Modular graded energy dissipation dampers to resist wind-induced vibrations and minor, moderate, major, and mega-earth earthquakes

Abstract

This invention discloses a modular graded energy dissipation damper for resisting wind-induced vibrations and minor, moderate, major, and mega-earthquakes, relating to the field of earthquake prevention and disaster reduction technology. It includes an upper base plate and a lower base plate, with energy dissipation components for minor, moderate, major, and mega-earthquakes arranged sequentially from both ends towards the middle between the upper and lower base plates. It also includes wind-induced vibration energy dissipation components located between the upper and lower base plates and on both sides of each energy dissipation component. Each wind-induced vibration energy dissipation component comprises two spaced-apart outer and inner plates, respectively connected to the upper and lower base plates, with a viscoelastic layer connecting the corresponding overlapping surfaces of the outer and inner plates. This invention improves metal dampers with a single yield point or unclear graded yield points, providing multiple distinct yield points for energy dissipation under minor, moderate, major, and mega-earthquakes. It also improves upon single-purpose earthquake-resistant energy dissipation dampers by combining earthquake energy dissipation components with wind-induced vibration energy dissipation components, achieving a combination of wind resistance and vibration reduction.

Description

Technical Field

[0001] This invention relates to the field of earthquake prevention and disaster reduction technology, and more specifically to a modular graded energy dissipation damper that resists wind-induced vibration, minor earthquakes, moderate earthquakes, major earthquakes and mega-earthquakes. Background Art

[0002] For high-rise and super high-rise buildings, under wind loads, simply increasing the structural mass to reduce wind-induced vibrations often significantly increases economic costs and has little effect. Therefore, many energy dissipation dampers designed for wind resistance are used in the engineering field. Among them, the tuned mass damper is the most well-known and mature. In recent years, viscoelastic dampers have also seen good development in the field of wind-resistant design.

[0003] To achieve effective energy dissipation of dampers at different seismic levels, thereby improving economy and safety, multi-level graded yield dampers have been widely researched and applied in recent years. For example, the applicant's earlier utility model patent application, authorized by publication number CN221545989 U, discloses a graded yield damper capable of resisting minor, moderate, major, and mega-earthquakes. It includes a lower base plate and an upper base plate spaced apart. A first yield energy dissipation element is installed between the lower and upper base plates. A second, third, and fourth yield energy dissipation element are installed between the lower base plate and a baffle. The first yield energy dissipation element comprises at least two parallel first energy-dissipating metal plates, with their upper and lower ends fixedly connected to the lower and upper base plates, respectively. The upper ends of the second, third, and fourth yield energy dissipation elements extend into the serrated grooves of the baffle, with gaps between them and the inner wall of the serrated grooves. This utility model achieves staged yielding according to the seismic source level, achieving a significant staged yielding effect and meeting the purpose of multi-level energy dissipation and vibration reduction.

[0004] However, the aforementioned patented technologies still have problems such as an unclear yield point, inability to dissipate energy under wind force, and complex structure.

[0005] Therefore, how to provide a graded energy dissipation damper that can coordinate various situations such as wind-induced vibration, minor earthquakes, moderate earthquakes, major earthquakes, and mega-earthquakes is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] In view of this, the present invention provides a modular graded energy dissipation damper that resists wind-induced vibration and small, medium, large and giant earthquakes. It can dissipate energy separately under small, medium, large, giant earthquakes and strong winds. Moreover, the energy dissipation components are modular and can be replaced and adjusted according to energy dissipation requirements.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A modular graded energy dissipation damper for resisting wind-induced vibration and minor, moderate, major, and mega-earthquakes includes an upper base plate and a lower base plate. From both ends towards the middle, the upper base plate and the lower base plate are sequentially provided with energy dissipation components for minor, moderate, major, and mega-earthquakes. The damper also includes wind-induced vibration energy dissipation components disposed between the upper base plate and the lower base plate, located on both sides of each energy dissipation component. Each wind-induced vibration energy dissipation component comprises two spaced-apart outer and inner side plates, respectively connected to the upper base plate and the lower base plate. A viscoelastic layer connects the corresponding overlapping surfaces of the outer and inner side plates.

