Outrigger-lifting type bridge deck erecting machine and bridge deck erecting method

Abstract

The invention discloses an outrigger-lifting type bridge deck erecting machine and a bridge deck erecting method and relates to the technical field of bridge maintenance, reinforcement, reconstruction project and construction. The outrigger-lifting type bridge deck erecting machine comprises a main structure, a support mechanism and a hoisting device, wherein the main structure comprises two main girders which are arranged oppositely; a first crossbeam is fixed between the ends at one side of the two main girders and a second crossbeam is fixed between the ends at the other side of the two main girders; the two main girders are segmental structures; the support mechanism comprises a front outrigger, a middle outrigger and a rear outrigger which are fixed to the two main girders and are all provided with telescopic devices; the telescopic devices enable the front outrigger, the middle outrigger and the rear outrigger to stretch and contract; the rear outrigger comprises a folding device which is connected with the first crossbeam; the folding device drives the rear outrigger to fold around the first crossbeam; traveling devices are respectively arranged at the lower part of the middle outrigger and the rear outrigger and can travel along the longitudinal and transverse direction of a bridge; the hoisting device comprises a bridge crane and a hoisting apparatus; the hoisting apparatus is arranged at the lower part of the bridge crane; and the bridge crane can lift and lower the hoisting apparatus and can also move along the longitudinal and transverse direction of the bridge. The outrigger-lifting type bridge deck erecting machine has the advantage of convenient disassembly and assembly and has the function of longitudinal movement and transverse movement.

Description

technical field [0001] The invention relates to the technical field of bridge maintenance, reinforcement and transformation engineering construction, in particular to a leg-lifting type erecting machine and a method for erecting the plank. Background technique [0002] The Jiujiang Yangtze River Bridge is the first batch of large road-rail bridges in my country after the Wuhan Yangtze River Bridge, and it is also the longest road-rail bridge in my country with the largest engineering volume. With the increase of service life and traffic volume, the concrete deck of the original highway bridge has been damaged and fallen off. Because the railway business line underneath, there is a very serious safety hazard to the safe operation of the train. In 2015, it was formally inspected It has launched a comprehensive reinforcement and transformation. The main content of this reinforcement and transformation is to replace the original concrete bridge deck with a steel bridge deck with...

AI Technical Summary

Problems solved by technology

The height and width of the construction space are greatly restricted due to the three arch structures and half-width construction

Due to the half-width construction, the equipment needs to be disassembled and assembled multiple times. Based on the above conditions, the existing hoisting equipment, bridge erecting machines, and beam erecting machines cannot meet the installation requirements of the new steel bridge deck.

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