Folding displacement amplification type energy dissipation and shock absorption system
By adding a connecting rod and node displacement amplification plate in the obliquely supported damper arrangement, the structure is deformed and amplified and inputted to the damper, solving the problem that traditional dampers cannot effectively consume energy under small shocks, achieving efficient energy consumption of the damper and reducing structural damage.
Patent Information
- Application Number
- CN202422396362.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The traditional damper layout cannot effectively absorb seismic energy in the case of small shocks, resulting in damage to building components and cannot ensure that the building is not damaged under small shocks.
Based on the arrangement of the obliquely supported damper, the first connecting rod and the node displacement amplification plate are added, and the deformation displacement of the amplified structure is input to the damper to increase the deformation and energy consumption of the damper.
Effectively increase the energy consumption of the damper under seismic load, reduce structural damage, and improve earthquake resistance.
Smart Images
Figure CN223164054U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of damping systems, and particularly relates to a folding displacement amplifying energy dissipation damping system. Background Art
[0002] Structural shock control is to reduce or suppress the response of a structure caused by external loads by installing energy dissipation damping devices on the structure, and it is mainly used for energy dissipation damping of buildings in the field of civil engineering. The specific implementation method is to install energy dissipation devices at some parts of a building structure with relatively large deformations or design some non-load-bearing members as energy dissipation members, and a large amount of earthquake input energy is consumed through the energy dissipation devices or energy dissipation members to achieve the purpose of shock reduction. The technology of structural shock control has currently become a very active research field, and the theoretical and practical research in the past 30 years has shown that structural shock control can effectively reduce the response and damage of a structure under the action of wind or earthquake, and effectively improve the seismic and wind resistance capabilities of the structure. In recent years, using dampers to consume earthquake energy and reduce the structural response has become one of the important means of structural shock control technology, and there have been quite a number of engineering examples worldwide. In a building structure, dampers are generally arranged between floors, and the traditional arrangement mechanisms include diagonal bracing arrangement, chevron arrangement, and cable sleeve arrangement. Since the probability of a building structure suffering from a minor earthquake is relatively high, but the currently widely used damper arrangement methods are almost in a non-operating state due to small deformations under minor earthquakes and cannot absorb earthquake energy, which may cause damage to some components in the building, thus failing to ensure the fortification goal of the building structure being undamaged under minor earthquakes. Therefore, it is necessary to develop a displacement amplification device with a simple structure and reasonable force application to effectively increase the energy dissipation of dampers under the action of external loads such as earthquakes and reduce the damage to the building itself. Summary of the Invention
[0003] In order to overcome the deficiencies of the above-mentioned prior art, the purpose of the utility model is to provide a folding displacement amplifying energy dissipation damping system. By adding a first connecting rod and a node displacement amplification plate on the basis of the commonly used diagonal bracing damper arrangement method, the structural deformation displacement is amplified and then input into the damper, increasing the deformation of the damper under the action of external loads such as earthquakes, thereby increasing the energy dissipation of the damper and reducing the damage to the structure.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0005] A folding displacement amplification energy dissipation and shock absorption system includes a first support 1 and a second support 2 diagonally arranged at the corners of the beam. The second support 2 is hinged to the middle of the node displacement amplification plate 5. The two ends of the node displacement amplification plate 5 are respectively hinged to one end of a first connecting rod 3 and a second connecting rod 4. The other end of the second connecting rod 4 is fixedly connected to one end of a damper 6, and the other end of the damper 6 is hinged to one end of the first support 1. The other end of the first support 1 is hinged to the end of the first connecting rod 3 far from the displacement amplification plate 5.
[0006] The node displacement amplification plate 5 is perpendicularly arranged with respect to the initial positions of the first connecting rod 3 and the second connecting rod 4 respectively.
[0007] The first support 1 includes a first base 1-1 adapted to the corner of the beam. A first connection hole 1-2 for hinging one end of the damper 6 and a second connection hole 1-3 for hinging one end of the first connecting rod 3 are provided on the first base 1-1.
[0008] The second support 2 includes a second base 2-1 adapted to the corner of the beam. A second base hinge point 2-2 for hinging with the node displacement amplification plate 5 is provided on the second base 2-1.
