Bionic shock isolation device capable of isolating torsional effect

Abstract

The invention belongs to the technical field of shock isolation supports, and particularly relates to a bionic shock isolation device capable of isolating the torsion effect, the bionic shock isolation device comprises a rubber supporting assembly and a cover plate, the rubber supporting assembly comprises a plurality of rubber layers and a steel plate layer, and an anti-torsion assembly is arranged at the top end of the rubber supporting assembly; a plurality of sets of bionic supporting assemblies are installed between the anti-torsion assembly and the side wall of the column pier. Each bionic supporting assembly comprises a first supporting part, a second supporting part and an elastic piece, when the rubber supporting assembly transversely displaces or is pulled, the first supporting part or / and the second supporting part changes the inclination angle, and the elastic piece enables the first supporting part and the second supporting part to recover to the initial inclination angle; the device combines the advantages of a rubber shock insulation support and a friction support, so that the device can resist horizontal displacement generated by shock and has good drawing resistance and torsion resistance; and the multiple sets of bionic supporting assemblies are connected with the column pier for bionic simulation, so that the device has good stability and integrity.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of isolation bearing, in particular to a bionic isolation device capable of isolating torsional effect. BACKGROUND

[0002] Isolation technology can isolate the effect of earthquake and effectively reduce the response of structure under earthquake. Commonly used isolation devices in isolation technology include friction isolation bearing and rubber isolation bearing. The rubber isolation bearing is composed of multiple rubber layers and steel plate layers stacked alternately. The rubber layer provides horizontal deformation, and the steel plate layer mainly provides vertical stiffness to support the upper structure. The middle part of the friction isolation bearing is a friction pendulum with arc surfaces at both ends. The friction pendulum can perform friction and reciprocating swing through the arc surface to respond to the vibration caused by earthquake.

[0003] In actual engineering, there are structures arranged irregularly horizontally. The structure has obvious torsion and tension under the action of earthquake. The torsion can reduce the performance of the rubber isolation bearing and easily damage the rubber isolation bearing in the earthquake. Although the friction isolation bearing has good anti-torsion effect, its anti-tension capacity is poor and the horizontal displacement is difficult to control. Therefore, there is a lack of an isolation bearing capable of resisting the horizontal displacement caused by earthquake and having good anti-tension and anti-torsion performance. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the purpose of the present application is to provide a bionic isolation device capable of isolating torsional effect. The bionic isolation device can resist the horizontal displacement caused by earthquake and has good anti-tension and anti-torsion performance through cooperation of the rubber support assembly, the anti-torsion assembly and the bionic support assembly.

[0005] The technical solution adopted by the present application is as follows: A bionic isolation device capable of isolating torsional effect, comprising a rubber support assembly mounted on a column pier and a cover plate for supporting a building. The rubber support assembly comprises multiple rubber layers and steel plate layers stacked alternately. The top end of the rubber support assembly is provided with an anti-torsion assembly rotatably connected with the cover plate. Multiple bionic support assemblies are installed circumferentially between the anti-torsion assembly and the side wall of the column pier. Each bionic support assembly comprises a first support part, a second support part and an elastic member. One end of the first support part is mounted on the anti-torsion assembly, one end of the second support part is mounted on the column pier, and the other ends of the first support part and the second support part are hingedly connected to each other. When the rubber support assembly is subjected to horizontal displacement or tension, the first support part or / and the second support part changes the inclination angle. The elastic member keeps the first support part and the second support part at the initial inclination angle under no external force.

[0006] Working principle: when an earthquake occurs, the rubber layer produces horizontal deformation to isolate the horizontal direction of the earthquake, and the anti-torsion component can rotate relative to the cover plate to isolate the torsion effect of the earthquake; the bionic support component is hinged through the first support part and the second support part, and is reset through the elastic element; when the entire device is subjected to pulling or horizontal displacement, the included angle between the first support part and the second support part changes, and the elastic element is combined to resist the action; the anti-torsion component and the first support component simulate the knee joint, the anti-torsion component simulates the meniscus part, the first support part simulates the ligament part of the leg, and the second support part simulates the spider leg part; a plurality of groups are arranged around the rubber support component, the entire device is bionic to the spider, which is helpful to the stability and integrity of the device; and the bionic support component forms a whole between the rubber support component and the column pier (which can also be a structural column), which can replace the traditional bolt installation mode between the rubber support and the column pier, or be combined with the bolt installation to further improve the stability and integrity of the device.

