A frame beam-column joint reinforcement structure and its construction method

Abstract

The invention discloses a frame beam-column joint reinforcement structure and a construction method thereof, wherein a frame beam-column joint reinforcement structure includes an original frame column, a frame beam, a steel sleeve and a reinforcement cage, and the reinforcement cage includes inserting bars, The ring reinforcement of the inner ring beam and the ring reinforcement of the outer ring beam, the frame beam is connected to the original frame column, the ring reinforcement of the inner ring beam and the ring reinforcement of the outer ring beam respectively pass through the frame beam and surround the outside of the original frame beam-column joint, The ring reinforcement of the ring beam of the outer ring is located outside the ring reinforcement of the ring beam of the inner ring, and the inserting reinforcement is arranged vertically and connected with the ring reinforcement of the ring beam of the inner ring. The layers of reinforced concrete between the frame columns and to bury the reinforcement cage. The reinforcement method of the present invention utilizes the constraint effect of the inner ring beam ring reinforcement and the outer ring beam ring reinforcement on the core area of ​​the frame beam-column joint, which greatly improves the shear bearing capacity and stiffness of the frame beam-column joint, thereby improving The seismic performance of the frame beam-column joints.

Description

technical field [0001] The invention relates to a building node reinforcement structure and a construction method thereof, in particular to a frame beam-column node reinforcement structure and a construction method thereof. Background technique [0002] Due to the aging of building materials or changes in building functions, the building structure needs to be reinforced. Frame beam-column joints, as the key components for transmitting beam end loads and upper column loads, are the key points in reinforcement engineering. Since the joint is located at the junction of the beam and the column, the construction surface is narrow, so it is also a difficult point in the reinforcement project. The existing node reinforcement methods mainly include: [0003] 1. The method of enlarging the section, which is characterized by increasing the area of ​​the core area of ​​the joint, generally cooperates with the frame column outsourcing reinforced concrete reinforcement method. The sect...

AI Technical Summary

Problems solved by technology

When using the method of enlarging the cross-section for reinforcement, the reinforcement stirrups required to be configured are relatively dense, which is likely to cause construction difficulties; while using the outsourcing method for reinforcement, the reinforcement effect depends to a large extent on the operation level and pasting process. When the method is used, the corrosion of the steel plate is also a difficult point, and the stiffness of the joints is difficult to meet the design requirements

Images