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A platform for research: civil engineering, architecture and urbanism
Method for constructing large-span support-free steel box girder by overhanging process
The invention relates to the technical field of bridge construction, in particular to a method for constructing a large-span unsupported steel box girder through an overhanging process, which comprises the following steps: 1, constructing a temporary support foundation; 2, manufacturing a temporary supporting system; 3, dividing the steel box girder into sections; 4, hoisting the side span steel box girder component; 5, hoisting a main span steel box girder; 6, selecting a lifting appliance, a clamping ring and a lifting rope; and 7, hoisting in-place control of the main body structural member. According to the construction method of the large-span support-free steel box girder constructed by the cantilever process, a construction method of arranging a support at the gravity center position is adopted, so that the stability of a support system for supporting a steel structural member can meet the construction requirement, and the stability of an unsupported part of the steel structuralmember is guaranteed. The construction efficiency is remarkably improved, the construction period is shortened, and a foundation is laid for advanced completion of the whole project.
本发明涉及桥梁施工技术领域，具体而言，尤其涉及一种悬挑工艺施工大跨度无支撑钢箱梁施工方法步骤如下步骤一：临时支撑基础施工；步骤二：临时支撑体系制作；步骤三：钢箱梁分段划分；步骤四：边跨钢箱梁构件吊装；步骤五：主跨钢箱梁吊装；步骤六：吊具、卡环、吊绳选择；步骤七：主体结构构件的吊装就位控制。悬挑工艺施工大跨度无支撑钢箱梁施工方法，采用重心位置设置支撑的施工方法，不仅保证了支撑钢结构件的支撑体系稳定性能够满足施工要求，而且保证了钢结构构件未支撑部分的自身稳定性。施工效率显著提高，节省了工期，为整体工程提前竣工奠定了基础。
Method for constructing large-span support-free steel box girder by overhanging process
The invention relates to the technical field of bridge construction, in particular to a method for constructing a large-span unsupported steel box girder through an overhanging process, which comprises the following steps: 1, constructing a temporary support foundation; 2, manufacturing a temporary supporting system; 3, dividing the steel box girder into sections; 4, hoisting the side span steel box girder component; 5, hoisting a main span steel box girder; 6, selecting a lifting appliance, a clamping ring and a lifting rope; and 7, hoisting in-place control of the main body structural member. According to the construction method of the large-span support-free steel box girder constructed by the cantilever process, a construction method of arranging a support at the gravity center position is adopted, so that the stability of a support system for supporting a steel structural member can meet the construction requirement, and the stability of an unsupported part of the steel structuralmember is guaranteed. The construction efficiency is remarkably improved, the construction period is shortened, and a foundation is laid for advanced completion of the whole project.
本发明涉及桥梁施工技术领域，具体而言，尤其涉及一种悬挑工艺施工大跨度无支撑钢箱梁施工方法步骤如下步骤一：临时支撑基础施工；步骤二：临时支撑体系制作；步骤三：钢箱梁分段划分；步骤四：边跨钢箱梁构件吊装；步骤五：主跨钢箱梁吊装；步骤六：吊具、卡环、吊绳选择；步骤七：主体结构构件的吊装就位控制。悬挑工艺施工大跨度无支撑钢箱梁施工方法，采用重心位置设置支撑的施工方法，不仅保证了支撑钢结构件的支撑体系稳定性能够满足施工要求，而且保证了钢结构构件未支撑部分的自身稳定性。施工效率显著提高，节省了工期，为整体工程提前竣工奠定了基础。
Method for constructing large-span support-free steel box girder by overhanging process
悬挑工艺施工大跨度无支撑钢箱梁施工方法
BAI YUZHU (author) / ZHANG YAOHUA (author) / LI NAN (author) / ZHENG XUEGANG (author) / GUO LIDA (author) / ZHAO JIAN (author) / WU TAO (author) / ZHANG HONGCHUN (author) / WANG HUAIBIAO (author) / ZHANG TAO (author)
2021-01-19
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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