Negative poisson's ratio frame structure, resonator and method of mounting, surface wave barrier device

Abstract

The present application relates to the technical field of civil engineering environment isolation, in particular to a negative Poisson's ratio frame structure, a resonator and a mounting method thereof, and a surface wave barrier device, comprising a stable negative Poisson's ratio frame structure formed by a first structure, a second structure, a third structure and a fourth structure fixedly connected in sequence to form a loop, wherein the negative Poisson's ratio frame loop structure is not only stable but also elastic by adopting the frame layer structure connected by mortise and tenon, so that it can not only bear a large load but also allow a certain deformation to offset a certain amount of seismic energy, thereby improving the overall performance of the negative Poisson's ratio frame structure and the overall performance of the resonator. The present application can isolate the main frequency part of the seismic wave, attenuate most of the energy of the seismic wave, or directly guide the surface wave to convert into body wave, so as to effectively protect the building when the earthquake occurs and will not affect the overall integrity of the building itself, and the construction and maintenance cost is relatively low.

Description

Technical Field

[0001] This invention relates to the field of environmental seismic isolation technology in civil engineering, and in particular to a negative Poisson's ratio frame structure, a resonator and its installation method, and a surface wave barrier device. Background Technology

[0002] my country's earthquake activity is characterized by shallow focal depths, wide distribution, high frequency, and high intensity, making it a country severely affected by earthquakes. Common earthquake-resistant measures for buildings include: vibration reduction and energy dissipation, structural seismic resistance, seismic isolation, and combinations of these methods.

[0003] Existing seismic energy dissipation methods direct the energy input from an earthquake to a special device for dissipation, thus protecting the safety of the main structure. However, energy dissipation elements are often integrated with the main structure, frequently causing elastoplastic deformation. Seismic reduction methods can be categorized into three types based on the means employed: active, semi-active, and hybrid control. The first two methods have some problems; for example, semi-active control has significant limitations, while active control suffers from poor stability and numerous influencing factors, resulting in poor broadband seismic reduction effects. Therefore, seismic reduction methods that combine the advantages of different control methods while avoiding their disadvantages are widely researched and applied. Seismic waves include P-waves, S-waves, Lamb waves, and Rayleigh waves. P-waves and S-waves are body waves, propagating in the same direction as the vibration, and are the most harmful to existing underground structures. Rayleigh waves and Lamb waves are surface waves, with vibration directions perpendicular to their elliptical propagation patterns, and are the two most harmful to existing surface structures. Previous seismic isolation barriers considered isolating high-frequency surface waves but neglected low-frequency surface waves, leading to poor isolation effects. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a negative Poisson's ratio frame structure, a resonator and its installation method, and a surface wave barrier device.

[0005] According to a first aspect of the present invention, the negative Poisson's ratio frame structure comprises a first structure, a second structure, a third structure, and a fourth structure sequentially fixedly connected to form a loop to constitute a stable structure.

[0006] The first structure includes:

[0007] Several C-shaped rubber blocks, mortise and tenon rubber blocks and carbon steel flanges. The four sides of the mortise and tenon rubber blocks near the ends have reserved hollow positions. The hollow positions are connected to the C-shaped rubber blocks in sequence with mortise and tenon joints around the mortise and tenon rubber blocks. The ends of the mortise and tenon rubber blocks away from the hollow positions are fixedly connected to the carbon steel flanges.

[0008] The second, third, and fourth structures are identical to the first structure. The first, second, third, and fourth structures are connected by C-shaped rubber blocks between adjacent structures through rubber fixing blocks, forming a negative Poisson's ratio frame structure.

[0009] The negative Poisson's ratio frame structure according to an embodiment of the present invention, by using mortise and tenon joints to connect the frame layers sequentially to form a negative Poisson's ratio frame loop structure, makes it not only stable but also elastic. While ensuring that it can withstand a large load, it can also allow a certain amount of deformation to offset a certain amount of seismic energy, thereby improving the overall performance of the negative Poisson's ratio frame structure and having a better effect when applied to seismic isolation and damping.

[0010] According to some embodiments of the present invention, the C-shaped rubber block includes a first C-shaped rubber block A, a first C-shaped rubber block B, a first C-shaped rubber block C, and a first C-shaped rubber block D. The first C-shaped rubber blocks A, B, C, and D are sequentially connected to the hollowed-out position by tenon and mortise joints. The vertical part of the first C-shaped rubber block C and the vertical part of the first C-shaped rubber block D are both provided with grooves for connecting two adjacent structures with rubber fixing connecting blocks.

