Reinforced structure connected by steel angles and method for all-fabricated external attached frame

Abstract

The invention discloses a reinforced structure connected by steel angles and method for an all-fabricated external attached frame. The structure comprises a to-be-reinforced original frame structure and an external attached frame structure, the external attached frame structure comprises prefabricated beams and prefabricated columns, notches are formed in the ends of the prefabricated beams, and hidden brackets extend out of the two sides of joint core areas of the prefabricated columns; the ends, the hidden brackets and the joint core areas of the prefabricated beams are all partially weakened, and steel plates are embedded in the weakened areas; the ends of the prefabricated columns are weakened partially, and steel sleeves are embedded in the ends of the prefabricated columns; and three-side steel angles are arranged at the corners of connected joints of the prefabricated beams and the prefabricated columns, the prefabricated beams and the prefabricated columns are connected with the beams and the columns of the original frame structure through the steel angles, and the prefabricated columns at the lower ends are connected with the prefabricated columns at the upper ends through the steel sleeves and pull bolts. The external attached frame structure not only contributes to the anti-seismic capacity of the whole reinforced structure through the anti-seismic bearing capacity and the energy consumption capacity, but also can improve the stress state and deformation mode of the original structure, so that the structure forms a damage yield mechanism, and the anti-seismic capacity of the original structure is fully utilized.

Description

technical field [0001] The invention relates to the field of anti-seismic reinforcement of civil engineering, in particular to a fully assembled external frame reinforcement structure and method connected by angle steel. Background technique [0002] The reinforcement of the additional overall substructure is to use the cooperative work of the additional overall substructure and the original structure to enhance the overall seismic capacity of the original structure, or change the structural system of the original structure, thereby improving the stress state and deformation mode of the original structure, thereby improving the structure. The overall seismic performance is a reinforcement method for structural systems. Most of the current strengthening methods are limited to strengthening the original structure on the components. Invisibly misleading the practice of seismic strengthening of structures, making engineers more inclined to strengthen the components with insuffi...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the existing external aconite structures need to be cast-in-place, which will generate pollution and noise, and the construction period is complicated and long, which has lost its original advantages to a certain extent.

Some of the existing methods of assembly and integral external reinforcement also have a certain post-casting section, and the beam-column joints and column-column joints need to be wet-connected, which cannot truly be fully assembled.

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