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A platform for research: civil engineering, architecture and urbanism
Bridge uniform-section thin-wall pier lifting frame type reverse formwork structure and construction method
The invention relates to a bridge uniform-section thin-wall pier lifting frame type reverse formwork structure and a construction method. The bridge uniform-section thin-wall pier lifting frame type reverse formwork structure comprises an outer formwork lifting frame, a supporting steel pipe, a wedge block type jack, an enclosure truss structure, a closed guardrail, an up-down operation platform, a maintenance platform, an outer formwork, a bolt back shore, an inner formwork lifting frame, an inner formwork support and the like. According to the whole formwork structure, an operation platform, a lateral support and a formwork system are separated, and structural separation and function recombination are conducted on the basis of a traditional formwork. The lifting system bears the load of the working face of the operation platform, the weight of the formwork is borne by the pier columns, the influence of the age of concrete on two layers of circulation is small, the overall construction progress is fast, opposite pull rods in the traditional technology are omitted through lateral supporting of the enclosure truss, the concrete appearance quality is good, and the structure is reliable and easy and convenient to operate. The uniform-section thin-wall pier formwork outer frame lifting and reverse formwork circulating operation is achieved, and the construction efficiency and safety are greatly improved. According to the technology, high-quality, continuous and efficient construction of uniform-section thin-wall piers of bridges can be achieved.
本发明涉及一种桥梁等截面薄壁墩提框式倒模结构及施工方法，包括外模板提升架、支撑钢管、楔块式千斤顶、围圈桁架结构、封闭护栏、上下操作平台、检修平台、外模板、螺栓顶撑、内模板提升架、内模板支撑等，整套模板结构将操作平台、侧向支撑与模板系统分离，在传统模板基础上通过结构分离与功能再组合。提升系统承担操作平台作业面的荷载，模板重量由墩柱承担，两层循环受混凝土龄期影响较小，整体施工进度快，围圈桁架的侧向支撑取消了传统工艺中的对拉杆，使得混凝土外观质量好，其结构可靠、操作简便。本发明实现了等截面薄壁墩模板外框提升与倒模循环作业，施工效率和安全性大幅提高。该技术可实现桥梁等截面薄壁墩的高质量连续高效施工。
Bridge uniform-section thin-wall pier lifting frame type reverse formwork structure and construction method
The invention relates to a bridge uniform-section thin-wall pier lifting frame type reverse formwork structure and a construction method. The bridge uniform-section thin-wall pier lifting frame type reverse formwork structure comprises an outer formwork lifting frame, a supporting steel pipe, a wedge block type jack, an enclosure truss structure, a closed guardrail, an up-down operation platform, a maintenance platform, an outer formwork, a bolt back shore, an inner formwork lifting frame, an inner formwork support and the like. According to the whole formwork structure, an operation platform, a lateral support and a formwork system are separated, and structural separation and function recombination are conducted on the basis of a traditional formwork. The lifting system bears the load of the working face of the operation platform, the weight of the formwork is borne by the pier columns, the influence of the age of concrete on two layers of circulation is small, the overall construction progress is fast, opposite pull rods in the traditional technology are omitted through lateral supporting of the enclosure truss, the concrete appearance quality is good, and the structure is reliable and easy and convenient to operate. The uniform-section thin-wall pier formwork outer frame lifting and reverse formwork circulating operation is achieved, and the construction efficiency and safety are greatly improved. According to the technology, high-quality, continuous and efficient construction of uniform-section thin-wall piers of bridges can be achieved.
本发明涉及一种桥梁等截面薄壁墩提框式倒模结构及施工方法，包括外模板提升架、支撑钢管、楔块式千斤顶、围圈桁架结构、封闭护栏、上下操作平台、检修平台、外模板、螺栓顶撑、内模板提升架、内模板支撑等，整套模板结构将操作平台、侧向支撑与模板系统分离，在传统模板基础上通过结构分离与功能再组合。提升系统承担操作平台作业面的荷载，模板重量由墩柱承担，两层循环受混凝土龄期影响较小，整体施工进度快，围圈桁架的侧向支撑取消了传统工艺中的对拉杆，使得混凝土外观质量好，其结构可靠、操作简便。本发明实现了等截面薄壁墩模板外框提升与倒模循环作业，施工效率和安全性大幅提高。该技术可实现桥梁等截面薄壁墩的高质量连续高效施工。
Bridge uniform-section thin-wall pier lifting frame type reverse formwork structure and construction method
一种桥梁等截面薄壁墩提框式倒模结构及施工方法
DING MIAO (author) / ZHAO WEIDONG (author) / WANG GUOPING (author) / ZHANG JIN'AN (author) / YU YUPING (author) / YANG BING (author) / HU QINGGUO (author) / LYU RONGBING (author) / ZHANG XIAOMING (author) / MA YONGGANG (author)
2023-11-24
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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