Anti-seismic limiting and buffering device for bridge support
By combining shock-absorbing and stabilizing mechanisms with bridge bearings, and utilizing multi-stage shock absorption and support structures, the problem of poor seismic performance of existing bridge bearings has been solved, achieving more efficient shock absorption and stabilization effects and extending service life.
Patent Information
- Application Number
- CN202520002929.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-02
AI Technical Summary
Existing bridge bearing seismic buffer devices have poor seismic performance, short service life, and cannot effectively reduce the impact of external vibrations on the main structure of the bridge.
The bridge bearings utilize a combination of shock absorption and stabilization mechanisms, including components such as support plates, sliders, shock absorption springs, stabilizing columns, and telescopic columns. Through multi-stage shock absorption and support structures, the stability and buffering effect of the bridge bearings are enhanced.
It improves the seismic resistance of bridge bearings, extends their service life, reduces the impact of vibration on the main body of the bridge, and enhances the stability of the structure.
Smart Images
Figure CN223837895U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of bridge bearings, specifically to a seismic limiting and buffering device for bridge bearings. Background Technology
[0002] Bridge bearings are important structural components that connect the superstructure and substructure of a bridge. Located between the bridge and the bearing pad, they reliably transfer the loads and deformations borne by the superstructure to the substructure, making them a crucial force transmission device for bridges.
[0003] Bridge bearings are devices erected on piers and supporting the superstructure of bridges on their top surfaces. Their function is to fix the superstructure to the piers, bear various forces acting on the superstructure, and reliably transmit them to the piers. With the increase in road traffic, bridges are subjected to more and more vibrations generated by vehicles during travel.
[0004] To enhance the seismic resistance of bridges and reduce the impact of external vibrations on the bridge structure, current bridge bearings not only support the bridge structure but also provide seismic resistance. Existing seismic buffer devices rely on a single damping component for buffering, resulting in poor seismic buffering performance and a short service life. Therefore, a seismic limiting buffer device for bridge bearings is needed to address these issues. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a bridge bearing seismic limiting buffer device that achieves shock absorption and buffering of bridge bearings through the cooperation of a shock-absorbing and buffering mechanism and a stabilizing mechanism, thereby making the bridge bearings more stable.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a seismic limiting and buffering device for bridge bearings, comprising a bridge bearing and a base plate, wherein a bridge plate is fixedly installed on the bridge bearing, and the bridge bearing and the base plate are connected by a shock-absorbing and buffering mechanism.
[0009] The shock absorption mechanism includes two support plates. Two first hinge seats are symmetrically fixedly installed at the bottom of the bridge bearing. The two support plates are rotatably connected to the two first hinge seats respectively. Two sliding grooves are symmetrically opened on the bottom plate. Two sliders are slidably installed in the two sliding grooves respectively. The two sliders on the same side are connected by a first shock absorption spring. A second hinge seat is fixedly installed on each slider. The two ends of the two support plates are respectively hinged to four second hinge seats. Four stabilizing columns are symmetrically fixedly installed on the bottom plate. A sliding column is fixedly installed in each of the four stabilizing columns. The other end of each of the four sliding columns is fixedly connected to the bridge bearing. Multiple second shock absorption springs are fixedly installed on each of the four stabilizing columns. The other end of each second shock absorption spring is fixedly connected to the bottom of the bridge bearing.
[0010] A stabilizing mechanism is installed on the base plate for vibration damping and stabilization of the bridge bearings.
[0011] Preferably, the stabilizing mechanism includes a protective box, which is fixedly installed on the base plate. Two fixed plates are symmetrically fixedly installed on the bridge support. First telescopic columns are symmetrically fixedly installed on both fixed plates. The other end of each first telescopic column is fixedly connected to the base plate. A third shock-absorbing spring is fitted on each first telescopic column. The two ends of each third shock-absorbing spring are fixedly connected to the fixed plate and the base plate, respectively.
[0012] Furthermore, a second telescopic column is fixedly installed at the bottom end of the bridge bearing. The second telescopic column is fixedly connected to the base plate. A fourth damping spring is fitted on the second telescopic column. The two ends of the fourth damping spring are fixedly connected to the bridge bearing and the base plate, respectively.
[0013] Furthermore, two stabilizing telescopic rods are symmetrically fixedly installed on the bridge support, and the other end of each of the two stabilizing telescopic rods is fixedly connected to the base plate.
[0014] Based on the aforementioned scheme, limit rods are fixedly installed on both of the slides, and the four sliders are slidably connected to the corresponding two limit rods.
