Multi-level energy dissipation metal yield type damper

Abstract

The utility model discloses a multi-level energy dissipation metal yield type damper, which relates to the technical field of dampers and comprises a connecting component, a first-order energy dissipation unit and a second-order energy dissipation unit. The connecting assembly comprises an upper connecting plate, a lower connecting plate and a pushing piece; the first-order energy consumption unit comprises a first-order energy consumption plate and a first flange plate, and the first-order energy consumption plate is located in the center of the first flange plate; the second-order energy dissipation unit comprises a second-order energy dissipation plate, and a gap is reserved between the side end, away from the lower connecting plate, of the second-order energy dissipation plate and the side wall of the pushing piece. The upper connecting plate and the lower connecting plate are arranged to be connected with the building main body structure, under the condition of small earthquakes or wind vibration, the upper connecting plate only drives the first-order energy dissipation unit to conduct shearing energy dissipation, under the condition of medium earthquakes or large earthquakes, large displacement is generated, the upper connecting plate drives the second-order energy dissipation unit to conduct shearing energy dissipation together, and therefore the energy dissipation efficiency is improved. At the moment, the shear energy consumption units are increased, and the output damping force is increased, so that different energy consumption capacities are provided, and energy consumption requirements of different earthquake magnitudes are met.

Description

Technical Field

[0001] The utility model relates to the technical field of dampers, in particular to a multi-level energy-dissipating metal yielding damper. Background Art

[0002] With the development of science and the improvement of the living standards of human beings, the ability to prevent and resist earthquake disasters has been continuously improved. As an effective method to resist earthquakes, structural shock absorption technology has been continuously developed and applied with the progress of science. And this technology has become a relatively mature technology in the seismic resistance of engineering structures. The structural shock absorption control method changes the traditional seismic resistance method of improving the seismic resistance of structures by increasing the strength, stiffness and ductility of structures, but changes the vibration response of structures by adjusting or changing the dynamic parameters of structures, effectively protecting the safety of structures during earthquakes. Shock absorption technology has become an important means to resist earthquake disasters. Through shock absorption technology, the impact of earthquakes on buildings and people can be reduced, and people's lives and property safety can be protected.

[0003] The multi-level energy-dissipating metal yielding damper is a kind of damper with high cost performance in shock absorption technology and has been widely used in various buildings. However, it only has a single energy-dissipating ability and cannot meet the energy-dissipating requirements of different earthquake magnitudes. If the requirements are to be met, the number of dampers used will inevitably increase, resulting in an increase in cost. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a multi-level energy-dissipating metal yielding damper, which is used to solve the problem that the existing multi-level energy-dissipating metal yielding damper only has a single energy-dissipating ability and is difficult to meet the energy-dissipating requirements of different earthquake magnitudes.

[0005] To achieve the above purpose, the utility model provides a multi-level energy-dissipating metal yielding damper, including:

[0006] A connection component, including an upper connection plate and a lower connection plate which are opposite and spaced apart; a pushing member is provided on the upper connection plate;

[0007] A first-order energy-dissipating unit, including a first-order energy-dissipating plate arranged between the upper connection plate and the lower connection plate, and first flange plates arranged on both sides of the first-order energy-dissipating plate; the first-order energy-dissipating plate is located at the center of the first flange plates; the first flange plates are fixedly connected to the upper connection plate and the lower connection plate;

[0008] A second-order energy-dissipating unit, including a second-order energy-dissipating plate arranged on the lower connection plate; there is a spacing between the side end of the second-order energy-dissipating plate away from the lower connection plate and the side wall of the pushing member; the upper connection plate drives the pushing member to move under the action of an external force, thereby causing the second-order energy-dissipating plate to shear and deform.

[0009] As a further improvement of the present utility model, the pushing member includes limiting blocks arranged at intervals on the upper connecting plate; the limiting blocks are grouped in pairs and are respectively located on both sides of the first-order energy dissipation plate, and a limiting space is formed between the limiting blocks in each pair; one end of the second-order energy dissipation plate away from the lower connecting plate is located in the limiting space; there is a distance between the side wall of the second-order energy dissipation plate and the side wall of the limiting block.

