Prefabricated concrete frame beam-column joint construction method

Abstract

The invention discloses a prefabricated concrete frame beam-column joint construction method, and relates to connection of a prefabricated column and a superposed beam. High-strength bolt bars and threaded sleeves are pre-buried in the column side of the prefabricated column, and a column side key groove is pre-formed; a beam end key groove is pre-formed in the beam end of a prefabricated beam, and a connection plate is pre-buried; the construction method adopts the following steps that (1), mounting of the prefabricated column is completed; (2) the prefabricated beam is mounted from top to bottom, so that the high-strength bolt rods penetrate through bolt connection holes; (3), upper longitudinal ribs of the superposed beam are mounted, firstly connection of the upper longitudinal ribs ofthe superposed beam and the threaded sleeves is completed, and then tying of the upper longitudinal ribs of the superposed beam and stirrups of the superposed beam is completed; (4) a washer and a lock nut are connected to each high-strength bolt rod to form pretightening force; and (5), templates are supported on the two sides of the prefabricated beam, concrete is poured, and a post-cast concrete anti-shear key integrated with a post-cast part of the superposed beam is formed in each of the beam end key groove and the column side key groove. The prefabricated concrete frame beam-joint construction method can achieve easy, rapid and convenient on-situ connection of the prefabricated column and the superposed beam, and connection is stable and reliable.

Description

technical field [0001] The invention relates to the field of construction, in particular to a construction method for prefabricated concrete frame beam-column joints. Background technique [0002] At present, domestic housing construction is mainly cast-in-place concrete buildings, but cast-in-place concrete buildings pollute the environment, have low utilization rate of resources, and cause serious waste, which conflicts with the national strategy of protecting the environment and saving resources. In recent years, my country has been vigorously developing prefabricated buildings, and prefabricated buildings are booming. However, compared with cast-in-place buildings, prefabricated buildings have poor integrity and insufficient seismic performance. It is imperative to study reliable and excellent new connection nodes. Row. The current concrete frame beam-column joints mostly use sleeves, slurry anchors, welding, etc., which requires a large amount of on-site work, inconveni...

AI Technical Summary

Problems solved by technology

[0002] At present, domestic housing construction is mainly cast-in-place concrete buildings, but cast-in-place concrete buildings pollute the environment, have low resource utilization rates, and cause serious waste, which conflicts with the national strategy of protecting the environment and saving resources.

In recent years, my country has been vigorously developing prefabricated buildings, and prefabricated buildings are booming. However, compared with cast-in-place buildings, prefabricated buildings have poor integrity and insufficient seismic performance. It is imperative to study reliable and excellent new connection nodes. Row

The current concrete frame beam-column joints mostly use sleeves, grout anchors, welding, etc., which requires a large amount of on-site work, inconvenient construction, and low efficiency

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