[0009] Preferably, in the above-mentioned modular graded energy dissipation damper for resisting wind vibration and small, medium, large and giant earthquakes, the small earthquake energy dissipation component includes two X-shaped plates connected between the upper base plate and the lower base plate and located at both ends.

[0010] Preferably, in the above-mentioned modular graded energy dissipation damper for resisting wind-induced vibration and minor, moderate, major and mega-earthquakes, a baffle is fixed on the bottom surface of the upper base plate along its length direction. The baffle is located between the two X-shaped plates. The bottom edge of the baffle is provided with multiple positioning grooves along its length direction. The width of the multiple positioning grooves gradually increases from both ends of the baffle towards the middle. The positioning grooves of different widths correspond to the moderate earthquake energy dissipation component, the major earthquake energy dissipation component and the mega-earthquake energy dissipation component, respectively.

[0011] Preferably, in the above-mentioned modular graded energy dissipation damper for resisting wind-induced vibration and minor, moderate, major, and mega-earthquakes, the moderate earthquake energy dissipation component, the major earthquake energy dissipation component, and the mega-earthquake energy dissipation component all include a triangular plate. The bottom edge of the triangular plate is connected to the lower base plate, and the top of the triangular plate is located in the positioning groove, with a movable gap between it and the two sides of the positioning groove. The gap between the triangular plate and the positioning groove of the moderate earthquake energy dissipation component, the major earthquake energy dissipation component, and the mega-earthquake energy dissipation component increases sequentially.

[0012] Preferably, in the above-mentioned modular graded energy dissipation damper for resisting wind-induced vibration and minor, moderate, major and mega-earthquakes, the number of X-shaped plates is two, and the number of triangular plates in the moderate earthquake energy dissipation component, the major earthquake energy dissipation component and the mega-earthquake energy dissipation component is two each.

[0013] Preferably, in the above-mentioned modular graded energy dissipation damper for resisting wind-induced vibration and small, medium, large and giant earthquakes, the top edge of the outer side plate is connected to the upper base plate, and the bottom edge of the inner side plate is connected to the lower base plate.

[0014] Preferably, in the above-mentioned modular graded energy dissipation damper for resisting wind vibration and small, medium, large and giant earthquakes, two pads are symmetrically fixed along the length direction on the top surface of the upper substrate and the bottom surface of the lower substrate.

[0015] Preferably, in the above-mentioned modular graded energy dissipation damper for resisting wind vibration and small, medium, large and giant earthquakes, the two pads on the upper base plate are located inside the two outer side plates, and the two pads on the lower base plate are located outside the two inner side plates.

[0016] Preferably, in the above-mentioned modular graded energy dissipation damper for resisting wind vibration and small, medium, large and giant earthquakes, the pad is welded and fixed to the upper substrate and the lower substrate after being cut open.

[0017] Preferably, in the above-mentioned modular graded energy dissipation damper for resisting wind vibration and small, medium, large and giant earthquakes, the upper base plate and the lower base plate are provided with a plurality of screw holes for connecting various energy dissipation components, and are connected by bolts passing through the screw holes.

[0018] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a modular graded energy dissipation damper for resisting wind-induced vibration and small, medium, large and giant earthquakes, which has the following beneficial effects:

[0019] 1. This invention improves metal dampers with a single yield point or indistinct graded yielding, giving them multiple distinct yield points, enabling them to dissipate energy under minor, moderate, major, and mega-earthquakes.

[0020] 2. This invention improves upon a single earthquake-resistant energy dissipation damper by combining earthquake energy dissipation components with wind-induced energy dissipation components to achieve a combination of wind resistance and vibration reduction.

[0021] 3. This invention modularizes the damper, and each energy-consuming component is detachable and replaceable. The size of the energy-consuming components can be changed according to the actual shock absorption and wind resistance requirements. After an earthquake, the yielding component can be partially replaced, which has better economic efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 The attached figure is a structural schematic diagram of a modular graded energy dissipation damper for resisting wind-induced vibrations and small, medium, large, and giant earthquakes provided by the present invention.

