Connection structure for prefabricated cover beam and prefabricated pier column and construction method of structure

Abstract

The invention discloses a connection structure for a prefabricated cover beam and a prefabricated pier column. The structure comprises the prefabricated cover beam and the prefabricated pier column, apier column rear pouring groove is formed in the top of the prefabricated pier column, and a cover beam rear pouring groove which is coaxial with the pier column rear pouring groove and is communicated with the pier column rear pouring groove is formed in the prefabricated cover beam; the cover beam rear pouring groove runs into the top surface of a prefabricated beam, and concrete is poured in the pier column rear pouring groove and the cover beam rear pouring groove; multiple vertical prestress bar reinforcements are arranged in the prefabricated pier column, the bottoms of the prestress bar reinforcements are located in the prefabricated pier column, the tops of the prestress bar reinforcements penetrate through the prefabricated cover beam, and the tops of the prestress bar reinforcements are subjected to anchor sealing by adopting seal anchor blocks. A construction method of the connection structure for the prefabricated cover beam and the prefabricated pier column comprises thesteps that the prefabricated pier column is hoisted at first, then the prefabricated cover beam is hoisted, and the concrete is poured in the cover beam rear pouring groove and the pier column rear pouring groove. According to the connection structure for the prefabricated cover beam and the prefabricated pier column and the construction method of the structure, the structure is high in mounting precision, efficiency and connection reliability, the time of occupying hoisting equipment is short, and the structure has small influence on urban landscape.

Description

technical field [0001] The invention relates to the technical field of building bridges, in particular to a connection structure between a prefabricated cover beam and a prefabricated pier column and a construction method thereof. Background technique [0002] Prefabricated pier columns and prefabricated cover beams are common structures in prefabricated bridges. In the prior art, prefabricated pier columns and prefabricated cover beams are generally connected by slot connections or wet joints, but the construction of these two connection structures is difficult. It is necessary to build brackets on the construction site and use formwork. Both the erection of brackets and single independent formwork on site require long-term use of hoisting equipment, which not only requires long construction time, complicated construction steps, and low installation accuracy, but also seriously affects the urban landscape. Contents of the invention [0003] The purpose of the present inve...

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Problems solved by technology

[0002] Prefabricated pier columns and prefabricated cover beams are common structures in prefabricated bridges. In the prior art, prefabricated pier columns and prefabricated cover beams are generally connected by slot connections or wet joints, but the construction of these two connection structures is difficult. It is necessary to build brackets on the construction site and use formwork. Both erecting brackets and independent formwork on site require long-term use of hoisting equipment. Not only the construction time is long, the construction steps are complicated, the installation accuracy is low, and the urban landscape will be seriously affected.

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