[0011] According to some embodiments of the present invention, the first C-shaped rubber block C and the first C-shaped rubber block D are arranged adjacent to each other, which facilitates the fixed connection of the C-shaped rubber blocks between adjacent structures by rubber fixing connecting blocks, so that the first structure, the second structure, the third structure and the fourth structure are fixedly connected in sequence to form a loop to form a stable negative Poisson's ratio frame structure.

[0012] According to some embodiments of the present invention, the number of mortise and tenon rubber blocks in the first structure is two, and they are symmetrically arranged about the C-shaped rubber block. The cross-sectional shape of the mortise and tenon rubber blocks is a right quadrangular prism with a square base, and each of the four sides is provided with a hollow position so that the two ends of the C-shaped rubber block can be embedded and stabilized.

[0013] According to a second aspect of the present invention, a resonator includes a resonator inclusion and a concrete enclosure, wherein the resonator inclusion comprises:

[0014] Negative Poisson's ratio frame structure;

[0015] A spherical steel column has several symmetrically distributed mounting planes on its surface, passing through the plane containing the center of the sphere.

[0016] The first circular NPR board is fixedly installed on the mounting plane, and a negative Poisson's ratio frame structure is fixedly installed on the side of the first circular NPR board away from the mounting plane.

[0017] The second circular NPR plate is fixedly installed on a negative Poisson's ratio frame structure away from the first circular NPR plate, forming a resonator inclusion.

[0018] The concrete encapsulation box consists of a main body with openings on both sides, a first concrete cover, and a second concrete cover. The resonator is contained within the concrete encapsulation box to form the resonator.

[0019] According to the resonator of the present invention, the overall structure designed by the present invention can effectively open a low-frequency ultra-wide bandgap when seismic waves interact. When seismic waves within this bandgap frequency range act on a novel metamaterial surface wave isolation barrier composed of NPR cross-shaped spherical steel columns, the isolation barrier converts the low-frequency surface waves within this frequency range into body waves propagating to the ground, thereby achieving the purpose of attenuating low-frequency seismic waves and further protecting existing buildings on the ground surface.

[0020] According to some embodiments of the present invention, the spherical steel column is made of high-quality carbon steel and consists of three steel columns and a steel sphere. The three steel columns are the same size and material, and the steel columns and the steel sphere are made of the same material. One steel column is set in the vertical direction, and the other two steel columns are set in the horizontal direction and the front-back direction, respectively. The three steel columns pass through the inside of the steel sphere and intersect at the midpoint. The diameter of the steel column is equal to the diameter of the circumcircle of the negative Poisson's ratio frame structure. This allows it to effectively receive the energy transmitted by seismic waves without causing large deformation and thus preventing the overall structure from becoming unstable.

[0021] According to some embodiments of the present invention, the main body of the concrete enclosure box is a hollow cuboid structure, the outer side of the main body of the concrete enclosure box is rectangular, and the size of the opening of the main body of the concrete enclosure box is equal to the size of the first concrete cover and the second concrete cover, so as to facilitate the uniform reception of seismic wave energy.

[0022] According to some embodiments of the present invention, the negative Poisson's ratio frame structure is fixedly connected to the first circular NPR plate by carbon steel flanges and bolts;

[0023] The negative Poisson's ratio frame structure is fixedly connected to the second circular NPR plate via carbon steel flanges and bolts.

[0024] According to a third aspect of the present invention, a resonator mounting method includes the following:

[0025] The pre-installed concrete encapsulation box includes placing a second concrete cover on the mounting base, and then placing the main body of the concrete encapsulation box on the second concrete cover;

[0026] The resonator inclusions are assembled by sequentially connecting the first circular NPR plate, the negative Poisson's ratio frame structure, and the second circular NPR plate onto the mounting plane of the spherical steel column, completing the single-position assembly. This process is repeated to assemble the remaining three mounting planes of the spherical steel column, thus obtaining the resonator inclusions.

[0027] The resonator is assembled by placing the resonator contents into the second concrete cover, and then placing the first concrete cover onto the concrete encapsulation box body to obtain the resonator.

[0028] According to a fourth aspect of the present invention, a surface wave barrier device includes a plurality of resonators as described above periodically arranged around the surface of a building to form a surface wave barrier for the building, which can isolate surface waves that are harmful to existing surface buildings and generate low-frequency bandgap characteristics.

