A U-turning Method of Double Guide Girder Bridge Erecting Machine
A bridge erecting machine and guide beam technology, which is applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve problems such as time-consuming re-acquisition, large site requirements, complicated operations, etc., to eliminate safety hazards in hoisting and installation, The effect of short time consumption and simple steps
Active Publication Date: 2021-11-02
CCCC SECOND HARBOR ENG
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Problems solved by technology
[0004] 1. The method of dismantling the bridge erecting machine and reinstalling it requires a large site, complicated operation, large lifting equipment, high cost, and time-consuming re-acquisition;
Method used
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Embodiment 1
[0067] The steps of the U-turn method of the double guide girder bridge erecting machine include:
[0068] Step 1: After erecting the 40m beam slab, install the auxiliary middle outrigger 3 between the front outrigger 2 and the middle outrigger 4, and prepare to turn around;
[0069] Step 2: Remove the bolts below the 1m heightened section of the middle outrigger 4, jack up the front outrigger 2, auxiliary middle outrigger 3, and rear outrigger 5, and raise the main beam 1 by 50cm;
[0070] Step 3: Add a 44cm heightening joint to the middle outrigger 4, and move forward to a position about 3,30m away from the auxiliary middle outrigger to support the force;
[0071] Step 4: The rear outrigger 5 moves forward to a position close to the middle outrigger 4,5m to support the force;
[0072] Step 5, the front crane 7 is moved to the top of the front outrigger 2, and the rear crane 8 is moved to the top between the middle outrigger 4 and the rear outrigger 5 to balance the bridge e...
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The invention discloses a U-turn method for a double guide girder bridge erecting machine, comprising: S1: laying auxiliary middle outriggers at the bottom of the main girder between the front outriggers and the middle outriggers; S2: the front outriggers . The auxiliary middle outrigger and the rear outrigger are jacked up to elevate the bridge erecting machine, so that the middle outrigger is empty and the middle outrigger is increased; S3: Shrink the front outrigger to make the auxiliary The middle outrigger, the rear outrigger and the middle outrigger support the bridge erecting machine; S4: disassemble the front outrigger and hoist the front outrigger to the rear outrigger through the crane rear, install the front outrigger on the lower part of the main girder; S5: remove the front auxiliary outrigger and hoist the front auxiliary outrigger to the rear end of the bridge erecting machine through the crane crane, and place the The front auxiliary leg is installed on the lower part of the main beam. The invention does not need auxiliary equipment such as other cranes, realizes the in-situ U-turn of the bridge-erecting machine, improves the overall efficiency of the U-turn, and can be widely used in the technical field of bridge-erecting machine operations.
Description
technical field [0001] The invention relates to the technical field of bridge erecting machine operations. More specifically, the present invention relates to a U-turn method for a bridge erecting machine with double guide girders. Background technique [0002] The bridge erecting machine is used in the construction of numerous bridge superstructures. The girder bridge is a widely used structural form. Its main components include: foundation, piers, prefabricated beams and bridge deck from bottom to top. The bridge erecting machine is the key equipment in the construction process. Its function is to hoist the poured prefabricated beams to the designated installation position on the abutment. Due to the complicated erection lines and variable erection directions, the bridge erecting machine needs to be turned around many times. . [0003] At present, the U-turn method mainly adopted in the construction of bridge erecting machines at home and abroad and the existing deficien...
Claims
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IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 姚笛黄丰孙家林汪嘉伟罗晓兵廖昭郗永磊郑瑜刘昌义熊伟付少华周平唐积陈贤俊郑强
Owner CCCC SECOND HARBOR ENG