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A platform for research: civil engineering, architecture and urbanism
Construction method for integrally dismantling steel box girder
The invention discloses a construction method for integrally dismantling a steel box girder, which relates to the technical field of bridge engineering construction and comprises the following steps of: determining the gravity center and the lifting point position of the steel box girder; bridge deck ancillary facilities are dismantled, steel box girder counterweights are removed, and a concrete foundation of an under-bridge temporary support is manufactured; after the concrete foundation meets the strength requirement, a supporting frame of a lifting point is erected, steel pipe column supporting legs of a beam falling platform are erected, and brackets and a working platform are installed; a lifting and lowering device is installed on the supporting frame, and debugging and load testing are completed; fixing the ends of the steel box girders of the connecting piers, and cutting the steel box girders to complete system conversion; lowering control parameters are set, and the whole steel box girder is lowered; and the steel box girder is disassembled on the ground after completely falling to the ground. The steel box girder can be cut and disassembled on the ground, the working face is wide, and the working efficiency of workers is high; the requirement for foundation bearing capacity is low, and time and labor are saved during foundation treatment; the working environment is not limited, the mechanical equipment utilization rate is high, and the construction efficiency is high.
本发明公开了一种钢箱梁整体拆除施工方法，涉及桥梁工程施工技术领域，包括以下步骤：确定钢箱梁的重心以及吊点位置；拆除桥面附属设施，清除钢箱梁配重，制作桥下临时支撑的混凝土基础；待混凝土基础达到强度要求后，搭设吊点的支撑架，搭设落梁平台钢管柱支腿，安装牛腿及作业平台；在支撑架上安装提升下放装置，并完成调试及荷载试验；固定交接墩钢箱梁端头，切割钢箱梁，完成体系转换；设定下放控制参数，将钢箱梁整体下放；钢箱梁完全落地后在地面进行解体。本发明可以实现在地面对钢箱梁进行切割解体，作业面宽广，人员作业效率高；对地基承载力要求比较低，地基处理省时省力；作业环境不受限制，机械设备利用率高，施工效率高。
Construction method for integrally dismantling steel box girder
The invention discloses a construction method for integrally dismantling a steel box girder, which relates to the technical field of bridge engineering construction and comprises the following steps of: determining the gravity center and the lifting point position of the steel box girder; bridge deck ancillary facilities are dismantled, steel box girder counterweights are removed, and a concrete foundation of an under-bridge temporary support is manufactured; after the concrete foundation meets the strength requirement, a supporting frame of a lifting point is erected, steel pipe column supporting legs of a beam falling platform are erected, and brackets and a working platform are installed; a lifting and lowering device is installed on the supporting frame, and debugging and load testing are completed; fixing the ends of the steel box girders of the connecting piers, and cutting the steel box girders to complete system conversion; lowering control parameters are set, and the whole steel box girder is lowered; and the steel box girder is disassembled on the ground after completely falling to the ground. The steel box girder can be cut and disassembled on the ground, the working face is wide, and the working efficiency of workers is high; the requirement for foundation bearing capacity is low, and time and labor are saved during foundation treatment; the working environment is not limited, the mechanical equipment utilization rate is high, and the construction efficiency is high.
本发明公开了一种钢箱梁整体拆除施工方法，涉及桥梁工程施工技术领域，包括以下步骤：确定钢箱梁的重心以及吊点位置；拆除桥面附属设施，清除钢箱梁配重，制作桥下临时支撑的混凝土基础；待混凝土基础达到强度要求后，搭设吊点的支撑架，搭设落梁平台钢管柱支腿，安装牛腿及作业平台；在支撑架上安装提升下放装置，并完成调试及荷载试验；固定交接墩钢箱梁端头，切割钢箱梁，完成体系转换；设定下放控制参数，将钢箱梁整体下放；钢箱梁完全落地后在地面进行解体。本发明可以实现在地面对钢箱梁进行切割解体，作业面宽广，人员作业效率高；对地基承载力要求比较低，地基处理省时省力；作业环境不受限制，机械设备利用率高，施工效率高。
Construction method for integrally dismantling steel box girder
一种钢箱梁整体拆除施工方法
DU LIANG (author) / SONG YAXIONG (author) / ZOU CHAO (author) / DANG YANSHENG (author) / XI YIJUN (author) / ZHANG GUOQIANG (author) / CHEN DEYONG (author) / SHI MENG (author) / PING QIANG (author) / MA XINMIN (author)
2024-04-16
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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