A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Multi-span truss arch bridge dismantling process
The invention discloses a multi-span truss arch bridge demolition process, which comprises an arch structure chiseling step, an arch rib chiseling step and a bridge substructure demolition step, in the arch structure chiseling step, any one of connecting parts of a bridge floor and two bridge piers is chiseled to separate the bridge floor from the bridge piers and expose arch feet of the arch ribs, and the bridge substructure demolition step is used for demolition of the bridge substructure. In the arch rib chiseling step, the exposed arch springing of the arch rib is chiseled, so that one end of the arch rib is separated from the bridge pier, and the arch rib and the bridge floor vertically collapse under the action of gravity, so that the upper structure of the arch bridge is dismantled, and in the bridge lower structure dismantling step, the bridge pier is chiseled by using a long-arm gun machine and an excavator. According to the multi-span truss arch bridge dismantling process, a steel pipe supporting frame does not need to be erected below the ribs, consumed time is short, arch pieces do not need to be hoisted through a crane, and the construction safety risk is low.
本发明公开了一种多跨桁架拱桥拆除工艺，包括拱上结构凿除步骤、拱肋凿除步骤与桥梁下部结构拆除步骤，在拱上结构凿除步骤中，凿除桥面与两桥墩的连接部位中任一连接部位，以使桥面与桥墩分离，并露出拱肋的拱脚，在拱肋凿除步骤中，凿除露出的拱肋的拱脚，以使拱肋一端与桥墩分离，拱肋及桥面将在重力作用下垂直垮塌，以完成拱桥上部结构拆除，在桥梁下部结构拆除步骤中，利用长臂炮机及挖机凿除桥墩，该多跨桁架拱桥拆除工艺无需在肋下搭设钢管支撑架，耗时短，且无需利用吊机吊装拱片，施工安全风险低。
Multi-span truss arch bridge dismantling process
The invention discloses a multi-span truss arch bridge demolition process, which comprises an arch structure chiseling step, an arch rib chiseling step and a bridge substructure demolition step, in the arch structure chiseling step, any one of connecting parts of a bridge floor and two bridge piers is chiseled to separate the bridge floor from the bridge piers and expose arch feet of the arch ribs, and the bridge substructure demolition step is used for demolition of the bridge substructure. In the arch rib chiseling step, the exposed arch springing of the arch rib is chiseled, so that one end of the arch rib is separated from the bridge pier, and the arch rib and the bridge floor vertically collapse under the action of gravity, so that the upper structure of the arch bridge is dismantled, and in the bridge lower structure dismantling step, the bridge pier is chiseled by using a long-arm gun machine and an excavator. According to the multi-span truss arch bridge dismantling process, a steel pipe supporting frame does not need to be erected below the ribs, consumed time is short, arch pieces do not need to be hoisted through a crane, and the construction safety risk is low.
本发明公开了一种多跨桁架拱桥拆除工艺，包括拱上结构凿除步骤、拱肋凿除步骤与桥梁下部结构拆除步骤，在拱上结构凿除步骤中，凿除桥面与两桥墩的连接部位中任一连接部位，以使桥面与桥墩分离，并露出拱肋的拱脚，在拱肋凿除步骤中，凿除露出的拱肋的拱脚，以使拱肋一端与桥墩分离，拱肋及桥面将在重力作用下垂直垮塌，以完成拱桥上部结构拆除，在桥梁下部结构拆除步骤中，利用长臂炮机及挖机凿除桥墩，该多跨桁架拱桥拆除工艺无需在肋下搭设钢管支撑架，耗时短，且无需利用吊机吊装拱片，施工安全风险低。
Multi-span truss arch bridge dismantling process
一种多跨桁架拱桥拆除工艺
YUAN JIN (author) / WEI DENGCHAO (author) / QIU SHENGWEI (author) / WANG JINGGUANG (author) / CHEN TIANZHOU (author)
2023-04-04
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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