[0024] Figure 2 The attached figure is a side view of a modular graded energy dissipation damper for resisting wind-induced vibrations and small, medium, large, and giant earthquakes provided by the present invention.

[0025] Figure 3 The attached figure is a structural schematic diagram of the small-vibration energy dissipation component provided by the present invention;

[0026] Figure 4 The attached figure is a structural schematic diagram of the moderate earthquake energy dissipation component, the large earthquake energy dissipation component, and the mega earthquake energy dissipation component provided by the present invention;

[0027] Figure 5 The attached figure is a structural schematic diagram of the wind-induced vibration energy dissipation component provided by the present invention;

[0028] Figure 6 The attached figure is a schematic diagram of the structure of the upper substrate provided by the present invention.

[0029] in:

[0030] 1-Upper substrate; 2-Lower substrate; 3-Minor vibration energy dissipation component; 4-Medium vibration energy dissipation component; 5-Major vibration energy dissipation component; 6-Giant vibration energy dissipation component; 7-Viscoelastic layer; 8-Outer side plate; 9-Inner side plate; 10-Wind vibration energy dissipation component; 11-Baffle; 12-Bolt; 13-Padded block; 14-Screw hole. Detailed Implementation

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See appendix Figure 1 and attached Figure 2 This invention discloses a modular graded energy dissipation damper for resisting wind-induced vibration and small, medium, large, and giant earthquakes. It includes an upper substrate 1 and a lower substrate 2. From both ends to the middle, the upper substrate 1 and the lower substrate 2 are provided with energy dissipation components for small earthquakes 3, medium earthquakes 4, large earthquakes 5, and giant earthquakes 6. It also includes wind-induced vibration energy dissipation components 10 disposed between the upper substrate 1 and the lower substrate 2 and located on both sides of each energy dissipation component. The wind-induced vibration energy dissipation component 10 includes two spaced outer plates 8 and inner plates 9 that are respectively connected to the upper substrate 1 and the lower substrate 2. A viscoelastic layer 7 is connected between the corresponding overlapping surfaces of the outer plates 8 and the inner plates 9.

[0033] In this embodiment, the wind vibration energy dissipation component 10 connects the outer side plate 8 to the upper substrate 1 and the inner side plate 9 to the lower substrate 2 via bolts 12. A layer of viscoelastic material is connected to the middle part where the outer side plate 8 and the inner side plate 9 overlap. Under wind vibration, the outer side plate 8 and the inner side plate 9 undergo relative displacement, and the viscoelastic material deforms and dissipates energy. The area and thickness of the viscoelastic layer can be adjusted by adjusting the overlapping area and thickness of the outer side plate 8 and the inner side plate 9.

[0034] See appendix Figure 3 The small-vibration energy dissipation component 3 includes two X-shaped plates connected between the upper substrate 1 and the lower substrate 2, located at both ends. Specifically, the small-vibration energy dissipation component 3 is an X-shaped plate with upper and lower bases. The bases have screw holes 14, which are connected to the upper substrate 1 and the lower substrate 2 by bolts 12. During a small vibration, the upper substrate 1 and the lower substrate 2 produce a small relative displacement, and the small-vibration energy dissipation component 3 deforms to yield and dissipate energy.

[0035] To further optimize the above technical solution, a baffle 11 is fixed on the bottom surface of the upper substrate 1 along its length direction. The baffle 11 is located between two X-shaped plates. In this embodiment, the baffle 11 is welded to the middle along the length direction of the upper substrate 1. The bottom edge of the baffle 11 is provided with multiple positioning grooves along its length direction. The width of the multiple positioning grooves gradually increases from both ends of the baffle 11 towards the middle. The positioning grooves of different widths correspond to the moderate earthquake energy dissipation component 4, the large earthquake energy dissipation component 5, and the giant earthquake energy dissipation component 6, respectively.

