Bridge support with multi-damping seismic isolation characteristic

Abstract

The invention relates to a bridge support with multi-damping seismic isolation characteristic, which comprises a bottom plate, a connecting plate and a support body, the connecting plate is mounted above the bottom plate, the support body is mounted above the connecting plate, and a damping component convenient for damping and buffering the support body is mounted between the connecting plate and the support body. The damping assembly comprises a sleeve and a first damping spring, and adjusting assemblies facilitating adjustment of the height of the support body are installed on the two sides of the bottom plate. Through the arrangement of the damping assembly, multiple damping buffering can be conducted on the support body, the damping effect is improved, through the arrangement of the adjusting assembly, the height of the support body can be conveniently adjusted, construction and maintenance requirements of different bridges are met, and universality and flexibility are improved; the problems that some existing vibration isolation supports are difficult in height adjustment according to actual conditions, supports with fixed heights cannot effectively adapt to dynamic changes of a bridge, and uneven stress or vibration of the bridge structure may be caused are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge seismic isolation, and in particular to a bridge bearing with multi-damping seismic isolation characteristics. Background Art

[0002] To mitigate the adverse effects of bridge vibration, seismic isolation bearings are widely used in bridge engineering. Their primary function is to absorb and cushion external shocks through their deformation, thereby reducing the vibration energy transmitted to the bridge structure. Traditional isolation bearings primarily include rubber bearings and lead-rubber bearings.

[0003] The shock absorption effect of traditional rubber bearings is limited and cannot meet the shock absorption needs of high-intensity earthquake zones or special bridges. Some existing seismic isolation bearings are difficult to adjust in height according to actual conditions. Under different foundation conditions, bridge service life and external environmental changes, fixed-height bearings cannot effectively adapt to the dynamic changes of the bridge, which may cause uneven stress or vibration in the bridge structure. Summary of the Invention

[0004] In view of the technical problems in the prior art that traditional rubber bearings have limited shock absorption effects and are difficult to adjust in height according to actual conditions, the present invention provides a bridge bearing with multi-damping seismic isolation characteristics.

[0005] The technical solution adopted by the present invention is: a bridge bearing with multi-damping seismic isolation characteristics, including a base plate, a connecting plate and a bearing body, the connecting plate is installed above the base plate, the bearing body is installed above the connecting plate, and a shock-absorbing component is installed between the connecting plate and the bearing body to facilitate shock absorption and buffering of the bearing body. The shock-absorbing component includes a telescopic sleeve and a first damping spring. Adjustment components are installed on both sides of the base plate to facilitate adjusting the height of the bearing body. The setting of the shock-absorbing component can perform multiple shock absorption and buffering on the bearing body to improve the shock absorption effect. The adjustment component can easily adjust the height of the bearing body to adapt to the construction and maintenance requirements of different bridges, thereby improving the versatility and flexibility of the bearing.

[0006] Furthermore, there are four telescopic sleeves and they are distributed in a rectangular array and fixedly installed above the connecting plate. The top plates of the four telescopic sleeves are fixedly connected to the lower surface of the support body. The first damping springs are respectively fixedly installed inside the four telescopic sleeves. Through the setting of the telescopic sleeve and the first damping spring, it can quickly respond to external impacts and effectively absorb and buffer vibration energy.

[0007] Furthermore, the shock-absorbing assembly also includes a mounting groove provided on the surface of the connecting plate, a fixed rod is fixedly installed inside the mounting groove, and two symmetrical sliding blocks are slidably connected to the surface of the fixed rod, and the two sliding blocks are slidably connected to the inside of the mounting groove. A hinged rod is hinged above the two sliding blocks, and the two hinged rods are hinged to the two sides of the lower surface of the support body. A second damping spring is fixedly installed between the two sliding blocks, and the support body moves downward and drives the sliding blocks on both sides to move toward each other through the hinged rods on both sides, and the support body is further shock-absorbing and buffered by the second damping spring to improve the shock-absorbing effect.

