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A platform for research: civil engineering, architecture and urbanism
Dismantling method of steel arch frame for box type reinforced concrete arch bridge construction
The invention relates to a dismantling method of a steel arch frame for box type reinforced concrete arch bridge construction. The steel arch frame is divided into a vault section, two haunch sections and two arch springing sections. Two winches are arranged on the two sides, right opposite to the arch crown section, of the bridge respectively, and buckling towers are arranged on the two banks respectively; two cross beams are arranged at the two ends of the arch crown section in a penetrating mode in the transverse bridge direction, one cross beam is arranged in each haunch section and each arch foot section in a penetrating mode, the cross beams arranged in the arch crown section in the penetrating mode are firmly connected with winches on the two sides of the bridge, and the cross beams arranged in the haunch sections and the arch foot sections in the penetrating mode are firmly connected with buckling towers on the two banks through steel strands; the arch crown section is firstly put down to a transport ship through a winch, then the haunch section and the arch springing section are integrally and vertically rotated downwards, the haunch section on the left side is supported to the transport ship, the haunch section is dismantled, finally, the arch springing section is vertically rotated to the transport ship, and the arch springing section is dismantled. The arch center dismantling efficiency and safety are high, and damage to a bridge structure can be avoided.
本发明涉及一种箱型钢筋混凝土拱桥施工用钢拱架的拆除方法，将钢拱架划分为一拱顶节段、两拱腰节段和两拱脚节段；在桥上正对拱顶节段两侧分别设置两台卷扬机，在两岸分别设置一扣塔；在拱顶节段两端分别横桥向穿设两根横梁，在每个拱腰节段和拱脚节段中穿设一根横梁，将拱顶节段中穿设的横梁与桥上两侧的卷扬机连接牢固，将拱腰节段和拱脚节段中穿设的横梁与两岸扣塔通过钢绞线连接牢固；先通过卷扬机将拱顶节段下放到运输船上，再将拱腰节段和拱脚节段整体向下竖转，将左侧拱腰节段支撑到运输船上，拆除拱腰节段，最后将拱脚节段竖转到运输船上，拆除拱脚节段。本发明拱架拆除效率和安全性高，并可避免对桥梁结构造成损伤。
Dismantling method of steel arch frame for box type reinforced concrete arch bridge construction
The invention relates to a dismantling method of a steel arch frame for box type reinforced concrete arch bridge construction. The steel arch frame is divided into a vault section, two haunch sections and two arch springing sections. Two winches are arranged on the two sides, right opposite to the arch crown section, of the bridge respectively, and buckling towers are arranged on the two banks respectively; two cross beams are arranged at the two ends of the arch crown section in a penetrating mode in the transverse bridge direction, one cross beam is arranged in each haunch section and each arch foot section in a penetrating mode, the cross beams arranged in the arch crown section in the penetrating mode are firmly connected with winches on the two sides of the bridge, and the cross beams arranged in the haunch sections and the arch foot sections in the penetrating mode are firmly connected with buckling towers on the two banks through steel strands; the arch crown section is firstly put down to a transport ship through a winch, then the haunch section and the arch springing section are integrally and vertically rotated downwards, the haunch section on the left side is supported to the transport ship, the haunch section is dismantled, finally, the arch springing section is vertically rotated to the transport ship, and the arch springing section is dismantled. The arch center dismantling efficiency and safety are high, and damage to a bridge structure can be avoided.
本发明涉及一种箱型钢筋混凝土拱桥施工用钢拱架的拆除方法，将钢拱架划分为一拱顶节段、两拱腰节段和两拱脚节段；在桥上正对拱顶节段两侧分别设置两台卷扬机，在两岸分别设置一扣塔；在拱顶节段两端分别横桥向穿设两根横梁，在每个拱腰节段和拱脚节段中穿设一根横梁，将拱顶节段中穿设的横梁与桥上两侧的卷扬机连接牢固，将拱腰节段和拱脚节段中穿设的横梁与两岸扣塔通过钢绞线连接牢固；先通过卷扬机将拱顶节段下放到运输船上，再将拱腰节段和拱脚节段整体向下竖转，将左侧拱腰节段支撑到运输船上，拆除拱腰节段，最后将拱脚节段竖转到运输船上，拆除拱脚节段。本发明拱架拆除效率和安全性高，并可避免对桥梁结构造成损伤。
Dismantling method of steel arch frame for box type reinforced concrete arch bridge construction
箱型钢筋混凝土拱桥施工用钢拱架的拆除方法
SU JINTANG (author) / LI YOUQING (author) / ZHANG HUAWU (author) / ZENG XIANGJI (author) / WANG CHUNJIAN (author) / WU RUIHUAN (author) / HE LU (author) / LI SHUAI (author) / GAN SHUKUAN (author)
2024-10-22
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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