Construction method of prefabricated reinforced concrete block assembled bridge piers

Abstract

A construction method of a prefabricated reinforced concrete block prefabricated bridge pier is characterized in that a transverse block (1) with an inverted T-shaped through groove (3) in the upper side is poured, edge ribs (4) are formed on the two sides of the inverted T-shaped through groove (3), the shape of the lower side of the transverse block (1) is symmetric to a transverse shaft, and the transverse block (1) is provided with a round through hole (2); a longitudinal block (5) with a through groove (7) in one side to form an edge rib (9) is poured, and the longitudinal block (5) is provided with round through holes (6); the through groove (7) and the through groove (3) are identical in shape and size, the edge ribs (4) and the edge rib (9) are identical in shape and size, and a combined body, attached to the two back adjacent edge ribs (4), of the transverse block (1) is identical to the through groove (7) of the longitudinal block (5) in size; a plurality of plain round bars (8) are prefabricated; a foundation pit is built; one end of each plain round bar (8) is vertically preburied in the foundation pit; and the plain round bars (8) penetrate from the round through holes (6) and splice the transverse block (1) and the longitudinal block (5), and accordingly the bridge pier can be formed.

Description

1. Technical field [0001] The invention belongs to building structure technology, specifically a pier system composed of a new type of reinforced concrete prefabricated block that can realize horizontal self-locking, and vertically penetrates prestressed steel bars for reinforcement, and is mainly used in bridges with small and medium spans and emergency use pier. 2. Background technology [0002] For bridges with small and medium spans, reinforced concrete and prestressed concrete simply supported bridges are the most widely used bridge types. Reinforced concrete and prestressed concrete simply supported 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 indu...

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Problems solved by technology

However, the blocks must be built with mortar before they can be used as a structure. The construction period is long, and according to the relevant provisions of the current "Code for Design of Masonry Structures" and "Code for Acceptance of Construction Quality of Masonry Structures", in order to avoid the overall Topple, the maximum height that can be built at one time is greatly affected by the thickness of the block, and the horizontal flatness and vertical deviation of the masonry are also strictly required, especially if self-locking is not used between blocks, and mortar is not used. In the case of filling, it is very likely to cause the masonry structure to collapse during the construction stage, or even cause the overall collapse

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