[0008] Furthermore, a connecting frame is fixedly installed above the connecting plate, and the support body is slidably connected to the inside of the connecting frame. The setting of the connecting frame ensures stable sliding of the support body in the vertical direction, prevents horizontal deviation, and improves the reliability of the shock absorption effect.

[0009] Furthermore, the adjustment component includes two symmetrical mounting plates fixedly mounted on both sides of the base plate, motors are fixedly mounted on the surfaces of the mounting plates on both sides, threaded rods are fixedly mounted on the output ends of the motors, the threaded rods are rotatably connected between the two mounting plates on the same side, the surfaces of the threaded rods are threadedly connected to two moving blocks with opposite threads, the upper and lower sides of the two moving blocks are hinged with connecting rods, the upper two side connecting rods are hinged to the center of one side of the connecting plate, and the lower two side connecting rods are hinged to the center of one side of the base plate, and the motor drives the threaded rods to achieve precise height adjustment of the support body to meet the construction and maintenance requirements of different bridges.

[0010] Furthermore, multiple telescopic rods are fixedly installed above the base plate, and the top plates of the multiple telescopic rods are fixedly connected to the lower surface of the connecting plate, which enhances the structural stability of the entire support system and improves the reliability and safety of the support under different working conditions.

[0011] Furthermore, four ground spikes distributed in a rectangular array are fixedly installed on the lower surface of the base plate, ensuring a firm connection between the base plate and the ground, preventing the support from displacement under vibration or impact, and improving the stability and reliability of the support.

[0012] Furthermore, it also includes a matching buffer assembly, which includes an elastic support spring, a combining plate and a matching damping device. The elastic support spring is sheathed on the telescopic sleeve and the first damping spring and is fixed on the connecting plate. The combining plate is fixedly supported on the upper end of the elastic support spring. The combining plate is constructed to be able to combine with the top plate of the telescopic sleeve during the process of the telescopic sleeve being pressed downward; the transmission input end of the matching damping device is connected to the combining plate through a movable connecting rod so that the vertical movement of the combining plate is converted into the lateral linear movement of the movable component in the matching damping device.

[0013] Furthermore, the coordinated damping device is an oil damper.

[0014] Furthermore, a twistable engaging hook is provided on the top plate of the telescopic sleeve, and a engaging groove capable of forming an engaging connection with the engaging hook is provided on the coupling plate.

[0015] The beneficial effects of the present invention are:

[0016] 1. The present invention can perform multiple shock absorption and buffering on the support body through the setting of the shock absorption component, thereby improving the shock absorption effect and solving the problem that the shock absorption effect of the support is limited and cannot meet the shock absorption requirements of high-intensity earthquake areas or special bridges.

[0017] 2. Secondly, the present invention can conveniently adjust the height of the bearing body through the setting of the adjustment component to adapt to the construction and maintenance requirements of different bridges, improve versatility and flexibility, and solve the problem that some existing vibration isolation bearings are difficult to adjust the height according to actual conditions. Under different foundation conditions, bridge service life and external environmental changes, fixed height bearings cannot effectively adapt to the dynamic changes of the bridge, which may cause uneven stress or vibration in the bridge structure.

[0018] The present invention is disclosed in detail below with reference to the embodiments shown in the drawings and the reference numerals. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall diagram of the present invention;

[0020] Figure 2 is a cross-sectional view of a shock absorbing assembly of the present invention;

[0021] Figure 3 is a perspective view of the adjustment assembly of the present invention;

[0022] Figure 4 It is a structural diagram of another embodiment of the present invention.

[0023] The markings in the figure are: 1. Base plate; 2. Connecting plate; 3. Support body; 4. Shock-absorbing assembly; 401. Telescopic sleeve; 402. First damping spring; 403. Mounting slot; 404. Fixed rod; 405. Sliding block; 406. Hinge rod; 407. Second damping spring; 408. Connecting frame; 409. Cooperative damping device; 410. Piston; 411. Combining plate; 412. Slot; 413. Engaging hook; 414. Movable connecting rod; 415 Elastic support spring; 5. Adjusting assembly; 501. Mounting plate; 502. Motor; 503. Threaded rod; 504. Moving block; 505. Connecting rod; 506. Telescopic rod; 6. Ground nail. DETAILED DESCRIPTION

[0024] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0025] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0026] Figure 1 Shows the overall diagram of the present invention. Figure 1-Figure 3 The present invention is further described.

