Rubber support with system conversion function
By combining shear bolts, shear plates, and energy-dissipating buffer blocks, the rubber bearing achieves multi-level shear deformation and sliding friction under different seismic intensities, solving the problems of large initial investment and poor reliability of existing devices, and improving the safety and economy of bridges.
Patent Information
- Application Number
- CN202520146267.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Existing vibration damping and energy dissipation devices require a large initial investment, have poor long-term operational reliability, and exhibit unstable horizontal force transmission under seismic action, posing a risk of beam collapse.
The rubber bearing with system conversion function is adopted. Through the combination design of shear bolts, shear plates and buffer energy dissipation blocks, the rubber bearing body achieves multi-level shear deformation and sliding friction under different seismic intensities, dissipates seismic energy, and shear bolts and shear plates are cut off when needed to convert the system.
It effectively dissipates seismic energy under different earthquake intensities, improves the safety and reliability of the bearing, reduces production and maintenance costs, and has a multi-level conversion function.
Smart Images
Figure CN223805407U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to bridge bearing, especially a rubber bearing with system conversion function. BACKGROUND
[0002] Bridge bearing is the important part of connecting bridge superstructure and substructure, and the bridge bearing reliably transmits the counterforce and deformation of bridge superstructure to bridge substructure, and its performance will directly affect the safety and life of bridge. Plate type rubber bearing is widely used in bridge engineering construction due to its simple structure, convenient processing, low price, small material consumption, low structure height, convenient installation and easy replacement and other advantages.
[0003] Small and medium span bridges using plate type rubber bearings will be inclined, clamped and rolled due to the fact that the bearings are directly placed on the cushion stone, and the horizontal force transmission completely relies on the friction force between the contact surfaces, so that the horizontal force transmitted to the pier column has certain randomness, and the sliding is uncontrollable and even the beam may fall. The current solution is to use shock absorption measures, including friction pendulum bearing, high damping rubber bearing, lead core rubber bearing, viscous damper and other shock absorption and energy dissipation devices. However, the above existing devices have the problems of large one-time investment, poor long-term operation performance reliability and low cost performance, which exist many problems in popularization and application.
[0004] Based on the above reasons, the technical personnel in the field urgently need to develop a bearing with shock absorption system conversion function, which not only meets the daily operation safety, but also realizes effective energy dissipation under strong earthquake and has safety reserve under super-protection earthquake. The applicant has not found any patent literature similar to the utility model in the domestic patent database. SUMMARY
[0005] The utility model aims at providing a rubber bearing with system conversion function, which can effectively solve the problems of large one-time investment and poor long-term operation performance reliability of the existing shock absorption and energy dissipation devices.
[0006] The overall technical concept of the utility model is as follows:
[0007] The rubber bearing with system conversion function comprises a rubber bearing body composed of horizontal steel plates vertically distributed in the rubber block, a pre-embedded plate arranged on the upper surface of the rubber bearing body, an anchoring sleeve fixed on the pre-embedded plate and used for fixing with the upper structure, a shear plate or shear frame matched with the outer periphery of the rubber bearing body arranged on the lower surface of the pre-embedded plate, and the shear plate or shear frame or ear plate is fixed with the pre-embedded plate through shear bolts.
[0008] In the above structure, the rubber support body is subjected to a small horizontal force or in a small earthquake intensity, and the earthquake energy can be consumed by the sliding friction between the embedded plate and the rubber support body and the shear deformation of the rubber support body itself. When the earthquake intensity exceeds the design limit, the shear bolt is sheared off, and the shear plate or shear frame is detached, and the earthquake energy can be continuously consumed by the sliding friction between the embedded plate and the rubber support body and the shear deformation of the rubber support body itself.
[0009] The specific technical structure of the utility model is:
[0010] In order to facilitate the better application of the utility model in the existing plate support, the preferred technical implementation mode is that the rubber support body is cylindrical or quadrangular prism.
[0011] In order to simplify the product structure under the premise of meeting the structural strength and improve the assembly reliability of parts, the preferred technical implementation means is that the shear bolt is fixed with the anchoring sleeve.
[0012] In order to make the utility model resist the sliding of the support and consume a certain amount of earthquake energy when the earthquake intensity is low, the preferred technical implementation means is that the shear plate is fixed with a buffer energy dissipation block between the outer periphery of the rubber support body. The buffer energy dissipation block preferably adopts an aging-resistant material that produces elastic deformation under impact, such as rubber.
