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Annular curvature-related shape memory alloy damping device

A technology of memory alloy and vibration damping device, which is applied to building components, shockproof, etc., can solve the problems of difficult to apply to self-supporting towering structures, and achieve the effects of simple structure, stable performance and reduced structural response.

Active Publication Date: 2015-06-03
SUZHOU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the shape memory alloy damping devices developed in the field of civil engineering are mostly aimed at general civil engineering structures, and are basically displacement-related dampers, which are difficult to apply to self-supporting towering structures

Method used

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  • Annular curvature-related shape memory alloy damping device

Examples

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Embodiment Construction

[0026] The annular curvature-related shape memory alloy damping and vibration reduction device of the present invention includes a stiffening rod 2, an inner / outer soft connection shell 3, an upper / lower cover plate 4, an SMA rod / cable 5, a limit node 6, an adjustment node 7, a fixed Node 8; the limiting node 6 includes a triangular cone bracket 61, a steel ring 62, and a connecting bolt 63; the adjusting node 7 includes a fixed nut 71, an adjusting nut 72, a conversion screw 73, and a conversion node 74; The above-mentioned annular curvature-related shape memory alloy damping device is connected to the self-supporting towering structure 1 through the upper / lower cover plate 4 and the stiffener 2; the SMA rod / cable 5 is connected to the upper / lower cover plate through the adjustment node 7 and the fixed node 8 4 are connected; the limit node 6 limits the contact with the structure 1 when the SMA rod 5 deforms, and the adjustment node 7 adjusts the initial state of the SMA rod / c...

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Abstract

The invention belongs to the technical field of civil engineering structure vibration control devices and relates to an annular curvature-related shape memory alloy damping device. The device comprises a bracing boom, an inner / outer soft connection shell, an upper / lower cover plate, an SMA bar / rope, a limit node, an adjusting node and a fixing node. The damping device is connected with a self-standing high-rise structure through the upper / lower cover plate and the bracing boom. The SMA bar / rope is connected with the upper / lower cover plate through the adjusting node and the fixing node. The limit node limits the contact of the SMA bar / rope and the self-standing high-rise structure when the SMA bar / rope deforms. The adjusting node adjusts the initial state of the SMA bar / rope and uses the super elasticity of the SMA bar / rope to provide energy consumption and self-reset capability. The annular curvature-related shape memory alloy damping device is simple in structure, good in energy consumption performance and durability, and capable of achieving self-reset, and the like.

Description

technical field [0001] The invention belongs to the technical field of vibration control devices for civil engineering structures, and relates to a shape memory alloy damping and vibration reduction device for self-supporting towering structures. Background technique [0002] Self-supporting high-rise structures are widely used in social production and life. With the continuous development of the national economy, wind power towers, self-supporting transmission line towers, high-rise chimneys and other structures are gradually increasing, and they are increasingly developing in the direction of high and soft. Since the cross-section is often circular or nearly circular polygon, the slender structure makes them very prone to vortex induced resonance, so that they are in the working state of reciprocating stress for a long time. Destruction due to fatigue damage may occur, causing great economic losses. Therefore, taking measures to mitigate the impact of wind-induced vibra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98
Inventor 陈鑫李爱群李启才孙国华
Owner SUZHOU UNIV OF SCI & TECH
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