[0029] According to an embodiment of the present invention, a surface wave barrier device is formed by periodically arranging the seismic isolation resonators of the present invention around existing surface buildings (structures) to create a novel metamaterial surface wave isolation barrier composed of NPR cross-shaped spherical steel columns. When interacting with seismic waves, the present invention opens a low-frequency ultra-wide bandgap. When seismic waves within this bandgap frequency range act on the surface wave isolation barrier of the resonator of the present invention, the isolation barrier converts the low-frequency surface waves within this frequency range into body waves propagating to the ground, thereby achieving the purpose of attenuating low-frequency seismic waves and thus protecting existing surface buildings (structures).

[0030] When seismic waves radiate onto the surface wave isolation barrier of this invention, the surface waves that are harmful to existing surface buildings within this band gap range will be isolated due to the band gap generated by the resonance effect of the novel metamaterial structure that simultaneously isolates surface waves, thereby achieving the vibration isolation effect of low-frequency seismic waves.

[0031] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of a negative Poisson's ratio frame structure according to an embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of the first C-shaped rubber block A structure of the negative Poisson's ratio frame structure according to an embodiment of the present invention;

[0035] Figure 3 This is a schematic diagram of the first C-shaped rubber block C structure of the negative Poisson's ratio frame structure according to an embodiment of the present invention;

[0036] Figure 4 This is a schematic diagram of the mortise and tenon rubber block structure of the negative Poisson's ratio frame structure according to an embodiment of the present invention;

[0037] Figure 5 This is a schematic diagram of the resonator inclusion structure according to an embodiment of the present invention;

[0038] Figure 6 This is a schematic diagram of the concrete enclosure structure of the resonator according to an embodiment of the present invention;

[0039] Figure 7 This is a dispersion curve diagram of a surface wave isolation resonator according to an embodiment of the present invention;

[0040] Figure label:

[0041] 1. Negative Poisson's ratio frame structure; 2. Spherical steel column; 3. First circular NPR plate; 4. Second circular NPR plate; 5. Concrete encapsulation box body; 6. First concrete cover; 7. Second concrete cover;

[0042] 110 C-shaped rubber blocks, 120 mortise and tenon rubber blocks, 130 carbon steel flanges, 140 rubber fixing connecting blocks, and 150 bolts;

[0043] The first C-shaped rubber block A111, the first C-shaped rubber block B112, the first C-shaped rubber block C113, and the first C-shaped rubber block D114. Detailed Implementation

[0044] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0045] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0047] Example 1

[0048] See Figures 1 to 4 As shown, this embodiment provides a negative Poisson's ratio frame structure, wherein the negative Poisson's ratio frame structure is composed of a first structure I, a second structure II, a third structure III, and a fourth structure IV, which are sequentially fixedly connected to form a loop to form a stable structure.

[0049] The first structure I includes:

[0050] Several C-shaped rubber blocks 110, mortise and tenon rubber blocks 120 and carbon steel flanges 130 are provided. The four sides of the mortise and tenon rubber blocks 120 near the end have reserved hollow positions. The hollow positions are connected to the C-shaped rubber blocks 110 in sequence with mortise and tenon joints around the mortise and tenon rubber blocks 120. The ends of the mortise and tenon rubber blocks 120 away from the hollow positions are fixedly connected to the carbon steel flanges 130.

[0051] The second structure II, the third structure III, and the fourth structure IV are the same as the first structure I. The first structure I, the second structure II, the third structure III, and the fourth structure IV are connected by C-shaped rubber blocks 110 between adjacent structures through rubber fixing connecting blocks 140, forming a negative Poisson's ratio frame structure.

[0052] The negative Poisson's ratio frame structure according to an embodiment of the present invention, by using mortise and tenon joints to connect the frame layers sequentially to form a negative Poisson's ratio frame loop structure, makes it not only stable but also elastic. While ensuring that it can withstand a large load, it can also allow a certain amount of deformation to offset a certain amount of seismic energy, thereby improving the overall performance of the negative Poisson's ratio frame structure and having a better effect when applied to seismic isolation and damping.

