Rapid assembling type steel box-precast concrete plank bridge structure and construction method thereof

Abstract

The invention relates to a rapid assembling type steel box-precast concrete plank bridge structure and a construction method thereof. The structure comprises a plurality of steel box beams, a precast concrete deck panel and a shear transfer device, wherein the steel box beams are arranged at equal intervals, and every two adjacent steel box beams are connected through a truss type horizontal connector and a solid-web horizontal connector; an upper flange is arranged on the upper portion of each steel box beam, and horizontal connectors are welded between the upper flanges; the precast concrete deck panel is arranged on top of the steel box beams, and the shear transfer device is vertically welded to the upper flanges and inserted into the precast concrete deck panel. According to the structure, the industrial precast degree is high, construction quality is reliable, site assembly is quick, and interference with under-bridge traffic in the construction period is reduced due to the fact that the support-free construction technique is adopted.

Description

【Technical field】 [0001] The invention relates to a bridge and a construction method thereof, in particular to a rapidly assembled steel box-prefabricated concrete slab bridge structure and a construction method thereof, belonging to the technical field of bridge engineering. 【Background technique】 [0002] Steel-concrete composite girder bridges can give full play to the respective advantages of steel and concrete materials, and the girder height is small, so this type of bridge has been widely used. [0003] In traditional composite girder bridges, after the steel girders are erected, the support formwork system is erected, and all or part of the concrete panels are cast in place. This type of structure mainly has the following disadvantages: 1. Large amount of cast-in-place, slow construction speed, and difficult to guarantee construction quality; 2. Early shrinkage of concrete is likely to cause cracking of the bridge deck; 3. The construction load is large, and it is ne...

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Problems solved by technology

This type of structure mainly has the following disadvantages: 1. The amount of cast-in-place is large, the construction speed is slow, and the construction quality is difficult to guarantee; 2. The early shrinkage of the concrete is likely to cause cracking of the bridge deck; 3. The construction load is large, and it is necessary to erect supports and template

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