Coupling beam damper based on magneto-rheological elastomer material

Abstract

The invention discloses a coupling beam damper based on a magneto-rheological elastomer material. The coupling beam damper comprises first H-shaped steel and second H-shaped steel, and further comprises a shock absorption device for connecting the first H-shaped steel and the second H-shaped steel. The inner end of the first H-shaped steel / second H-shaped steel is connected with the shock absorption device, and the outer end of the first H-shaped steel / second H-shaped steel is connected with a shear wall through joint plates. The shock absorption device comprises a plurality of steel clampingplates, excitation coils and magneto-rheological elastomer blocks. The plate surfaces of the steel clamping plates are vertical, and the steel clamping plates are transversely distributed at intervals. The excitation coils are longitudinally wound on the steel clamping plates at intervals and connected with an outer power supply through wires. The magneto-rheological elastomer blocks are arrangedin gaps between every two adjacent steel clamping plates at intervals. The coupling beam damper has the beneficial effects that the magneto-rheological elastomer material is adopted, the excitation coils are wound outside the steel clamping plates, the mechanical property of the magneto-rheological elastomer blocks can be changed by changing magnetic fields which are changed by changing excitationcurrents, and therefore the coupling beam damper can achieve semi-active control to achieve the better shock absorption effect.

Description

technical field

[0001] The invention relates to the field of shock absorption control of building structures, in particular to a coupling beam damper based on a magnetorheological elastomer material.

[0002] technical background

[0003] The frame-shear wall structure is widely used in high-rise building structures, and it has the advantages of flexible spatial arrangement and reasonable stress. In the frame shear wall structure, the shear wall can bear the load transmitted by the horizontal member, and at the same time, because of its large lateral stiffness, it can also resist horizontal earthquake and wind vibration.

[0004] In order to meet the functional requirements of the building, in general projects, vertically arranged door openings are often opened on the shear wall, so that the shear wall is divided into multiple wall piers, and the connecting beams between the openings are shear wall piers. The power transmission member between. Under earthquake action, the c...

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