[0013] In order to make the utility model better adapt to the system conversion in different intensity earthquakes, the preferred technical implementation means is that the shear plate includes a first shear plate and a second shear plate arranged at the outer periphery of the rubber support body and used to limit different radial displacement amounts thereof. The above structure meets the needs of system conversion in different earthquake intensity by gradually shearing off the first shear plate and the second shear plate.
[0014] In order to facilitate the assembly of the first shear plate and the second shear plate, the preferred technical implementation mode is that the first shear plate is fixed with the lower end of the anchoring sleeve through the first shear bolt, and the second shear plate is fixed with the lower end of the anchoring sleeve through the second shear bolt.
[0015] The shear frame can be realized in various structural forms, wherein the preferred technical implementation mode is that the shear frame adopts an integrated structure or a frame structure assembled by section bars and plates. Further, the section bar can be selected from angle steels.
[0016] In order to realize the fixation of the shear frame, the preferred technical implementation mode is that the shear frame is fixed with the embedded plate through the ear plates arranged on the outer side thereof. The more preferred technical implementation means is that the ear plates are positioned by being attached to the outer side of the shear frame or are integrally formed with the shear frame.
[0017] In order to make the utility model satisfy the use requirement of different shape rubber support body, the preferred technical means is that the rubber support body is cylindrical, the shear frame is circular ring structure or ring structure of outer square and inner circle which is matched with the shape of the rubber support body, and the ear plate is uniformly distributed along the outer periphery of the shear frame at equal angles.
[0018] Further, the rubber support body adopts four prism structure with rectangular cross section, the shear frame adopts rectangular ring structure or ring structure of outer circle and inner square which is matched with the shape of the rubber support body, and the ear plate is fixedly attached to the outer periphery of the shear frame or the top corner of the outer periphery of the shear frame.
[0019] In the description of the utility model, the orientation or position relationship indicated by the terms "vertical", "upper surface", "lower surface", "outer periphery", "outer side", "outer periphery" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of simplifying the description of the utility model, and does not indicate or imply that the indicated device or element must have a particular orientation, structure and operation, so it cannot be understood as a limitation on the utility model. The terms "first", "second" are only used for description and cannot be understood as implying importance.
[0020] The technical progress achieved by the utility model is that:
[0021] 1. The utility model adopts the structural design of shear bolts and shear plates, first, when the rubber support body bears small horizontal force or low earthquake intensity, the earthquake energy can be consumed through the shear deformation of the rubber support body itself, when the earthquake intensity exceeds the design value of the shear bolt, the shear bolt is sheared, and the earthquake energy is consumed through the sliding friction between the embedded plate and the rubber support body and the shear deformation of the rubber support body itself, and the energy dissipation system conversion function is provided; second, the structure is simple and the connection of parts is reliable, and after the earthquake, the shear bolt can be replaced to realize reuse, which improves work efficiency and reduces production and maintenance cost.
[0022] 2. The utility model adopts the structural design of the buffer energy dissipation block cooperating with the shear plate, when the rubber support body bears small horizontal force or low earthquake intensity, the earthquake energy can be consumed through the shear deformation of the rubber support body itself, when the earthquake reaches a certain intensity, the support can consume the earthquake energy through the sliding friction between the embedded plate and the rubber support body, the deformation of the buffer energy dissipation block and the shear deformation of the rubber support body itself, and further meet the needs of system conversion of the support under different working conditions.
[0023] 3. The utility model discloses a two-stage shear plate structure design, can satisfy support under the different horizontal force action or intensity different earthquake, can adopt the working mode of shear two-stage shear bolt and drop two-stage shear plate in turn respectively, through the sliding friction between the embedded plate and the rubber support body, the shear deformation of the rubber support body itself consumes seismic energy, and further satisfy the need that support realizes multistage conversion under different working conditions.
[0024] 4. The utility model discloses a shear frame and ear plate structure design, first, guarantee shear bolt force simultaneously, force accurate, second, greatly reduce the use of material and material variety, third, ear plate and shear frame combined structure form is flexible and various, can set up according to different demands, and the applicability is strong. DRAWINGS
[0025] The utility model discloses the drawing has:
[0026] Figure 1 It is the whole structure schematic diagram of embodiment 1 of the utility model.
[0027] Figure 2 It is Figure 1 A-A view of.
[0028] Figure 3 It is the state schematic drawing of rubber support in embodiment 1 and is subjected to smaller horizontal force.
[0029] Figure 4 It is the whole structure schematic diagram of embodiment 2 of the utility model.
[0030] Figure 5 It is Figure 4 B-B view of.
