New assembled seamless telescopic device and its construction method

Abstract

The invention relates to a novel assembly type seamless expansion device and a construction method thereof. The novel assembly type seamless expansion device comprises main girder span expansion device bodies arranged on a construction bridge and expansion device bodies arranged on the portions, at bridge abutment expansion seams, of bridge abutments of the construction bridge, and each main girder expansion seam and each bridge abutment expansion seam are each provided with one expansion device body. Accordingly, the device and a deck can be paved to form a continuous whole body, the problemsthat bridge expansion seams are prone to bridge surface roughness, dislocation, distortion, expansion seam irregularity and the like can be solved, and driving is stable and comfortable; by arrangingrubber pads between comb type span seam steel plates and telescopic corrugated steel plates, driving noise can be reduced, the defects that traditional expansion seams are prone to leakage, and the service life in bad conditions is short can be overcome, and the maintenance workload is low. In addition, the device has the advantages that the input cost is low, the stress performance is good, thedurability is good, the practicability is high, and maintaining and replacing are conducted conveniently.

Description

Technical field: [0001] The invention belongs to the technical field of bridge engineering expansion joint design and construction, in particular to a bridge seamless expansion device and a construction method thereof. Background technique: [0002] With the rapid development of my country's economy, the traffic volume of roads has increased sharply, the speed of vehicles on roads and the load of vehicles have continued to increase, and people's requirements for driving comfort have become higher and higher. Therefore, in the past, insufficient attention was paid to bridge design and construction. The problems related to the expansion joint device, such as the damage of the expansion joint, the blockage of the slot, the jamming and the fracture of the expansion joint, the driving safety accidents, the corrosion of the anchor head of the prestressed steel bar and the water damage of the support, etc., have become more and more serious. protrude. [0003] The expansion joints o...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to address the above-mentioned deficiencies in the prior art, overcome the defects of existing bridge expansion devices, and provide a new type of assembled seamless expansion device with simple structure, reasonable design and convenient construction. It can avoid problems such as water leakage, breakage and loud noise of the expansion joint, improve the driving comfort and reduce the maintenance and repair workload of the expansion joint device

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