[0007] Compared with the prior art, the beneficial effects of the present application are: 1. By cooperating the rubber support component, the anti-torsion component and the bionic support component, the advantages of the rubber seismic isolation support and the friction support are combined, so that the device can resist the horizontal displacement caused by the earthquake, and also has good anti-pulling and anti-torsion performance.

[0008] 2. The bionic support component is connected with the column pier to simulate the bionic, so that the device has good stability and integrity.

[0009] As a preferred embodiment of the present application, the anti-torsion component includes a rotating plate, the rotating plate is located at the top of the alternately stacked rubber layer and steel plate layer, the anti-torsion component includes a cover plate, the cover plate is rotatably installed on the rotating plate, and a containing cavity is arranged between the cover plate and the rotating plate, and a plurality of balls are filled in the containing cavity.

[0010] Beneficial effects: 1. By rolling friction instead of surface friction, the total frictional resistance is smaller, so that the acceleration reduction rate is higher and the seismic isolation effect is better.

[0011] 2. If the surface friction method is used, the smoothness of the contact surface is required to be high, once there is a local protrusion, local stress concentration will be caused, and the contact surface will be deformed during an earthquake, and the deformed part will have a larger frictional resistance during torsion. By using the ball method, a plurality of point supports are formed, and even if there is a local protrusion, the influence during torsion is still small.

[0012] As a preferred embodiment of the present application, a plurality of concentric ring bodies are arranged on the rotating plate, annular channels are formed between adjacent ring bodies, and a plurality of balls are installed in the corresponding annular channels. Beneficial effects: through the above setting, the ring body gradually expands from inside to outside, so that the balls are uniformly distributed on the rotating plate, and the load of each contact point is uniform.

[0013] As a preferred embodiment of the present application, the first support part and the second support part adopt a connecting rod.

[0014] Beneficial effects: by adopting a connecting rod for hinging, the connecting rod can not only adapt to the deformation caused by pulling or horizontal displacement by changing its own included angle, but also support between the rubber support assembly and the column pier, ensuring the stability and integrity of the device.

[0015] As a preferred embodiment of the present application, the elastic member is a compression spring, and the two ends of the compression spring are respectively connected with the first support part and the second support part.

[0016] Beneficial effects: the included angle between the first support part and the second support part can be controlled by the compression spring, which has an auxiliary reset effect.

[0017] As a preferred embodiment of the present application, the elastic member is a torsion spring, and the torsion spring is arranged at the connecting position of the first support part or the second support part.

[0018] Beneficial effects: the compression spring needs to be arranged between the first support part and the second support part, although the installation method is simple, but when the included angle of the first support part and the second support part changes greatly, the spring may be bent greatly, the stress direction changes, which leads to difficulty in resetting, and the torsion spring can avoid this problem.

[0019] As a preferred embodiment of the present application, the anti-torsion assembly comprises a rotating plate, the rotating plate is transversely rotatably installed with a lug, the lug is hinged with the first support part, the column pier is transversely rotatably installed with a rotating shaft, and the end of the rotating shaft is hinged with the second support part.

[0020] Beneficial effects: when the rubber layer has displacement in the horizontal direction, such as transverse displacement, the first support part in the non-transverse direction will be subjected to a deflection direction force, therefore, the lug and the rotating shaft are arranged to play the role of a universal joint, when torsion occurs, the rotating shaft rotates to adapt to the torsion, avoiding the disconnection of the connecting rod.

[0021] As a preferred embodiment of the present application, the first support part adopts a cable, the second support part adopts a sliding block, the sidewall of the column pier is transversely provided with a sliding rail, the sliding block is slidingly installed in the sliding rail, the cable is connected with the rubber support assembly and the sliding block and is taut, and the elastic member is transversely arranged between the sliding rail and the sliding block, so that the cable is always at an initial inclination angle under no external force.

[0022] Beneficial effect: due to the characteristics of the cable, it can adapt to the deflection in all directions after the horizontal displacement of the rubber layer, combined with the elastic element, so that the cable in the stretching direction will be in a relaxed state, and the cable in the opposite direction will be tightened, and the elastic element will be compressed, the compressed elastic element forces each cable to return to its original position, not only can resist pulling, but also has anti-torsion effect. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a cross-sectional view of the bionic seismic isolation device of the present application which can isolate the torsion effect; Figure 2 is a structural schematic view of the anti-torsion assembly in the bionic seismic isolation device of the present application which can isolate the torsion effect; Figure 3 is a cross-sectional view of the bionic seismic isolation device of the present application which can isolate the torsion effect; Figure 4 is a cross-sectional view of the bionic seismic isolation device of the present application which can isolate the torsion effect; Figure 5 is a cross-sectional view of the bionic seismic isolation device of the present application which can isolate the torsion effect.

