Asynchronous staged yield metal damper

Abstract

The utility model discloses an asynchronous staged yielding metal damper which comprises an outer plate and an inner plate and further comprises at least three sets of metal dampers, the outer plate comprises a bolt fixing section, an outer force transmission plate and an opening face, and a rectangular hole allowing the inner plate to penetrate through is formed in the opening face; at least three groups of metal dampers are arranged between the outer plate and the inner plate, the metal dampers comprise eight U-shaped metal dampers, and the upper surface and the lower surface of the inner plate are connected with the outer plate through the four U-shaped metal dampers; the inner plate comprises an oblong hole force transmission section, a round hole fixing section and an outer stress section, an oblong hole and a round hole I are formed in the oblong hole force transmission section and the round hole fixing section respectively, and the oblong hole and the round hole I can be connected with a round hole III of the U-shaped metal damper through high-strength bolts. According to the asynchronous staged yield metal damper, only the first-stage energy consumption unit works independently when small displacement occurs, the first-stage energy consumption unit and the second-stage energy consumption unit work together under the large displacement condition, and multi-stage energy consumption is achieved.

Description

Technical Field

[0001] This utility model relates to the field of energy dissipation and vibration reduction technology, specifically to an asynchronous staged yielding metal damper. Background Technology

[0002] Energy dissipation and vibration reduction technology, as an important means of mitigating earthquake damage, has been widely used in the construction field in recent years. This technology effectively absorbs and dissipates seismic energy by adding energy-dissipating and vibration-reducing devices to buildings, thereby reducing the impact of earthquakes on structures. Metal dampers, as a common type of vibration reduction device, primarily dissipate energy through the plastic deformation of energy-dissipating steel plates. However, currently used metal dampers suffer from a single energy dissipation method, which no longer meets the current performance-based design philosophy and my country's seismic fortification goal of "no damage in minor earthquakes, repairable in moderate earthquakes, and no collapse in major earthquakes."

[0003] In response to the problems existing in the current energy dissipation and vibration reduction technologies, dampers that can yield and dissipate energy in stages under earthquakes of different intensities have become the focus of research. Utility Model Content

[0004] The purpose of this invention is to address the problem of the single energy dissipation mode of current metal dampers by providing an asynchronous staged yielding metal damper, which realizes staged energy dissipation and vibration reduction.

[0005] The technical solution of this utility model is as follows:

[0006] An asynchronous, staged yielding metal damper includes an outer plate and an inner plate, and at least three sets of metal dampers. The outer plate includes a bolt fixing section, an outer force transmission plate, and an opening surface. A rectangular hole is provided on the opening surface for the inner plate to pass through. At least three sets of metal dampers are provided between the outer plate and the inner plate. The metal dampers include eight U-shaped metal dampers. The upper and lower surfaces of the inner plate are connected to the outer plate through four U-shaped metal dampers.

[0007] The inner plate includes an elongated hole force transmission section, a circular hole fixing section, and an external force-bearing section. The elongated hole force transmission section and the circular hole fixing section are respectively provided with an elongated hole and a circular hole I. Both the elongated hole and the circular hole I can be connected to the circular hole III of the U-shaped metal damper by high-strength bolts.

[0008] Furthermore, the U-shaped metal damper includes a fixed section, a straight section, and a curved section, with a circular hole III disposed on the fixed section.

[0009] Furthermore, the bolt fixing section of the outer plate is provided with a set of reserved holes for connecting circular hole III, and the diameter of the reserved hole set is consistent with the diameter of circular hole III.

[0010] Furthermore, the diameter of the oblong hole is the same as that of the circular hole III, and the length of the oblong hole is greater than the length of the circular hole III.

[0011] Furthermore, the elongated holes and circular holes I on the inner plate are arranged at equal intervals, and the circular holes I are arranged between the two sets of elongated holes.

[0012] Furthermore, the bolt fixing section and the opening surface form a rectangular frame, and the outer force transmission plate is set on the side of the frame; the outer force-bearing section extends out of the rectangular hole, and the outer force-bearing section and the outer force transmission plate are located on the same horizontal plane, and the outer force-bearing section and the outer force transmission plate are symmetrically arranged relative to the frame.

