Beam replacement construction system of double-T beam bridge

Abstract

The invention relates to the technical field of beam replacement equipment of a double-T beam bridge and provides a beam replacement construction system of the double-T beam bridge. The beam replacement construction system comprises a beam replacement machine arranged at the position of beam replacement, the beam replacement machine comprises a main beam, two beam hanging carts capable of moving along the lengthwise direction of the main beam are arranged on the main beam, the main beam is erected on the bridge floor through a front guide pillar and a rear guide pillar, both the front guide pillar and the rear guide pillar are of telescopic structures, the beam replacement process is unaffected by natural conditions such as wind and cannot cause deviation to a fall beam, and beam replacement efficiency is improved; one set of special beam conveying trains, beam conveying carts and inverted gantries which are used for conveying an old beam and docking a new beam are respectively arranged on two sides of the beam replacement machine. By the arrangement, lifting height of the equipment can be effectively reduced during construction, team replacement of T-shaped beams is smoothly completed under the working conditions of construction limit requirements, and the fact that beam replacement construction of the full-span simply-supported T-shaped beams in a 'skylight point' is completed safely and efficiently on the premise of not causing any unnecessary impacts on original line equipment can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of frame changing equipment for double T-shaped beam bridges, in particular to a beam changing construction system for double T-shaped beam bridges. Background technique [0002] In view of the serious disease of old beams of some railway bridges in our country and the urgent need to replace them, in the past, in the construction of bridge replacements on existing railway lines, it was necessary to close the lines for a long time, and build temporary sidewalks or bridges for vehicles to pass at a speed limit , and then use the bridge erecting machine or erect brackets under the bridge to complete the construction work of hole-by-hole frame replacement, which is costly, long-term, heavy workload, and has a great impact on the normal operation of existing lines. Contents of the invention [0003] The object of the present invention is to propose a beam replacement construction system that can safely and effi...

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Problems solved by technology

[0002] In view of the serious disease of old beams of some railway bridges in our country and the urgent need to replace them, in the past, in the construction of bridge replacements on existing railway lines, it was necessary to close the lines for a long time, and build temporary sidewalks or bridges for vehicles to pass at a speed limit , and then use the bridge erecting machine or erect brackets under the bridge to complete the construction work of hole-by-hole replacement. The cost is high, the construction period is long, the workload is heavy, and it has a great impact on the normal operation of the existing lines.

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