[0053] According to some embodiments of the present invention, the C-shaped rubber block 110 includes a first C-shaped rubber block A111, a first C-shaped rubber block B112, a first C-shaped rubber block C113, and a first C-shaped rubber block D114. The first C-shaped rubber blocks A111, B112, C113, and D114 are sequentially connected to the hollowed-out position by tenon and mortise. The vertical part of the first C-shaped rubber block C113 and the vertical part of the first C-shaped rubber block D114 are provided with grooves for the rubber fixing connecting block 140 to connect two adjacent structures.

[0054] According to some embodiments of the present invention, the first C-shaped rubber block C113 and the first C-shaped rubber block D114 are arranged adjacent to each other, so as to facilitate the fixed connection of the C-shaped rubber blocks 110 between adjacent structures by the rubber fixing connection block 140, so that the first structure I, the second structure II, the third structure III and the fourth structure IV are fixedly connected in sequence to form a loop to form a stable negative Poisson's ratio frame structure.

[0055] According to some embodiments of the present invention, the number of mortise and tenon rubber blocks 120 in the first structure I is two, and they are symmetrically arranged about the C-shaped rubber block 110. The cross-sectional shape of the mortise and tenon rubber blocks 120 is a right quadrangular prism with a square base, and each of the four sides is provided with a hollow position so that the two ends of the C-shaped rubber block 110 can be embedded and secured.

[0056] Example 2

[0057] See Figures 5 to 6 As shown, this embodiment provides a resonator, including a resonator housing and a concrete encapsulation box, wherein the resonator housing includes:

[0058] Negative Poisson's ratio frame structure 1;

[0059] The spherical steel column 2 has four evenly distributed mounting planes on its surface, passing through the plane containing the center of the sphere.

[0060] The first circular NPR board 3 is fixedly installed on the mounting plane, and a negative Poisson's ratio frame structure 1 is fixedly installed on the side of the first circular NPR board 3 away from the mounting plane.

[0061] The second circular NPR plate 4 is fixedly installed on the negative Poisson's ratio frame structure 1, which is far away from the first circular NPR plate 3, to form a resonator inclusion.

[0062] The concrete encapsulation box consists of a main body 5 with openings on both sides, a first concrete cover 6, and a second concrete cover 7. The resonator is contained inside the concrete encapsulation box to form the resonator.

[0063] According to the resonator of the present invention, the overall structure designed by the present invention can effectively open a low-frequency ultra-wide bandgap when seismic waves interact. When seismic waves within this bandgap frequency range act on a novel metamaterial surface wave isolation barrier composed of NPR cross-shaped spherical steel columns, the isolation barrier converts the low-frequency surface waves within this frequency range into body waves propagating to the ground, thereby achieving the purpose of attenuating low-frequency seismic waves and further protecting existing buildings on the ground surface.

[0064] According to some embodiments of the present invention, the spherical steel column 2 is made of high-quality carbon steel. The spherical steel column 2 consists of three steel columns and a steel ball. The three steel columns are the same size and material, and the steel columns and the steel ball are made of the same material. One steel column is set in the vertical direction, and the other two steel columns are set in the horizontal direction and the front-back direction, respectively. The three steel columns pass through the inside of the steel ball and intersect at the midpoint. The diameter of the steel column is equal to the diameter of the circumcircle of the negative Poisson's ratio frame structure 1. This allows it to receive the energy transmitted by seismic waves well without producing large deformations that could cause the overall structure to become unstable.

[0065] According to some embodiments of the present invention, the concrete encapsulation box body 5 is a hollow cuboid structure, the outer side of the concrete encapsulation box body 5 is rectangular, and the opening size of the concrete encapsulation box body 5 is equal to the size of the first concrete cover 6 and the second concrete cover 7, so as to uniformly receive the wave energy of the earthquake.

[0066] According to some embodiments of the present invention, the negative Poisson's ratio frame structure 1 and the first circular NPR plate 3 are fixedly connected by a carbon steel flange 130 and bolts 150;

[0067] The negative Poisson's ratio frame structure 1 is fixedly connected to the second circular NPR plate 4 by carbon steel flange 130 and bolts 150.

