Novel assembled building structure shock-absorbing support

Abstract

The utility model discloses a novel fabricated building structure shock absorption support relates to fabricated building technical field, concretely is a novel fabricated building structure shock absorption support, including support piece, two upper and lower symmetry set up connecting parts, and the upper and lower end of support piece is respectively with two connecting parts swing joint, the lateral wall of support piece is equipped with a plurality of steel sheets, a plurality of rubber layers, and a plurality of steel sheets and a plurality of rubber layers longitudinal alternate distribution, through the sliding fit of sliding block and sliding groove, the constraint of lead core is provided, and the horizontal direction's acting force is digested, utilizes the self -locking structure of spacing ring and support ring, and the horizontal direction's acting force and vertical force are shared, avoid rubber layer and lead core deformation, prevent support dislocation, ensure that support horizontal isolation advantage's simultaneously, promote its vertical shock absorption capacity.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, specifically a novel prefabricated building structure vibration damping support. Background Technology

[0002] In the construction industry, prefabricated buildings are widely used due to their advantages such as high construction efficiency, energy saving, and environmental protection. However, the seismic performance of prefabricated structures is highly dependent on the joint connections. Traditional connection methods are prone to brittle failure under seismic loads, thus requiring high-performance damping bearings to improve the overall seismic resistance of the structure. Currently, lead-core rubber seismic isolation bearings are widely used due to their simple construction and significant horizontal seismic isolation effect. They reduce horizontal seismic forces by embedding a lead core in a laminated rubber bearing and utilizing the shear deformation of the rubber and the plastic energy dissipation of the lead core. However, existing technologies, such as the prefabricated building structure damping bearing disclosed in patent number 202310358039.X, while improving the damping effect to a certain extent, may cause serious damage to the superstructure due to excessive vertical acceleration in near-fault earthquakes or when the vertical seismic component is large. When the structure is subjected to vertical seismic waves, the bearing may bear tensile forces, leading to tearing of the rubber layer, debonding of the steel plate from the rubber, or even complete failure of the bearing, seriously affecting its durability and seismic performance.

[0003] Therefore, there is an urgent need for a new type of prefabricated building structure vibration damping bearing that can improve its vertical vibration reduction capacity and enhance its tensile strength while ensuring the horizontal seismic isolation advantage of the bearing, so as to solve the above-mentioned problems existing in the existing technology. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a novel prefabricated building structure vibration damping support, which solves the problems mentioned in the background art.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a novel prefabricated building structure vibration damping support, comprising a support member and two symmetrically arranged connecting components, the upper and lower ends of the support member being movably connected to the two connecting components respectively; multiple steel plates and multiple rubber layers are fitted onto the outer wall of the support member, the steel plates and rubber layers being longitudinally alternating; the connecting components include a connecting plate and a sealing plate, the connecting plate and the sealing plate being fixedly installed; the support member includes a lead core and two sliding blocks, the two sliding blocks being fixedly installed at the upper and lower ends of the lead core respectively, the sliding blocks being slidably connected to the sealing plate; a rubber protective cylinder is fixedly installed between the two connecting plates, a support ring is fixedly connected to the inner wall of the rubber protective cylinder, the upper and lower ends of the support ring being hooked and connected to the sealing plates in the two connecting components respectively.

[0006] Optionally, the connecting component further includes a limiting ring with a cross-section in the shape of a U, the limiting ring being fitted onto the outer wall of the sealing plate and the two being fixedly connected; the upper and lower ends of the support ring are provided with annular limiting grooves, and the upper or lower part of the limiting ring is located in the limiting groove of the support ring.

[0007] Optionally, the inner wall of the support ring is provided with multiple connecting grooves, and multiple rubber blocks are fixedly connected to the outer wall of the rubber layer, with the rubber blocks embedded in the connecting grooves of the support ring.

[0008] Optionally, the rubber block and the rubber layer are integrally molded structures.

[0009] Optionally, the sealing plate is provided with a sliding groove, the sliding block is located in the sliding groove, and the contact surface between the sliding block and the sliding groove is spherical.

[0010] Optionally, the surface of the steel plate is fixedly connected with a plurality of evenly distributed protrusions, and the surface of the rubber layer is provided with grooves that engage with the protrusions.