[0024] The reference signs include: column pier 1, flange plate 11, rubber layer 21, steel plate layer 22, rotating plate 31, ball 32, ring body 33, first support part 41, second support part 42, compression spring 43, lug 44, shaft 45, cover plate 5, cable 61, sliding block 62, sliding rail 63, spring 64. DETAILED DESCRIPTION

[0025] The typical embodiments embodying the features and advantages of the present application will be described in detail in the following description. It should be understood that the present application can have various changes on different embodiments, which all do not deviate from the scope of the present application, and the description and drawings in essence are used as illustration, not to limit the present application.

[0026] In the description of the present application, the terms "first", "second" and the like are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the structures referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation of the present application.

[0027] Embodiment I: Referring to Figure 1 , the present embodiment discloses a bionic seismic isolation device which can isolate the torsion effect, installed on the column pier 1, including a rubber support assembly, an anti-torsion assembly, a plurality of bionic support assemblies, and a cover plate 5.

[0028] Among them, referring to Figure 1As shown, the rubber support assembly comprises a plurality of rubber layers 21 and steel plate layers 22 stacked alternately, and the rubber layer 21 generates horizontal deformation to isolate the horizontal effects of earthquakes.

[0029] Among them, see Figure 1 and Figure 2 As shown, the anti-torsion component includes a rotating plate 31, which is located at the top of the alternately stacked rubber layer 21 and steel plate layer 22. The anti-torsion component includes a cover plate 5, which is rotatably installed on the rotating plate 31, and a receiving cavity is provided between the cover plate 5 and the rotating plate 31. The rotating plate 31 is provided with a plurality of concentric ring bodies 33 in the receiving cavity, and annular channels are formed between adjacent ring bodies 33. A plurality of balls 32 are installed in the corresponding annular channels; rolling friction replaces surface friction, and the total friction resistance becomes smaller, so that the acceleration reduction rate is higher and the seismic isolation effect is better.

[0030] Among them, see Figure 1 and Figure 3 As shown, each of the bionic support components includes a first support portion 41, a second support portion 42 and an elastic member. The first support portion 41 and the second support portion 42 are connected by a connecting rod. The anti-torsion component includes a rotating plate 31, and the rotating plate 31 is laterally rotated and equipped with a support ear 44 (such as Figure 3 As shown, there is a notch on the rotating plate 31, and a through hole is opened in the notch for rotating the rotating pin to fix the ear to the rotating pin). The ear 44 is hinged to the first support part 41. The side wall of the pier 1 is fixed with a flange 11 by bolts. The middle of the flange 11 has a rotating hole, through which a rotating shaft 45 is installed for horizontal rotation (see Figure 4 ), the end of the rotating shaft 45 is hinged to the second support part 42, and the elastic member is a compression spring 43, and the two ends of the compression spring 43 are respectively connected to the first support part 41 and the second support part 42; when the rubber layer 21 is displaced in the horizontal direction, such as lateral displacement, the first support part 41 in the non-lateral direction will be subjected to a force in the deflection direction. Therefore, by providing the support ear 44 and the rotating shaft 45, a universal joint is played. When torsion occurs, the rotating shaft 45 rotates to adapt to the torsion to avoid the connecting rod from breaking. When the entire device is pulled or horizontally displaced, the angle between the first support part 41 and the second support part 42 changes, and the elastic member plays a resistance role.

[0031] The working principle of this embodiment is as follows: When an earthquake occurs, the rubber layer 21 produces horizontal deformation to isolate the horizontal direction of the earthquake, and when the rubber support assembly is subjected to a torsional action, it will rotate within a certain angle, driving the rotating plate 31 to rotate relative to the cover plate 5, and the ball 32 converts the surface friction between the two into point friction, thereby better isolating the torsional action of the earthquake; the bionic support assembly is hinged through the first support part 41 and the second support part 42, and is reset through the elastic element, when the entire device is subjected to pulling or horizontal displacement, the included angle between the first support part 41 and the second support part 42 changes, combined with the elastic element to resist, the torsion-resistant assembly simulates the knee joint with the first support assembly, the torsion-resistant assembly simulates the meniscus part, the first support part 41 simulates the ligament part of the leg, and the second support part 42 simulates the spider leg part, multiple groups are arranged around the rubber support assembly, the entire device is bionic to the spider, which is helpful to the stability and integrity of the device; and the bionic support assembly forms a whole between the rubber support assembly and the column pier 1, which can replace the traditional bolt installation mode between the rubber support and the column pier 1, or be combined with the bolt installation to further improve the stability and integrity of the device.