[0015] Furthermore, the outer wall of the protective box is coated with an anti-rust coating.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, this utility model provides a seismic limiting and buffering device for bridge bearings, which has the following beneficial effects:
[0018] When the bridge bearing is under pressure, the two support plates rotate on the two first hinge seats respectively, and multiple sliders move closer to each other. The two first damping springs make the sliders more stable, and the multiple sliding columns slide in their corresponding stabilizing columns. The multiple second damping springs work together to dampen and buffer the vibration. The stabilizing mechanism further supports and dampens the bridge bearing, making it more stable. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic cross-sectional view of the present invention.
[0021] Figure 3 This is a schematic diagram of the structure connecting the stabilizing column, the sliding column, and the second damping spring of this utility model;
[0022] Figure 4 This is a schematic diagram of the slider and the first shock-absorbing spring of this utility model.
[0023] The following are labels in the attached diagram: 1. Bridge plate; 2. Bridge bearing; 3. Base plate; 4. First hinge seat; 5. Support plate; 6. Slider; 7. Second hinge seat; 8. First damping spring; 9. Stabilizing column; 10. Sliding column; 11. Second damping spring; 12. Protective box; 13. Fixing plate; 14. First telescopic column; 15. Third damping spring; 16. Second telescopic column; 17. Fourth damping spring; 18. Stabilizing telescopic rod; 19. Limiting rod. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Example
[0026] Please see Figure 1-3 A seismic limiting and buffering device for bridge bearings includes a bridge bearing 2 and a base plate 3. A bridge plate 1 is fixedly installed on the bridge bearing 2, and the bridge bearing 2 and the base plate 3 are connected by a shock-absorbing and buffering mechanism.
[0027] Please see Figure 1-4The shock absorption mechanism includes two support plates 5. Two first hinge seats 4 are symmetrically fixedly installed at the bottom end of the bridge bearing 2. The two support plates 5 are rotatably connected to the two first hinge seats 4 respectively. Two sliding grooves are symmetrically opened on the base plate 3, and two sliders 6 are slidably installed in the two sliding grooves respectively. The two sliders 6 on the same side are connected by a first damping spring 8. A second hinge seat 7 is fixedly installed on each slider 6. The two ends of the two support plates 5 are respectively hinged to four second hinge seats 7. When the bridge bearing 2 is subjected to pressure, the two support plates 5 rotate on the two first hinge seats 4 respectively, and the multiple sliders 6 move closer to each other, thus absorbing the shock. The vibration spring 8 makes the multiple sliders 6 more stable. Four stabilizing columns 9 are symmetrically fixedly installed on the base plate 3. Each of the four stabilizing columns 9 has a sliding column 10 fixedly installed inside it. The other end of each of the four sliding columns 10 is fixedly connected to the bridge support 2. Multiple second damping springs 11 are fixedly installed on each of the four stabilizing columns 9. The other end of each second damping spring 11 is fixedly connected to the bottom end of the bridge support 2, so that the multiple sliding columns 10 slide within their respective stabilizing columns 9. The multiple second damping springs 11 work together to perform damping and buffering operations. The stabilizing mechanism further supports and dampens the bridge support 2, making the bridge support 2 more stable.
[0028] Please see Figure 1-3 A stabilizing mechanism is provided on the base plate 3 for vibration reduction and stabilization of the bridge bearing 2. The stabilizing mechanism includes a protective box 12, which is fixedly installed on the base plate 3. Two fixed plates 13 are symmetrically fixedly installed on the bridge bearing 2. First telescopic columns 14 are symmetrically fixedly installed on the two fixed plates 13. The other end of each first telescopic column 14 is fixedly connected to the base plate 3. Each first telescopic column 14 is fitted with a third damping spring 15. The two ends of each third damping spring 15 are fixedly connected to the fixed plate 13 and the base plate 3, respectively. The movement of the bridge bearing 2 drives the two fixed plates 13 to compress the multiple first telescopic columns 14, thereby compressing or extending the multiple first telescopic columns 14 and the multiple third damping springs 15, thereby reducing the vibration of the bridge bearing 2 and making the bridge bearing 2 more stable.
[0029] Please see Figure 1-3 A second telescopic column 16 is fixedly installed at the bottom of the bridge bearing 2. The second telescopic column 16 is fixedly connected to the base plate 3. A fourth damping spring 17 is fitted on the second telescopic column 16. The two ends of the fourth damping spring 17 are fixedly connected to the bridge bearing 2 and the base plate 3 respectively. The bridge bearing 2 is more stable through the cooperation of the second telescopic column 16 and the fourth damping spring 17.
