A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Combined construction method for reinforced concrete arch bridge
The invention provides a combined construction method for a reinforced concrete arch bridge. The combined construction method comprises the following steps: constructing a first arch seat, a second arch seat, a first arch rib and a second arch rib; obtaining a tension cable force required by a buckle cable on a swivel construction side through trial calculation and finite element simulation iteration; the buckle cables and the back wall prestressed steel beams are tensioned synchronously; the first support on the swivel construction side is dismantled; the back wall support is dismantled, and the supporting frame and the sand box at the spherical hinge are dismantled; weighing the swivel structure, and adjusting the quantity of gravels according to the weighing condition; after counterweight balance is completed, the jack at the jacking frame is dismounted; performing rotation test operation on the rotation structure; formal rotation operation is carried out on the rotation structure, and posture adjustment and linear adjustment are carried out on the rotation structure after the rotation structure is rotated in place; the supporting feet are cushioned, connecting steel bars are welded, wind-resistant cables and hinge sealing formworks are installed, and hinge sealing concrete is poured; and closure section construction is conducted. According to the method, construction terrain constraints are overcome, the construction cost is saved, and safety and quality are guaranteed.
本申请提供一种钢筋混凝土拱桥组合施工方法，其包括：第一拱座、第二拱座、第一拱肋、第二拱肋施工；通过试算和有限元模拟迭代获取转体施工侧的扣索所需的张拉索力；分别同步张拉扣索、背墙预应力钢束；拆除转体施工侧的第一支架；拆除背墙支撑，拆除球铰处的支撑架和砂箱；对转体结构进行称重，并根据称重情况调整砂砾数量；完成配重平衡后拆除顶升架处的千斤顶；对转体结构进行试转体操作；对转体结构进行正式转体操作，将转体结构转动就位后，对转体结构进行姿态调整和线形调整；对撑脚进行抄垫，并焊接连接钢筋，安装抗风索、封铰模板，并浇筑封铰砼；进行合拢段施工。该方法克服了施工地形约束，节约了施工成本，保证了安全与质量。
Combined construction method for reinforced concrete arch bridge
The invention provides a combined construction method for a reinforced concrete arch bridge. The combined construction method comprises the following steps: constructing a first arch seat, a second arch seat, a first arch rib and a second arch rib; obtaining a tension cable force required by a buckle cable on a swivel construction side through trial calculation and finite element simulation iteration; the buckle cables and the back wall prestressed steel beams are tensioned synchronously; the first support on the swivel construction side is dismantled; the back wall support is dismantled, and the supporting frame and the sand box at the spherical hinge are dismantled; weighing the swivel structure, and adjusting the quantity of gravels according to the weighing condition; after counterweight balance is completed, the jack at the jacking frame is dismounted; performing rotation test operation on the rotation structure; formal rotation operation is carried out on the rotation structure, and posture adjustment and linear adjustment are carried out on the rotation structure after the rotation structure is rotated in place; the supporting feet are cushioned, connecting steel bars are welded, wind-resistant cables and hinge sealing formworks are installed, and hinge sealing concrete is poured; and closure section construction is conducted. According to the method, construction terrain constraints are overcome, the construction cost is saved, and safety and quality are guaranteed.
本申请提供一种钢筋混凝土拱桥组合施工方法，其包括：第一拱座、第二拱座、第一拱肋、第二拱肋施工；通过试算和有限元模拟迭代获取转体施工侧的扣索所需的张拉索力；分别同步张拉扣索、背墙预应力钢束；拆除转体施工侧的第一支架；拆除背墙支撑，拆除球铰处的支撑架和砂箱；对转体结构进行称重，并根据称重情况调整砂砾数量；完成配重平衡后拆除顶升架处的千斤顶；对转体结构进行试转体操作；对转体结构进行正式转体操作，将转体结构转动就位后，对转体结构进行姿态调整和线形调整；对撑脚进行抄垫，并焊接连接钢筋，安装抗风索、封铰模板，并浇筑封铰砼；进行合拢段施工。该方法克服了施工地形约束，节约了施工成本，保证了安全与质量。
Combined construction method for reinforced concrete arch bridge
一种钢筋混凝土拱桥组合施工方法
CAO HONGYOU (author) / YANG ZHEN (author) / LI PENG (author) / FAN JIANFENG (author) / LI BO (author)
2024-03-01
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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