[0031] Figure 6 It is the state schematic drawing of rubber support in embodiment 2 and is subjected to smaller horizontal force.
[0032] Figure 7 It is the whole structure schematic diagram of embodiment 3 of the utility model.
[0033] Figure 8 It is Figure 7 C-C view of.
[0034] Figure 9 It is the state schematic drawing of rubber support in embodiment 3 and is subjected to smaller horizontal force.
[0035] Figure 10 It is the whole structure schematic diagram of embodiment 4 of the utility model.
[0036] Figure 11 It is Figure 10 D-D view of.
[0037] Figure 12 is a state schematic diagram of the rubber support in example 4 when a smaller horizontal force is applied.
[0038] Figure 13 is a whole structure schematic diagram of example 5 of the utility model.
[0039] Figure 14 is Figure 13 E-E view.
[0040] Figure 15 is a state schematic diagram of the rubber support in example 5 when a smaller horizontal force is applied.
[0041] Figure 16 is a whole structure schematic diagram of example 6 of the utility model.
[0042] Figure 17 is Figure 16 F-F view.
[0043] Figure 18 is a whole structure schematic diagram of example 7 of the utility model.
[0044] Figure 19 is Figure 18 G-G view.
[0045] Figure 20 is a whole structure schematic diagram of example 8 of the utility model.
[0046] Figure 21 is Figure 20 H-H view.
[0047] Figure 22 is a schematic diagram of the shear frame and the ear plate using integrated structure when the rubber support body is a quadrangular prism.
[0048] Figure 23 is a schematic diagram of the shear frame and the ear plate using integrated structure when the rubber support body is a cylinder.
[0049] The reference signs in the drawings are as follows:
[0050] 1, rubber support body; 2, pre-embedded plate; 3, anchoring sleeve; 4, shear bolt; 4A, first shear bolt; 4B, second shear bolt; 5, ear plate; 6, shear plate; 6A, first shear plate; 6B, second shear plate; 7, buffer energy dissipation block; 8, shear frame. DETAILED DESCRIPTION
[0051] The drawings show the embodiments of the present application, and the embodiments of the present application are further described below in combination with the drawings, but should not be understood as limiting the present application, and any equivalent technical means replacement according to the description does not deviate from the protection scope of the present application.
[0052] Embodiment 1
[0053] The overall structure of the embodiment is shown in Figures 1 to 3 The rubber support with system conversion function comprises a rubber support body 1 composed of horizontal steel plates vertically distributed in the rubber block, a pre-embedded plate 2 arranged on the upper surface of the rubber support body 1, an anchoring sleeve 3 fixed on the pre-embedded plate 2 and used for fixing the upper structure, a shear plate 6 provided on the lower surface of the pre-embedded plate 2 and matched with the outer periphery of the rubber support body 1, and the shear plate 6 is fixed with the anchoring sleeve 3 through shear bolts 4.
[0054] The rubber support body 1 adopts a quadrangular prism structure with a rectangular cross section, and can also adopt a cylindrical structure with a circular cross section.
[0055] The shear plate 6 comprises a first shear plate 6A and a second shear plate 6B arranged on the outer periphery of the rubber support body 1 and used for limiting the different radial displacement amounts. The above structure meets the needs of system conversion in different seismic intensity earthquakes through the first shear plate 6A and the second shear plate 6B.
[0056] The first shear plate 6A is fixed with the lower end of the anchoring sleeve 3 through the first shear bolt 4A, and the second shear plate 6B is fixed with the lower end of the anchoring sleeve 3 through the second shear bolt 4B.
[0057] The working principle of the embodiment is as follows:
[0058] When the horizontal action of the upper structure is transmitted to the rubber support body 1 through the friction force between the pre-embedded plate 2 and the rubber support body 1, the rubber support body 1 is in a shear deformation state when subjected to a small horizontal force, as shown in Figure 3 In the case of small earthquake force, the earthquake energy can be consumed through the shear deformation of the rubber support body 1 itself.
[0059] When the earthquake intensity reaches a certain degree and overcomes the friction force between the pre-embedded plate 2 and the rubber support body 1, the first shear plate 6A can resist the sliding of the rubber support body 1, and the earthquake energy is continuously consumed through the shear deformation of the rubber support body 1 itself.
[0060] When the earthquake intensity is greater than the friction between the embedded plate 2 and the rubber bearing body 1 and the shearing force of the first shear bolt 4A, the first shear bolt 4A is sheared, and the first shear plate 6A is detached; the rubber bearing body 1 can consume the earthquake energy through the sliding friction between the embedded plate 2 and the rubber bearing body 1 and the shear deformation of the rubber bearing body 1 itself; further, when the rubber bearing body 1 slides to the second shear plate 6B, the second shear plate 6B is sheared, further consuming the earthquake energy. The structure in this embodiment has a multi-stage shearing function.
