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A platform for research: civil engineering, architecture and urbanism
Hoisting construction method for large-cantilever wing-spreading steel box girder
The invention relates to a hoisting construction method for a cantilever wing spreading steel box girder. The hoisting construction method comprises the following specific steps: step 1, construction preparation; secondly, steel pipe piles and abutment piers are constructed; 3, temporary support construction; fourthly, the steel box girder is hoisted and installed; 5, the cantilever steel box girder is hoisted and installed; 6, linearly adjusting the steel box girder; seventhly, prestress tensioning construction is conducted in the hanging steel box on the top of the steel-concrete combined section; eighthly, the temporary supports and the steel pipe piles are dismantled and constructed; and ninthly, construction is completed, inspection and acceptance are conducted, and equipment and machines are dismantled and returned. The invention belongs to the field of bridge engineering construction, and not only can improve the stability of a temporary support structure, the installation precision of a steel box girder, the adjustment precision and convenience of the top of an edge pier, the installation speed of a cantilever arm and the prestress tensioning effect, but also improves the construction quality, greatly improves the field hoisting and installation construction efficiency of the steel box girder, saves manpower and cost, and improves the construction efficiency. And good technical and economic benefits can be obtained when the method is applied to practical engineering.
本发明涉及一种悬臂展翅钢箱梁吊装施工方法，包括以下具体步骤：步骤一，施工准备；步骤二，钢管桩及边墩施工；步骤三，临时支架施工；步骤四，钢箱梁吊放安装；步骤五，挑臂钢箱梁吊放安装；步骤六，钢箱梁线性调整；步骤七，钢混结合段顶部吊挂钢箱内预应力张拉施工；步骤八，临时支架和钢管桩拆除施工；步骤九，施工完毕并检查验收，设备和机械拆除退场。本发明属于桥梁工程施工领域，不但可以提高临时支架结构的稳定性、钢箱梁安装精度、边墩墩顶调节精度和便捷性、挑臂安装速度，预应力张拉效果，同时提高了施工质量，大大提高现场钢箱梁吊装与安装施工效率，节省人力和成本，应用于实际工程中可取得较好的技术经济效益。
Hoisting construction method for large-cantilever wing-spreading steel box girder
The invention relates to a hoisting construction method for a cantilever wing spreading steel box girder. The hoisting construction method comprises the following specific steps: step 1, construction preparation; secondly, steel pipe piles and abutment piers are constructed; 3, temporary support construction; fourthly, the steel box girder is hoisted and installed; 5, the cantilever steel box girder is hoisted and installed; 6, linearly adjusting the steel box girder; seventhly, prestress tensioning construction is conducted in the hanging steel box on the top of the steel-concrete combined section; eighthly, the temporary supports and the steel pipe piles are dismantled and constructed; and ninthly, construction is completed, inspection and acceptance are conducted, and equipment and machines are dismantled and returned. The invention belongs to the field of bridge engineering construction, and not only can improve the stability of a temporary support structure, the installation precision of a steel box girder, the adjustment precision and convenience of the top of an edge pier, the installation speed of a cantilever arm and the prestress tensioning effect, but also improves the construction quality, greatly improves the field hoisting and installation construction efficiency of the steel box girder, saves manpower and cost, and improves the construction efficiency. And good technical and economic benefits can be obtained when the method is applied to practical engineering.
本发明涉及一种悬臂展翅钢箱梁吊装施工方法，包括以下具体步骤：步骤一，施工准备；步骤二，钢管桩及边墩施工；步骤三，临时支架施工；步骤四，钢箱梁吊放安装；步骤五，挑臂钢箱梁吊放安装；步骤六，钢箱梁线性调整；步骤七，钢混结合段顶部吊挂钢箱内预应力张拉施工；步骤八，临时支架和钢管桩拆除施工；步骤九，施工完毕并检查验收，设备和机械拆除退场。本发明属于桥梁工程施工领域，不但可以提高临时支架结构的稳定性、钢箱梁安装精度、边墩墩顶调节精度和便捷性、挑臂安装速度，预应力张拉效果，同时提高了施工质量，大大提高现场钢箱梁吊装与安装施工效率，节省人力和成本，应用于实际工程中可取得较好的技术经济效益。
Hoisting construction method for large-cantilever wing-spreading steel box girder
大悬臂展翅钢箱梁吊装施工方法
CHU GENFA (author) / CHANG RENFEI (author) / JIN LIANG (author) / LI ZHONGHUI (author) / TU CHONGCHONG (author) / SHEN JIAN (author) / GONG MEILING (author) / SHI PANPAN (author) / ZHOU LILI (author)
2023-08-29
Patent
Electronic Resource
Chinese
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