[0068] Example 3

[0069] Based on the above embodiments, this embodiment provides a specific resonator structure, including a negative Poisson's ratio frame structure 1 with dimensions of length:width:height = 0.42m:0.42m:0.24m; each NPR circular plate has a dimension of r = 0.3m; the spherical steel columns 2 have dimensions of radius r = 0.3m in the front-to-back, vertical, and horizontal directions; a first concrete cover 6 and a second concrete cover 7, each with dimensions of length a:width b:depth c = 1.9m:1.9m:0.162m; and a material density of 1050 kg / m³ in the frame layer of the negative Poisson's ratio frame structure 1. 3 Young's modulus 2.0 × 10 6 Pa, Poisson's ratio μ = 0.3; concrete density ρ = 2500 kg / m³ 3 Young's modulus E = 4 × 10 10 Pa, Poisson's ratio μ = 0.28; steel column density ρ = 7850 kg / m³ 3 Young's modulus E = 2.1 × 10 11 Pa, Poisson's ratio μ = 0.28, and the dispersion curve obtained by software simulation calculation based on the resonator of this embodiment (e.g.) Figure 7 (As shown). Figure 7The band gap opened by the novel metamaterial structure that can isolate surface waves ranges from 0.81 to 17.01 Hz. As can be seen from the figure, the resonator structure has a great isolation effect on surface waves.

[0070] Example 4

[0071] This embodiment provides a resonator mounting method, which includes the following:

[0072] The pre-installed concrete encapsulation box includes placing a second concrete cover 7 on the mounting base, and then placing the concrete encapsulation box body 5 on the second concrete cover 7.

[0073] The resonator inclusions are assembled by sequentially connecting the first circular NPR plate 3, the negative Poisson's ratio frame structure 1, and the second circular NPR plate 4 onto the mounting plane of the spherical steel column 2, completing the single-position assembly. This process is repeated to assemble the remaining three mounting planes of the spherical steel column 2, thus obtaining the resonator inclusions.

[0074] The resonator is assembled by placing the resonator contents into the second concrete cover 7, and then placing the first concrete cover 6 onto the concrete encapsulation box body 5 to obtain the resonator.

[0075] Example 5

[0076] This embodiment provides a surface wave barrier device, which includes a plurality of resonators as described above periodically arranged around the surface of a building to form a surface wave barrier for the building, which can isolate surface waves that are harmful to existing surface buildings and generate low-frequency bandgap characteristics.

[0077] Specifically, in Example 2, the number of resonators is set to 36. The resonator structure is composed of three materials: artificial crystal metamaterial rubber, reinforced concrete, and carbon steel. The metamaterial structure is arranged in 6 columns horizontally and 6 columns vertically, and is placed around the building.

[0078] According to an embodiment of the present invention, a surface wave barrier device is formed by periodically arranging the seismic isolation resonators of the present invention around existing surface buildings (structures) to create a novel metamaterial surface wave isolation barrier composed of NPR cross-shaped spherical steel columns. When interacting with seismic waves, the present invention opens a low-frequency ultra-wide bandgap. When seismic waves within this bandgap frequency range act on the NPR cross-shaped spherical steel column composite metamaterial surface wave isolation barrier, the isolation barrier converts the low-frequency surface waves within this frequency range into body waves propagating to the ground, thereby achieving the purpose of attenuating low-frequency seismic waves and protecting existing surface buildings (structures).

[0079] When seismic waves radiate onto a novel metamaterial surface wave isolation barrier composed of NPR cross-shaped spherical steel columns, the surface waves that are harmful to existing surface buildings within the band gap generated by the resonance effect of the novel metamaterial structure that simultaneously isolates surface waves will be isolated, thereby achieving the vibration isolation effect of low-frequency seismic waves.

[0080] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0081] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0082] Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The reference to "embodiment" herein means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily indicate the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0083] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A negative Poisson's ratio frame structure, characterized in that, The negative Poisson's ratio frame structure is composed of a first structure (I), a second structure (II), a third structure (III), and a fourth structure (IV) that are sequentially fixedly connected to form a loop and thus a stable structure. The first structure (I) includes: A number of C-shaped rubber blocks (110), mortise and tenon rubber blocks (120), and carbon steel flanges (130) are provided. The four sides of the mortise and tenon rubber blocks (120) near the ends are reserved with hollowed-out positions. The hollowed-out positions are used to connect the C-shaped rubber blocks (110) in sequence with mortise and tenon joints around the mortise and tenon rubber blocks (120). The ends of the mortise and tenon rubber blocks (120) away from the hollowed-out positions are fixedly connected to the carbon steel flanges (130). The second structure (II), the third structure (III), and the fourth structure (IV) are all the same as the first structure (I). The first structure (I), the second structure (II), the third structure (III), and the fourth structure (IV) are connected by C-shaped rubber blocks (110) between adjacent structures through rubber fixing connecting blocks (140) to form a negative Poisson's ratio frame structure.

