Reinforced annular metal damper

Abstract

The present invention relates to a reinforced annular metal damper, comprising: an annular plate, comprising a pair of straight sections arranged in parallel and opposite to each other, a pair of arc-shaped energy-absorbing sections integrally connected between the pair of straight sections and symmetrically arranged; the straight section comprises an elastic straight section and two energy-absorbing straight sections integrally connected to both ends of the elastic straight section, the energy-absorbing straight section is connected to the arc-shaped energy-absorbing section; a pair of connecting plates, vertically fixed to the elastic straight section and located on the outside of the annular plate; the connecting plate is provided for installation and connection with the main body of the building; and a reinforcing layer is attached and fixed to the straight section. By adopting the reinforcing layer to be fixed to the straight section, the strain at the thickness edge of the steel plate of the energy-absorbing straight section is reduced, so that the strain in the thickness direction of the steel plate is more uniform, thereby improving the ductility of the energy-absorbing straight section, greatly improving the working performance of the annular metal damper, and achieving a higher overall ductility.

Description

Technical Field

[0001] The invention relates to the field of dampers, in particular to a reinforced annular metal damper. Background Art

[0002] The reinforced annular metal damper includes an annular plate, which includes a pair of straight sections arranged parallel to each other up and down and a pair of arc-shaped energy-absorbing sections connected to the pair of straight sections and arranged opposite to each other left and right. The straight sections include elastic straight sections and energy-absorbing straight sections, and a connecting plate is fixed on the elastic straight sections. The annular metal damper is installed and connected to the building main body through a pair of connecting plates arranged up and down.

[0003] The annular metal damper is a bending yield type damper. During use, the energy dissipation straight section and the arc energy dissipation section will bend and deform until the steel plate yields when subjected to force. As the displacement increases, the geometric shapes of the energy dissipation straight section and the arc energy dissipation section will also change significantly, and the internal force will also change and redistribute accordingly. The maximum strain of the steel plate slows down the rate of increase with the displacement of the damper, thereby improving the ductility of the damper. However, due to the basic characteristics of its bending moment distribution, the large stress and strain area of ​​the annular metal damper during use, especially the junction of the energy dissipation straight section and the elastic straight section (i.e.: the consolidation point of the connecting plate and the straight section) is still prone to damage, which seriously affects the working performance of the annular metal damper. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a reinforced annular metal damper to solve the problem that the large stress and strain area in the prior art, especially the junction between the energy-absorbing straight section and the elastic straight section (i.e., the consolidation point of the connecting plate and the straight section), is easily damaged, which seriously affects the working performance of the annular metal damper.

[0005] The technical solution to achieve the above purpose is:

[0006] The present invention provides a reinforced annular metal damper, comprising:

[0007] The annular plate comprises a pair of straight sections arranged parallel to each other, and a pair of arc-shaped energy-absorbing sections integrally connected between the pair of straight sections and symmetrically arranged; the straight sections comprise an elastic straight section and two energy-absorbing straight sections integrally connected to two ends of the elastic straight section, and the energy-absorbing straight section is connected to the arc-shaped energy-absorbing section;

[0008] A pair of connecting plates, fixed vertically to the elastic straight section and located outside the annular plate; the connecting plates are used for installation and connection with the building main body;

[0009] The reinforcing layer is attached and fixed to the straight section.

[0010] The further improvement of the annular metal damper of the present invention is that:

[0011] The energy dissipation straight section is a large stress and strain area;

[0012] The end of the reinforcement layer is attached to the energy dissipation straight section.

[0013] The further improvement of the annular metal damper of the present invention is that the reinforcement layer comprises:

[0014] An inner reinforcement layer fixed to the inner side surface of the straight section;

[0015] The outer reinforcement layer is fixed to the outer side surface of the straight section.

[0016] A further improvement of the annular metal damper of the present invention is that the width of the inner reinforcement layer is the same as the width of the straight section.

[0017] The further improvement of the annular metal damper of the present invention is that:

[0018] The connecting plate includes a pair of ear plates vertically fixed to the outer side of the elastic straight section;

[0019] The outer reinforcement layer is placed between the pair of ear plates, and the width of the outer reinforcement layer is smaller than the width of the straight section.

[0020] A further improvement of the annular metal damper of the present invention is that the length of the reinforcement layer is the same as the length of the straight section.

[0021] A further improvement of the annular metal damper of the present invention is that the reinforcement layer is a carbon fiber strip.

[0022] A further improvement of the annular metal damper of the present invention is that the reinforcement layer is a steel plate.