[0011] Optionally, the protrusion is hemispherical.

[0012] (III) Beneficial Effects This utility model provides a novel prefabricated building structure vibration damping support, which has the following beneficial effects: 1. This novel prefabricated building structure vibration damping bearing provides constraint force to the lead core through the sliding engagement of a sliding block and a sliding groove, absorbing horizontal forces. Utilizing the self-locking structure of the limiting ring and support ring, it shares both horizontal and vertical forces, preventing deformation of the rubber layer and lead core, preventing bearing dislocation, and ensuring the bearing's horizontal isolation advantages while enhancing its vertical damping capacity. Specifically, when vertical seismic waves are introduced, the arc surface of the sliding block generates slight rolling or sliding within the sliding groove, converting the concentrated vertical dynamic load into local contact pressure, which is then transmitted to the sealing plate through the curved surface of the sliding groove, avoiding stress concentration. The rolling friction of the sliding block can consume some vertical vibration energy, compensating for the insufficient vertical damping of the rubber layer. Simultaneously, the self-locking structure of the limiting ring and limiting groove can withstand certain vertical tensile and compressive forces during vertical fluctuations, sharing vertical forces, reducing tensile stress in the rubber layer, and preventing cracking or permanent deformation, thereby effectively improving the bearing's vertical damping capacity.

[0013] 2. The limiting ring and limiting groove of this utility model form a self-locking structure. When vertical fluctuation occurs, the horizontal plate of the limiting ring contacts the top or bottom of the limiting groove, allowing the support to bear a certain vertical tensile force and vertical compressive force. The self-locking structure shares the vertical force, reduces the tensile stress of the rubber layer, and avoids cracking or permanent deformation. Under high axial compression, the lead core may buckle, and the rubber may bulge laterally. The self-locking structure of the limiting ring and limiting groove provides lateral restraint, inhibits the lateral deformation of the rubber layer, improves the vertical bearing capacity, enhances local stability, and prevents buckling instability. The self-locking structure allows the vertical pressure to be transmitted more evenly from the limiting ring to the contact surface of the limiting groove, reducing the risk of crushing caused by excessive local compressive stress in the rubber layer. Moreover, the lead core is prone to plastic deformation under pressure. The self-locking structure shares part of the pressure, delays the cumulative damage of the lead core, and works with the lead core to resist compression. The self-locking structure enables the support to have tensile, compressive, and shear resistance, improving its stability and durability, thereby effectively enhancing the tensile effect of the support. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 This is a cross-sectional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the steel plate in this utility model.

[0016] In the diagram: 1. Connecting plate; 2. Sealing plate; 3. Sliding block; 4. Lead core; 5. Steel plate; 6. Rubber layer; 7. Limiting ring; 8. Rubber protective cylinder; 9. Limiting groove; 10. Support ring; 11. Rubber block; 12. Protrusion. Detailed Implementation

[0017] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying anything.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0019] Please see Figures 1 to 3 This utility model provides a technical solution: a novel prefabricated building structure vibration damping support, comprising a support member and two symmetrically arranged connecting components, the upper and lower ends of which are movably connected to the two connecting components respectively. Multiple steel plates 5 and multiple rubber layers 6 are fitted onto the outer wall of the support member, with the steel plates 5 and rubber layers 6 arranged alternately longitudinally. In actual implementation, the contact surfaces of the steel plates 5 and rubber layers 6 are fixed by adhesive bonding. Each steel plate 5 and each rubber layer 6 is located between two connecting components.

[0020] The connecting components include a connecting plate 1 and a sealing plate 2, which are fixedly installed together. The fixing of the connecting plate 1 and the sealing plate 2 includes, but is not limited to, methods such as welding or bonding.

[0021] The support includes a lead core 4 and two sliding blocks 3. The two sliding blocks 3 are fixedly installed at the upper and lower ends of the lead core 4, respectively, and the sliding blocks 3 are slidably connected to the sealing plate 2.

[0022] The sliding connection between the sliding block 3 and the sealing plate 2 does not simply refer to a linear sliding relationship, but rather to the ability for them to slide or for their positions to partially deflect after partial sliding. The sliding block 3 and the lead core 4 are fixed by means including but not limited to welding and bonding.