[0010] As a further improvement of the present utility model, first stiffening ribs are respectively arranged on both sides of the second-order energy dissipation plate; a partition is arranged between the first stiffening ribs to divide the second-order energy dissipation plate into two parts, and fixing plates are arranged at the ends of the first stiffening ribs close to the upper connecting plate; notches are arranged on the fixing plates; stoppers fixedly connected to the upper connecting plate are arranged in the notches; the fixing plates are located in the limiting space, and there is a distance between the two ends of the fixing plates and the side walls of the limiting blocks to form a sliding space.

[0011] As a further improvement of the present utility model, the pushing member includes first limiting grooves arranged at intervals on the upper connecting plate; the first limiting grooves are located on both sides of the first-order energy dissipation plate; second limiting grooves corresponding to the first limiting grooves are arranged on the lower connecting plate; second flange plates are arranged on both sides of the second-order energy dissipation plate; one ends of the second-order energy dissipation plate and the second flange plates pass through the first limiting grooves and are located in the second limiting grooves, and pushing plates are arranged at the ends of the second-order energy dissipation plate and the second flange plates away from the second limiting grooves; the pushing plates are located in the first limiting grooves, and there is a distance between the two ends of the pushing plates and the inner walls of the first limiting grooves.

[0012] As a further improvement of the present utility model, the pushing member includes a pushing cavity arranged inside the first-order energy dissipation plate; one end of the second-order energy dissipation plate away from the lower connecting plate is located in the pushing cavity, and there is a distance between the second-order energy dissipation plate and the inner wall of the pushing cavity.

[0013] The beneficial effects of the present utility model are reflected in:

[0014] By setting the upper connecting plate and the lower connecting plate to be respectively connected to the building main structure, in the case of small earthquakes or wind vibrations, the upper connecting plate only drives the first-order energy dissipation unit to perform shear energy dissipation. In the case of medium or large earthquakes, when a large displacement occurs and the displacement is greater than the distance between the pushing member and the second-order energy dissipation unit, the upper connecting plate drives the second-order energy dissipation unit to perform shear energy dissipation together. At this time, the number of shear energy dissipation units participating increases, and the output damping force increases, thereby providing different energy dissipation capabilities to meet the energy dissipation requirements of different earthquake magnitudes. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of the multi-level energy dissipation metal yielding damper of the present utility model with a stopper.

[0016] Figure 2The front view of the multi-level energy-dissipating metal yielding damper of the present utility model with a stop block;

[0017] Figure 3 The sectional view of the multi-level energy-dissipating metal yielding damper of the present utility model with a stop block;

[0018] Figure 4 The structural schematic diagram of the upper connecting plate of the multi-level energy-dissipating metal yielding damper of the present utility model with a stop block;

[0019] Figure 5 The mechanical property curve diagram of the multi-level energy-dissipating metal yielding damper of the present utility model;

[0020] Figure 6 The overall structural schematic diagram of the multi-level energy-dissipating metal yielding damper of the present utility model with a first limiting groove;

[0021] Figure 7 The front view of the multi-level energy-dissipating metal yielding damper of the present utility model with a first limiting groove;

[0022] Figure 8 The sectional view of the multi-level energy-dissipating metal yielding damper of the present utility model with a first limiting groove;

[0023] Figure 9 The top view of the multi-level energy-dissipating metal yielding damper of the present utility model with a first limiting groove;

[0024] Figure 10 The structural schematic diagram of the connection between the second flange plate and the push plate of the multi-level energy-dissipating metal yielding damper of the present utility model;

[0025] Figure 11 The structural schematic diagram of the second limiting groove of the multi-level energy-dissipating metal yielding damper of the present utility model;

[0026] Figure 12 Another mechanical property curve diagram of the multi-level energy-dissipating metal yielding damper of the present utility model;

[0027] Figure 13 [[ID=4,4]]The overall structural schematic diagram of the multi-level energy-dissipating metal yielding damper of the present utility model with a push cavity;

[0028] Figure 14 The sectional schematic diagram of the multi-level energy-dissipating metal yielding damper of the present utility model with a push cavity;

[0029] Explanation of reference numerals:

[0030] 1. Upper connecting plate; 2. Lower connecting plate; 3. Pusher; 4. First-order energy dissipation plate; 5. First flange plate; 6. Second-order energy dissipation plate; 7. Limit block; 8. Limit space; 9. First stiffening rib; 10. Partition; 11. Fixed plate; 12. Notch; 13. Stopper; 14. Sliding space; 15. First limiting groove; 16. Second limiting groove; 17. Second flange plate; 18. Pusher plate; 19. Second stiffening rib; 20. Third stiffening rib; 21. Pusher cavity; 22. Fourth stiffening rib. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Example 1, see Figure 1 The multi-level energy dissipation metal yield damper of the utility model includes a connection component, a first-order energy dissipation unit, and a second-order energy dissipation unit.

