Turning method of double-guide-girder bridge girder erection machine
A bridge erecting machine and guide beam technology, which is applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of time-consuming, large site requirements, and complicated operations such as re-obtaining forensics, so as to eliminate the hidden dangers of hoisting and installation safety. The effect of short time and simple steps
Active Publication Date: 2020-12-18
CCCC SECOND HARBOR ENG
View PDF14 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
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...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a turning method of a double-guide-girder bridge girder erection machine. The turning method comprises the following steps of Step 1, distributing and arranging an auxiliary middle supporting leg at the bottom of a main girder between a front supporting leg and a middle supporting leg; Step 2, jacking and lifting the bridge girder erection machine by the front supporting leg, the auxiliary middle supporting leg and a rear supporting leg, so that the middle supporting leg is disengaged, and the middle supporting leg is heightened; Step 3, contracting and disengaging thefront supporting leg, so that the auxiliary middle supporting leg, the rear supporting leg and the middle supporting leg support the bridge girder erection machine; Step 4, dismounting the front supporting leg, and hoisting the front supporting leg to a position behind the rear supporting leg by a hoisting crane, and installing the front supporting leg on the lower part of the main girder; and Step 5, dismounting a front auxiliary supporting leg, and hoisting the front auxiliary supporting leg to the rear end of the bridge girder erection machine through the hoisting crane, and installing thefront auxiliary supporting leg at the lower part of the main girder. Auxiliary equipment such as other cranes is not needed; in-situ turning of the bridge girder erection machine is realized; the turning work efficiency is comprehensively improved; and the turning method can be widely applied to the technical field of the bridge girder erection machine operation.
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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More 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