Prefabricated column of assembly type concrete building structure and beam and column joint with same

Abstract

The invention discloses a prefabricated column of an assembly type concrete building structure and a beam and column joint with the prefabricated column. The prefabricated column and the beam and column joint are applicable to the connection between an upper-layer prefabricated column and a lower-layer prefabricated column and a beam in the assembly type concrete structure. The prefabricated column is a prefabricated concrete pipe pile. The prefabricated concrete pipe pile comprises a vertically arranged pipe pile prestressed reinforcing steel bar, a pipe pile spiral stirrup for bundling the pipe pile prestressed reinforcing steel bar and core filling concrete, and is further internally and vertically provided with a connecting steel bar. The connecting steel bar is provided with an extending end extending out of the prefabricated concrete pipe pile, and the extending end is used for connecting with a structural beam of a beam and column joint area; and the prefabricated column is usedfor being connected with the structural beam in an assembly mode. The prefabricated column is low in manufacturing cost and construction mounting fault tolerance rate and simple in mounting process.Meanwhile, the beam and column joint comprising the prefabricated column is provided.

Description

technical field [0001] The invention relates to a prefabricated concrete building structure, in particular to a prefabricated column and beam-column joints of the prefabricated concrete building structure. Background technique [0002] Article 3.0.3 of the "Prefabricated Evaluation Standard" (GB / T51129-2017) points out that the prefabricated building should meet the evaluation score of the main structure part not less than 20 points, and in the prefabricated building scoring table, the main structure full score 50 points, of which, the proportion of vertical components such as columns, supports, load-bearing walls, and ductile wall panels reaches 35% to 80%, and the score value is 20 to 30 points. If the ratio reaches 70% to 80%, the score is 10 to 20 points. If the vertical components are not prefabricated, the proportion of beams, slabs, stairs, balconies, air-conditioning panels and other components must reach 80%, which will bring great difficulties to the disassembly o...

AI Technical Summary

Problems solved by technology

However, this kind of ordinary reinforced concrete prefabricated column is very expensive, usually ranging from 3,000 to 4,000 yuan per cubic meter, and due to its large volume, it requires a higher performance of the crane.

In addition, ordinary reinforced concrete prefabricated columns adopt the sleeve grouting connection method, which puts forward high requirements for the manufacturing and installation accuracy of precast columns. The fault tolerance rate of ordinary reinforced concrete prefabricated columns is low. If it cannot be used, the prefabricated component factory needs to make it again, which will undoubtedly have a lot of impact on the construction progress and increase the construction cost

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