A support type anti-buckling low-relaxation friction anti-seismic damper

Abstract

The invention provides a support type anti-buckling low-relaxation friction type anti-seismic damper, comprising: a damping core plate; an outer clip of the core plate, including the outer clips arranged on both sides of the damping core plate opposite to the outer clamping plate for connecting the external main body structure A friction damping layer is sandwiched between the outer plywood and the middle plywood and the damping core plate; a pair of pull adjustment components includes a pair of pull pieces and an elastic adjustment piece, and the pair of pull pieces is arranged to pass through the pair of pull pieces. On the damping core plate and the outer clamping plate, the elastic adjustment member is supported against the outer clamping plate and the pair of tension members; and an anti-buckling sleeve is sleeved on the outer clamping plate and is supported and connected to the connecting end plate. The invention improves the applicability of the relaxation of the pre-tightening force of the tension member in the damper by arranging the elastic adjustment member between the tension member and the outer clamping plate; and through the anti-buckling restraint sleeve, on the one hand, the damper can be guaranteed under the axial pressure. The stability under the state, and at the same time provide a reliable guarantee for the anti-corrosion performance of the damper.

Description

technical field [0001] The invention relates to the seismic field of building construction, in particular to a support type anti-buckling low-relaxation friction type seismic damper. Background technique [0002] Friction damper is a kind of control device that uses the frictional energy dissipation of the friction surface to dissipate vibration energy. It has simple structure, convenient installation, good energy dissipation, and its performance is not affected by temperature. Damping device. Most of the dampers generate anti-vibration friction damping force by rubbing the damping layer between the damping member and the outer clamp, and then by tying the damping member and the outer clamp. However, the existing friction dampers have the following four problems: [0003] 1. The average compressive stress of the friction damping layer is large or the stress is uneven, and the friction damping layer will produce large friction loss; [0004] 2. Simply using high-strength b...

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Problems solved by technology

[0003] 1. The average compressive stress of the friction damping layer is large or the stress is uneven, and the friction damping layer will produce large friction loss;

[0004] 2. Simply using a high-strength bolt and other high-rigidity loading system, as the friction material is lost during the friction process, the frictional damping force generated by the pressure between the frictional damping layer and the damping part will have a large drop;

[0005] 3. Since the damper is used to support the axial connection (parallel to the friction force), it is constrained by the stability problem (mainly out-of-plane instability) and the internal in-plane rotation problem of the damper caused by the additional bending moment in the plane. The friction damper cannot be used to support the axial connection, and there are certain restrictions on the arrangement and use of the damper

The traditional coating protection has poor durability and high maintenance costs, so it is advisable to carry out closed protection for the above-mentioned loading system

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