A prefabricated bridge structure

Abstract

The invention discloses an assembled bridge structure, which comprises a main girder and a bridge pier for supporting the main girder, on the upper end surface of the bridge pier along the longitudinal direction of the bridge, a non-penetrating chute is arranged, on the main girder The bottoms of both ends of the beam are provided with convex ribs corresponding to the chute, and the chute is slidingly matched with the convex rib; the present invention provides an impermeable chute, and when encountering mountainous highways or rivers, etc. When the longitudinal slope of the terrain is large, it can be allowed to slide naturally for a certain distance, and at the same time, the longitudinal position of the main girder can be limited, which can prevent the excessive longitudinal slip of the main girder during operation and avoid the maintenance caused by the slip Trouble. By arranging the support, the sliding process can also reduce the damage of the main girder to the bridge pier, and at the same time, it can also absorb the vibration of the bridge deck.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to an assembled bridge structure. Background technique [0002] The prefabricated bridge has reliable quality, intelligent steel bar processing, factory-like component prefabrication, and standardized construction procedures. High-precision positioning ensures the inherent quality of bridge prefabricated components. One of the main advantages of prefabricated bridges is that they are built quickly and have little interference with surrounding traffic. While carrying out pile foundation construction, it is also possible to prefabricate pier columns, bridge abutments and beam slabs, and install them while constructing. Make full use of the time period when the traffic interference is small at night, block one or two lanes, and then the assembly of bridge components can be carried out. For highway bridges or urban viaducts, due to design requirements, there are often stan...

AI Technical Summary

Problems solved by technology

[0003] However, during the use of the current prefabricated bridges, considering that the terrain such as mountainous highways or rivers has a large longitudinal slope, under the action of perennial temperature, the upper structure tends to move downhill, which is likely to affect the overall service life of the bridge. Therefore, it is necessary to Increase the longitudinal limit measures of the main girder to prevent the longitudinal slippage of the main girder during operation

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