Pre-assembled box culvert for high-speed road and bridge construction and construction process thereof

Abstract

The invention relates to a pre-assembled box culvert for high-speed road and bridge construction, which comprises a top formwork and a side wall board supporting the top formwork, the side wall boardcomprises a base and a support platform on the base, the base and the support platform is formed into an inverted T-shape, and the inner side of the base is provided with cast steel bars, the upper end of the support platform is provided with a V-shaped groove or a U-shaped groove, and the outer side of the support platform is provided with a lower hanging steel bar hook, and the lower hanging steel bar hook and the cast steel bars are arranged in parallel; the lower end of the top formwork is provided with an engaging portion conforming to the groove type of the V-shaped groove or the U-shaped grooved, and the upper plate surface of the top formwork is provided with an upper hanging steel bar hook, which is provided with a connection hole along the long direction of the top formwork platefor the connection and fixation of the bend bolts .

Description

Technical field [0001] The invention relates to a prefabricated assembled box culvert, in particular to a prefabricated assembled box culvert for highway bridge construction and a construction technology thereof. Background technique [0002] The existing construction of prefabricated box culverts for expressway and bridge construction directly adopts the axis lofting method for construction, that is, on the established concrete foundation, the center line is drawn along its length in the middle position, and the side wall panel is calculated according to the calculation. The side wall panels are placed in sequence from the center line. Although this construction method is simple, there is a large installation deviation of the subsequent side wall panels on the left and right sides of the center line when the side wall panels are actually placed. The board is easy to form a wrong platform, and the construction and installation accuracy is not high. Summary of the invention [000...

AI Technical Summary

Problems solved by technology

[0002] The existing construction of prefabricated assembled box culverts for expressway and bridge construction directly adopts the axis lofting method for construction, that is, on the established concrete foundation, draw the center line along its length direction at the middle position, and according to the calculated side wall The distance from the center line is to place the side wall panels in sequence. Although this construction method is simple, there is a relatively large installation deviation when the subsequent side wall panels are located on the left and right sides of the center line when the side wall panels are actually placed, so that the left and right side walls The board is easy to form a wrong platform, and the construction and installation accuracy is not high

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