A reinforcement structure of reinforced concrete beam-column joints pasted with carbon fiber sheets

Abstract

The invention discloses a reinforcing structure for reinforced concrete beam column joints adhered with carbon fiber sheets. The reinforcing structure comprises holes, at least one layer of double-L-shaped carbon fiber sheets, at least one layer of U-shaped carbon fiber sheet hoops, fixing pieces and steel plate pressing strip, wherein the holes transversely penetrate through a reinforced concrete beam; the double-L-shaped carbon fiber sheets wrap the reinforced concrete beam column joints, extend out of the long side directions of the reinforced concrete beams and are adhered to the surfaces of the reinforced concrete beams; the U-shaped carbon fiber sheet hoops wrap the reinforced concrete beams and are adhered to the surfaces of the reinforced concrete beams; each steel plate presses the corresponding pair of double-L-shaped carbon fiber sheets extending out of the corresponding beam on the corresponding beam; ends of the U-shaped carbon fiber sheet hoops are pressed on the reinforced concrete beams; and the fixing pieces penetrate through the double-L-shaped carbon fiber sheets, the U-shaped carbon fiber sheet hoops, mounting holes of steel plate pressing strips and the holes of the reinforced concrete beams and are fixed. The reinforcing structure is simple in structure, low in cost and convenient to construct; the shear capacity and the compression bearing capacity of the beam column joints can be improved; the ductility of the beam column joints is improved; and therefore, the anti-seismic property of the beam column joints is improved.

Description

technical field [0001] The invention relates to a reinforced concrete beam-column joint pasted carbon fiber cloth reinforcement structure capable of improving the ductility of the reinforced concrete beam-column joint. Background technique [0002] As a commonly used structural component, reinforced concrete beams and columns have been widely used in various aspects of building structures. However, due to the long service life of the building structure, improper maintenance, and changes in use functions, it is easy to cause the bearing capacity of some reinforced concrete beam-column joints to no longer meet the requirements of use and earthquake resistance. For this, it is necessary to strengthen the reinforced concrete beam-column joints. . [0003] Although the existing reinforcement methods of reinforced concrete beam-column joints can improve the shear and compressive bearing capacity of beam-column joints, it is difficult to improve the ductility and integrity of beam...

AI Technical Summary

Problems solved by technology

However, due to the long service life of the building structure, improper maintenance, and changes in use functions, it is easy to cause the bearing capacity of some reinforced concrete beam-column joints to no longer meet the requirements of use and earthquake resistance. For this, it is necessary to strengthen the reinforced concrete beam-column joints.

[0003] Although the existing reinforcement methods of reinforced concrete beam-column joints can improve the shear and compressive bearing capacity of beam-column joints, it is difficult to improve the ductility and integrity of beam-column joints, thereby improving the seismic performance of beam-column joints.

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