[0023] A rubber protective sleeve 8 is fixedly installed between the two connecting plates 1. The rubber protective sleeve 8 can also be connected to the connecting plates 1 by adhesive bonding. A support ring 10 is fixedly connected to the inner wall of the rubber protective sleeve 8. The upper and lower ends of the support ring 10 are hooked and connected to the sealing plates 2 in the two connecting components, respectively.

[0024] Wherein, the inner side wall of the support ring 10 is bonded to the outer side walls of the steel plate 5 and the rubber layer 6 respectively. The outer side wall of the support ring 10 and the rubber protective cylinder 8 are connected by, but not limited to, bonding. The support ring 10 restricts the local buckling of the steel plate 5 and the rubber layer 6, ensures that the support generates uniform horizontal shear deformation during an earthquake, avoids stress concentration, prolongs the service life, optimizes the horizontal deformation performance, effectively suppresses the lateral bulging of the rubber layer 6 under vertical load, improves the vertical bearing capacity of the support, and enhances the vertical stability. The support ring 10 reduces the stress fluctuation at the junction of the steel plate 5 and the rubber layer 6, lowers the material fatigue damage under repeated loads, and further can constrain the plastic deformation range of the lead core 4. The support ring 10 enables the lead core 4 to absorb seismic energy more concentratedly, while the elastic restoring force of the rubber layer 6 acts in synergy with the damping characteristic of the lead core 4 to improve the energy dissipation efficiency.

[0025] Specifically, the connecting component further comprises a limit ring 7 with a C-shaped cross section, the limit ring 7 is sleeved on the outer side wall of the sealing plate 2 and is fixedly connected therewith. The upper and lower ends of the support ring 10 are both provided with annular limit grooves 9, the upper part or the lower part of the limit ring 7 is located in the limit groove 9 of the support ring 10, and when necessary, the limit ring 7 and the limit groove 9 of the support ring 10 can be in limit snap connection.

[0026] Wherein, the limit ring 7 is formed by connecting two transverse plates and one vertical plate, and has a C-shaped cross section structure. When the support is in a natural state without seismic fluctuation, there is a certain gap between the transverse plate of the limit ring 7 located at the notch of the limit groove 9 and the inner side wall, top and bottom of the limit groove 9. When subjected to horizontal seismic fluctuation, the certain gap between the transverse plate of the limit ring 7 and the inner side wall of the limit groove 9 allows the support to deform to a certain extent, reduces the structural stiffness and avoids brittle failure; as the displacement increases, when the transverse plate of the limit ring 7 contacts the inner side wall of the limit groove 9, the transverse plate of the limit ring 7 and the inner side wall of the limit groove 9 form a sliding friction interface to consume seismic energy; the closed cross section of the C-shaped structure enables the limit ring 7 and the limit groove 9 to form a self-locking structure, which prevents the support from dislocating and ensures the structural integrity.

[0027] When vertical fluctuations occur, the horizontal plate of the limiting ring 7 contacts the top or bottom of the limiting groove 9, allowing the support to bear a certain vertical tensile and compressive force. The self-locking structure shares the vertical force, reducing the tensile stress of the rubber layer 6 and preventing cracking or permanent deformation. During an earthquake, the vertical load may change repeatedly, with alternating tension and compression. The self-locking design ensures that the support can maintain stability under tensile force. Under high axial compression, the lead core may buckle, and the rubber may bulge laterally. The self-locking structure of the limiting ring 7 and the limiting groove 9 provides lateral restraint, suppressing the lateral deformation of the rubber layer 6, improving the vertical bearing capacity, enhancing local stability, and preventing buckling instability. The self-locking structure allows vertical pressure to be transmitted more evenly through the limiting ring 7 to the limiting groove 9 contact surface, reducing the risk of crushing caused by excessive local compressive stress in the rubber layer 6; and the lead core 4 is prone to plastic deformation under pressure, the self-locking structure shares part of the pressure, delays the cumulative damage of the lead core 4, and works with the lead core 4 to resist pressure; the self-locking structure enables the support to have tensile, compressive and shear resistance, improving its stability and durability.