[0036] See appendix Figure 4 The moderate earthquake energy dissipation component 4, the large earthquake energy dissipation component 5, and the mega earthquake energy dissipation component 6 all include a triangular plate. The bottom edge of the triangular plate is connected to the lower base plate 2, and the top of the triangular plate is located in the positioning groove, with a movable gap between it and the two sides of the positioning groove. The gap between the triangular plate and the positioning groove of the moderate earthquake energy dissipation component 4, the large earthquake energy dissipation component 5, and the mega earthquake energy dissipation component 6 increases sequentially.

[0037] Specifically, the moderate earthquake energy dissipation component 4, the large earthquake energy dissipation component 5, and the mega earthquake energy dissipation component 6 are triangular plates with a lower base. The base has screw holes 14, which are connected to the lower base plate 2 via bolts 12. The upper end of the triangular plate is a free end, positioned in the center of the positioning groove of the baffle 11, with a certain gap between it and the side wall of the positioning groove. The length of the gap in the positioning groove determines the magnitude of the displacement that causes deformation of each energy dissipation component. The gap between the top of the mega earthquake energy dissipation component 6 and the groove is the largest, followed by the large earthquake energy dissipation component 5, and the smallest is the moderate earthquake energy dissipation component 4. During a moderate earthquake... In a minor earthquake, the yielding component 3 yields first. In a moderate earthquake, the top of the energy-dissipating component 4 begins to contact the sidewall of the positioning groove and deforms, yielding and dissipating energy. In a major earthquake, the energy-dissipating component 5 and the energy-dissipating component 6 do not contact the groove wall and do not participate in energy dissipation. In a major earthquake, after the energy-dissipating components 3 and 4 yield one by one, the energy-dissipating component 5 contacts the groove wall and yields, dissipating energy. In a major earthquake, after the energy-dissipating components 3, 4, and 5 yield one by one, the energy-dissipating component 6 contacts the groove wall and yields, dissipating energy, thus achieving graded energy dissipation.

[0038] In this embodiment, the length of the positioning groove can be determined according to the seismic resistance requirements.

[0039] Each energy-consuming component is connected to the upper substrate 1 and the lower substrate 2 by bolts 12, forming an independent module, thereby achieving modularity.

[0040] To further optimize the above technical solution, the number of X-shaped plates is two, and the number of triangular plates for the moderate earthquake energy dissipation component 4, the major earthquake energy dissipation component 5, and the mega earthquake energy dissipation component 6 is also two.

[0041] In this embodiment, the energy-consuming components are arranged symmetrically on the left and right, and the wind-induced vibration energy-consuming component 10 is installed in front of and behind the damper.

[0042] In this embodiment, the shape of the X-shaped plate in the middle and the upper part of the triangular plate in each energy-consuming component has a smooth curve transition to prevent stress concentration.

[0043] See appendix Figure 5 The top edge of the outer side plate 8 is connected to the upper substrate 1, and the bottom edge of the inner side plate 9 is connected to the lower substrate 2.

[0044] To further optimize the above technical solution, two pads 13 are symmetrically fixed along the length direction on the top surface of the upper substrate 1 and the bottom surface of the lower substrate 2.

[0045] See appendix Figure 2 The two pads 13 on the upper substrate 1 are located inside the two outer side plates 8, and the two pads 13 on the lower substrate 2 are located outside the two inner side plates 9.

[0046] To further optimize the above technical solution, the pad 13 is cut open and then welded and fixed to the upper substrate 1 and the lower substrate 2.

[0047] See appendix Figure 6 The upper substrate 1 and the lower substrate 2 are provided with multiple screw holes 14 for connecting various energy-consuming components, and are connected by bolts 12 passing through the screw holes 14. Specifically, two rows of screw holes 14 are provided on the outer side of the pad 13 on the upper substrate 1 and the inner side of the pad 13 on the lower substrate 1 for connecting the outer side plate 8 and the inner side plate 9 of the wind vibration energy-consuming component 10.

