使其在一定高度范围内可调，适用多种梁高的横梁预制施工，提高了材料的利用率；横梁预制时就通过设置基座预留方孔预埋了横梁转运所用的吊绳套筒，吊绳穿过吊绳套将预制横梁起吊，在转运时即保护了梁体，也不会造成吊绳滑动；系梁与预制横梁之间的湿接缝采用了整体吊模体系，湿接缝侧吊模通过湿接缝侧吊模固定螺栓连接有定位‑浇筑一体化底模，保证了湿接缝的施工质量。
Construction method of prefabricated cross beam of large-span concrete-filled steel tube arch bridge
大跨度钢管混凝土拱桥预制装配式横梁的施工方法
HAO XUFENG (author) / WANG GUANGBO (author) / YAO KAIJUN (author) / HE ZANHONG (author) / WANG YUANYU (author) / CHEN FANGCHAO (author) / CHU JIAHUI (author) / LIU YI (author) / CHENG GUOYONG (author)
2024-03-15
Patent
Electronic Resource
Chinese
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