Reinforcing structure of square steel column

Abstract

The invention discloses a reinforcing structure of a square steel column. The reinforcing structure comprises transversely-arranged beam column connecting parts (1) and a vertically-arranged square steel column (2); the square steel column (2) abuts against the beam column connecting parts (1) by column ends (2.1) to bear the weight of the whole beam column; the column ends (2.1) are provided withholes (2.2) used for reducing bending and shear bearing capacity of the column ends (2.1); the reinforcing structure further comprises reinforcing plates (3) used for covering the holes (2.2); the reinforcing plates (3) are connected with the column ends (2.1) by bolts (4); and the reinforcing plates (3) comprise bodies (3.1) tightly attached to the square steel column (2) and a plurality of ribs(3.2) arranged at the bodies (3.1) in a protruding mode and arranged in the transverse direction. The invention provides the square steel column reinforcing structure which requires no overall reinforcing of the square steel column, and achieves improvement of overall wind resistance and anti-seismic ability of the steel structure only by local reinforcement of the column ends to obtain the idealanti-buckling effect.

Description

technical field [0001] The invention relates to the technical field of building steel structures, in particular to a reinforced structure of square steel columns. Background technique [0002] The columns of the general steel frame structure mostly use square steel columns to support the transverse beams and columns. The overall stability of square steel pipes is relatively strong, but the local stability is relatively weak, especially at the end of the column that offsets the square steel columns. When the horizontal force brought by strong wind or earthquake force acts on the steel frame, the end of the square steel column that is offset against the beam-column connection will generate huge bending moment and shear force, and the end of the square steel column with weak local stability Local buckling damage is prone to occur at the upper part, leading to the collapse of the structure. However, the buckling-resistant reinforcement of the column ends in the general method ca...

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Problems solved by technology

[0002] The columns of the general steel frame structure mostly use square steel columns to support the transverse beams and columns. The overall stability of square steel pipes is relatively strong, but the local stability is relatively weak, especially at the end of the column that offsets the square steel columns. When the horizontal force brought by strong wind or earthquake force acts on the steel frame, the end of the square steel column that is offset against the beam-column connection will generate huge bending moment and shear force, and the end of the square steel column with weak local stability Local buckling damage is prone to occur at the upper part, leading to the collapse of the structure. However, the buckling-resistant reinforcement of the column ends in the general method can increase the bending and shear bearing capacity of the column ends in the reinforced area and is not easy to be damaged, but it is close to the square steel. Buckling damage will still occur in the area of ​​the column with a large bending moment in the reinforcement area, that is, the buckling damage area moves inward, so the general local anti-buckling reinforcement method does not achieve good results, and it is necessary to repair the entire column or basically the entire column. Only by strengthening the column can the buckling failure zone be completely eliminated to obtain the ideal anti-buckling effect, but the disadvantage of this method is that it is not economical and the weight of the structure is greatly increased

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