[0027] In order to solve the problems existing in the background technology, the present application proposes the following technical solution: a bridge bearing with multi-damping seismic isolation characteristics.

[0028] The specific technical solution includes a base plate 1, a connecting plate 2 and a support body 3. The connecting plate 2 is installed above the base plate 1, and the support body 3 is installed above the connecting plate 2. A shock-absorbing component 4 is installed between the connecting plate 2 and the support body 3 to facilitate shock absorption and buffering of the support body 3. The shock-absorbing component 4 includes a telescopic sleeve 401 and a first damping spring 402. Adjustment components 5 are installed on both sides of the base plate 1 to facilitate adjusting the height of the support body 3. The setting of the shock-absorbing component 4 can perform multiple shock absorption and buffering on the support body 3 to improve the shock absorption effect. The adjustment component 5 can easily adjust the height of the support body 3 to adapt to the construction and maintenance requirements of different bridges, thereby improving versatility and flexibility.

[0029] Reference Figure 1 and Figure 2As shown, there are four telescopic sleeves 401 distributed in a rectangular array and fixedly installed above the connecting plate 2. The top plates of the four telescopic sleeves 401 are fixedly connected to the lower surface of the support body 3. The first damping springs 402 are fixedly installed inside the four telescopic sleeves 401 respectively. The shock absorbing assembly 4 also includes a mounting groove 403 opened on the surface of the connecting plate 2. A fixed rod 404 is fixedly installed inside the mounting groove 403. The surface of the fixed rod 404 is slidably connected to two symmetrical sliding blocks 405. The two sliding blocks 405 are slidably connected to the inside of the mounting groove 403. A hinged rod 406 is hinged above the two sliding blocks 405. The two hinged rods 406 are hinged to the top of the two sliding blocks 405. The rod 406 is hinged to both sides of the lower surface of the support body 3, and a second damping spring 407 is fixedly installed between the two sliding blocks 405. A connecting frame 408 is fixedly installed above the connecting plate 2, and the support body 3 is slidably connected to the inside of the connecting frame 408. Through the setting of the telescopic sleeve 401 and the first damping spring 402, the impact from the top of the support body 3 can be effectively absorbed, and the shock absorption effect can be improved. When the support body 3 is impacted and moves downward, the setting of the hinged rods 406 on both sides drives the sliding blocks 405 on both sides to move toward each other. Through the setting of the second damping spring 407, the support body 3 can be further shock-absorbing and buffered, thereby improving the shock absorption effect.

[0030] Reference Figure 1 and Figure 3 As shown, the adjustment assembly 5 includes two symmetrical mounting plates 501 fixedly mounted on both sides of the base plate 1, and motors 502 are fixedly mounted on the surfaces of the mounting plates 501 on both sides. A threaded rod 503 is fixedly mounted on the output end of the motor 502. The threaded rod 503 is rotatably connected between the two mounting plates 501 on the same side, and the surface of the threaded rod 503 is threadedly connected to two moving blocks 504 with opposite threads. The upper and lower sides of the two moving blocks 504 are hinged with connecting rods 505. The upper two side connecting rods 505 are hinged to the center of one side of the connecting plate 2, and the lower two side connecting rods 50 5 are hinged to the center of one side of the base plate 1. Multiple telescopic rods 506 are fixedly mounted above the base plate 1. The top plates of the telescopic rods 506 are fixedly connected to the lower surface of the connecting plate 2. Four ground spikes 6 arranged in a rectangular array are fixedly mounted to the lower surface of the base plate 1. A motor 502 drives the threaded rod 503 to rotate, causing the two moving blocks 504 to move toward or in opposite directions. Connecting rods 505 are hinged to the upper and lower sides of the moving blocks 504. The upper connecting rod 505 is hinged to the center of one side of the connecting plate 2, while the lower connecting rod 505 is hinged to the center of one side of the base plate 1. As the moving blocks 504 move, the connecting rods 505 push upward or pull downward on the connecting plate 2, thereby adjusting the height of the support body 3.

