Method for constructing precast coping for bridge

Abstract

The present invention relates to a method for constructing precast coping for a bridge, including: primary segment manufacturing engineering, performing match cast to a model and an upper surface of a top segment of the bridge main body segments to form a first transverse sleeve perforated be a transverse tension piece; secondary segment manufacturing engineering, performing match cast by using two side faces of the primary segments as a model to form a secodn transverse sleeve; transverse tension forming engineering, after the two side faces of the primary segments are combined with the secondary segment, forming transverse tension by inserting transverse tension pieces to the first and second transverse sleeves; and longitudinal tension forming engineering, after lifting the primary segments combined with the secondary segment and laminated to the top end of the bridge main body segments, forming longitudinal tension by a longitudinal tension piece in the longitudinal sleeve. The method is suitable for middle and minitype bridges, can rapidly construct, and can further form tension by tension pieces. In manufacturing segments, a lifting projection is formed on the upper surface of the segments so as to easily lift the coping assembled on the ground by lifting the projection.

Description

technical field [0001] The present invention relates to a construction method of bridge prefabricated pier caps, more specifically, to a construction method of bridge prefabricated pier caps, that is, matching pouring is performed on the upper surface of the main body of the pier to make the main section, and the two sides of the main section Matching pouring is done on the sides to make auxiliary blocks, and transverse tension is formed through tension members, and lifting protrusions are set on the upper ends of the main blocks or auxiliary blocks. Background technique [0002] In the upper part of the pier, in order to support the girder, it is necessary to form a pier cap having a width corresponding to the transverse width of the bridge at the upper end of the main part of the pier. In the past, the piers were constructed on site starting from the bottom. A mold was assembled and set on the upper part of the pier, concrete was poured, and after it hardened, the mold was...

AI Technical Summary

Problems solved by technology

[0014] However, the light pier caps of the above-mentioned bridges have the same length as the width of the bridge, so they are not easy to move after they are made, and because of their weight, they can hardly be used in practice except for small bridges

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