[0009] The node displacement amplification plate 5 includes a long strip-shaped connecting plate 5-4. First end holes 5-1 and second end holes 5-2 are provided at both ends of the surface of the connecting plate 5-4. One end of the first connecting rod 3 is connected to the first end hole 5-1, and one end of the second connecting rod 4 is connected to the second end hole 5-2. An intermediate hole 5-3 is arranged between the first end hole 5-1 and the second end hole 5-2. The intermediate hole 5-3 is close to the first end hole 5-1 and is hinged to the second base hinge point 2-2 of the second support 2.
[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0011] 1. Based on the original arrangement method of the diagonal bracing damper, the present utility model adds a first connecting rod 3 and a node displacement amplification plate 5 to realize the input of the structural deformation displacement into the damper after amplification, increasing the energy dissipation of the damper.
[0012] 2. By adjusting the distances between the holes at both ends and the intermediate hole of the node displacement amplification plate 5, the present utility model can flexibly adjust the displacement amplification efficiency and can flexibly adjust the displacement amplification efficiency when different displacement amplification requirements are needed.
[0013] In summary, through a simple structural form, the present utility model realizes the displacement amplification of the structure, effectively increases the energy dissipation of the damper under external loads such as earthquakes, thereby reducing the damage to the structure body. The structure is simple and reliable, and has strong practicability. Description of the Drawings
[0014] Figure 1It is a schematic structural diagram of the present utility model.
[0015] Figure 2 It is a schematic structural diagram of the node displacement amplification plate 5 of the present utility model.
[0016] Figure 3 It is a schematic structural diagram of the first support 1 of the present utility model.
[0017] Figure 4 It is a schematic structural diagram of the second support 2 of the present utility model.
[0018] Among them, 1 is the first support, 1-1 is the first base, 1-2 is the first connection hole, 1-3 is the second connection hole, 2 is the second support, 2-1 is the second base, 2-2 is the hinge point of the second base, 3 is the first connecting rod, 4 is the second connecting rod, 5 is the node displacement amplification plate, 5-1 is the first end hole, 5-2 is the second end hole, 5-3 is the middle hole, 5-4 is the connecting plate, and 6 is the damper. Specific embodiments
[0019] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0020] The present utility model provides a folding displacement amplification type energy dissipation and shock absorption system, which is composed of two supports, two connecting rods, a node displacement amplification plate 5 and a damper 6.
[0021] Such as Figure 1 、 Figure 2As shown in the figure, the first support 1 is fixed at the corner of the lower beam. The first support 1 includes a first base 1-1 adapted to the beam corner. The second connection hole 1-3 opened on the first base 1-1 is hinged to one end of the first connecting rod 3. The first connection hole 1-2 opened on the first base 1-1 is hinged to one end of the damper 6. The first support 1 serves as the fixed end of the first connecting rod 3 and the damper 6. The second support 2 is fixed at the diagonal corner of the upper beam opposite to the first support 1 and is used to fix the node displacement amplification plate 5. The second support 2 includes a second base 2-1 adapted to the beam corner. A second base hinge point 2-2 is opened on the second base 2-1. The node displacement amplification plate 5 includes a long connecting plate 5-4. First end holes 5-1 and second end holes 5-2 are opened at both ends of the surface of the connecting plate 5-4. The middle hole 5-3 of the node displacement amplification plate 5 is hinged to the second base hinge point 2-2 of the second support 2. The node displacement amplification plate 5 can rotate freely around the hinge point. One end of the second connecting rod 4 is fixedly connected to the other end of the damper 6. The other end of the second connecting rod 4 is hinged to the second end hole 5-2 of the node displacement amplification plate 5 and is used to fix the damper 6 and transmit displacement. The other end of the first connecting rod 3 is hinged to the first end hole 5-1 of the node displacement amplification plate 5 and is used to limit the displacement of one end of the node displacement amplification plate 5. After the structure undergoes lateral deformation, the second support 2 drives the node displacement amplification plate 5 to rotate, and the lateral displacement of the structure is amplified and then transmitted to the second connecting rod 4.
[0022] As Figure 3 shown, two hinge points are provided on the first support 1, which are respectively connected to one ends of the first connecting rod 3 and the damper 6; As Figure 4 shown, one hinge point is provided on the second support 2 and is connected to the middle hole of the node displacement amplification plate 5.
