Upper-layer beam bridge bearing structure of bridge

Abstract

The utility model discloses a bridge upper layer beam bridge bearing structure which comprises a bridge pier, a bridge floor is arranged at the upper end of the bridge pier, a bearing mechanism is arranged between the bridge floor and the bridge pier, the bearing mechanism comprises a bottom plate, a top plate, a middle plate, a vertical direction buffering device and a horizontal direction buffering device, and the bottom plate is fixedly arranged at the upper end of the bridge pier. A top plate is fixedly arranged at the lower end of the bridge floor, a middle plate is arranged between the top plate and the bottom plate, a vertical buffering device is arranged between the top plate and the middle plate, and a horizontal buffering device is arranged between the bottom plate and the middle plate. The bearing mechanism provided by the utility model can provide excellent multi-directional shock absorption, can improve excellent bearing capacity, and also can effectively consume the effects of vibration generated by a vehicle and earthquake vibration, so that the use safety of a bridge can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge bearing structures, in particular to an upper beam bridge bearing structure. Background Art

[0002] A bridge is a structure used to cross obstacles such as valleys, rivers, roads, etc.

[0003] A pier or an arched supporting structure is generally arranged at its lower end, and then a bridge deck is arranged at the upper end of the pier or the arched supporting structure. In the prior art, a shock-absorbing structure is generally arranged at the connection between the pier and the bridge deck to resist earthquakes and reduce the impact of earthquakes on the bridge structure, reduce damage and improve safety: ensure the stability of the bridge in normal use and in disaster situations, and reduce resonance to avoid resonance of the bridge at a specific frequency, which may lead to structural damage.

[0004] Common bearing connection methods include rubber bearings and damping bearings, which use dampers, shock absorbers, etc. to absorb and consume vibration energy. For example, the Chinese patent application number 202021606617.5 discloses a bridge shock-absorbing bearing, which connects the bridge deck and the bridge piers to buffer and absorb the vibration energy. However, when an earthquake or resonance occurs, the bridge deck may also be vibrated by forces in other radial directions. Therefore, the effect of the building bearing that can only absorb the vibration energy is poor. Therefore, an improvement in the upper beam bridge bearing structure is needed to address this problem. Utility Model Content

[0005] The utility model aims to provide a bridge upper beam bridge bearing structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bridge upper beam bridge bearing structure, including bridge piers, a bridge deck is arranged at the upper end of the bridge piers, a bearing mechanism is arranged between the bridge deck and the bridge piers, the bearing mechanism includes a bottom plate, a top plate, an intermediate plate, a vertical buffer device, and a horizontal buffer device, the bottom plate is fixedly arranged at the upper end of the piers, the top plate is fixedly arranged at the lower end of the bridge deck, an intermediate plate is arranged between the top plate and the bottom plate, a vertical buffer device is arranged between the top plate and the intermediate plate, and a horizontal buffer device is arranged between the bottom plate and the intermediate plate.

[0007] Preferably, the vertical buffer device includes a first buffer damping cylinder, a first spring, and a telescopic seat. A plurality of first buffer damping cylinders are evenly and fixedly arranged between the top plate and the middle plate. A first spring is sleeved on the outer surface of the first buffer damping cylinder. A telescopic seat is fixedly arranged between the top plate and the middle plate. Through vertical buffering, numerical buffering and shock absorption can be performed as in the prior art, so as to protect the entire bridge body.

[0008] Preferably, the horizontal direction buffer device includes a base, a support column, a first universal joint, a second universal joint, a second buffer damping cylinder, and a second spring. The base is fixedly arranged in the middle of the upper end of the bottom plate, and the support column is fixedly arranged in the middle of the lower end of the intermediate plate. A plurality of first universal joints are evenly and movably arranged on the upper surface of the bottom plate around the base, and a plurality of second universal joints are evenly and movably arranged on the outer surface of the lower end of the intermediate plate around the support column. A second buffer damping cylinder is fixedly arranged between the first universal joint and the second universal joint, and a second spring is sleeved on the outer surface of the second buffer damping cylinder. The horizontal direction buffer device can provide a damping effect at any angle in the horizontal direction for the bridge deck. During buffering, the bridge deck and the support column can slide along the base and can move in multiple directions. The corresponding first universal joint and the second universal joint can automatically rotate and adjust following the movement of the support column, and cooperate with the second buffer damping cylinder to expand and contract to adapt to the movement of the support column. After the vibration disappears, the second buffer damping cylinder can be pushed to reset under the action of the second spring, and the support column is reset to the center (in the middle of the base).

