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A platform for research: civil engineering, architecture and urbanism
Temporary support construction technology for building butterfly arch bridge
The invention discloses a temporary support construction technology for building a butterfly arch bridge, and belongs to the technical field of butterfly arch bridges. The method mainly comprises the processes of temporary support design and checking calculation, main beam support and arch rib support erection, support collision prevention, support acceptance inspection and the like. According to the arch rib body axis plane projection quadratic parabolic equation and the arch rib body three-dimensional structure diagram, an arch ring lowest elevation calculation formula is deduced, the elevation of the arch rib support is determined, the problem that the value of the elevation of the arch rib body is difficult to obtain is solved, the construction efficiency of arch rib body installation is improved, and the linear precision of arch rib body installation is ensured. According to the actual span arrangement condition of a field supporting system, a reasonable temporary support arrangement form is preferably selected, three-dimensional stress and deformation analysis is conducted through finite element simulation software, the feasibility of a construction scheme is ensured, meanwhile, checking analysis is conducted on a construction stage structure and a use stage structure after bridge forming through the finite element simulation software, and the construction stage structure is optimized. And the safety and the stability of the use stage are ensured.
本发明公开了一种蝴蝶拱桥搭建用临时支架施工工艺，属于蝴蝶拱桥技术领域。主要包括临时支架设计及验算、搭设主梁支架和拱肋支架、支架防撞及支架验收等工艺。本发明根据拱肋本体轴线平面投影二次抛物线方程及拱肋本体三维构造图，推导出拱圈最低高程计算公式，确定了拱肋支架的高程，解决了拱肋本体高程取值难得问题，提高了拱肋本体安装的施工效率，确保了拱肋本体安装的线型精度。根据现场支撑体系实际布跨情况，优选出合理的临时支架布置形式，通过有限元模拟软件进行三维受力及变形分析，确保了施工方案的可行性，同时通过有限元模拟软件对施工阶段结构和成桥后使用阶段结构进行了验算分析，保障了其使用阶段的安全性及稳定性。
Temporary support construction technology for building butterfly arch bridge
The invention discloses a temporary support construction technology for building a butterfly arch bridge, and belongs to the technical field of butterfly arch bridges. The method mainly comprises the processes of temporary support design and checking calculation, main beam support and arch rib support erection, support collision prevention, support acceptance inspection and the like. According to the arch rib body axis plane projection quadratic parabolic equation and the arch rib body three-dimensional structure diagram, an arch ring lowest elevation calculation formula is deduced, the elevation of the arch rib support is determined, the problem that the value of the elevation of the arch rib body is difficult to obtain is solved, the construction efficiency of arch rib body installation is improved, and the linear precision of arch rib body installation is ensured. According to the actual span arrangement condition of a field supporting system, a reasonable temporary support arrangement form is preferably selected, three-dimensional stress and deformation analysis is conducted through finite element simulation software, the feasibility of a construction scheme is ensured, meanwhile, checking analysis is conducted on a construction stage structure and a use stage structure after bridge forming through the finite element simulation software, and the construction stage structure is optimized. And the safety and the stability of the use stage are ensured.
本发明公开了一种蝴蝶拱桥搭建用临时支架施工工艺，属于蝴蝶拱桥技术领域。主要包括临时支架设计及验算、搭设主梁支架和拱肋支架、支架防撞及支架验收等工艺。本发明根据拱肋本体轴线平面投影二次抛物线方程及拱肋本体三维构造图，推导出拱圈最低高程计算公式，确定了拱肋支架的高程，解决了拱肋本体高程取值难得问题，提高了拱肋本体安装的施工效率，确保了拱肋本体安装的线型精度。根据现场支撑体系实际布跨情况，优选出合理的临时支架布置形式，通过有限元模拟软件进行三维受力及变形分析，确保了施工方案的可行性，同时通过有限元模拟软件对施工阶段结构和成桥后使用阶段结构进行了验算分析，保障了其使用阶段的安全性及稳定性。
Temporary support construction technology for building butterfly arch bridge
一种蝴蝶拱桥搭建用临时支架施工工艺
CUI JIAN (author) / CHENG TAO (author) / QIAN SHENCHUN (author) / SHI HUAIYUAN (author) / WEI MING (author) / JING HANLIN (author) / XU LEI (author)
2024-06-11
Patent
Electronic Resource
Chinese
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