[0031] To enable those skilled in the art to fully understand the technical solution, this application provides the following overall overview:

[0032] When in use, the support body 3 should first be fixed in the specified position by the ground nail 6, and then the motor 502 should be started to drive the threaded rod 503 to rotate, so that the two moving blocks 504 move toward each other or in opposite directions. As the moving block 504 moves, the connecting rod 505 will push up or pull down the connecting plate 2 to adjust the height of the support body 3. Through the setting of the telescopic sleeve 401 and the first damping spring 402, the impact from the top of the support body 3 can be effectively absorbed to improve the shock absorption effect. When the support body 3 is impacted and moves downward, the sliding blocks 405 on both sides are driven to move toward each other through the setting of the hinged rods 406 on both sides. Through the setting of the second damping spring 407, the support body 3 can be further shock-absorbing and buffered to improve the shock absorption effect.

[0033] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0034] Combine Figure 4 As shown, the present invention discloses another embodiment of a bridge support, which is Figure 2 Compared with the shock absorbing assembly shown in FIG, the difference is that a matching buffer assembly is used instead of the shock absorbing mechanism consisting of the hinge rod, the sliding block, the second damping spring and the fixed rod.

[0035] Specifically, if Figure 4 As shown, the present invention also includes a matching buffer assembly, which includes an elastic support spring 415, a combining plate 411 and a matching damping device 409. The elastic support spring 415 is sheathed on the telescopic sleeve 401 and the first damping spring 402 and fixed on the connecting plate 2. The combining plate 411 is fixedly supported on the upper end of the elastic support spring 415. The combining plate 411 is constructed to be able to combine with the top plate of the telescopic sleeve 401 during the process of the telescopic sleeve 401 being pressed downward; the transmission input end of the matching damping device 409 is connected to the combining plate 411 through a movable connecting rod 414 to convert the vertical movement of the combining plate 411 into the lateral linear movement of the movable component in the matching damping device 409.

[0036] The cooperating damping device 409 is an oil damper. An oil damper is a damper that uses pores and oil to create damping. For example, the movement of a piston within the damper's cylinder causes the damping oil to flow back and forth within different chambers of the cylinder, thereby creating a damping effect. This structure can be an existing one and will not be described in detail here.

[0037] Furthermore, a twistable hook 413 is provided on the top plate of the telescopic sleeve 401, and a slot 412 is provided on the coupling plate 411, capable of engaging with the hook 413. The hook 413 is mounted on the side of the top plate of the telescopic sleeve 401 via a torsion spring and can twist outward relative to the top plate. This structure allows the telescopic sleeve 401 to automatically connect to the coupling plate 411 after being compressed to a certain distance.

[0038] When the vertical load borne by the support is small, the damping structure composed of the telescopic sleeve 401 and the first damping spring 402 can be used for earthquake resistance. When the vertical load borne by the support is large, the downward displacement of the telescopic sleeve 401 can form a snap connection between the connecting plate 411 and the snap hook 413, so that the top plate of the telescopic sleeve 401 and the connecting plate 411 are formed into one. At this time, the compression of the elastic support spring 415 by the connecting plate 411 can form damping and earthquake resistance, and the vertical movement of the connecting plate 411 can be converted into the lateral linear movement of the movable component (i.e., the piston 410) of the damping device 409 by the action of the connecting rod, so that the damping device 409 can perform lateral damping and earthquake resistance.

[0039] By means of the matching buffer assembly, the applicable working condition range of the bridge bearing of the present invention is further expanded, and effective and stable earthquake resistance can be achieved.