[0023] The invention strengthens the beneficial effects of the annular metal damper:

[0024] The reinforced annular metal damper of the present invention is installed and connected with the main body of the building through a connecting plate. When the damper is horizontally displaced, the energy-absorbing straight section and the arc-shaped energy-absorbing section will bend and deform until the steel plate yields when subjected to force. As the displacement increases, the geometric shapes of the energy-absorbing straight section and the arc-shaped energy-absorbing section will also change greatly, and the internal force distribution will also change and redistribute accordingly. The energy-absorbing straight section is a large stress-strain area during the deformation process. By using a reinforcing layer fixed to the straight section, the strain at the edge of the steel plate thickness of the energy-absorbing straight section is reduced, making the strain in the thickness direction of the steel plate more uniform, thereby improving the ductility of the energy-absorbing straight section, greatly improving the working performance of the annular metal damper, and achieving a higher overall ductility. The present invention can solve the problem in the prior art that the annular metal damper is easily damaged in the large stress-strain area during use, especially at the junction of the energy-absorbing straight section and the elastic straight section (i.e., the consolidation point of the connecting plate and the straight section), which seriously affects the working performance of the annular metal damper. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the front view of the annular metal damper of the present invention.

[0026] Figure 2 for Figure 1 AA cross-sectional view.

[0027] Figure 3 It is a side view of the annular metal damper of the present invention.

[0028] Figure 4 for Figure 1 A cross-sectional view of the BB.

[0029] Figure 5 Schematic diagram of the annular plate of the annular metal damper of the present invention. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] See also Figure 1 , showing the front view of the annular metal damper of the present invention. Figure 2 for Figure 1 AA cross-sectional view. Figure 3 It is a side view of the annular metal damper of the present invention. Figure 4 for Figure 1 Cross-sectional view of BB. Figures 1 to 4 As shown, the annular metal damper of the present invention comprises:

[0032] The annular plate 10 includes a pair of straight sections 11 arranged parallel to each other, and a pair of arc-shaped energy-absorbing sections 12 integrally connected between the pair of straight sections 11 and symmetrically arranged; the straight section 11 includes an elastic straight section 110 and two energy-absorbing straight sections 111 integrally connected to both ends of the elastic straight section 110, and the energy-absorbing straight section 111 is connected to the arc-shaped energy-absorbing section 12;

[0033] A pair of connecting plates 20 are vertically fixed to the elastic straight section 110 and are located outside the annular plate 10; the connecting plates 20 are used for installation and connection with the building main body;

[0034] The reinforcement layer 30 is attached and fixed to the straight section 11 .

[0035] As a preferred embodiment of the annular metal damper of the present invention, refer to Figure 5 Schematic diagram of the annular plate of the annular metal damper of the present invention. Figure 5 As shown, the energy dissipation straight section 111 is a large stress and strain area; the end of the reinforcement layer 30 is attached to the energy dissipation straight section 111 .

[0036] Specifically, the annular metal damper of the present invention is installed and connected to the main body of the building through a connecting plate. When the damper is horizontally displaced, the energy-absorbing straight section and the arc-shaped energy-absorbing section will bend and deform under force until the steel plate yields. As the displacement increases, the geometric shapes of the energy-absorbing straight section and the arc-shaped energy-absorbing section will also change significantly, and the internal force distribution will also change and redistribute accordingly. The energy-absorbing straight section is a large stress-strain area during the deformation process. By using a reinforcing layer fixed to the straight section, the strain at the thickness edge of the steel plate of the energy-absorbing straight section is reduced, making the strain in the thickness direction of the steel plate more uniform, thereby improving the ductility of the energy-absorbing straight section, greatly improving the working performance of the annular metal damper, and achieving higher overall ductility.

[0037] As a preferred embodiment of the annular metal damper of the present invention, the reinforcement layer 30 includes: an inner reinforcement layer 31 fixed to the inner side surface of the straight section 11; and an outer reinforcement layer 32 fixed to the outer side surface of the straight section 11.

[0038] Alternatively, in one embodiment, only the inner side of the straight section 11 is fixed with a reinforcing layer. In another embodiment, only the outer side of the straight section 11 is fixed with a reinforcing layer. The specific method can be determined according to actual needs.

[0039] As a preferred embodiment of the annular metal damper of the present invention, the length of the reinforcement layer 30 is the same as the length of the straight section 11 .

[0040] As a preferred embodiment of the annular metal damper of the present invention, the width of the inner reinforcement layer 31 is the same as the width of the straight section 11. The size of the reinforcement layer 30 is determined according to actual needs.

[0041] As a preferred embodiment of the annular metal damper of the present invention, Figure 3 As shown, the connecting plate 20 includes a pair of ear plates vertically fixed to the outside of the elastic straight section 110; the outer reinforcement layer 32 is placed between the pair of ear plates, and the width of the outer reinforcement layer 32 is smaller than the width of the straight section 11. This facilitates the installation of the connecting plate 20 and the outer reinforcement layer 32.

[0042] As a preferred embodiment of the annular metal damper of the present invention, the reinforcement layer 30 is a carbon fiber strip.

[0043] Specifically, carbon fiber is a fiber with a diameter of about 5-10 microns, mainly composed of carbon atoms. Carbon fiber has several advantages, including high stiffness, high tensile strength, low weight, high chemical resistance, high temperature resistance and low thermal expansion. Carbon fiber is a high-strength high-modulus fiber with high strength and modulus along the fiber axis.

