Wall type composite damper

Abstract

The utility model relates to a wall type composite damper which comprises a first connecting plate and a second connecting plate, a friction damper is installed in the middle between the first connecting plate and the second connecting plate, a soft steel damper is installed on the side face between the first connecting plate and the second connecting plate, and one end of the soft steel damper is arranged in a hole groove formed in the surface of the first connecting plate. The composite damper is simple in structure, and energy consumption requirements and rigidity requirements in different environments can be met by adjusting energy consumption and rigidity of the friction damper and the soft-rigid damper.

Description

Technical Field

[0001] The utility model relates to the field of dampers, in particular to a wall type composite damper. Background Art

[0002] Wall dampers are vibration reduction devices installed on building structures. Their main function is to reduce the vibration amplitude of buildings under external forces (such as earthquakes, wind loads, etc.) through the damping effect, thereby achieving the effect of vibration reduction and noise reduction. In areas with frequent earthquakes, wall dampers can play a significant role in vibration reduction, reducing damage to buildings and casualties. At the same time, in projects such as high-rise buildings and large bridges, wall dampers can also effectively reduce the impact of external forces such as wind loads and earthquakes on the structure, and improve the safety and stability of the building.

[0003] However, in the process of use, the traditional single friction damper under large displacement excitation conditions, due to the limitation of the performance of the friction interface material and the saturation effect of the friction mechanism, leads to a significant lack of energy dissipation capacity, and cannot effectively attenuate the large amplitude vibration of the structure. At the same time, while providing the necessary damping force, this type of damper is often accompanied by insufficient stiffness characteristics, that is, its dynamic stiffness is difficult to flexibly adjust with the structural requirements, which may affect the control effect and overall stability of the structure under low-frequency vibration. On the other hand, for a single soft steel damper, its main problem is that the working displacement range is relatively limited. As an energy-absorbing material, although soft steel has good hysteresis characteristics and energy absorption capacity, under extreme loads or long-term cyclic loading conditions, its working displacement is easy to reach the plastic flow stage after the material yields, resulting in limited effective working stroke, making it difficult to meet the structural shock absorption requirements of larger displacement requirements. In addition, soft steel dampers are also prone to fatigue performance degradation under frequent cyclic loading, that is, as the number of loading times increases, their energy dissipation capacity and stability gradually decrease, which is unfavorable for structural systems that need to maintain high-efficiency shock absorption performance for a long time. For this reason, it is necessary to design a new technical solution to solve it. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, meet the actual needs, and provide a wall-type composite damper to solve the problem that the current traditional single friction damper has a significantly insufficient energy dissipation capacity under large displacement excitation conditions due to the limitations of the friction interface material performance and the saturation effect of the friction mechanism, and cannot effectively attenuate the large-amplitude vibration of the structure. At the same time, while providing the necessary damping force, this type of damper is often accompanied by insufficient stiffness characteristics, that is, its dynamic stiffness is difficult to flexibly adjust according to the structural requirements, which may affect the control effect and overall stability of the structure under low-frequency vibration. On the other hand, for a single soft steel damper, its main problem is that the working displacement range is relatively limited. As an energy-absorbing material, although soft steel has good hysteresis characteristics and energy absorption capacity, under extreme loads or long-term cyclic loading conditions, its working displacement is easy to reach the plastic flow stage after the material yields, resulting in a limited effective working stroke, which is difficult to meet the structural shock absorption requirements of larger displacement requirements. In addition, mild steel dampers are prone to fatigue performance degradation under frequent cyclic loading, that is, as the number of loading times increases, their energy dissipation capacity and stability gradually decrease, which is an unfavorable technical problem for structural systems that need to maintain high-efficiency shock-absorbing performance for a long time.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a wall-type composite damper, including a first connecting plate and a second connecting plate, a friction damper is installed in the middle between the first connecting plate and the second connecting plate, and a soft steel damper is installed on the side between the first connecting plate and the second connecting plate, and one end of the soft steel damper is placed in a hole groove opened on the surface of the first connecting plate.

[0006] Preferably, the friction damper comprises a friction steel plate, an outer plate, connecting bolts and a disc spring.

[0007] Preferably, a first connecting plate is installed on the top of the friction steel plate, outer plates are provided at both front and rear ends of the friction steel plate, a second connecting plate is installed on the bottom of the outer plate, a plurality of connecting bolts are installed on the surface of the outer plate, a disc spring is installed at one end of the plurality of connecting bolts, the connecting bolts pass through the disc spring and the friction steel plate, and the friction steel plate is installed between the two outer plates.

[0008] Preferably, there is one mild steel damper installed on one side between the first connecting plate and the second connecting plate.

[0009] Preferably, there are two mild steel dampers, which are respectively installed on both sides between the first connecting plate and the second connecting plate.

[0010] Preferably, the mild steel damper comprises an energy dissipation plate and side panels, and the side panels are installed on both sides of the energy dissipation plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model solves the problems of insufficient energy dissipation capacity and insufficient stiffness of a single friction damper under large displacements.

[0013] 2. The utility model solves the problems of relatively small working displacement and poor fatigue performance of a single mild steel damper.

