Seamless telescopic device between main girder and abutment with built-in corrugated steel plate and its construction method

Abstract

The invention discloses a corrugated steel plate built-in seamless expansion device between a girder and a bridge abutment and a construction method of the seamless expansion device. The expansion device comprises prefabricated steel plate elements distributed on a bridge abutment expansion joint and expansion joint filler packing layer filled above the prefabricated steel plate elements; the prefabricated steel plate elements comprise straight steel plates, corrugated steel plates and a plurality of arched reinforcing steel bars; a plurality of shear pins are fixed on the corrugated steel plates; a sliding layer is paved on the girder exposed section; the construction method of the to-be-repaired expansion device comprises the following steps: cleaning the original bridge expansion device, constructing preserved mounting grooves, constructing the girder sliding layer, assembling the prefabricated steel plate elements in the field, and mounting and constructing the expansion joint filler packing layer; the construction method of the to-be-constructed expansion device comprises the following steps: prefabricating and processing the prefabricated steel plate elements, assembling the prefabricated steel plate elements in the field, constructing the girder sliding layer, mounting the prefabricated steel plate elements, and constructing the bridge deck pavement structure and the expansion joint filler packing layer. The corrugated steel plate built-in seamless expansion device disclosed by the invention is reasonable in design, convenient to construct, and good in use effect, and can solve a plurality of problems in the existing expansion device.

Description

technical field [0001] The invention belongs to the technical field of bridge expansion joint construction, and in particular relates to a seamless expansion device between a main girder and an abutment with a built-in corrugated steel plate and a construction method thereof. Background technique [0002] The bridge expansion device is a device installed at the expansion joint of the bridge deck in order to make the vehicle pass through the bridge deck smoothly and meet the needs of the bridge deck deformation. The expansion joint directly bears the repeated load of the wheel. Even if there is a small unevenness, the structure will be subject to a great impact under the load of the car, which is easily damaged and needs to be repaired and replaced; at the same time, the design and construction are slightly Defects and deficiencies will lead to early damage; moreover, the stiffness of the expansion joints of the bridge deck changes suddenly, and under the repeated action of f...

AI Technical Summary

Problems solved by technology

But at present, the research on seamless structure is still in its infancy, with few structural forms and limited application.

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