Bridge support damping structure
By combining compressed shock-absorbing media and hydraulic dampers in the bridge support, using adjustable length connecting rods and moving parts, the problem of insufficient shock absorption of traditional bridge support in complex vibration environments is solved, achieving more efficient shock resistance Performance and structural stability enhance the safety of the bridge.
Patent Information
- Application Number
- CN202421069702.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-16
AI Technical Summary
The traditional bridge support structure has poor shock absorption effect in complex and changing vibration environments, and has structural instability and safety hazards, which cannot effectively ensure the safety of the bridge.
A combination of shock absorption methods, including compressed shock absorption medium and hydraulic damper, combined with adjustable length connecting rods and moving parts, more effective shock absorption through hydraulic dampers and porous rubber materials, and through guide rails And wear-resistant wheels ensure smooth movement of the main body support.
The seismic performance and stability of the bridge structure are improved, the impact of earthquakes on the bridge is effectively reduced, and the safety and structural stability of the bridge are enhanced.
Smart Images
Figure CN222251732U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge supports, in particular to a bridge support shock absorbing structure. Background Art
[0002] In bridge structure engineering, bridge bearings are key components that connect bridge piers and bridge beams. Traditional bridge bearing structures are usually made of materials such as steel and concrete, and their main function is to support bridge loads and transfer loads to bridge piers.
[0003] Traditional bridge support structures mostly use a single shock-absorbing method, which cannot meet the shock-absorbing needs in complex and changeable vibration environments, resulting in poor shock-absorbing effects. Under the influence of external vibrations such as earthquakes, there are safety hazards such as structural instability and easy damage, which cannot effectively guarantee the safety of the bridge. Utility Model Content
[0004] In order to solve the above problems, the utility model proposes a bridge bearing shock-absorbing structure, including a bearing base, a main body bearing is arranged above the bearing base, a plurality of mounting slots are opened on the top of the main body bearing, connecting rods are fixed in the mounting slots, and a shock-absorbing member is arranged and placed in the mounting slots of the main body bearing; the shock-absorbing member includes an outer shell, a piston, a piston rod and a compressed shock-absorbing medium, the top of the connecting rod is fixed to the piston rod, the compressed shock-absorbing medium is filled in the piston part of the shock-absorbing member, a hydraulic damper is arranged on the side of the shock-absorbing member, the piston part of the shock-absorbing member is connected to the piston rod of the hydraulic damper through a sealing device, and the piston rod is connected to the piston of the hydraulic damper through a hydraulic head to form a closed hydraulic chamber, an upper connecting seat is arranged above the main body bearing, the bottom of the upper connecting seat is in contact with the top of the shock-absorbing member, a positioning frame plate is fixed to the bottom of the upper connecting seat, and a slot for inserting the positioning frame plate is opened on the top of the main body bearing.
[0005] Furthermore, a support moving part is arranged between the main support and the support base, and the support moving part includes a wheel rail fixed to the bottom of the main support, a guide rail is fixed to the top of the support base, a wear-resistant wheel is installed on the wheel rail, and the wear-resistant wheel contacts the top of the guide rail.
[0006] Furthermore, guide plates are fixed on the top of the support base on both sides of the wheel rail, a plurality of adjustment holes are opened on the guide plates, and adjustment strips are provided that can pass through the adjustment holes and block the moving path of the wheel rail.
[0007] Furthermore, the connecting rod is a telescopic rod with adjustable length so as to adjust the position and working state of the shock absorbing component.
[0008] Furthermore, the compression damping medium is a filler composed of porous rubber material.
[0009] The beneficial effects of the utility model are as follows:
[0010] 1. By adopting a combination of multiple shock-absorbing methods, such as the combination of compressed shock-absorbing media and hydraulic dampers, a more effective shock-absorbing effect is achieved, and the seismic performance of the bridge structure is improved; it has better structural stability and seismic resistance, can effectively reduce the impact of external vibrations such as earthquakes on the bridge structure, and improve the safety and stability of the bridge.
[0011] 2. The shock-absorbing parts are connected by connecting rods with adjustable lengths, so that the position and working state of the shock-absorbing parts can be flexibly adjusted to adapt to different shock-absorbing requirements and working environments. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the structure of the utility model.
[0013] The description of the accompanying drawings is as follows: 1. Main body support; 2. Shock absorber; 3. Hydraulic damper; 4. Connecting rod; 5. Mounting slot; 6. Upper connecting seat; 7. Positioning frame plate; 81. Wheel rail; 82. Guide rail; 83. Wear-resistant wheel; 9. Adjustment strip; 10. Support base; 11. Guide plate. DETAILED DESCRIPTION
[0014] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0015] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0016] The utility model is further described below in conjunction with the accompanying drawings:
[0017] A bridge bearing shock absorbing structure, such as Figure 1As shown, it includes a support base 10, a main body support 1 is arranged above the support base 10, a plurality of mounting slots 5 are opened on the top of the main body support 1, a connecting rod 4 is fixed in the mounting slot 5, a shock absorbing member 2 is arranged and placed in the mounting slot 5 of the main body support 1; the shock absorbing member 2 includes a shell, a piston, a piston rod and a compressed shock absorbing medium, the top of the connecting rod 4 is fixed to the piston rod, the compressed shock absorbing medium is filled in the piston part of the shock absorbing member 2, the compressed shock absorbing medium is a filler composed of a porous rubber material, and the connecting rod 4 is an extension with adjustable length. A retractable rod is used to adjust the position and working state of the shock absorber 2; a hydraulic damper 3 is arranged on the side of the shock absorber 2, and the piston part of the shock absorber 2 is connected to the piston rod of the hydraulic damper 3 through a sealing device, and the piston rod is connected to the piston of the hydraulic damper 3 through a hydraulic head to form a closed hydraulic chamber, and an upper connecting seat 6 is arranged above the main support 1, and the bottom of the upper connecting seat 6 is in contact with the top of the shock absorber 2, and a positioning frame plate 7 is fixed to the bottom of the upper connecting seat 6, and a slot for inserting the positioning frame plate 7 is opened on the top of the main support 1.
