Displacement enlarging friction damper and assembly construction process

Abstract

The invention belongs to the technical field of civil engineering and relates to a displacement enlarging friction damper and the assembly construction process. The displacement enlarging friction damper comprises a lower connecting plate, a lower friction piece, a main plate, an upper rear friction piece, an upper front friction piece, a rear steel angle, a front steel angle, lower racks, triple gears, dual connecting rods, upper racks, U-shaped connecting pieces, a high-strength bolt, a limiting bolt, a gear rotary shaft and a positioning pin. The main plate is located between the lower connecting plate and the front steel angle and the rear steel angle which are arranged in a separated mode. The lower friction piece is adhered to the upper surface of the lower connecting plate. The two friction pieces are adhered to the lower surface of the rear steel angle and the lower surface of the front steel angle correspondingly. The triple gears, the upper racks, the lower racks and the dual connecting rods are located between the rear steel angle and the front steel angle. The lower racks are welded to the upper surface of the main plate, and the upper racks are welded to the lower surfaces of the dual connecting rods. The U-shaped connecting pieces are welded to the ends of the dual connecting rods. The sliding friction displacement of the damper is enlarged by the displacement enlarging friction damper through the gear transmission theory, and the energy consumption capacity is high.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and relates to an energy dissipation and shock absorbing device, in particular to a friction damper which provides amplified displacement through gears. Background technique [0002] Energy dissipation and shock absorption technology is to connect dampers in parallel in the lateral force-resistant members of the structure, and the dampers consume most of the seismic energy to ensure the safety of the main structure. It is an active and effective anti-seismic strategy. The displacement of the existing damper during operation is usually equal to the relative displacement of the connection point, so the damper should be installed in a position where the relative deformation of the structure is relatively large. If the relative deformation of the structure is small, the damper cannot effectively perform its energy dissipation function due to the small displacement . For this reason, schola...

AI Technical Summary

Problems solved by technology

The displacement of the existing damper during operation is usually equal to the relative displacement of the connection point, so the damper should be installed in a position where the relative deformation of the structure is relatively large. If the relative deformation of the structure is small, the damper cannot effectively perform its energy dissipation function due to the small displacement

For this reason, scholars have developed a new technology to make the displacement of the damper greater than the relative displacement of the connection point. For example, the patent with the publication number CN 104314192A discloses a damper with a displacement amplification device, that is, the leverage principle is used to increase the displacement of the damper. Displacement, but the transmission efficiency of the lever is low, and only when the size of the damper is large can a large displacement be obtained, which causes inconvenience in installation and construction, and also affects the use function of the building

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