[0033] Among them, the connecting assembly includes an upper connecting plate 1 and a lower connecting plate 2 that are relatively and spaced apart; a pushing member 3 is provided on the upper connecting plate 1; the first-order energy consumption unit includes a first-order energy consumption plate 4 arranged between the upper connecting plate 1 and the lower connecting plate 2, and a first flange plate 5 arranged on both sides of the first-order energy consumption plate 4, the first-order energy consumption plate 4 is located at the center of the first flange plate 5, and the first flange plate 5 is fixedly connected to the upper connecting plate 1 and the lower connecting plate 2; the second-order energy consumption unit includes a second-order energy consumption plate 6 arranged on the lower connecting plate 2, and a gap is left between the side end of the second-order energy consumption plate 6 away from the lower connecting plate 2 and the side wall of the pushing member 3; the upper connecting plate 1 drives the pushing member 3 to move under the action of external force, thereby causing the second-order energy consumption plate 6 to shear deform.

[0034] For further information, see Figures 1 - 4 The pushing member 3 includes limit blocks 7 arranged at intervals on the upper connecting plate 1. The limit blocks 7 are located on both sides of the first-order energy consumption plate 4 in groups of two, and a limit space 8 is formed between the limit blocks 7 in groups of two; the end of the second-order energy consumption plate 6 away from the lower connecting plate 2 is located in the limit space 8, and a gap is left between the side wall of the second-order energy consumption plate 6 and the side wall of the limit block 7.

[0035] Preferably, the upper connecting plate 1 and the lower connecting plate 2 are both rectangular plate structures, the first-order energy consumption plate 4 and the first flange plate 5 form an "H"-shaped structure, and the two ends of the first-order energy consumption plate 4 and the first flange plate 5 are fixedly connected to the upper connecting plate 1 and the lower connecting plate 2 respectively.

[0036] Preferably, four sets of limiting blocks 7 are provided. Two sets of limiting blocks 7 form groups in pairs in the horizontal direction, and the distance between the two sets of limiting blocks 7 in the horizontal direction forms a limiting space 8.

[0037] Preferably, the first-stage energy dissipation plate 4 is located between the two sets of limiting blocks 7 in the vertical direction.

[0038] Further, referring to Figures 1 - 4 , first stiffening ribs 9 are respectively provided on both sides of the second-stage energy dissipation plate 6. A partition plate 10 is provided between the first stiffening ribs 9 to divide the second-stage energy dissipation plate 6 into two parts. A fixing plate 11 is provided at the end of the first stiffening rib 9 adjacent to the upper connecting plate 1. A notch 12 is provided on the fixing plate 11, and a stop block 13 fixedly connected to the upper connecting plate 1 is provided in the notch 12; the fixing plate 11 is located in the limiting space 8, and a distance is left between both ends of the fixing plate 11 and the side wall of the limiting block 7 to form a sliding space 14.

[0039] Preferably, an "H" - shaped structure is formed between the partition plate 10 and the first stiffening ribs 9, and the second-stage energy dissipation plate 6 is located at the center of the partition plate 10.

[0040] Preferably, the first stiffening ribs 9 and the second-stage energy dissipation plate 6 are fixedly connected to the lower connecting plate 2.

[0041] In the above setting, after the upper connecting plate 1, the lower connecting plate 2 are fixedly connected to the first-stage energy dissipation plate 4 and the first flange plate 5, the second-stage energy dissipation unit is pushed in from the side, and the partition plate 10 and the first stiffening ribs 9 on it closely adhere to the first-stage energy dissipation plate 4 on the first-stage energy dissipation unit, which can prevent the first-stage energy dissipation plate 4 from buckling during the working process. After the lower end of the first-stage energy dissipation plate 4 is fixedly connected to the lower connecting plate 2, the stop block 13 is fixed on the upper connecting plate 1, and its position is in the middle of the notch 12 of the fixing plate 11. The distance between the side wall of the stop block 13 and the side wall of the notch 12 is the same as the distance from the fixing plate 11 to the limiting block 7; the stop block 13 can prevent the second energy dissipation unit from bending under force.