[0013] Furthermore, the external force transmission plate is provided with bolt connection holes, and the external force-bearing section is provided with circular hole II. Both the bolt connection holes and circular hole II are connected to the external building.

[0014] Furthermore, the circular holes III of the first set of metal dampers are connected to the circular holes I of the inner plate and the reserved hole group of the outer plate, and the circular holes III of the other two sets of metal dampers are connected to the elongated holes of the inner plate and the reserved hole group of the outer plate.

[0015] Furthermore, the other two sets of metal dampers are connected by high-strength bolts to the long oval hole force transmission section to form asynchronous force transmission, control the starting displacement of the metal dampers, and form asynchronous staged yielding.

[0016] Compared with existing technologies, the beneficial effects of this utility model are:

[0017] 1. An asynchronous, staged yielding metal damper features an elongated hole design in the inner plate, effectively enabling asynchronous force transmission between different U-shaped metal dampers. The elongated hole and bolts act as asynchronous force transmission devices, controlling the starting displacement of the U-shaped metal dampers at both ends. This allows for setting the starting displacement according to actual engineering requirements, achieving the "double yield point" performance characteristic of the asynchronous, staged yielding metal damper. Only the middle U-shaped metal damper provides initial stiffness, making it more sensitive under small earthquakes. Under moderate to large earthquakes, the primary and secondary energy dissipation units work together, resulting in significant energy dissipation.

[0018] 2. An asynchronous, staged yielding metal damper that allows for faster post-earthquake repair. In the event of energy-consuming damage to the intermediate U-shaped metal damper during minor earthquakes, the bolted connection method ensures rapid replacement and quick restoration of service. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an asynchronous, staged yielding metal damper.

[0020] Figure 2 This is a cross-sectional schematic diagram of the overall structure of an asynchronous, staged yielding metal damper.

[0021] Figure 3 This is a schematic diagram of the inner plate of an asynchronous, staged yielding metal damper.

[0022] Figure 4 This is a schematic diagram of a U-shaped metal damper, which is an asynchronous, staged yielding metal damper.

[0023] Figure 5 This is a schematic diagram showing the connection between the U-shaped metal damper and the fixed section of the inner plate circular hole in an asynchronous staged yielding metal damper.

[0024] Figure 6 This is a schematic diagram showing the connection between the U-shaped metal damper and the force transmission section of the elongated hole in the inner plate of an asynchronous, staged yielding metal damper.

[0025] Attached reference numerals: 1: outer plate, 1-1: bolt fixing section, 1-2: outer force transmission plate;

[0026] 2: Inner plate, 2-1: Force transmission section with oblong hole, 2-1-1: Oblong hole, 2-2: Fixed section with round hole, 2-2-1: Round hole I, 2-3: External force-bearing section, 2-3-1: Round hole II;

[0027] 3: U-shaped metal damper; 3-1: Fixed section; 3-1-1: Circular hole III; 3-2: Straight section; 3-3: Bending section;

[0028] 4: High-strength bolts. Detailed Implementation

[0029] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0031] Please see Figure 1-3 An asynchronous, staged yielding metal damper, such as Figure 1 and Figure 2As shown, it includes an outer plate 1 and an inner plate 2, and also includes at least three sets of metal dampers. The outer plate 1 includes a bolt fixing section 1-1, an outer force transmission plate 1-2, and an opening surface. A rectangular hole is provided on the opening surface for the inner plate 2 to pass through. At least three sets of metal dampers are provided between the outer plate 1 and the inner plate 2. The metal dampers include eight U-shaped metal dampers 3. The upper and lower surfaces of the inner plate 2 are connected to the outer plate 1 through four U-shaped metal dampers 3.

[0032] like Figure 3 As shown, the inner plate 2 includes an elongated hole force transmission section 2-1, a circular hole fixing section 2-2, and an external force-bearing section 2-3. The elongated hole force transmission section 2-1 and the circular hole fixing section 2-2 are respectively provided with an elongated hole 2-1-1 and a circular hole I 2-2-1, as shown. Figure 5 and Figure 6 As shown, both the oblong hole 2-1-1 and the circular hole I 2-2-1 can be connected to the circular hole III 3-1-1 of the U-shaped metal damper 3 via high-strength bolts 4. The oblong hole 2-1-1 serves as the second-order force-bearing part, the circular hole fixing section 2-2 is used to fix the U-shaped metal damper 3 to the inner plate 2, and the outer force-bearing section 2-3 serves as the part of the inner plate 2 that transmits force outward.

