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A platform for research: civil engineering, architecture and urbanism
Two-way curved arch bridge steel pipe sleeve arch reinforcing method
The invention discloses a two-way curved arch bridge steel pipe sleeve arch reinforcing method which comprises the steps that the structural size of a main arch ring is rechecked, and a spiral steel pipe and a flange plate are prefabricated section by section; treating conventional diseases of the main arch ring; determining a steel bar planting hole position according to the position of the main steel bar, completing steel bar planting, pouring an arch springing reinforcing section, and pre-burying a flange plate steel plate and a connecting bolt; steel bar planting hole positions are determined according to the positions of main steel bars, steel bar planting is completed, newly-arranged stirrups and original diaphragm stirrups are welded, a formwork is erected, concrete is poured, flange plate steel plates and connecting bolts are pre-buried, and diaphragms are changed into diaphragm plates; steel bars are planted in the main arch ring, a steel bar framework is welded and bound, and spiral steel pipes are erected and spliced in the main arch ring; and building a mold for casting. The spiral steel pipe and the new concrete are connected into a whole through the studs, it is guaranteed that the new structure and the old structure are cooperatively stressed, the integrity of the two-way curved arch bridge is enhanced, the spiral steel pipe is arranged in the two-way curved arch bridge, consumption of concrete materials is reduced, and the spiral steel pipe serving as a stress component can bear part of construction loads.
本发明公开了一种双曲拱桥钢管套拱加固方法，包括：主拱圈构造尺寸复核，分节预制螺旋钢管、法兰盘；主拱圈常规病害处治；根据主筋位置确定植筋孔位并完成植筋，浇筑拱脚加强段，预埋法兰盘钢板及连接螺栓；根据主筋位置确定植筋孔位并完成植筋，将新设置箍筋与原横隔梁箍筋焊接并立模浇筑混凝土，预埋法兰盘钢板及连接螺栓，将横隔梁改为横隔板；主拱圈植筋，焊接并绑扎钢筋骨架，于所述主拱圈内部架设、拼接螺旋钢管；搭模浇铸。通过植筋连接形成整体，螺旋钢管与新混凝土之间通过栓钉连接形成整体，保证了新老结构协同受力，增强了双曲拱桥整体性，内部设置螺旋钢管，降低了混凝土材料的消耗，螺旋钢管作为受力构件也可承担部分施工荷载。
Two-way curved arch bridge steel pipe sleeve arch reinforcing method
The invention discloses a two-way curved arch bridge steel pipe sleeve arch reinforcing method which comprises the steps that the structural size of a main arch ring is rechecked, and a spiral steel pipe and a flange plate are prefabricated section by section; treating conventional diseases of the main arch ring; determining a steel bar planting hole position according to the position of the main steel bar, completing steel bar planting, pouring an arch springing reinforcing section, and pre-burying a flange plate steel plate and a connecting bolt; steel bar planting hole positions are determined according to the positions of main steel bars, steel bar planting is completed, newly-arranged stirrups and original diaphragm stirrups are welded, a formwork is erected, concrete is poured, flange plate steel plates and connecting bolts are pre-buried, and diaphragms are changed into diaphragm plates; steel bars are planted in the main arch ring, a steel bar framework is welded and bound, and spiral steel pipes are erected and spliced in the main arch ring; and building a mold for casting. The spiral steel pipe and the new concrete are connected into a whole through the studs, it is guaranteed that the new structure and the old structure are cooperatively stressed, the integrity of the two-way curved arch bridge is enhanced, the spiral steel pipe is arranged in the two-way curved arch bridge, consumption of concrete materials is reduced, and the spiral steel pipe serving as a stress component can bear part of construction loads.
本发明公开了一种双曲拱桥钢管套拱加固方法，包括：主拱圈构造尺寸复核，分节预制螺旋钢管、法兰盘；主拱圈常规病害处治；根据主筋位置确定植筋孔位并完成植筋，浇筑拱脚加强段，预埋法兰盘钢板及连接螺栓；根据主筋位置确定植筋孔位并完成植筋，将新设置箍筋与原横隔梁箍筋焊接并立模浇筑混凝土，预埋法兰盘钢板及连接螺栓，将横隔梁改为横隔板；主拱圈植筋，焊接并绑扎钢筋骨架，于所述主拱圈内部架设、拼接螺旋钢管；搭模浇铸。通过植筋连接形成整体，螺旋钢管与新混凝土之间通过栓钉连接形成整体，保证了新老结构协同受力，增强了双曲拱桥整体性，内部设置螺旋钢管，降低了混凝土材料的消耗，螺旋钢管作为受力构件也可承担部分施工荷载。
Two-way curved arch bridge steel pipe sleeve arch reinforcing method
一种双曲拱桥钢管套拱加固方法
YANG ZUTAO (author) / HUO WENJIAN (author) / WANG LIANG (author) / XU LIANG (author) / YANG RONGHAO (author) / ZHENG MING (author)
2024-03-15
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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