[0042] In this embodiment, the upper connecting plate 1 and the lower connecting plate 2 are respectively connected to the building main structure. In the case of small earthquakes or wind vibrations, the upper connecting plate 1 only drives the first-stage energy dissipation unit to yield and dissipate energy. In the case of medium or large earthquakes, when a large displacement occurs and the displacement is greater than the distance between the second-stage energy dissipation unit and the limiting block 7, the upper connecting plate 1 drives the second-stage energy dissipation unit to dissipate energy. At this time, the energy dissipation units participating in shear increase, and the output damping force increases. Its hysteresis curve is as Figure 4 shown, Figure 4 [[ID=·26]]the horizontal axis in

[0043] Example 2, based on Example 1, referring to Figures 6 - 11, the driving member 3 includes a first limiting groove 15 spacedly arranged on the upper connecting plate 1, and the first limiting groove 15 is located on both sides of the first-order energy dissipation plate 4; the lower connecting plate 2 is provided with a second limiting groove 16 corresponding to the first limiting groove 15; both sides of the second-order energy dissipation plate 6 are provided with second flange plates 17, and one ends of the second-order energy dissipation plate 6 and the second flange plates 17 pass through the first limiting groove 15 and are located in the second limiting groove 16. One ends of the second-order energy dissipation plate 6 and the second flange plates 17 away from the second limiting groove 16 are provided with a pushing plate 18. The pushing plate 18 is located in the first limiting groove 15, and there is a distance between both ends of the pushing plate 18 and the inner wall of the first limiting groove 15.

[0044] Preferably, a second stiffening rib 19 is arranged between the first flange plates 5, and a third stiffening rib 20 is arranged between the second flange plates 17. The third stiffening rib 20 divides the second energy dissipation plate into two parts.

[0045] Preferably, there is a distance between the pushing plate 18 and the first limiting groove 15 in the horizontal direction.

[0046] In this embodiment, the first-order energy dissipation units are first combined and fixed with the upper connecting plate 1 and the lower connecting plate 2 respectively. Subsequently, the second-order energy dissipation unit is passed through the first limiting groove 15 on the upper connecting plate 1, and the lower side of the second-order energy dissipation unit is matched with the second limiting groove 16 on the lower connecting plate 2. After the assembly is completed, welding and assembly are carried out. With this processing method, the matching accuracy of each part is high and the product performance is reliable.

[0047] The upper connecting plate 1 and the lower connecting plate 2 are respectively connected to the building main structure. The first-order energy dissipation unit is fixedly connected to the upper connecting plate 1 and the lower connecting plate 2. In the case of small earthquakes or wind vibrations, the upper connecting plate 1 only drives the first-order energy dissipation unit to perform shear energy dissipation. In the case of medium or large earthquakes, when a large displacement occurs and the displacement is greater than the distance between the first sliding groove on the upper connecting plate 1 and the pushing plate 18, the upper connecting plate 1 drives the second-order energy dissipation unit to perform shear energy dissipation together. At this time, the units participating in shear energy dissipation increase and the output damping force increases. Its mechanical property curve is as Figure 5 shown. It can be seen from the curve that the damping force shows a second-order state. Figure 5 In the figure, the horizontal axis represents displacement and the vertical axis represents force.

[0048] Embodiment 3, based on Embodiment 1, see Figures 13 - 14 , the driving member 3 includes a pushing cavity 21 arranged inside the first-order energy dissipation plate 4; one end of the second-order energy dissipation plate 6 away from the lower connecting plate 2 is located in the pushing cavity 21, and there is a distance between the second-order energy dissipation plate 6 and the inner wall of the pushing cavity 21.

[0049] Preferably, the inside of the first-order energy dissipation plate 4 is hollow to form the pushing cavity 21, and there is a distance between the second-order energy dissipation plate 6 and the pushing front in the horizontal direction.

[0050] Preferably, the height of the second-order energy dissipation plate 6 is the same as that of the first-order energy dissipation plate 4, and the width of the second-order energy dissipation plate 6 is smaller than that of the first-order energy dissipation plate 4.