[0023] The utility model adjusts the distance between the end holes and the middle hole of the node displacement amplification plate 5 to adjust the displacement amplification efficiency.
[0024] The working principle of the utility model is as follows:
[0025] When the structure is subjected to external loads and the frame undergoes lateral deformation, it is first assumed that the node displacement amplification plate 5 is fixed. The frame drives the second connecting rod 4 to produce a certain displacement, and the damper 6 starts to work, dissipating part of the energy. At this time, the energy dissipated by the damper 6 is equal to that when the dampers are arranged diagonally. Since the structural deformation is small under minor earthquakes, the damper 6 often remains in an inoperative state. Therefore, to increase the energy dissipation of the damper 6, the node displacement amplification plate 5 is used to amplify the inter-story displacement. When the frame undergoes lateral deformation, the first connecting rod 3 drives the node displacement amplification plate 5 to rotate, and the amplified lateral displacement is transmitted to the damper 6 through the second connecting rod 4, thereby increasing the deformation of the damper 6 and increasing the energy dissipation. It should be noted that to reduce the displacement loss caused by the excessive or too small angle between the first connecting rod 3 and the second connecting rod 4 and the node displacement amplification plate 5, the initial position of the node displacement amplification plate 5 should be perpendicular to the first connecting rod 3 and the second connecting rod 4.
[0026] Displacement amplification efficiency:
[0027] Assume that the storey height of the frame is h, the span is l, the inter-story displacement of the structure is μ, and the ratio of the length of the displacement output end (connected to the second connecting rod 4) to the length of the displacement input end (connected to the first connecting rod 3) of the node displacement amplification plate 5 is k. Then the calculation formula for the displacement amplification coefficient f (the ratio of the input displacement of the damper 6 to the inter-story displacement) is as follows:
[0028]
[0029] The smaller the ratio of the storey height h to the span l of the frame, the larger the k value, the larger the displacement amplification coefficient, and the more obvious the shock absorption effect. Compared with the diagonal bracing arrangement of the damper 6, the shock absorption efficiency of this folded displacement amplification type energy dissipation and shock absorption system is increased by k times.
Claims
1. A folding displacement amplification energy dissipation and shock absorption system, characterized in that, It includes a first support (1) and a second support (2) diagonally arranged at the corners of the beam. The second support (2) is hinged to the middle of the node displacement amplification plate (5). The two ends of the node displacement amplification plate (5) are respectively hinged to one end of a first connecting rod (3) and a second connecting rod (4). The other end of the second connecting rod (4) is fixedly connected to one end of a damper (6). The other end of the damper (6) is hinged to one end of the first support (1). The other end of the first support (1) is hinged to the end of the first connecting rod (3) far from the displacement amplification plate (5).
2. The foldable displacement amplification type energy dissipation and shock absorption system according to claim 1, wherein The node displacement amplification plate (5) is perpendicularly arranged with respect to the initial positions of the first connecting rod (3) and the second connecting rod (4) respectively.
3. A folding displacement amplification type energy dissipation and shock absorption system according to claim 1 or 2, characterized in that, The first support (1) includes a first base (1-1) adapted to the corner of the beam. A first connection hole (1-2) for hinging one end of the damper (6) and a second connection hole (1-3) for hinging one end of the first connecting rod (3) are formed on the first base (1-1).
4. A foldable displacement amplification type energy dissipation and shock absorption system according to claim 1 or 2, characterized in that, The second support (2) includes a second base (2-1) adapted to the corner of the beam. A second base hinge point (2-2) for hinging the node displacement amplification plate (5) is formed on the second base (2-1).
5. A folding displacement amplification type energy dissipation and shock absorption system according to claim 1 or 2, characterized in that, The node displacement amplification plate (5) includes a long strip-shaped connecting plate (5-4). First end holes (5-1) and second end holes (5-2) are formed at both ends of the surface of the connecting plate (5-4). One end of the first connecting rod (3) is connected to the first end hole (5-1), and one end of the second connecting rod (4) is connected to the second end hole (5-2). An intermediate hole (5-3) is arranged between the first end hole (5-1) and the second end hole (5-2). The intermediate hole (5-3) is close to the first end hole (5-1) and is hinged to the second base hinge point (2-2) of the second support (2).