[0044] The carbon fiber strips are pasted on the inner and outer sides of the straight section 11 as a reinforcement layer 30. The energy dissipation straight section 111 is a large stress and strain area, and the carbon fiber strips are used to cover the energy dissipation straight section 111. Since the carbon fiber strips have high strength, by pasting the carbon fiber strips, part of the stress in the large stress and strain area can be shared to the carbon fiber strips, which can reduce the stress level in the large stress and strain area, reduce the stress of the annular plate itself, and thus improve the ductility of the large stress and strain area, so that the annular metal damper itself can reach a higher yield strain, and improve the overall ductility of the annular metal damper.

[0045] As a preferred embodiment of the annular metal damper of the present invention, the reinforcing layer 30 is a steel plate. The steel plate has certain rigidity and strength. The energy dissipation straight section 111 is a large stress and strain area, and the steel plate is used to cover the energy dissipation straight section 111. Since the steel plate has a high strength, the stress on the large stress and strain area can be shared to the steel plate through the steel plate, which can reduce the stress level on the large stress and strain area, reduce the stress of the annular plate itself, and improve the overall ductility of the annular metal damper.

[0046] In this embodiment, the ear plate is a trapezoidal plate. The trapezoidal plate includes a short side, a long side and a beveled side on both sides. The short side and the straight non-energy-consuming section of the trapezoidal plate are vertically fixedly connected. Specifically, the fixing is performed by welding. The number, shape and size of the ear plates of the connecting plate 20 are determined according to actual needs.

[0047] The beneficial effects of the annular metal damper of the present invention are:

[0048] The annular metal damper of the present invention is installed and connected to the main body of the building through a connecting plate. In use, the energy-absorbing straight section and the arc-shaped energy-absorbing section will bend and deform until the steel plate yields when subjected to force. As the displacement increases, the geometric shapes of the energy-absorbing straight section and the arc-shaped energy-absorbing section will also change significantly, and the internal force will also change and redistribute accordingly. The rate at which the maximum strain of the steel plate increases with the displacement of the damper slows down, thereby improving the ductility of the damper. However, due to the basic characteristics of its bending moment distribution, the annular metal damper is still prone to damage in the large stress-strain area during use, especially the junction between the energy-absorbing straight section and the elastic straight section (i.e., the consolidation point of the connecting plate and the straight section), which seriously affects the working performance of the annular metal damper. By using a reinforcing layer fixed to the straight section, the strain at the thickness edge of the steel plate of the energy-absorbing straight section is reduced, making the strain in the thickness direction of the steel plate more uniform, thereby improving the ductility of the energy-absorbing straight section, greatly improving the working performance of the annular metal damper, and achieving a higher overall ductility. The present invention can solve the problem in the prior art that the annular metal damper is easily damaged in the high stress and strain area during use, especially at the junction of the energy-consuming straight section and the elastic straight section (i.e., the consolidation point of the connecting plate and the straight section), which seriously affects the working performance of the annular metal damper.

[0049] The present invention is described in detail above in conjunction with the embodiments of the accompanying drawings. A person skilled in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the present invention, and the scope of protection of the present invention shall be defined by the scope of the attached claims.

Claims

1. A reinforced annular metal damper, characterized in that: include: The annular plate comprises a pair of straight sections arranged parallel to each other, and a pair of arc-shaped energy-absorbing sections integrally connected between the pair of straight sections and symmetrically arranged; the straight sections comprise an elastic straight section and two energy-absorbing straight sections integrally connected to two ends of the elastic straight section, and the energy-absorbing straight section is connected to the arc-shaped energy-absorbing section; A pair of connecting plates, fixed vertically to the elastic straight section and located outside the annular plate; the connecting plates are used for installation and connection with the building main body; The reinforcing layer is attached and fixed to the straight section.

2. The reinforced annular metal damper according to claim 1, characterized in that: The energy dissipation straight section is a large stress and strain area; The end of the reinforcement layer is attached to the energy dissipation straight section.

3. The reinforced annular metal damper according to claim 1, characterized in that: The reinforcement layer comprises: An inner reinforcement layer fixed to the inner side surface of the straight section; The outer reinforcement layer is fixed to the outer side surface of the straight section.

4. The annular metal damper according to claim 3, characterized in that: The width of the inner reinforcement layer is the same as the width of the straight section.

5. The annular metal damper according to claim 3, characterized in that: The connecting plate includes a pair of ear plates vertically fixed to the outer side of the elastic straight section; The outer reinforcement layer is placed between the pair of ear plates, and the width of the outer reinforcement layer is smaller than the width of the straight section.

6. The reinforced annular metal damper according to claim 1, characterized in that: The length of the reinforcement layer is the same as the length of the straight section.

7. The reinforced annular metal damper according to claim 1, characterized in that: The reinforcement layer is a carbon fiber strip.

8. The reinforced annular metal damper according to claim 1, characterized in that: The reinforcement layer is a steel plate.

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