[0028] Specifically, multiple connecting grooves are provided on the inner sidewall of the support ring 10, and multiple rubber blocks 11 are fixedly connected to the outer sidewall of the rubber layer 6. The rubber blocks 11 are embedded in the connecting grooves of the support ring 10. The rubber blocks 11 and the rubber layer 6 are integrally formed.

[0029] In actual implementation, the inner wall of the support ring 10 is bonded to the outer walls of each steel plate 5 and rubber layer 6. After the rubber block 11 is embedded in the connecting groove of the support ring 10, it forms an integral force-bearing system with the rubber layer 6, allowing for more even distribution of vertical loads, preventing excessive local pressure that could cause the rubber layer 6 to collapse, reducing the interfacial shear stress between the steel plate 5 and the rubber layer 6, and preventing delamination. Under high pressure, the rubber layer 6 may bulge laterally, but the embedded rubber block 11 provides lateral restraint, suppressing deformation and enhancing the support's resistance to instability. During earthquakes, the vertical load may repeatedly alternate between tension and compression. The rubber layer 6 and the rubber block 11 are integrally formed, ensuring that the support maintains its integrity under tension, preventing failure due to cracking of the rubber layer 6 under tension, enhancing the overall stiffness of the support, making horizontal displacement more controllable, and preventing excessive deformation that could lead to structural instability. The rubber block 11 and the rubber layer 6 are vulcanized as a whole to avoid stress concentration caused by delamination or local debonding, delay aging, and make the integrated structure more fatigue resistant under long-term load or repeated earthquake action.

[0030] Specifically, the sealing plate 2 has a sliding groove, the sliding block 3 is located in the sliding groove, and the contact surface between the sliding block 3 and the sliding groove is spherical.

[0031] When an earthquake occurs, the upper and lower connecting plates 1 become misaligned, causing the sliding blocks 3 at the top and bottom of the lead core 4 to move within the sliding groove. They move randomly horizontally following the earthquake fluctuations, providing increasing geometric constraint when the displacement is too large. This can prevent excessive deformation of the lead core 4 to a certain extent and avoid tearing of the rubber layer. Furthermore, the contact surfaces between the sliding blocks 3 and the sliding groove are both spherical. The top of the upper sliding block 3 contacts the top of the sliding groove, and both the top of the sliding block 3 and the top of the upper sliding groove are spherical, with the center of the sphere located below the sliding block 3. The bottom of the lower sliding block 3 contacts the bottom of the sliding groove, and both the bottom of the lower sliding block 3 and the bottom of the sliding groove are spherical, with the center of the sphere located above the sliding block 3.

[0032] When vertical seismic waves are introduced, the spherical surface of sliding block 3 undergoes slight rolling or sliding within the sliding groove, converting the concentrated vertical dynamic load into local contact pressure, which is then transmitted to the sealing plate 2 through the curved surface distribution of the sliding groove, thus avoiding stress concentration. The rolling friction of sliding block 3 can consume some of the vertical vibration energy, compensating for the insufficient vertical damping of rubber layer 6. The arc-shaped trajectory of the sliding groove causes the lead core 4 to drive sliding block 3 to undergo shear deformation with the seismic waves, while the rolling friction of the spherical surface of sliding block 3 within the sliding groove consumes some energy. When the seismic waves are subjected to horizontal tension, the sidewall of the sliding groove limits the sliding block 3, preventing it from horizontally detaching from the sliding groove. After the earthquake, the geometric center of the spherical surface of sliding block 3 coincides with the curvature center of the sliding groove. Under the action of the elastic restoring force of several rubber layers 6, sliding block 3 automatically returns to its initial position, and the two connecting plates 1 also return to their original positions, improving their stability.

[0033] Specifically, the surface of the steel plate 5 is fixedly connected with multiple evenly distributed protrusions 12, and the surface of the rubber layer 6 is provided with grooves that limit and engage with the protrusions 12. Each protrusion 12 corresponds to each groove, and the protrusions 12 and the grooves mutually limit and engage with each other. The protrusions 12 are hemispherical.

