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Construction method of walking type bent cap operation platform
The invention relates to a construction method of a walking type bent cap operation platform, which comprises the following specific steps: hoisting an overhanging frame to a bridge floor by a truck crane, applying a balancing weight to the rear end of the overhanging frame, inserting an auxiliary reinforcing steel bar between small box girder wet joint reinforcing steel bars, connecting the overhanging frame and the auxiliary reinforcing steel bar by two steel wire ropes, and anchoring; lifting the suspension cage by the truck crane, reducing the lifting speed when the suspension cage is about to approach the bottom of the cantilever frame, performing fine adjustment alignment, and manually connecting the cantilever frame with the suspension cage through bolts; lifting the bottom basket by the truck crane and the electric hoist, reducing the lifting speed when the bottom basket is about to approach the bottom of the cage, performing fine adjustment and alignment, manually connecting the bottom basket with the cage by bolts to ensure that each bolt is in a screwed state, and finally releasing anchored steel wire ropes and removing auxiliary steel bars; and mounting a suspender. Theworking platform directly acts on a small box girder bridge floor, does not hinder road traffic on the two sides, does not occupy the lower construction space, and is small in mounting and dismounting workload and safe and reliable in construction.
本发明是一种行走式盖梁作业平台的施工方法,具体步骤为:汽车吊吊装悬挑框架至桥面上,悬挑框架后端施加配重块,小箱梁湿接缝钢筋间插入一根辅助钢筋,并采用两根钢丝绳将悬挑框架与辅助钢筋连接,并进行锚固;汽车吊吊装吊笼上提,待将要接近悬挑框架底部时降低上提速度,并进行微调对位,人工将悬挑框架与吊笼进行螺栓连接;汽车吊与电动葫芦吊装底篮上提,待将要接近吊笼底部时降低上提速度,并进行微调对位,人工将底篮与吊笼进行螺栓连接,保证每个螺栓达到拧紧状态,最后释放锚固的钢丝绳,拆除辅助钢筋;安装吊杆。本发明作业平台直接作用于小箱梁桥面,不阻碍两侧道路交通、不占用下方施工空间,安拆工作量小,施工安全可靠。
Construction method of walking type bent cap operation platform
The invention relates to a construction method of a walking type bent cap operation platform, which comprises the following specific steps: hoisting an overhanging frame to a bridge floor by a truck crane, applying a balancing weight to the rear end of the overhanging frame, inserting an auxiliary reinforcing steel bar between small box girder wet joint reinforcing steel bars, connecting the overhanging frame and the auxiliary reinforcing steel bar by two steel wire ropes, and anchoring; lifting the suspension cage by the truck crane, reducing the lifting speed when the suspension cage is about to approach the bottom of the cantilever frame, performing fine adjustment alignment, and manually connecting the cantilever frame with the suspension cage through bolts; lifting the bottom basket by the truck crane and the electric hoist, reducing the lifting speed when the bottom basket is about to approach the bottom of the cage, performing fine adjustment and alignment, manually connecting the bottom basket with the cage by bolts to ensure that each bolt is in a screwed state, and finally releasing anchored steel wire ropes and removing auxiliary steel bars; and mounting a suspender. Theworking platform directly acts on a small box girder bridge floor, does not hinder road traffic on the two sides, does not occupy the lower construction space, and is small in mounting and dismounting workload and safe and reliable in construction.
本发明是一种行走式盖梁作业平台的施工方法,具体步骤为:汽车吊吊装悬挑框架至桥面上,悬挑框架后端施加配重块,小箱梁湿接缝钢筋间插入一根辅助钢筋,并采用两根钢丝绳将悬挑框架与辅助钢筋连接,并进行锚固;汽车吊吊装吊笼上提,待将要接近悬挑框架底部时降低上提速度,并进行微调对位,人工将悬挑框架与吊笼进行螺栓连接;汽车吊与电动葫芦吊装底篮上提,待将要接近吊笼底部时降低上提速度,并进行微调对位,人工将底篮与吊笼进行螺栓连接,保证每个螺栓达到拧紧状态,最后释放锚固的钢丝绳,拆除辅助钢筋;安装吊杆。本发明作业平台直接作用于小箱梁桥面,不阻碍两侧道路交通、不占用下方施工空间,安拆工作量小,施工安全可靠。
Construction method of walking type bent cap operation platform
一种行走式盖梁作业平台的施工方法
DONG JIANYUE (Autor:in) / DING WANQIANG (Autor:in) / LI XIONGFENG (Autor:in) / YANG XUEJIAN (Autor:in) / LIU XIANGDONG (Autor:in) / LI JINYONG (Autor:in)
04.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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