[0061] Embodiment 2
[0062] The overall structure of this embodiment is shown in Figures 4 to 6 The rubber bearing with system conversion function includes a rubber bearing body 1 composed of horizontal steel plates vertically distributed in the rubber block, an embedded plate 2 arranged on the upper surface of the rubber bearing body 1, an anchoring sleeve 3 fixed on the embedded plate 2 and used for fixing with the upper structure, a shear plate 6 provided on the lower surface of the embedded plate 2 and matched with the outer periphery of the rubber bearing body 1, and a shear bolt 4 used for fixing the shear plate 6 with the anchoring sleeve 3. A buffer energy dissipation block 7 is fixed between the shear plate 6 and the outer periphery of the rubber bearing body 1. The buffer energy dissipation block 7 is made of an anti-aging material that can produce elastic deformation under impact, such as rubber.
[0063] The rubber bearing body 1 adopts a four-prism structure with a rectangular cross section.
[0064] The working principle of this embodiment is as follows:
[0065] The horizontal action of the upper structure is transmitted to the rubber bearing body 1 through the friction between the embedded plate 2 and the rubber bearing body 1, and the rubber bearing body 1 is in a shear deformation state when subjected to a small horizontal force, as shown in Figure 6 Under small earthquakes, the earthquake energy can be consumed through the shear deformation of the rubber bearing body 1 itself.
[0066] When the earthquake intensity reaches a certain degree and overcomes the friction between the embedded plate 2 and the rubber bearing body 1, the buffer energy dissipation block 7 can resist the sliding of the bearing and consume a certain amount of earthquake energy first; under large earthquake action, the earthquake energy can be consumed through the sliding friction between the embedded plate 2 and the rubber bearing body 1, the deformation of the buffer energy dissipation block 7, and the shear deformation of the rubber bearing body 1 itself; when the earthquake intensity is greater than the friction between the embedded plate 2 and the rubber bearing body 1, the deformation of the buffer energy dissipation block 7, and the shearing force of the shear bolt 6, the shear bolt 6 is sheared, the buffer energy dissipation block 7 and the shear plate 6 are detached, and the earthquake energy is further consumed through sliding.
[0067] Embodiment 3
[0068] The overall structure of this embodiment is shown in Figures 7 to 9As shown, the rubber support with system conversion function comprises a rubber support body 1 composed of horizontal steel plates vertically distributed in the rubber block, a pre-embedded plate 2 arranged on the upper surface of the rubber support body 1, an anchoring sleeve 3 fixed on the pre-embedded plate 2 and used for fixing the upper structure, a shear frame 8 arranged on the lower surface of the pre-embedded plate 2 and matched with the outer periphery of the rubber support body 1, the shear frame 8 adopts an integrated rectangular ring structure or an outer circle and inner square ring structure matched with the shape of the rubber support body 1, and the shear frame 8 is radially positioned by an ear plate 5 fixedly arranged on the outer periphery thereof, the ear plate 5 is fixed by a shear bolt 4, and the shear bolt 4 is fixed with the anchoring sleeve 3.
[0069] The rubber support body 1 adopts a four-prism structure with a rectangular cross section.
[0070] The shear frame 8 and the ear plate in the embodiment can also adopt an integrated structure, as shown in Figure 22 .
[0071] The working principle of the embodiment is as follows:
[0072] The horizontal action of the upper structure is transmitted to the rubber support body 1 through the friction between the pre-embedded plate 2 and the rubber support body 1, and the rubber support body 1 is in a shearing deformation state when subjected to a small horizontal force, as shown in Figure 9 . Meanwhile, the seismic energy can be consumed through the shearing deformation of the rubber support body 1 when the earthquake intensity is low.
[0073] When the earthquake intensity reaches a certain degree and overcomes the friction between the pre-embedded plate 2 and the rubber support body 1, the shear frame 8 can resist the sliding of the support first, and the seismic energy can be consumed through the shearing deformation of the rubber support body 1.
[0074] When the earthquake intensity exceeds the friction between the pre-embedded plate 2 and the rubber support body 1 and the shearing force of the shear bolt 4, the shear bolt 4 is sheared, and the ear plate 5 and the shear frame 8 are detached; the support can consume the seismic energy through the sliding friction between the pre-embedded plate 2 and the rubber support body 1 and the shearing deformation of the rubber support body 1.