[0018] like Figure 1 As shown, in this embodiment, a support moving part is arranged between the main support 1 and the support base 10, and the support moving part includes a wheel rail 81 fixed to the bottom of the main support 1, and a guide rail 82 is fixed to the top of the support base 10. A wear-resistant wheel 83 is installed on the wheel rail 81, and the wear-resistant wheel 83 is in contact with the top of the guide rail 82; a guide plate 11 is fixed on both sides of the wheel rail 81 at the top of the support base 10, and a plurality of adjustment holes are opened on the guide plate 11, and an adjustment strip 9 is provided to pass through the adjustment hole to block the moving path of the wheel rail 81.
[0019] The working principle of the utility model is as follows:
[0020] The compressed shock-absorbing medium inside the shock-absorbing member 2 is composed of a porous rubber material. The compressed shock-absorbing medium is directly connected to the piston part of the shock-absorbing member 2 and is tightly connected by threads, pins or other fixing devices. The shock-absorbing medium can be compressed or released as the piston moves, and has good shock-absorbing performance. Under the action of external vibrations such as earthquakes, the compressed shock-absorbing medium can absorb and dissipate vibration energy and reduce the impact of earthquakes on the bridge structure.
[0021] A hydraulic damper 3 is arranged on the side of the shock absorber 2, which is connected to the piston of the hydraulic damper 3 through a piston rod to form a closed hydraulic chamber. The hydraulic damper 3 contains adjustable damping holes or valves. By adjusting these valves, the resistance of the hydraulic fluid passing through the damper can be changed, thereby adjusting the damping coefficient of the damper. When the hydraulic fluid passes through the damper, the resistance of the fluid will generate a damping force, thereby affecting the movement speed and vibration absorption capacity of the shock absorber, so that the liquid can flow through the buffer area of the damper, thereby adjusting the damping; the damping adjustment device controls the damping coefficient of the piston rod shock-absorbing medium to adapt to the shock absorption requirements under different vibration intensities and frequencies. By adjusting the damping force of the hydraulic or pneumatic damper, the damping characteristics of the shock absorber can be accurately controlled. Under the action of vibrations such as earthquakes, the hydraulic damper 3 can damp and attenuate the vibration through the damping force, further reducing the impact of the earthquake on the bridge structure.
[0022] A support moving part is arranged between the main support 1 and the support base 10, and the support moving part includes a wheel rail 81 and a guide rail 82, and a wear-resistant wheel 83 is installed on the wheel rail 81. Under the action of vibration such as earthquake, when the bridge is subjected to horizontal vibration, the wear-resistant wheel 83 on the wheel rail 81 slides up and down along the guide rail 82, so that the main support 1 can move freely on the guide rail 82, and the movement of the main support 1 is restricted by the guide rail 82 and the guide plate 11, which ensures the smooth movement of the main support 1 within a certain range, effectively reduces the displacement of the bridge caused by the earthquake, and improves the stability and safety of the bridge structure.
[0023] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. A bridge bearing shock-absorbing structure, comprising a bearing base (10), a main body bearing (1) being arranged above the bearing base (10), characterized in that: A plurality of mounting slots (5) are provided on the top of the main support (1), and a connecting rod (4) is fixed in the mounting slot (5). A shock absorbing member (2) is arranged and placed in the mounting slot (5) of the main support (1); the shock absorbing member (2) comprises a housing, a piston, a piston rod and a compressed shock absorbing medium. The top of the connecting rod (4) is fixed to the piston rod, and the compressed shock absorbing medium is filled in the piston part of the shock absorbing member (2). A hydraulic damper (3) is provided on the side of the shock absorbing member (2), and the piston part of the shock absorbing member (2) is connected to the piston rod of the hydraulic damper (3) through a sealing device, and the piston rod is connected to the piston of the hydraulic damper (3) through a hydraulic head, so as to form a closed hydraulic chamber. An upper connecting seat (6) is provided above the main support (1), and the bottom of the upper connecting seat (6) contacts the top of the shock absorbing member (2). A positioning frame plate (7) is fixed to the bottom of the upper connecting seat (6), and a slot for inserting the positioning frame plate (7) is provided on the top of the main support (1).
2. A bridge bearing shock absorbing structure according to claim 1, characterized in that: A support moving part is arranged between the main support (1) and the support base (10), the support moving part comprising a wheel rail (81) fixed to the bottom of the main support (1), a guide rail (82) fixed to the top of the support base (10), a wear-resistant wheel (83) mounted on the wheel rail (81), and the wear-resistant wheel (83) contacts the top of the guide rail (82).
3. A bridge bearing shock absorbing structure according to claim 2, characterized in that: A guide plate (11) is fixed on the top of the support base (10) on both sides of the wheel rail (81), and a plurality of adjustment holes are opened on the guide plate (11). An adjustment strip (9) is provided to pass through the adjustment holes and block the moving path of the wheel rail (81).
4. The bridge support shock absorbing structure according to claim 1, characterized in that: The connecting rod (4) is a telescopic rod with adjustable length, so as to adjust the position and working state of the shock absorbing component (2).
5. The bridge support shock absorbing structure according to claim 1, characterized in that: The compression damping medium is a filler composed of porous rubber material.