[0030] Please see Figure 3It should also be noted that two stabilizing telescopic rods 18 are symmetrically fixedly installed on the bridge bearing 2. The other end of the two stabilizing telescopic rods 18 is fixedly connected to the base plate 3. The two stabilizing telescopic rods 18 make the two fixed plates 13 more stable, thereby making the bridge bearing 2 more stable.
[0031] Please see Figure 1-3 Limiting rods 19 are fixedly installed on both slides, and the four sliders 6 are slidably connected to the corresponding two limiting rods 19. The setting of the two limiting rods 19 makes the four sliders 6 more stable.
[0032] Please see Figure 1 and Figure 2 The outer wall of the protective box 12 is coated with anti-rust paint. Applying anti-rust paint protects the protective box 12 and extends its service life.
[0033] In summary, when the bridge bearing seismic limiting and buffering device is in use, and the bridge plate 1 and the bridge bearing 2 are under pressure, the bridge bearing 2 applies pressure to the two support plates 5, causing the two support plates 5 to rotate on the two first hinge seats 4 respectively. Multiple sliders 6 move relative to each other, causing the two first damping springs 8 to compress or extend. The setting of the two first damping springs 8 makes the multiple sliders 6 more stable, allowing multiple sliding columns 10 to slide within their corresponding stabilizing columns 9. Multiple second damping springs 11 work together to provide shock absorption. The movement of the bridge bearing 2 causes the two fixed plates 13 to compress the multiple first telescopic columns 14, thereby compressing or extending the multiple first telescopic columns 14 and multiple third damping springs 15, thus reducing the vibration of the bridge bearing 2, providing support and shock absorption, and making the bridge bearing 2 more stable.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A seismic limiting and buffering device for bridge bearings, comprising a bridge bearing (2) and a base plate (3), characterized in that: A bridge plate (1) is fixedly installed on the bridge support (2), and the bridge support (2) and the base plate (3) are connected by a shock absorption and buffer mechanism; The shock absorption mechanism includes two support plates (5), two first hinge seats (4) are symmetrically fixedly installed at the bottom end of the bridge bearing (2), the two support plates (5) are rotatably connected to the two first hinge seats (4) respectively, two sliding grooves are symmetrically opened on the bottom plate (3), two sliders (6) are slidably installed in the two sliding grooves respectively, the two sliders (6) on the same side are connected by the first shock absorption spring (8), a second hinge seat (7) is fixedly installed on each slider (6), the two ends of the two support plates (5) are respectively hinged to the four second hinge seats (7), four stabilizing columns (9) are symmetrically fixedly installed on the bottom plate (3), a sliding column (10) is fixedly installed in each of the four stabilizing columns (9), the other end of the four sliding columns (10) is fixedly connected to the bridge bearing (2), a plurality of second shock absorption springs (11) are fixedly installed on each of the four stabilizing columns (9), and the other end of each second shock absorption spring (11) is fixedly connected to the bottom end of the bridge bearing (2); A stabilizing mechanism is provided on the base plate (3) for vibration reduction and stabilization of the bridge bearing (2).
2. The seismic limiting and buffering device for bridge bearings according to claim 1, characterized in that: The stabilizing mechanism includes a protective box (12), which is fixedly installed on the base plate (3). Two fixed plates (13) are symmetrically fixedly installed on the bridge support (2). A first telescopic column (14) is symmetrically fixedly installed on each of the two fixed plates (13). The other end of each first telescopic column (14) is fixedly connected to the base plate (3). A third shock-absorbing spring (15) is fitted on each first telescopic column (14). The two ends of each third shock-absorbing spring (15) are fixedly connected to the fixed plate (13) and the base plate (3) respectively.
3. The seismic limiting and buffering device for bridge bearings according to claim 2, characterized in that: The bottom end of the bridge support (2) is fixedly installed with a second telescopic column (16), the second telescopic column (16) is fixedly connected to the base plate (3), and a fourth shock-absorbing spring (17) is fitted on the second telescopic column (16). The two ends of the fourth shock-absorbing spring (17) are fixedly connected to the bridge support (2) and the base plate (3) respectively.
4. The seismic limiting and buffering device for bridge bearings according to claim 3, characterized in that: Two stabilizing telescopic rods (18) are symmetrically fixedly installed on the bridge support (2), and the other end of each of the two stabilizing telescopic rods (18) is fixedly connected to the base plate (3).
5. A seismic limiting and buffering device for bridge bearings according to claim 4, characterized in that: Limiting rods (19) are fixedly installed on both of the slides, and the four sliders (6) are slidably connected to the corresponding two limiting rods (19).
6. A seismic limiting and buffering device for bridge bearings according to claim 5, characterized in that: The outer wall of the protective box (12) is coated with anti-rust paint.