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A platform for research: civil engineering, architecture and urbanism
Maintenance and reinforcement method and device for bridge deck slab of steel box girder cable-stayed bridge
The invention discloses a method and a device for maintaining and reinforcing a bridge deck of a steel box girder cable-stayed bridge, and the method comprises the following steps: based on a steel box girder bridge of which the bridge deck pavement is chiseled away, mounting an in-box stiffening truss rod piece to locally reinforce a steel box girder; and a counter-force device and an opposite jacking supporting rod are installed according to the pre-set position, opposite jacking force is applied to the locally-reinforced steel box girder, and the stress level of the steel box girder bridge deck top plate unit is adjusted so that the steel box girder bridge deck top plate unit can reach the zero stress state. According to the steel box girder cable-stayed bridge deck slab maintaining and reinforcing method and device, bolt connection between in-service bridge steel box girder bridge deck top plate sections is transformed into welding connection, the problem of water seepage of top plate joint seams of an original structure and the influence of connecting bolts on steel bridge deck pavement are thoroughly solved, and the durability of a steel box girder is improved. Meanwhile, in the implementation process, a bridge deck counter-force device is adopted, and it is ensured that the stress states of the steel beam top plate units are basically kept consistent before and after replacement.
本发明公开了一种钢箱梁斜拉桥桥面板维修加固方法及装置，所述方法包括：基于已凿除桥面铺装的钢箱梁桥，安装箱内加劲桁架杆件对钢箱梁局部加固；根据预先拟定的位置安装反力装置和对顶撑杆，对完成局部加固的钢箱梁施加对顶力，调整钢箱梁桥面顶板单元应力水平，使其达到零应力状态。该钢箱梁斜拉桥桥面板维修加固方法及装置，通过在役桥梁钢箱梁桥面顶板节段间的螺栓连接改造为焊接连接，彻底解决了原结构顶板节间缝渗水问题和连接螺栓对钢桥面铺装的影响，提高了钢箱梁耐久性能。同时，实施过程中，采用桥面反力装置，确保了钢梁顶板单元在更换前后受力状态基本保持一致。
Maintenance and reinforcement method and device for bridge deck slab of steel box girder cable-stayed bridge
The invention discloses a method and a device for maintaining and reinforcing a bridge deck of a steel box girder cable-stayed bridge, and the method comprises the following steps: based on a steel box girder bridge of which the bridge deck pavement is chiseled away, mounting an in-box stiffening truss rod piece to locally reinforce a steel box girder; and a counter-force device and an opposite jacking supporting rod are installed according to the pre-set position, opposite jacking force is applied to the locally-reinforced steel box girder, and the stress level of the steel box girder bridge deck top plate unit is adjusted so that the steel box girder bridge deck top plate unit can reach the zero stress state. According to the steel box girder cable-stayed bridge deck slab maintaining and reinforcing method and device, bolt connection between in-service bridge steel box girder bridge deck top plate sections is transformed into welding connection, the problem of water seepage of top plate joint seams of an original structure and the influence of connecting bolts on steel bridge deck pavement are thoroughly solved, and the durability of a steel box girder is improved. Meanwhile, in the implementation process, a bridge deck counter-force device is adopted, and it is ensured that the stress states of the steel beam top plate units are basically kept consistent before and after replacement.
本发明公开了一种钢箱梁斜拉桥桥面板维修加固方法及装置，所述方法包括：基于已凿除桥面铺装的钢箱梁桥，安装箱内加劲桁架杆件对钢箱梁局部加固；根据预先拟定的位置安装反力装置和对顶撑杆，对完成局部加固的钢箱梁施加对顶力，调整钢箱梁桥面顶板单元应力水平，使其达到零应力状态。该钢箱梁斜拉桥桥面板维修加固方法及装置，通过在役桥梁钢箱梁桥面顶板节段间的螺栓连接改造为焊接连接，彻底解决了原结构顶板节间缝渗水问题和连接螺栓对钢桥面铺装的影响，提高了钢箱梁耐久性能。同时，实施过程中，采用桥面反力装置，确保了钢梁顶板单元在更换前后受力状态基本保持一致。
Maintenance and reinforcement method and device for bridge deck slab of steel box girder cable-stayed bridge
一种钢箱梁斜拉桥桥面板维修加固方法及装置
XIAO HAIZHU (author) / SUN YINGJIE (author) / SUN LISHAN (author) / ZHANG XINGZHI (author) / XU WEI (author) / LIU SHUGUANG (author) / WANG JIE (author) / WANG MANMAN (author) / FANG KE (author) / QIN XUNCAI (author)
2023-06-23
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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