[0048] In this embodiment, the upper substrate 1, the lower substrate 2, the inner side plate 9 and the outer side plate 8 of the wind vibration energy dissipation component 10, the small earthquake energy dissipation component 3, the medium earthquake energy dissipation component 4, the large earthquake energy dissipation component 5, the giant earthquake energy dissipation component 6, the baffle 11, and the pad block 13 can be made of Q235 steel.

[0049] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0050] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A modular graded energy dissipation damper for resisting wind-induced vibration and minor, moderate, major, and mega-earthquakes, comprising an upper base plate (1) and a lower base plate (2), wherein a minor earthquake energy dissipation component (3), a moderate earthquake energy dissipation component (4), a major earthquake energy dissipation component (5), and a mega-earthquake energy dissipation component (6) are sequentially arranged between the upper base plate (1) and the lower base plate (2) from both ends toward the middle; characterized in that, Also includes: A wind-induced vibration energy dissipation component (10) is disposed between the upper substrate (1) and the lower substrate (2) and located on both sides of each energy dissipation component; the wind-induced vibration energy dissipation component (10) includes two spaced-apart outer plates (8) and inner plates (9) that are respectively connected to the upper substrate (1) and the lower substrate (2), and a viscoelastic layer (7) is connected between the corresponding overlapping surfaces of the outer plates (8) and the inner plates (9); The small vibration energy dissipation component (3) includes two X-shaped plates connected between the upper substrate (1) and the lower substrate (2) and located at both ends; A baffle (11) is fixed on the bottom surface of the upper substrate (1) along its length direction. The baffle (11) is located between the two X-shaped plates. Multiple positioning grooves are provided on the bottom edge of the baffle (11) along its length direction. The width of the multiple positioning grooves gradually increases from the two ends of the baffle (11) towards the middle. The positioning grooves of different widths correspond to the moderate earthquake energy dissipation component (4), the large earthquake energy dissipation component (5), and the mega earthquake energy dissipation component (6), respectively. The moderate earthquake energy dissipation component (4), the large earthquake energy dissipation component (5), and the mega earthquake energy dissipation component (6) all include a triangular plate. The bottom edge of the triangular plate is connected to the lower base plate (2). The top of the triangular plate is located in the positioning groove and there is a movable gap between it and the two sides of the positioning groove. The gap between the triangular plate and the positioning groove of the moderate earthquake energy dissipation component (4), the large earthquake energy dissipation component (5), and the mega earthquake energy dissipation component (6) increases sequentially. The upper substrate (1) and the lower substrate (2) are provided with a plurality of screw holes (14) for connecting various energy-consuming components, and are connected by bolts (12) passing through the screw holes (14).

2. The modular graded energy dissipation damper for resisting wind-induced vibration and small, medium, large, and mega-earthquakes according to claim 1, characterized in that, The number of X-shaped plates is two, and the number of triangular plates in the moderate earthquake energy dissipation component (4), the large earthquake energy dissipation component (5), and the mega earthquake energy dissipation component (6) is two.

3. A modular graded energy dissipation damper for resisting wind-induced vibration and minor, moderate, major, and mega-earthquakes according to any one of claims 1-2, characterized in that, The top edge of the outer side plate (8) is connected to the upper substrate (1), and the bottom edge of the inner side plate (9) is connected to the lower substrate (2).

4. A modular graded energy dissipation damper for resisting wind-induced vibrations and small, medium, large, and mega-earthquakes according to claim 3, characterized in that, Two pads (13) are symmetrically fixed along the length direction on the top surface of the upper substrate (1) and the bottom surface of the lower substrate (2).

5. A modular graded energy dissipation damper for resisting wind-induced vibration and small, medium, large, and mega-earth earthquakes according to claim 4, characterized in that, The two pads (13) on the upper substrate (1) are located inside the two outer side plates (8), and the two pads (13) on the lower substrate (2) are located outside the two inner side plates (9).

6. A modular graded energy dissipation damper for resisting wind-induced vibration and small, medium, large, and giant earthquakes according to claim 5, characterized in that, After the slit is made on the pad (13), it is welded and fixed to the upper substrate (1) and the lower substrate (2).

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