[0033] The U-shaped metal damper 3, which is completely fixed in the middle, serves as the first-level energy dissipation unit. The two U-shaped metal dampers 3 at both ends, which are only subjected to force after the high-strength bolt 4 contacts the elongated hole 2-1-1, serve as the second-level energy dissipation units, forming an overall energy dissipation device.

[0034] The U-shaped metal damper 3 is directly fixed to the outer plate 1 by high-strength bolts 4 to provide a small initial stiffness, ensuring a sensitive response under small earthquakes and a certain energy dissipation capacity. The U-shaped metal dampers 3 at both ends are connected to the long oval holes 2-1 at both ends of the inner plate 2 by high-strength bolts 4 to achieve asynchronous force transmission, control the displacement of the U-shaped metal dampers 3 at both ends, realize asynchronous staged yielding, and realize the first-level energy dissipation unit and the second-level energy dissipation unit working together under large displacement conditions to achieve multi-stage energy dissipation.

[0035] like Figure 4 As shown, the U-shaped metal damper 3 includes a fixed section 3-1, a straight section 3-2 and a curved section 3-3, and a circular hole Ⅲ 3-1-1 is provided on the fixed section 3-1.

[0036] The bolt fixing section 1-1 of the outer plate 1 is provided with a set of reserved holes for connecting the circular hole Ⅲ3-1-1, and the diameter of the reserved hole set is the same as the diameter of the circular hole Ⅲ3-1-1. The reserved hole set is connected to the circular hole Ⅲ3-1-1 by high-strength bolts.

[0037] The diameter of the oblong hole 2-1-1 is the same as that of the round hole Ⅲ3-1-1. The length of the oblong hole 2-1-1 is greater than that of the round hole Ⅲ3-1-1. The length is determined by the actual situation.

[0038] The elongated holes 2-1-1 and the round holes I 2-2-1 on the inner plate 2 are arranged at equal intervals, and the round holes I 2-2-1 are located between the two sets of elongated holes 2-1-1.

[0039] One set of metal dampers with round holes Ⅲ3-1-1 are connected to round holes Ⅰ2-2-1 of inner plate 2 and reserved holes of outer plate 1. The other two sets of metal dampers with round holes Ⅲ3-1-1 are connected to oblong holes 2-1-1 of inner plate 2 and reserved holes of outer plate 1.

[0040] The other two sets of metal dampers are connected to the long circular hole force transmission section 2-1 by high-strength bolts 4 to form asynchronous force transmission, control the starting displacement of the metal dampers, and form asynchronous staged yielding.

[0041] The design of the elongated hole 2-1-1 in the inner plate 2 effectively realizes the asynchronous force distribution of different U-shaped metal dampers 3. The elongated hole 2-1-1 and the high-strength bolt 4 act as asynchronous force transmission devices, controlling the starting displacement of the U-shaped metal dampers 3 at both ends. It supports setting the starting displacement according to actual engineering needs, realizing the "double yield point" performance characteristics of the asynchronous staged yielding metal damper. Only the middle U-shaped metal damper 3 provides the initial stiffness, making it more sensitive under small earthquakes. Under medium and large earthquakes, the primary energy dissipation unit and the secondary energy dissipation unit work together, resulting in significant seismic energy dissipation.

[0042] The bolt fixing section 1-1 and the opening face form a rectangular frame, and the external force transmission plate 1-2 is set on the side of the frame; the external force receiving section 2-3 extends out of the rectangular hole, and the external force receiving section 2-3 and the external force transmission plate 1-2 are located on the same horizontal plane, and the external force receiving section 2-3 and the external force transmission plate 1-2 are symmetrically arranged with respect to the frame.