[0051] Preferably, fourth stiffening ribs 22 are provided between the first flange plates 5.

[0052] In this embodiment, the upper connecting plate 1 and the lower connecting plate 2 are connected to the building main structure. First, the second-order energy dissipation plate 6 is fixedly connected to the lower connecting plate 2, and then the first-order energy dissipation plate 4, the first flange plates 5 and the fourth stiffening ribs 22 are fixedly connected to the upper and lower connecting plates 2. In the case of minor earthquakes or wind vibrations, the upper connecting plate 1 only drives the first-order energy dissipation plate 4 to yield and dissipate energy. In the case of moderate or major earthquakes, a large displacement occurs, and the displacement is greater than the distance between the first flange plates 5 and the second-order energy dissipation plate 6, driving it to participate in energy dissipation. At this time, the number of shear energy dissipation units participating increases, and the output damping force increases.

[0053] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Multi-level energy-dissipating metal yielding dampers, characterized in that, Comprising: A connecting component, including an upper connecting plate (1) and a lower connecting plate (2) which are opposite and spaced apart; a pushing member (3) is provided on the upper connecting plate (1); A first-order energy dissipation unit, including a first-order energy dissipation plate (4) disposed between the upper connecting plate (1) and the lower connecting plate (2), and first flange plates (5) disposed on both sides of the first-order energy dissipation plate (4); the first-order energy dissipation plate (4) is located at the center of the first flange plates (5); the first flange plates (5) are fixedly connected to the upper connecting plate (1) and the lower connecting plate (2); A second-order energy dissipation unit, including a second-order energy dissipation plate (6) disposed on the lower connecting plate (2); there is a spacing between the side end of the second-order energy dissipation plate (6) away from the lower connecting plate (2) and the side wall of the pushing member (3); the upper connecting plate (1) drives the pushing member (3) to move under an external force, thereby causing the second-order energy dissipation plate (6) to shear and deform; The pushing member (3) includes limiting blocks (7) spaced apart on the upper connecting plate (1); the limiting blocks (7) are grouped in pairs and are respectively located on both sides of the first-order energy dissipation plate (4), and a limiting space (8) is formed between the limiting blocks (7) in each pair; one end of the second-order energy dissipation plate (6) away from the lower connecting plate (2) is located in the limiting space (8); there is a spacing between the side wall of the second-order energy dissipation plate (6) and the side wall of the limiting block (7); First stiffening ribs (9) are respectively provided on both sides of the second-order energy dissipation plate (6); a partition plate (10) is provided between the first stiffening ribs (9) to divide the second-order energy dissipation plate (6) into two parts, and fixing plates (11) are provided at the ends of the first stiffening ribs (9) adjacent to the upper connecting plate (1); notches (12) are provided on the fixing plates (11); a blocking block (13) fixedly connected to the upper connecting plate (1) is provided in the notches (12); the fixing plates (11) are located in the limiting space (8), and there is a spacing between both ends of the fixing plates (11) and the side walls of the limiting blocks (7) to form a sliding space (14).

2. The multi-level energy-dissipating metal yielding damper according to claim 1, wherein: The pushing member (3) includes first limiting grooves (15) spaced apart on the upper connecting plate (1); the first limiting grooves (15) are located on both sides of the first-order energy dissipation plate (4); second limiting grooves (16) corresponding to the first limiting grooves (15) are provided on the lower connecting plate (2); second flange plates (17) are provided on both sides of the second-order energy dissipation plate (6); one end of the second-order energy dissipation plate (6) and the second flange plates (17) passes through the first limiting grooves (15) and is located in the second limiting grooves (16), and a pushing plate (18) is provided at one end of the second-order energy dissipation plate (6) and the second flange plates (17) away from the second limiting grooves (16); the pushing plate (18) is located in the first limiting grooves (15), and there is a spacing between both ends of the pushing plate (18) and the inner walls of the first limiting grooves (15).

3. The multi-level energy-dissipating metal yielding type damper according to claim 2, wherein: The pushing member (3) includes a pushing cavity (21) provided inside the first-order energy dissipation plate (4); one end of the second-order energy dissipation plate (6) away from the lower connecting plate (2) is located in the pushing cavity (21), and there is a spacing between the second-order energy dissipation plate (6) and the inner wall of the pushing cavity (21).

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