[0009] Preferably, the outer surfaces of the bottom plate and the top plate are provided with mounting holes, through which the bottom plate and the bridge pier can be conveniently fixed and installed, and the top plate and the lower end of the bridge deck can be conveniently fixed and installed.

[0010] Preferably, the outer surface of the lower end of the support column fits with the outer surface of the base, and the outer surface of the upper end of the base is an arc surface, and the outer surface of the lower end of the support column fits with the outer surface of the base. This allows the support column to provide vertical support force for the horizontal buffer device, and when vibration occurs, the support column is allowed to slide in all directions on the outer surface of the base under the action of the vibration. It should be noted that the surface of the base is a slight arc surface with a small slope, which does not affect the sliding of the support column on the outer side of the base. When the vibration disappears, the downward force can help the second spring drive the support column to reset at the upper end of the base, so that the support column is reset to the middle of the upper end of the base; (due to the heavy weight of the bridge deck, it may not be reset by relying solely on the second spring).

[0011] Preferably, a rubber sleeve is fixedly provided between the upper end of the base and the support column, and lubricating oil is filled between the upper end of the base and the rubber sleeve. The rubber sleeve allows a closed space to be formed between the base and the support column, which can be used to store lubricating oil to lubricate the contact surface between the support column and the base, so as to reduce friction loss when the support column slides; at the same time, since the rubber sleeve is arranged to wrap around the outer surface of the support column, the elasticity of the rubber sleeve itself will not affect the movement of the support column.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model can play a role in vertical shock absorption, and at the same time, can provide a damping and buffering effect at any angle in the horizontal direction for the bridge deck through the horizontal buffer device; during buffering, the bridge deck and the support column can slide along the base and can move in multiple directions, and the corresponding first universal joint and second universal joint can automatically rotate and adjust following the movement of the support column, and cooperate with the second buffer damping oil cylinder to expand and contract to adapt to the movement of the support column, and stretch or squeeze the second spring, and after the vibration disappears, the second buffer damping oil cylinder can be pushed to reset under the action of the second spring, so that the kinetic energy of the vibration can be converted into heat energy of friction by utilizing the expansion and contraction of the second buffer damping oil cylinder and the damping oil inside; in this way, it can play a role in buffering horizontal vibration.

[0014] 2. The surface of the base of the utility model is a slightly curved surface, which does not affect the sliding of the support column on the outside of the base. When the vibration disappears, the downward force can help the second spring drive the support column to reset at the upper end of the base, so that the support column is reset in the middle of the upper end of the base.

[0015] 3. When the utility model is in use, a closed space can be formed between the base and the support column through the rubber sleeve, so that it can be used to store lubricating oil to lubricate the contact surface between the support column and the base, so as to reduce the friction loss when the support column slides; at the same time, because the rubber sleeve is arranged to wrap around the outer surface of the support column, the elasticity of the rubber sleeve itself will not affect the movement of the support column. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the upper beam bridge bearing structure of the utility model;

[0017] Figure 2 This is a front view of the overall structure of the upper beam bridge bearing structure of the utility model;

[0018] Figure 3 This is an overall structural view of a load-bearing mechanism in a load-bearing structure of an upper beam bridge of the utility model;

[0019] Figure 4 The utility model is a bridge upper beam bridge bearing structure Figure 3 Bottom view of

[0020] Figure 5 The utility model is a bridge upper beam bridge bearing structure Figure 3 A cross-sectional view of

[0021] Figure 6 This is an installation view of a support column and a base in a load-bearing structure of an upper beam bridge of the utility model;

[0022] Figure 7 The utility model is a bridge upper beam bridge bearing structure Figure 2 Magnified view at A in the middle.

[0023] In the figure: 1. bridge pier; 2. bridge deck; 3. bottom plate; 4. top plate; 5. middle plate; 6. vertical buffer device; 601. first buffer damping cylinder; 602. first spring; 603. telescopic seat; 7. horizontal buffer device; 701. support column; 702. base; 703. first universal joint; 704. second universal joint; 705. second buffer damping cylinder; 706. second spring; 8. mounting hole; 9. rubber sleeve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-7 The utility model provides a technical solution: a bridge upper beam bridge bearing structure, including a pier 1, a bridge deck 2 is arranged on the upper end of the pier 1, a bearing mechanism is arranged between the bridge deck 2 and the pier 1, the bearing mechanism includes a bottom plate 3, a top plate 4, an intermediate plate 5, a vertical buffer device 6, and a horizontal buffer device 7, the bottom plate 3 is fixedly arranged on the upper end of the pier 1, the top plate 4 is fixedly arranged on the lower end of the bridge deck 2, the intermediate plate 5 is arranged between the top plate 4 and the bottom plate 3, the vertical buffer device 6 is arranged between the top plate 4 and the intermediate plate 5, and the horizontal buffer device 7 is arranged between the bottom plate 3 and the intermediate plate 5.