[0032] Embodiment two: Referring to Figure 5 On the basis of embodiment one, the bionic seismic isolation device capable of isolating torsional effect is disclosed, the bionic support assembly is replaced, the first support part 41 in the embodiment is a cable 61, the second support part 42 is a sliding block 62, the elastic element adopts a spring 64, the column pier 1 side wall is transversely provided with a sliding rail 63, the sliding block 62 is slidingly installed in the sliding rail 63, the cable 61 is connected with the rubber support assembly and the sliding block 62 and is taut, and the elastic element is transversely arranged between the sliding rail 63 and the sliding block 62, so that the cable 61 is always at an initial inclination angle under no external force.

[0033] In the embodiment, the cable 61 is fixed on the rubber support assembly, due to the characteristics of the cable 61, the deflection in various directions after the horizontal displacement of the rubber layer 21 can be adapted, combined with the elastic element, so that the cable in the stretching offset direction is in a relaxed state, and the cable 61 in the opposite direction is taut, and the elastic element is compressed, the compressed elastic element forces each cable 61 to return to the original position, which not only can resist pulling, but also has an anti-torsion effect, compared with embodiment one, even if the rubber layer 21 is twisted under the action of a larger external force, the cable 61 can also play an auxiliary torsion reset effect.

[0034] In other embodiments, the sliding rail 63 and the sliding block 62 can also be vertically arranged on the side of the column pier, which can reduce the overall floor area.

[0035] The above embodiments are only the preferred embodiments of the present application, and cannot be used to limit the protection scope of the present application, and any non-essential changes and replacements made by those skilled in the art on the basis of the present application shall fall within the protection scope of the present application.

Claims

1. A biomimetic seismic isolation device capable of isolating torsional effects, comprising a rubber support assembly mounted on a pier and a cover plate for supporting a building, wherein the rubber support assembly comprises a plurality of alternately stacked rubber layers and steel plate layers, and is characterized in that: The top end of the rubber support assembly is provided with an anti-torsion assembly rotatably connected to the cover plate, and multiple groups of bionic support assemblies are circumferentially installed between the anti-torsion assembly and the side wall of the pier; Each of the bionic support components includes a first support part, a second support part and an elastic member. One end of the first support part is installed on the anti-torsion component, one end of the second support part is installed on the pier, and the other ends of the first support part and the second support part are hinged to each other. When the rubber support component undergoes lateral displacement or pulling, the first support part and / or the second support part changes the inclination angle, and the elastic member ensures that the first support part and the second support part are always at the initial inclination angle in the absence of external force.

2. The bionic seismic isolation device capable of isolating torsional effects according to claim 1, characterized in that: The anti-torsion component includes a rotating plate, which is located at the top of the alternately stacked rubber layers and steel plate layers. The anti-torsion component includes a cover plate, which is rotatably mounted on the rotating plate, and a receiving cavity is provided between the cover plate and the rotating plate, and the receiving cavity is filled with a plurality of balls.

3. The bionic seismic isolation device capable of isolating torsional effects according to claim 2, characterized in that: The rotating plate is provided with a plurality of concentric ring bodies, annular channels are formed between adjacent ring bodies, and a plurality of balls are installed in the corresponding annular channels.

4. The bionic seismic isolation device capable of isolating torsional effects according to claim 1, characterized in that: The first supporting portion and the second supporting portion are connected by connecting rods.

5. The bionic seismic isolation device capable of isolating torsional effects according to claim 4, characterized in that: The elastic member is a compression spring, and both ends of the compression spring are connected to the first support portion and the second support portion respectively.

6. The bionic seismic isolation device capable of isolating torsional effects according to claim 4, characterized in that: The elastic member is a torsion spring, and the torsion spring is arranged at the connection between the first support part or the second support part.

7. The bionic seismic isolation device capable of isolating torsional effects according to claim 4, characterized in that: The anti-torsion component includes a rotating plate, the rotating plate is installed with a support ear for transverse rotation, the support ear is hinged to the first support part, the pier is installed with a rotating shaft for transverse rotation, and the end of the rotating shaft is hinged to the second support part.

8. The bionic seismic isolation device capable of isolating torsional effects according to claim 1, characterized in that: The first supporting part adopts a cable, the second supporting part adopts a slider, the side wall of the pier is provided with a slide rail horizontally, the slider is slidably installed in the slide rail, the cable is respectively connected to the rubber support assembly and the slider and tightened, and the elastic part is horizontally arranged between the slide rail and the slider, so that the cable is always at the initial tilt angle when there is no external force.

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