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Metamaterial concrete component and production method thereof

A concrete and metamaterial technology, applied in the direction of manufacturing tools, ceramic molding machines, etc., can solve problems such as casualties, restrictions, instrument and equipment damage, etc., to suppress plate vibration, achieve vibration suppression, and improve the effect of bearing capacity

Pending Publication Date: 2021-12-28
ARMY ENG UNIV OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structural vibration caused by ground impact will not only cause casualties to personnel inside the project, but also cause damage to instruments and equipment in the project to varying degrees.
At present, in concrete engineering, wire rope isolators and rubber isolators are mainly used as energy-dissipating components for shock absorption design. This type of shock isolation method cannot be designed specifically for the specific loads that the project may face. The comparison of shock isolation efficiency restricted
[0003] Different from traditional seismic isolation methods, the application of some metamaterials can achieve seismic isolation in a relatively wide frequency band, but the structural design and preparation process of these metamaterials currently limit their application in large sizes, and the preparation process is complicated and difficult Applied to practical concrete engineering

Method used

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  • Metamaterial concrete component and production method thereof
  • Metamaterial concrete component and production method thereof
  • Metamaterial concrete component and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Such as figure 1As shown, this embodiment provides a supermaterial concrete member, including: a reinforced concrete matrix 1 and a clipping region body 2 wrapped in the reinforced concrete matrix 1; the clipping region body 2 is based on the component body center The center point and the local cubic area where the clipping oscillator 3 is arranged inside.

[0054] Implementation principle: The metamaterial concrete component provided in this embodiment includes a clipping area body 2; the clipping area body 2 is a local cubic area with the body center of the component as the center point and the clipping vibrator 3 arranged inside. , The clipping vibrator 3 absorbs the energy in the mortar matrix to achieve the effect of suppressing the vibration of the plate body. This structure can generate a vibration isolation band gap to achieve vibration suppression. The metamaterial concrete member in this embodiment is generally used as a plate member, and the plate member is ...

Embodiment 2

[0056] as attached figure 2 As shown, this embodiment provides a supermaterial concrete component, including: a reinforced concrete matrix 1 and a clipping region body 2 . The reinforced concrete matrix 1 wraps the clipping area body 2 inside.

[0057] The clipping area body 2 is a local cubic area with the body center of the plate member as the center point and the clipping oscillator 3 arranged inside. The distance from the clipping area body 2 to the edge of the component is the sum of the thickness of the steel bar cover, the diameter of the stressed steel bar 4 and the diameter of the distributed steel bar 5 . The clipping vibrator 3 in the clipping area body 2 is distributed periodically along three directions of component length, width and height. The size requirements of the clipping area body 2 can avoid the problem of cracking of the component due to the thin protective layer, and at the same time avoid the adverse impact on the load bearing at the support due to ...

Embodiment 3

[0069] This embodiment provides a metamaterial concrete component, which differs from Embodiment 2 in that the clipping oscillators 3 in the clipping area body 2 are distributed randomly, and the clipping oscillators 3 are single oscillators wrapped in metal shells.

[0070] Such as Figure 4 As shown, the single vibrator wrapped by a metal shell is a spherical vibrator, including the first layer of metal shell 8, the second layer of soft material wrapping layer 9 and the third layer of metal balls 10 that are bonded in pairs from the outside to the inside; The diameter of the single vibrator is not greater than the minimum size of the clipping region body 2, the thickness of the first layer of metal shell 8 is 1 / 6 to 1 / 9 of the radius of the third layer of metal ball 10, and the thickness of the second layer of soft The thickness of the material wrapping layer 9 is 1 / 8-2 / 5 of the radius of the metal ball 10 of the third layer. Preferably, the diameter of the single vibrator ...

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Abstract

The invention discloses a metamaterial concrete component and a production method thereof, and relates to the field of concrete engineering. By means of the produced plate component, the problems of difficult installation of shock insulation facilities and limited shock insulation efficiency during current engineering can be solved. According to the metamaterial concrete component and the production method thereof, a reinforced concrete base body and a clipping area body are produced in a layered pouring mode, the clipping area body is wrapped in the reinforced concrete base body, and clipping vibrators are arranged in the clipping area body in a random distribution mode or in a periodical distribution mode in the length direction, the width direction and the height direction of the component; and each clipping vibrator is a corresponding single vibrator, a corresponding double vibrator or a corresponding single vibrator wrapped by a corresponding metal shell, and the structural form of each clipping vibrator is a spherical clipping vibrator formed by bonding two to four layers of materials selected from soft material wrapping layers, the metal shells and metal balls. According to the metamaterial concrete component and the production method thereof, parameters and the sizes of the clipping vibrators are matched, and the clipping vibrator grading of the clipping area body is optimized so that targeted shock insulation design can be conducted on loads in very wide frequency bands.

Description

technical field [0001] The invention relates to a supermaterial concrete component and a preparation method thereof, belonging to the technical field of concrete engineering. Background technique [0002] Events such as earthquakes and terrorist attacks make concrete projects face blast loads and ground impacts. The structural vibration caused by ground impact will not only cause casualties to personnel inside the project, but also cause damage to instruments and equipment in the project to varying degrees. At present, in concrete engineering, wire rope isolators and rubber isolators are mainly used as energy-dissipating components for shock absorption design. This type of shock isolation method cannot be designed specifically for the specific loads that the project may face. The comparison of shock isolation efficiency restricted. [0003] Different from traditional seismic isolation methods, the application of some metamaterials can achieve seismic isolation in a relativ...

Claims

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Application Information

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IPC IPC(8): B28B23/04B28B1/04B28B1/29B28B11/08B28B23/00C04B28/04
CPCB28B23/04B28B1/045B28B1/29B28B11/0818B28B23/00C04B28/04C04B14/06Y02W30/91
Inventor 刘洋周健南孔新立陈海龙范华林
Owner ARMY ENG UNIV OF PLA