Corbel bracket for cast-in-place concrete construction at top of bridge pier

Abstract

The invention discloses a corbel bracket for cast-in-place concrete construction at the top of a bridge pier. The corbel bracket comprises a plurality of horizontal rod pieces arranged on the large-mileage side and the small-mileage side of the bridge pier. A plurality of first diagonal bars are correspondingly arranged below the horizontal rod pieces; a plurality of second diagonal bars are correspondingly arranged below the first diagonal bars; both the upper ends of the first diagonal bars and the upper ends of the second first diagonal bars are connected with the horizontal rod pieces above the first diagonal bars and the second diagonal bars; a plurality of first box bodies corresponding to the first diagonal bars, a plurality of second box bodies corresponding to the second diagonal bars and a plurality of third box bodies corresponding to the horizontal rod pieces are arranged on the bridge pier; the lower ends of the first diagonal bars are connected with the first box bodies; the lower ends of the second diagonal bars are connected with the second box bodies; one ends of the horizontal rod pieces are connected with the third box bodies; the horizontal rod pieces are connected with a plurality of prestressed pull rods in a fastening manner. The corbel bracket overcomes the defects of high requirements on the length and quality of weld joints between the horizontal rod pieces and the third boxes and difficulty in meeting the requirements on the length and quality of the weld joints on site.

Description

technical field [0001] The invention relates to a corbel, in particular to a corbel for the construction of cast-in-place concrete on the top of a bridge pier. Background technique [0002] At present, when performing cast-in-place concrete construction on the top of the bridge pier, the existing technology uses pre-embedded steel plates on the pier body, welded with corbels composed of section steel or steel plates, as a support system for cast-in-place 0# blocks, and then laying vertical and horizontal distribution on the top Beams and formwork systems are used for cast-in-place construction. The existing technology has the following disadvantages during use: 1. Because the cantilever at both ends is too long and the weight is large, the horizontal load and bending moment borne by the corbel horizontal member will become very large. The corbels need to be specially designed to ensure that the force meets the requirements, and all the force of the corbel horizontal members ...

AI Technical Summary

Problems solved by technology

The corbel bracket overcomes the defects of the weld length between the horizontal bar and the third box, high quality requirements, and difficulty on site, thereby speeding up the on-site welding operation and improving the construction progress

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