[0014] 2. The composite damper of the utility model has a simple structure, and can meet the energy dissipation requirements and stiffness requirements under different environments by adjusting the energy dissipation and stiffness of the friction damper and the mild steel damper parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the first embodiment of the utility model;

[0016] Figure 2 is a front view structure schematic diagram of the first embodiment of the utility model;

[0017] Figure 3 is a schematic diagram of the overall structure of the second embodiment of the utility model;

[0018] Figure 4 is a front view structure schematic diagram of the second embodiment of the utility model.

[0019] In the figure: 1, the first connecting plate; 2, the friction steel plate; 3, the connecting bolt; 4, the outer plate; 5, the energy dissipation plate; 6, the side panel; 7, the second connecting plate; 8, the disc spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following further describes the utility model with reference to the drawings and embodiments:

[0021] Embodiment 1

[0022] A wall-type composite damper, see Figures 1 to 2 , which includes a first connecting plate 1 and a second connecting plate 7. A friction damper is installed in the middle between the first connecting plate 1 and the second connecting plate 7, and a mild steel damper is installed on the side between the first connecting plate 1 and the second connecting plate 7. One end of the mild steel damper is placed in a hole groove opened on the surface of the first connecting plate 1.

[0023] Specifically, see Figures 1 to 2 , the friction damper includes a friction steel plate 2, an outer plate 4, a connecting bolt 3 and a disc spring 8.

[0024] Furthermore, see Figures 1 to 2, a first connecting plate 1 is installed on the top of the friction steel plate 2. Outer plates 4 are arranged at both the front and rear ends of the friction steel plate 2. A second connecting plate 7 is installed at the bottom of the outer plate 4. A plurality of connecting bolts 3 are installed on the surface of the outer plate 4. A disc spring 8 is installed at one end of the plurality of connecting bolts 3. The connecting bolts 3 pass through the disc spring 8 and the friction steel plate 2 to install the friction steel plate 2 between the two outer plates 4.

[0025] It should be noted that, referring to Figures 1 to 2 , there is one soft steel damper, which is installed on one side between the first connecting plate 1 and the second connecting plate 7.

[0026] It should be noted that, referring to Figures 1 to 2 , the soft steel damper includes an energy dissipation plate 5 and side plates 6. Side plates 6 are installed on both sides of the energy dissipation plate 5.

[0027] Embodiment 2

[0028] Referring to Figure 3 、 Figure 4 , on the basis of Embodiment 1, the present utility model provides a technical solution: there are two soft steel dampers, which are respectively installed on both sides between the first connecting plate 1 and the second connecting plate 7. The soft steel damper includes an energy dissipation plate 5 and side plates 6. Side plates 6 are installed on both sides of the energy dissipation plate 5.

[0029] When using the wall - type composite damper, the friction damper works first. After reaching the set displacement, the connecting plate drives the soft steel damper to work together. This composite damper can achieve energy dissipation in stages and further increase the energy dissipation capacity and additional stiffness under larger displacements.

[0030] In addition, the components designed by the present utility model are all common standard parts or parts known to those skilled in the art. Their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods. Those skilled in the art can fully implement them without further elaboration. The content protected by the present utility model does not involve improvements to the internal structure and method.

[0031] The embodiments disclosed in the present utility model are the preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model according to the above - mentioned embodiments and make different extensions and changes. As long as they do not depart from the spirit of the present utility model, they are within the protection scope of the present utility model.

Claims

1. A wall-type composite damper, comprising a first connecting plate (1) and a second connecting plate (7), characterized in that, A friction damper is installed in the middle between the first connecting plate (1) and the second connecting plate (7), and a mild steel damper is installed on the side between the first connecting plate (1) and the second connecting plate (7). One end of the mild steel damper is placed in a hole groove formed on the surface of the first connecting plate (1).

2. The wall-type composite damper according to claim 1, characterized in that, The friction damper includes a friction steel plate (2), an outer plate (4), connecting bolts (3), and a disc spring (8).

3. The wall-type composite damper according to claim 2, characterized in that, The first connecting plate (1) is installed on the top of the friction steel plate (2). Outer plates (4) are arranged at both the front and rear ends of the friction steel plate (2). The second connecting plate (7) is installed at the bottom of the outer plate (4). A plurality of connecting bolts (3) are installed on the surface of the outer plate (4). One end of each of the plurality of connecting bolts (3) is installed with a disc spring (8). The connecting bolts (3) pass through the disc spring (8) and the friction steel plate (2) to install the friction steel plate (2) between the two outer plates (4).

4. The wall-type composite damper according to claim 1, characterized in that, There is one mild steel damper, which is installed on one side between the first connecting plate (1) and the second connecting plate (7).

5. The wall-type composite damper according to claim 1, characterized in that, There are two mild steel dampers, which are respectively installed on both sides between the first connecting plate (1) and the second connecting plate (7).

6. The wall-type composite damper according to claim 1, wherein The mild steel damper includes an energy dissipation plate (5) and side panels (6). Side panels (6) are installed on both sides of the energy dissipation plate (5).

Images