[0043] Bolt connection holes are provided on the external force transmission plate 1-2, and circular holes II2-3-1 are provided on the external force-bearing section 2-3. Both the bolt connection holes and circular holes II2-3-1 are connected to the external building. The bolt connection holes and circular holes II2-3-1 are consistent with the size of the connecting bolts used for them.

[0044] The embodiments described above merely illustrate specific implementation methods of this application, and while the descriptions are detailed and specific, they should not be construed as limiting the scope of protection of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the technical solution of this application, and these modifications and improvements all fall within the scope of protection of this application.

Claims

1. An asynchronous staged yielding metal damper, comprising an outer plate (1) and an inner plate (2), characterized in that, It also includes at least three sets of metal dampers. The outer plate (1) includes a bolt fixing section (1-1), an outer force transmission plate (1-2), and an opening surface. A rectangular hole is provided on the opening surface for the inner plate (2) to pass through. At least three sets of metal dampers are provided between the outer plate (1) and the inner plate (2). The metal dampers include eight U-shaped metal dampers (3). The upper and lower surfaces of the inner plate (2) are connected to the outer plate (1) through four U-shaped metal dampers (3). The inner plate (2) includes an elongated hole force transmission section (2-1), a round hole fixing section (2-2) and an external force-bearing section (2-3). The elongated hole force transmission section (2-1) and the round hole fixing section (2-2) are respectively provided with an elongated hole (2-1-1) and a round hole I (2-2-1). Both the elongated hole (2-1-1) and the round hole I (2-2-1) can be connected to the round hole III (3-1-1) of the U-shaped metal damper (3) by high-strength bolts (4).

2. The asynchronous staged yielding metal damper according to claim 1, characterized in that, The U-shaped metal damper (3) includes a fixed section (3-1), a straight section (3-2) and a curved section (3-3), with a circular hole III (3-1-1) disposed on the fixed section (3-1).

3. The asynchronous staged yielding metal damper according to claim 1, characterized in that, The bolt fixing section (1-1) of the outer plate (1) is provided with a reserved hole group for connecting round hole III (3-1-1), and the hole diameter of the reserved hole group is consistent with the hole diameter of round hole III (3-1-1).

4. An asynchronous staged yielding metal damper according to claim 1, characterized in that, The diameter of the oblong hole (2-1-1) is the same as that of the circular hole III (3-1-1), and the length of the oblong hole (2-1-1) is greater than that of the circular hole III (3-1-1).

5. An asynchronous staged yielding metal damper according to claim 1, characterized in that, The elongated holes (2-1-1) and round holes I (2-2-1) on the inner plate (2) are arranged at equal intervals, and the round holes I (2-2-1) are arranged between the two sets of elongated holes (2-1-1).

6. An asynchronous staged yielding metal damper according to claim 1, characterized in that, The bolt fixing section (1-1) and the opening face form a rectangular frame, and the outer force transmission plate (1-2) is set on the side of the frame; the outer force receiving section (2-3) extends out of the rectangular hole, and the outer force receiving section (2-3) and the outer force transmission plate (1-2) are located on the same horizontal plane, and the outer force receiving section (2-3) and the outer force transmission plate (1-2) are symmetrically arranged with respect to the frame.

7. An asynchronous staged yielding metal damper according to claim 6, characterized in that, The external force transmission plate (1-2) is provided with bolt connection holes, and the external force-bearing section (2-3) is provided with round hole II (2-3-1). Both the bolt connection holes and round hole II (2-3-1) are connected to the external building.

8. An asynchronous staged yielding metal damper according to claim 3, characterized in that, The circular holes Ⅲ (3-1-1) of the first set of metal dampers are connected to the circular holes Ⅰ (2-2-1) of the inner plate (2) and the reserved hole group of the outer plate (1), and the circular holes Ⅲ (3-1-1) of the other two sets of metal dampers are connected to the elongated holes (2-1-1) of the inner plate (2) and the reserved hole group of the outer plate (1).

9. An asynchronous staged yielding metal damper according to claim 8, characterized in that, The other two sets of metal dampers are connected to the long circular hole force transmission section (2-1) by high-strength bolts (4) to form asynchronous force transmission, control the starting displacement of the metal dampers, and form asynchronous staged yielding.

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