The invention relates to a method for hoisting a beam section in a sling area of a half-through basket arch bridge. The method comprises the following steps: a buoyancy tank is arranged in a river close to a sling hoisting area, two winches are respectively arranged on two banks of the river, and the two winches on one bank are connected with two ends of the upstream side of the buoyancy tank through traction ropes; the two winches on the other bank are connected with the two ends of the downstream side of the buoyancy tank through traction ropes respectively; the cable crane lifts the beam section to move from the position between the two arch ribs to the position above the buoyancy tank, and the beam section is lowered to the buoyancy tank; the four winches work cooperatively, the buoyancy tank is rotated by 90 degrees, and the buoyancy tank is dragged to the position below the to-be-installed position of the beam section; and the cable crane runs to the position above the buoyancy tank to enable the beam section to reach the installation height. The buoyancy tank and the winches are used for assisting rotation and transportation of the beam section, the situation that the beam section touches the arch rib in the transportation process is avoided, operation is easy and convenient, and cost is low.
本发明涉及一种中承式提篮拱桥吊索区梁段吊装方法,在河中靠近缆索吊起吊区设置一浮箱,在河两岸分别布设两台卷扬机,其中一岸的两台卷扬机分别通过牵引绳连接浮箱上游侧的两端,另一岸的两台卷扬机分别通过牵引绳连接浮箱下游侧的两端;缆索吊机起吊梁段从两幅拱肋之间移动到浮箱上方,并将梁段下放到浮箱上;4台卷扬机协同工作,将浮箱转体90°,并将浮箱拖拽到梁段待安装位置下方;缆索吊机运行到浮箱上方将梁段起到安装高度。本发明通过浮箱和卷扬机辅助梁段转体和运输,避免梁段运输过程中触碰到拱肋的情况,操作简便,成本低。
Method for hoisting beam section in sling area of half-through basket arch bridge
ZHOU JIANJUN / SUN ZHIYU / MO XIAOLONG / ZHANG JIE / ZHANG FAN / WANG JINCHAO / SUN YI / LI SHUAI
2024-05-28
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
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