[0026] The vertical direction buffer device 6 includes a first buffer damping oil cylinder 601, a first spring 602, and a telescopic seat 603. A plurality of first buffer damping oil cylinders 601 are evenly and fixedly arranged between the top plate 4 and the middle plate 5. The first spring 602 is sleeved on the outer surface of the first buffer damping oil cylinder 601. A telescopic seat 603 is fixedly arranged between the top plate 4 and the middle plate 5. Through vertical direction buffering, the buffering and shock absorption in the numerical direction can be performed as in the prior art, so as to protect the entire bridge body.

[0027] The horizontal direction buffer device 7 includes a base 702, a support column 701, a first universal joint 703, a second universal joint 704, a second buffer damping oil cylinder 705, and a second spring 706. The base 702 is fixedly arranged in the middle of the upper end of the bottom plate 3, and the support column 701 is fixedly arranged in the middle of the lower end of the intermediate plate 5. A plurality of first universal joints 703 are evenly and movably arranged on the upper end surface of the bottom plate 3 around the base 702, and a plurality of second universal joints 704 are evenly and movably arranged on the outer side surface of the lower end of the intermediate plate 5 around the support column 701. A second buffer damping oil cylinder 705 is fixedly arranged between the first universal joint 703 and the second universal joint 704. The outer surface of 05 is sleeved with a second spring 706, which can provide a damping effect at any angle in the horizontal direction for the bridge deck 2 through the horizontal buffer device 7; during buffering, the bridge deck 2 and the support column 701 can slide along the base 702, and can move in multiple directions. The corresponding first universal joint 703 and the second universal joint 704 can automatically rotate and adjust following the movement of the support column 701, and cooperate with the second buffer damping oil cylinder 705 to expand and contract to adapt to the movement of the support column 701. After the vibration disappears, the second buffer damping oil cylinder 705 can be pushed to reset under the action of the second spring 706, and the support column 701 can be reset to the center (in the middle of the base 702);

[0028] The outer surfaces of the bottom plate 3 and the top plate 4 are both provided with mounting holes 8, through which the bottom plate 3 and the bridge pier 1 can be conveniently fixed and installed, and the top plate 4 and the lower end of the bridge deck 2 can be conveniently fixed and installed;

[0029] The outer surface of the lower end of the support column 701 fits with the outer surface of the base 702, and the outer surface of the upper end of the base 702 is an arc surface, through which the outer surface of the lower end of the support column 701 fits with the outer surface of the base 702. The support column 701 can provide vertical support force for the horizontal buffer device 7, and when vibration occurs, the support column 701 is allowed to slide in all directions on the outer surface of the base 702 under the action of the vibration. It should be noted that at this time, the surface of the base 702 is a slight arc surface with a small slope, which does not affect the sliding of the support column 701 on the outer side of the base 702. When the vibration disappears, the downward force can help the second spring 706 drive the support column 701 to reset at the upper end of the base 702, so that the support column 701 is reset to the middle of the upper end of the base 702; (due to the heavy weight of the bridge deck 2, it may not be reset by relying solely on the second spring 706);

[0030] A rubber sleeve 9 is fixedly arranged between the upper end of the base 702 and the support column 701, and lubricating oil is filled between the upper end of the base 702 and the rubber sleeve 9. The rubber sleeve 9 allows a closed space to be formed between the base 702 and the support column 701, so that the lubricating oil can be used to store the contact surface between the support column 701 and the base 702 to reduce the friction loss when the support column 701 slides. At the same time, since the rubber sleeve 9 is arranged to wrap around the outer surface of the support column 701, the elasticity of the rubber sleeve 9 itself will not affect the movement of the support column 701.