2. The negative Poisson's ratio frame structure according to claim 1, characterized in that, The C-shaped rubber block (110) includes a first C-shaped rubber block A (111), a first C-shaped rubber block B (112), a first C-shaped rubber block C (113), and a first C-shaped rubber block D (114). The first C-shaped rubber block A (111), the first C-shaped rubber block B (112), the first C-shaped rubber block C (113), and the first C-shaped rubber block D (114) are sequentially connected to the hollowed-out position by tenon and mortise. The vertical part of the first C-shaped rubber block C (113) and the vertical part of the first C-shaped rubber block D (114) are provided with grooves for connecting two adjacent structures by the rubber fixing connecting block (140).

3. The negative Poisson's ratio frame structure according to claim 2, characterized in that, The first C-shaped rubber block C (113) and the first C-shaped rubber block D (114) are arranged adjacent to each other, so as to facilitate the fixed connection of the C-shaped rubber blocks (110) between adjacent structures by means of rubber fixing connection block (140).

4. The negative Poisson's ratio frame structure according to claim 1, characterized in that, The first structure (I) has two mortise and tenon rubber blocks (120), which are symmetrically arranged about the C-shaped rubber block (110). The cross-sectional shape of the mortise and tenon rubber blocks (120) is a right quadrangular prism with a square base and hollowed-out positions on all four sides.

5. A resonator, characterized in that, It includes the resonator inclusion and the concrete enclosure, wherein the resonator inclusion includes: The negative Poisson's ratio frame structure (1) as described in any one of claims 1 to 4; The spherical steel column (2) has several symmetrically distributed installation planes on its surface, passing through the plane where the center of the spherical steel column (2) is located. The first circular NPR board (3) is fixedly installed on the mounting plane, and a negative Poisson's ratio frame structure (1) is fixedly installed on the side of the first circular NPR board (3) away from the mounting plane. The second circular NPR plate (4) is fixedly installed on the negative Poisson's ratio frame structure (1) away from the first circular NPR plate (3) to form a resonator inclusion; The concrete encapsulation box consists of a concrete encapsulation box body (5) with openings on both sides, a first concrete cover (6), and a second concrete cover (7). The resonator is contained within the concrete encapsulation box to form a resonator.

6. The resonator according to claim 5, characterized in that, The spherical steel column (2) is made of carbon steel. The spherical steel column (2) consists of three steel columns and a steel ball. The three steel columns are the same size and material. The steel columns and the steel ball are made of the same material. One of the steel columns is set in the vertical direction, and the other two steel columns are set in the horizontal direction and the front and back direction, respectively. The three steel columns pass through the inside of the steel ball. The three steel columns intersect at the midpoint, and the diameter of the steel column is equal to the diameter of the circumcircle of the negative Poisson's ratio frame structure (1).

7. The resonator according to claim 5, characterized in that, The concrete sealing box body (5) is a hollow cuboid structure. The outer side of the concrete sealing box body (5) is rectangular. The opening size of the concrete sealing box body (5) is equal to the size of the first concrete cover (6) and the second concrete cover (7).

8. The resonator according to claim 5, characterized in that, The negative Poisson's ratio frame structure (1) and the first circular NPR plate (3) are fixedly connected by carbon steel flange (130) and bolts (150); The negative Poisson's ratio frame structure (1) and the second circular NPR plate (4) are fixedly connected by carbon steel flange (130) and bolts (150).

9. A method for mounting a resonator, characterized in that, The method for installing the resonator as described in claim 5 includes the following: The pre-installed concrete encapsulation box includes placing a second concrete cover (7) on the mounting base, and then placing the concrete encapsulation box body (5) on the second concrete cover (7); The resonator inclusions are assembled by sequentially connecting the first circular NPR plate (3), the negative Poisson's ratio frame structure (1), and the second circular NPR plate (4) and installing them on the mounting plane of the spherical steel column (2) to complete the single-position assembly. This process is repeated to assemble the remaining three mounting planes of the spherical steel column (2) to obtain the resonator inclusions. The resonator is assembled by placing the resonator contents into the second concrete cover (7) and then placing the first concrete cover (6) onto the concrete encapsulation box body (5) to obtain the resonator.

10. A surface wave barrier device, characterized in that, It includes several resonators as described in claim 5, which are periodically arranged around the ground surface of the building to form a surface wave barrier for the building.

Images