[0040] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0041] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0042] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0043] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A bridge bearing with multi-damping seismic isolation characteristics, characterized in that: The invention comprises a base plate (1), a connecting plate (2) and a support body (3), wherein the connecting plate (2) is mounted above the base plate (1), and the support body (3) is mounted above the connecting plate (2). A shock absorbing assembly (4) is mounted between the connecting plate (2) and the support body (3) for facilitating shock absorption and buffering of the support body (3), and the shock absorbing assembly (4) comprises a telescopic sleeve (401) and a first damping spring (402). Adjustment assemblies (5) are mounted on both sides of the base plate (1) for facilitating height adjustment of the support body (3).

2. The bridge bearing with multi-damping seismic isolation characteristics according to claim 1, characterized in that: The number of the telescopic sleeves (401) is four and they are distributed in a rectangular array and fixedly installed above the connecting plate (2); the top plates of the four telescopic sleeves (401) are fixedly connected to the lower surface of the support body (3); and the first damping springs (402) are respectively fixedly installed inside the four telescopic sleeves (401).

3. The bridge bearing with multi-damping seismic isolation characteristics according to claim 1, characterized in that: The shock absorbing assembly (4) further comprises a mounting groove (403) provided on the surface of the connecting plate (2), a fixing rod (404) being fixedly mounted inside the mounting groove (403), two symmetrical sliding blocks (405) being slidably connected to the surface of the fixing rod (404), both of the two sliding blocks (405) being slidably connected to the inside of the mounting groove (403), a hinge rod (406) being hinged above the two sliding blocks (405), the two hinge rods (406) being hinged to both sides of the lower surface of the support body (3), and a second damping spring (407) being fixedly mounted between the two sliding blocks (405).

4. The bridge bearing with multi-damping seismic isolation characteristics according to claim 1, characterized in that: A connection frame (408) is fixedly installed above the connection plate (2), and the support body (3) is slidably connected to the inside of the connection frame (408).

5. The bridge bearing with multi-damping seismic isolation characteristics according to claim 1, characterized in that: The adjustment assembly (5) comprises two symmetrical mounting plates (501) fixedly mounted on both sides of the base plate (1); motors (502) are fixedly mounted on the surfaces of the mounting plates (501) on both sides; a threaded rod (503) is fixedly mounted on the output end of the motor (502); the threaded rod (503) is rotatably connected between the two mounting plates (501) on the same side; two moving blocks (504) with opposite threads are threadedly connected on the surface of the threaded rod (503); connecting rods (505) are hinged on the upper and lower sides of the two moving blocks (504); the connecting rods (505) on the upper and lower sides are hinged to the center of one side of the connecting plate (2), and the connecting rods (505) on the lower and lower sides are hinged to the center of one side of the base plate (1).

6. The bridge bearing with multi-damping seismic isolation characteristics according to claim 1, characterized in that: A plurality of telescopic rods (506) are fixedly mounted above the base plate (1), and the top plates of the plurality of telescopic rods (506) are fixedly connected to the lower surface of the connecting plate (2).

7. The bridge bearing with multi-damping seismic isolation characteristics according to claim 1, characterized in that: Four ground spikes (6) distributed in a rectangular array are fixedly mounted on the lower surface of the base plate (1).

8. The bridge bearing with multi-damping seismic isolation characteristics according to claim 1, characterized in that: The invention also includes a matching buffer assembly, the matching buffer assembly including an elastic support spring, a coupling plate and a matching damping device, the elastic support spring is sheathed on the telescopic sleeve and the first damping spring and fixed on the connecting plate, the coupling plate is fixedly supported on the upper end of the elastic support spring, and the coupling plate is configured to be coupled with the top plate of the telescopic sleeve when the telescopic sleeve is pressed downward; The transmission input end of the matching damping device is connected to the combining plate through a movable connecting rod, so that the vertical movement of the combining plate is converted into the horizontal linear movement of the movable component in the matching damping device.

9. The bridge bearing with multi-damping seismic isolation characteristics according to claim 8, characterized in that: The matched damping device is an oil damper.

10. The bridge bearing with multi-damping seismic isolation characteristics according to claim 9, characterized in that: The top plate of the telescopic sleeve is provided with a twistable engaging hook, and the combining plate is provided with a engaging groove capable of forming an engaging connection with the engaging hook.

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