Connection method of prefabricated reinforced concrete block assembled bridge piers

Abstract

The invention discloses a method for connecting assembly type bridge pier abutments through prefabricated reinforced concrete blocks. The method comprises the steps that a plurality of first reinforced concrete blocks are poured, wherein each first reinforced concrete block is of a cuboid shape as a whole, the top end of each first reinforced concrete block is provided with a T-shaped groove, and a first through hole is formed in each first reinforced concrete block; a plurality of second reinforced concrete blocks are poured, wherein each second reinforced concrete block is of a cuboid shape as a whole, the four sides of each second reinforced concrete block are provided with T-shaped convex bodies with the height the same as that of the planes of the top ends of the block bodies, and the T-shaped convex bodies are matched with inverted-T-shaped grooves formed in the first reinforced concrete blocks; the second reinforced concrete blocks are provided with second through holes, the first reinforced concrete blocks of the upper layer are matched with the first reinforced concrete blocks of the lower layer, the second reinforced concrete blocks of the upper layer are matched with the second reinforced concrete blocks of the lower layer, and the reinforced concrete blocks of each layer are connected through steel bars. The method can effectively ensure that a plurality of layers of the pier abutments are reliably connected, and on-site fast assembling of the pier abutments can be achieved.

Description

technical field [0001] The invention relates to the technical field of bridge structures, in particular to a connection method for bridge piers. Background technique [0002] For bridges with small and medium spans, reinforced concrete and prestressed concrete simply supported girder bridges are the most widely used bridge types. Reinforced concrete and prestressed concrete simply supported girder bridges are single-hole statically indeterminate structures. They have clear force, simple structure, and convenient construction. They are the most widely used bridge types among small and medium-span bridges. The structural dimensions of simply supported girder bridges are easy to design in series and standardization, which is conducive to the widespread adoption of industrialized construction in factories or on construction sites, the organization of large-scale prefabricated production, and modern lifting equipment for installation. At present, most of the reinforced concrete ...

AI Technical Summary

Problems solved by technology

[0006] 1. When multi-layer construction is required, the bridge piers on each layer only rely on smooth round steel bars for positioning. On the one hand, this method is inaccurate in positioning, and it is difficult to install between layers. In addition, when encountering external forces , the connection between the bridge pier and abutment between the layers is not firm enough, and the bonding force is not strong

[0007] 2. When the smooth round steel bar is used for vertical connection, the pretightening force is required to be applied to the smooth round steel bar. The pretightening force is prone to stress loss and increases additional workload.

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