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Staging yield type soft steel damper

A mild steel damper, a staged technology, applied in building components, anti-vibration and other directions, can solve the problems of damper not playing its due role, seismic energy dissipation, single structure shape, etc., to achieve little impact on building function and appearance , The effect of small space occupation and clear force

Active Publication Date: 2011-04-13
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the known metal energy-dissipating dampers have a single structural shape, and when the seismic force is small and the yield stress of the damper is not reached, the damper is still in an elastic state despite displacement, and the seismic energy is dissipated by the main structure, causing structural damage. Damage, the damper does not play its due role
Under a large earthquake, when the stress is slightly greater than the yield stress, it will enter the plastic energy consumption state as a whole. After the earthquake damage, it must be replaced completely, and the economy is poor.
Earthquakes are generally accompanied by a sequence of mainshocks, aftershocks, or swarms, and aftershocks mostly occur shortly after the mainshock, and the magnitude of aftershocks is often large and lasts for a long time. Therefore, it is imperative to develop a new staged energy-dissipating damper

Method used

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  • Staging yield type soft steel damper
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  • Staging yield type soft steel damper

Examples

Experimental program
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Effect test

Embodiment 1

[0025] When the present invention adopts the middle column type to be installed in the building structure, such as image 3 As shown, several stage yield type mild steel dampers are assembled together and installed in the load-bearing structure of the building structure. The upper part of the rectangular connecting plate 1 of the staged yield type mild steel damper is connected with the upper beam of the building structure through high-strength bolts, and the lower part of the folded connecting plate 2 of the staged yielding type mild steel damper is connected with the load bearing of the building structure through high-strength bolts The platforms are fixedly connected. When an earthquake occurs, the rectangular connected steel plate 1 and the folded surface connected steel plate 2 produce relative displacements. When the displacement is small, the short mild steel energy-dissipating steel sheet 3 in the mild-steel energy-dissipating steel sheet 3 first reaches the yield str...

Embodiment 2

[0027] When the present invention adopts supporting type to be installed in the building structure, such as Figure 4 As shown, several stage yield type mild steel dampers are assembled together and installed in the load-bearing structure of the building structure. The upper part of the rectangular connecting plate 1 of the staged yield type mild steel damper is connected with the upper beam of the building structure through high-strength bolts, and the lower part of the folded connecting plate 2 of the staged yielding type mild steel damper is supported by the building structure through high-strength bolts The frame is fixedly connected, and the support frame acts as a fixed damper. When an earthquake occurs, the rectangular connected steel plate 1 and the folded surface connected steel plate 2 produce relative displacements. When the displacement is small, the short mild steel energy-dissipating steel sheet 3 in the mild-steel energy-dissipating steel sheet 3 first reaches ...

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Abstract

The invention discloses a staging yield type soft steel damper. The staging yield type soft steel damper consists of a rectangular connecting steel plate (1), a folded face connecting steel plate (2), a soft steel energy-dissipating steel sheet (3) and a hoop part (4), wherein the rectangular connecting steel plate (1) and the folded face connecting steel plate (2) are arranged opposite to each other and are parallel to each other; the two ends of the soft steel energy-dissipating steel sheet (3) are vertically embedded into the hollow part of the hollow rectangular connecting steel plate (1) and the hollow part of the hollow folded face connecting steel plate (2) respectively; and parts, extending out of the rectangular connecting steel plate (1) and the folded face connecting steel plate (2), of the two ends of the soft steel energy-dissipating steel sheet (3) are connected with the hoop part (4). Due to the design of the folded face connecting steel plate and long and short soft steel energy-dissipating steel sheet, the staging yield type soft steel damper fulfills the aims of dissipating energy and damping by stages, has the characteristics of simple construction, high durability, easiness in arrangement and replacement and small influence on functions and appearance of a building, and is applicable to new construction or renovation construction projects of multi-layer, high-rise concrete or steel structures as an energy-dissipating and damping member for solving the safety problem of building structures under the action of earthquake.

Description

technical field [0001] The invention belongs to the field of anti-seismic and shock-absorbing civil engineering, and in particular relates to a metal energy-dissipating damper in a structural shock-absorbing control system, specifically a staged yield type mild steel damper that can increase structural damping and reduce structural response in earthquakes device. Background technique [0002] Metal energy dissipation dampers use different forms of plastic hysteretic deformation of metals to dissipate energy. Because metal has good hysteresis characteristics after entering the plastic state, and absorbs a large amount of energy during the elastic-plastic hysteretic deformation process, it is used to manufacture energy-dissipating shock absorbers of different types and structures. From the force form, it can be divided into axial yield type, shear yield type, bending yield type and torsional yield type damper. Representative products that have been formed: X-shaped and trian...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98
Inventor 王曙光刘伟庆杜东升姜昕
Owner NANJING UNIV OF TECH
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