[0075] Embodiment 4
[0076] The overall structure of the embodiment is shown in Figures 10 to 12 , and the difference between the embodiment and Embodiment 3 is that the shear frame 8 is radially positioned by the ear plate 5 fixedly arranged on the outer periphery corner thereof, and the rest is the same as Embodiment 3.
[0077] Embodiment 5
[0078] The overall structure of the embodiment is shown in Figures 13 to 15 , and the difference between the embodiment and Embodiment 3 is that the shear frame 8 adopts a frame structure spliced by angle steels, the ear plate 5 adopts an angle steel, and the rest is the same as Embodiment 3.
[0079] Example 6
[0080] The overall structure of this example is shown in Figures 16 to 17 The difference between this example and Example 3 is that the rubber support body 1 has a cylindrical structure. The shear frame 8 has a ring structure that is integrated with the rubber support body 1 and matches the shape of the rubber support body 1. The ear plates 5 are distributed at equal angles of 90° in the horizontal and vertical directions along the outer periphery of the shear frame 8. The shear frame 8 and the ear plates 5 in this example can also have an integrated structure, as shown in Figure 23 The rest is the same as in Example 3.
[0081] Example 7
[0082] The overall structure of this example is shown in Figures 18 to 19 The difference between this example and Example 6 is that the ear plates 5 are distributed at equal angles of 90° in the oblique direction along the outer periphery of the shear frame 8. The rest is the same as in Example 6.
[0083] Example 8
[0084] The overall structure of this example is shown in Figures 20 to 21 The difference between this example and Example 6 is that the shear frame 8 and the ear plates 5 are made of angle steel. The rest is the same as in Example 6.
Claims
1. A rubber bearing with a system conversion function, comprising a rubber bearing body (1) composed of horizontal steel plates vertically distributed in a rubber block, a pre-embedded plate (2) arranged on the upper surface of the rubber bearing body (1), and an anchoring sleeve (3) fixed on the pre-embedded plate (2) and used for fixing with an upper structure, characterized in that The lower surface of the embedded plate (2) is provided with a shear plate (6) matched with the outer periphery of the rubber support body (1) or a shear frame (8) positioned by the lug plate (5), and the shear plate (6) or the shear frame (8) or the lug plate (5) is fixed with the embedded plate (2) through shear bolts (4).
2. The rubber bearing with a system conversion function according to claim 1, characterized in that The rubber support body (1) is cylindrical or quadrangular prism-shaped.
3. The rubber bearing with a system conversion function according to claim 1, characterized in that The shear bolts (4) are fixed with the anchoring sleeve (3).
4. The rubber bearing with a function of system conversion according to any one of claims 1, 2 or 3, characterized in that The shear plate (6) is fixed with the outer periphery of the rubber support body (1) and is provided with a buffer energy dissipation block (7).
5. The rubber bearing with a function of system conversion according to any one of claims 1, 2 or 3, characterized in that The shear plate (6) includes a first shear plate (6A) and a second shear plate (6B) arranged at the outer periphery of the rubber support body (1) and used for defining different radial displacement amounts.
6. The rubber bearing with a system conversion function according to claim 5, characterized in that The first shear plate (6A) is fixed with the lower end of the anchoring sleeve (3) through a first shear bolt (4A), and the second shear plate (6B) is fixed with the lower end of the anchoring sleeve (3) through a second shear bolt (4B).
7. The rubber bearing with a system conversion function according to claim 1, characterized in that The shear frame (8) adopts an integrated structure or a frame structure assembled by section bars and plates.
8. The rubber bearing with a system conversion function according to claim 7, characterized in that The shear frame (8) is fixed with the embedded plate (2) through the lug plate (5) arranged at the outer side of the shear frame (8), and the shear frame (8) and the lug plate (5) adopt a close positioning or an integrated structure.
9. The rubber bearing with a system conversion function according to claim 7 or 8, characterized in that The rubber support body (1) is cylindrical, the inner side of the shear frame (8) is circular and matched with the shape of the rubber support body (1), and the lug plate (5) is evenly distributed along the outer periphery of the shear frame (8) at equal angles.
10. The rubber bearing with a system conversion function according to claim 7 or 8, characterized in that The rubber support body (1) adopts a quadrangular prism structure with a rectangular cross section, the inner side of the shear frame (8) is rectangular and matched with the shape of the rubber support body (1), and the lug plate (5) is fixed to the outer periphery of the shear frame (8) or the top corners of the outer periphery of the shear frame (8).