[0031] Working principle: When using this device, the bridge pier 1 can be connected to the wall through the bearing mechanism. At the same time, the bearing mechanism can not only play a bearing role, but also play a role in buffering and shock absorption;'

[0032] Through the vertical direction buffer device 6 in the bearing mechanism, when subjected to vertical vibration, the first buffer damping oil cylinder 601 and the telescopic seat 603 can be extended and retracted within a certain range, thus providing vibration buffering space, and with the extension and retraction of the first buffer damping oil cylinder 601, the internal damping oil can be used to convert the kinetic energy of vibration into heat energy of friction; thus, the vertical vibration can be buffered;

[0033] As for the vibration in the horizontal direction, the horizontal buffer device 7 can provide the bridge deck 2 with a damping effect at any angle in the horizontal direction. During buffering, the bridge deck 2 and the support column 701 can slide along the base 702 and can move in multiple directions. The corresponding first universal joint 703 and the second universal joint 704 can automatically rotate and adjust following the movement of the support column 701, and cooperate with the second buffer damping oil cylinder 705 to expand and contract to adapt to the movement of the support column 701, and stretch or squeeze the second spring 706. After the vibration disappears, the second buffer damping oil cylinder 705 can be pushed to reset under the action of the second spring 706, and the support column 701 can be reset to the center (in the middle of the base 702); similarly, the expansion and contraction of the second buffer damping oil cylinder 705 and the damping oil inside can convert the kinetic energy of vibration into heat energy of friction; this can play a role in buffering the vibration in the horizontal direction.

[0034] When the device is used, the surface of the base 702 is a slightly curved surface with a small slope, which does not affect the sliding of the support column 701 on the outside of the base 702. When the vibration disappears, the downward force can help the second spring 706 drive the support column 701 to reset at the upper end of the base 702, so that the support column 701 is reset to the middle of the upper end of the base 702;

[0035] When the device is in use, the rubber sleeve 9 allows a closed space to be formed between the base 702 and the support column 701, so that it can be used to store lubricating oil to lubricate the contact surface between the support column 701 and the base 702, so as to reduce the friction loss when the support column 701 slides; at the same time, because the rubber sleeve 9 is arranged to wrap around the outer surface of the support column 701, the elasticity of the rubber sleeve 9 itself will not affect the movement of the support column 701.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bridge upper beam bearing structure, comprising a bridge pier (1), characterized in that: A bridge deck (2) is arranged at the upper end of the bridge pier (1), a bearing mechanism is arranged between the bridge deck (2) and the bridge pier (1), and the bearing mechanism comprises a bottom plate (3), a top plate (4), an intermediate plate (5), a vertical buffer device (6), and a horizontal buffer device (7). The bottom plate (3) is fixedly arranged at the upper end of the bridge pier (1), the top plate (4) is fixedly arranged at the lower end of the bridge deck (2), an intermediate plate (5) is arranged between the top plate (4) and the bottom plate (3), a vertical buffer device (6) is arranged between the top plate (4) and the intermediate plate (5), and a horizontal buffer device (7) is arranged between the bottom plate (3) and the intermediate plate (5).

2. The upper beam bridge bearing structure of a bridge according to claim 1, characterized in that: The vertical direction buffer device (6) comprises a first buffer damping oil cylinder (601), a first spring (602), and a telescopic seat (603); a plurality of first buffer damping oil cylinders (601) are evenly and fixedly arranged between the top plate (4) and the middle plate (5); a first spring (602) is sleeved on the outer surface of the first buffer damping oil cylinder (601); and a telescopic seat (603) is fixedly arranged between the top plate (4) and the middle plate (5).

3. The upper beam bridge bearing structure of a bridge according to claim 1, characterized in that: The horizontal direction buffer device (7) comprises a base (702), a support column (701), a first universal joint (703), a second universal joint (704), a second buffer damping oil cylinder (705), and a second spring (706); the base (702) is fixedly arranged in the middle of the upper end of the bottom plate (3); the support column (701) is fixedly arranged in the middle of the lower end of the intermediate plate (5); a plurality of first universal joints (703) are evenly and movably arranged on the upper end surface of the bottom plate (3) around the base (702); a plurality of second universal joints (704) are evenly and movably arranged on the outer side surface of the lower end of the intermediate plate (5) around the support column (701); a second buffer damping oil cylinder (705) is fixedly arranged between the first universal joint (703) and the second universal joint (704); and a second spring (706) is sleeved on the outer side surface of the second buffer damping oil cylinder (705).

4. The upper beam bridge bearing structure of claim 1, characterized in that: The outer surfaces of the bottom plate (3) and the top plate (4) are both provided with mounting holes (8).

5. The upper beam bridge bearing structure of a bridge according to claim 3, characterized in that: The outer surface of the lower end of the support column (701) is in contact with the outer surface of the base (702), and the outer surface of the upper end of the base (702) is a curved surface.

6. The upper beam bridge bearing structure of claim 3, characterized in that: A rubber sleeve (9) is fixedly arranged between the upper end of the base (702) and the support column (701), and lubricating oil is filled between the upper end of the base (702) and the rubber sleeve (9).

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