An S-type mild steel energy dissipation damper for steel-concrete composite shear wall

Abstract

The invention discloses an S-shaped soft steel energy dissipation shock absorber used for a shape steel concrete composite shear wall. The S-shaped soft steel energy dissipation shock absorber comprises a first I-beam, a first connecting plate, soft steel rods, a second connecting plate and a second I-beam. The upper surface of the first connecting plate is connected with a flange at the lower portion of the first I-beam; the lower surface of the second connecting plate is connected with a flange of the upper portion of the second I-beam; the upper portions of the soft steel rods are connected with the lower surface of the first connecting plate in a clamped mode; and the lower portions of the soft steel rods are connected with the upper surface of the second connecting plate in a clamped mode. The shock absorber can effectively protect the shear wall against earthquake damage.

Description

technical field [0001] The invention belongs to the field of anti-seismic technology of steel and concrete combined structures, and relates to an S-shaped soft steel energy dissipation damper used for steel-concrete combined shear walls. Background technique [0002] At present, the shear wall structure in the actual project is under the action of the earthquake, and the bottom area of ​​the shear wall is seriously damaged. Although the shear wall structure will not collapse as a whole, it is difficult to carry out post-earthquake repair work, which affects people's normal production and life. . [0003] The failure mode of the shear wall under the combined action of earthquakes is mainly bending failure and shear failure. Ordinary reinforced concrete shear walls are prone to shear failure, the concrete at the foot of the wall falls off, and the horizontal shear cracks at the bottom of the wall may penetrate. It is irreparable and cannot be used continuously, and can only b...

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Problems solved by technology

[0002] At present, the shear wall structure in the actual project is under the action of the earthquake, and the bottom area of ​​the shear wall is seriously damaged. Although the shear wall structure will not collapse as a whole, it is difficult to carry out post-earthquake repair work, which affects people's normal production and life.

[0003] The failure mode of the shear wall under the combined action of earthquakes is mainly bending failure and shear failure. Ordinary reinforced concrete shear walls are prone to shear failure, the concrete at the foot of the wall falls off, and the horizontal shear cracks at the bottom of the wall may penetrate. It is irreparable and cannot be used continuously, and can only be discarded. At the same time, when the shear wall is bent and damaged, it is mainly concentrated on the sides and roots of the wall, that is, the damage to the wall toe is the most serious. Therefore, it is urgent to develop an effective protection against shear walls. Dampers damaged by earthquakes

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