[0034] The fit between the protrusion 12 and the groove forms a physical interlock, reducing the relative sliding between the steel plate 5 and the rubber layer 6, especially under horizontal loads, preventing interlayer misalignment; avoiding interface slippage caused by long-term vibration or dynamic loads, ensuring the overall stability of the support; the hemispherical protrusion 12 transforms concentrated loads into multi-point contact, reducing local stress in the rubber layer 6 and preventing premature aging or tearing caused by stress concentration; the flexible interlock between the protrusion 12 and the groove allows the support to maintain coordinated deformation of each layer during compression and shearing, avoiding delamination or local peeling; the small-range deformation of the rubber layer 6 within the groove can help dissipate some vibration energy, enhancing the seismic isolation effect; and the matching of the protrusion 12 and the groove can assist in precise alignment during installation, reducing construction errors.

[0035] In actual use, when the support is subjected to horizontal seismic fluctuations, the sliding blocks 3 at the top and bottom of the lead core 4 slide in the sliding grooves on the sealing plate 2, consuming some energy and providing a constraint force on the lead core 4 to prevent deformation. Meanwhile, the limiting ring 7 fixed to the outer wall of the sealing plate 2 and the limiting groove 9 on the outer wall of the support ring 10 cooperate to form a self-locking structure, sharing the horizontal tension and preventing the rubber layer 6 from deforming laterally. When the support is subjected to vertical seismic fluctuations, the self-locking structure of the limiting ring 7 and the limiting groove 9 shares the vertical force, preventing the support from dislodging and ensuring that the support can still maintain stability under vertical action, thereby improving the vertical damping effect of the support.

[0036] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A novel prefabricated building structure vibration damping bearing, characterized in that: comprising a support member and two connecting members arranged symmetrically up and down, wherein the upper and lower ends of the support member are movably connected with the two connecting members respectively; a plurality of steel plates (5) and a plurality of rubber layers (6) are sleeved on the outer side wall of the support member, and the plurality of steel plates (5) and the plurality of rubber layers (6) are alternately distributed in the longitudinal direction; the connecting member comprises a connecting plate (1) and a sealing plate (2), and the connecting plate (1) and the sealing plate (2) are fixedly mounted; the support member comprises a lead core (4) and two sliding blocks (3), the two sliding blocks (3) are respectively and fixedly mounted at the upper and lower ends of the lead core (4), and the sliding blocks (3) are in sliding connection with the sealing plate (2); a rubber protective cylinder (8) is fixedly mounted between the two connecting plates (1), a support ring (10) is fixedly connected to the inner side wall of the rubber protective cylinder (8), and the upper and lower ends of the support ring (10) are respectively hooked and connected with the sealing plates (2) in the two connecting members.

2. The novel prefabricated building structure vibration damping bearing according to claim 1, characterized in that: the connecting member further comprises a limit ring (7) with a C-shaped cross section, the limit ring (7) is sleeved on the outer side wall of the sealing plate (2) and is fixedly connected therewith; the upper and lower ends of the support ring (10) are both provided with annular limit grooves (9), and the upper part or the lower part of the limit ring (7) is located in the limit groove (9) of the support ring (10).

3. The novel prefabricated building structure vibration damping bearing according to claim 1, characterized in that: a plurality of connecting grooves are formed on the inner side wall of the support ring (10), a plurality of rubber blocks (11) are fixedly connected to the outer side wall of the rubber layer (6), and the rubber blocks (11) are embedded and mounted in the connecting grooves of the support ring (10).

4. A novel prefabricated building structure vibration damping bearing according to claim 3, characterized in that: the rubber block (11) and the rubber layer (6) are of an integrally formed structure.

5. A novel prefabricated building structure vibration damping bearing according to claim 1, characterized in that: the sealing plate (2) is provided with a sliding groove, the sliding block (3) is located in the sliding groove, and the abutting surfaces of the sliding block (3) and the sliding groove are both spherical surfaces.

6. A novel prefabricated building structure vibration damping bearing according to claim 1, characterized in that: a plurality of uniformly distributed protrusions (12) are fixedly connected to the surface of the steel plate (5), and the surface of the rubber layer (6) is provided with grooves that are in limit clamping connection with the protrusions (12).

7. A novel prefabricated building structure vibration damping bearing according to claim 6, characterized in that: the protrusion (12) is hemispherical.

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