An assembled self-resetting energy dissipation bridge block

Abstract

The application discloses an assembled self-resetting energy dissipation bridge block, which comprises a block, wherein the block is connected to the outrigger of the cap beam on both sides through prestressed reinforcement, a damper is connected between the side surface of the block and the side surface of the cap beam body, a rubber pad is connected to the upper part of the side surface of the block, and the rubber pad is arranged on the side surface of the beam body above the cap beam. The assembled block is used to replace the fixed block, the block is arranged at the outrigger of the cap beam, the block and the outrigger of the cap beam are connected through the prestressed reinforcement, a disc spring is arranged at the top end anchoring position of the prestressed reinforcement, the tensioning of the prestressed reinforcement is realized, the installation stability of the block is ensured, the lower part of the side surface of the block is connected to the cap beam body through the U-shaped damper, and the rubber pad is arranged on the upper part of the side surface of the block. The transverse displacement of the block is effectively reduced, the damper can drive the block to reset, the residual deformation caused by vibration is reduced, the impact of the upper beam body structure on the block is buffered, and the self-resetting capacity of the whole anti-seismic block system is improved.

Description

Technical Field

[0001] This invention relates to the field of bridge technology, and more specifically, to a prefabricated self-resetting energy-dissipating bridge stop. Background Technology

[0002] With the increase in the volume of construction projects and the improvement of quality requirements, the seismic performance and service life of bridge structures are receiving increasing attention in construction. For example... Figure 1 As shown, the bridge structure includes the bridge beams, cap beams, precast piers, and supports. During the casting of the cap beams, convex concrete blocks are poured at both ends to prevent lateral movement of the beams. However, under strong earthquakes, these blocks lack any damping measures, resulting in a direct, rigid impact with the bridge. This generates significant impact force and easily causes brittle failure of the blocks, reducing or eliminating their restraining ability and damaging the main structure of the cap beams. This can lead to displacement or collapse of the main bridge beams, making repairs extremely difficult.

[0003] In the prior art, such as Chinese Patent Application No. 202210084019.3, a self-resetting seismic blocking block is disclosed, comprising several cap beams, a bridge main body, and concrete blocks. Each cap beam has at least one set of seismic blocking block systems at both ends. Each set of seismic blocking block systems includes a support unit and a block unit. The support unit includes a base and diagonal bracing rods located below the base. One end of the base has a bottom plate that is in close contact with the side wall of the cap beam. The lower end of the diagonal bracing rod has a support plate that is in close contact with the side wall of the cap beam. The block unit includes a standing seat located above the base and a top seat located on one side of the standing seat. The upper end of the standing seat is connected to a vertical plate, and a connecting bolt is provided between the vertical plate and the base. One end of the top seat has a top plate, and a rubber shock-absorbing pad is provided on the top plate, which is in close contact with the side wall of the bridge main body. This block structure, by adding a seismic blocking block system to the original concrete blocks, achieves a double-layer seismic resistance effect and can also achieve the effect of resetting the bridge main body. However, when the added structure reaches its limit position and the bridge body comes into contact with the seismic abutment, the aforementioned problem of rigid impact still exists, failing to substantially protect the abutment. Therefore, it is necessary to propose a prefabricated self-resetting energy-dissipating bridge abutment to at least partially solve the problems existing in the prior art. Summary of the Invention

[0004] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. The summary section of this invention is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] To at least partially solve the above problems, the present invention provides a prefabricated self-resetting energy-dissipating bridge stop, comprising:

[0006] The stop block is connected to the cantilever arms on both sides of the cap beam by prestressed steel bars. A damper is connected between the side of the stop block and the side of the main body of the cap beam. A rubber pad is connected to the upper part of the side of the stop block and is set on the side of the beam above the cap beam.

[0007] Preferably, the stop block includes: an upper mounting groove and an upper prestressed duct, the upper mounting groove being opened at the top of the stop block, and the upper prestressed duct being vertically arranged and passing through the upper mounting groove and the bottom of the stop block; the cap beam includes: a lower mounting groove and a lower prestressed duct, the lower mounting groove being opened at the bottom of the cap beam cantilever, and the lower prestressed duct being vertically arranged and passing through the lower mounting groove and the lower prestressed duct; the upper prestressed duct and the lower prestressed duct correspond to each other, and the prestressed steel bars are arranged inside the upper prestressed duct and the lower prestressed duct.

[0008] Preferably, the top and bottom ends of the prestressed steel bars are connected to anchorages, and the two anchorages are respectively connected to the bottom of the upper and lower installation grooves. Cover plates are connected to the openings of the upper and lower installation grooves.

[0009] Preferably, a disc spring connects the anchor in the upper mounting groove to the bottom of the upper mounting groove.

[0010] Preferably, the damper is configured as a U-shaped damper arranged in multiple arrays, with the two arms of the damper connected to the side of the stop block and the side of the main body of the cap beam, respectively.

[0011] Preferably, a stop block seat is provided at the bottom of the stop block. The stop block seat is U-shaped and anti-slip blocks are provided on both sides of the bottom end of the stop block seat. The stop block is installed in the stop block seat and the anti-slip blocks are connected to the upper part of the cover beam extension arm to increase the friction between the stop block seat and the cover beam extension arm.

[0012] Preferably, a reinforcing plate is connected to the side of the main body of the cover beam, and the reinforcing plate corresponds to the side position of the stop block seat. The two arms of the damper are connected to the stop block seat and the reinforcing plate respectively by bolts.

[0013] Preferably, a seismic-resistant unit is connected between the stop block and the rubber pad, and the seismic-resistant unit includes:

[0014] The seismic plate is connected to the side of the stop block, and a transmission column is connected to the center of the seismic plate;

[0015] The transmission box is located on the other side of the anti-vibration plate, and the transmission column extends into the transmission box. The side of the transmission box away from the anti-vibration plate is connected to the rubber pad.

[0016] The balance bar consists of two bars that are hinged to the extension plates on both sides of the transmission box. A coil spring is installed at the hinge point. Rollers are connected to the ends of the balance bars, and the rollers on both balance bars are in contact with the side of the beam above the cap beam. The balance bars are arranged at an angle and maintain an outward extension trend.

[0017] Preferably, the transmission box includes: a slide rod, a gear frame, a gear, and a rack. The slide rod is slidably connected to both sides of the inner wall of the transmission box and extends through the transmission box toward the anti-vibration plate. A rack is connected to the side of the slide rod, and racks are connected to both sides of the transmission column. The gear is meshed between racks and racks. The gear is connected to the gear frame on the inner wall of the transmission box, and a coil spring is connected to the gear shaft.

[0018] Preferably, the seismic unit further includes: a hydraulic strut, one end of which is hinged to the outside of the balance bar, and the other end is hinged to the extension plate. The hinge point between the hydraulic strut and the extension plate is located outside the hinge point between the balance bar and the extension plate. A pressure sensor is installed inside the hydraulic strut to detect the pressure value inside the hydraulic strut when it is under pressure.

[0019] Preferably, a rotating shaft is rotatably connected to the inner wall of the transmission box, a spiral plate is connected to the rotating shaft, and a coil spring is provided at the connection between the rotating shaft and the transmission box; a drive rod is connected to the anti-vibration plate, the drive rod extends into the transmission box, and the ball at the end of the drive rod is rolled on the spiral plate.

[0020] Preferably, the seismic diaphragm is equipped with a suspension unit, which includes:

[0021] The shell is connected to the anti-seismic plate and corresponds to the end of the sliding rod. A suspension cavity is provided inside the shell, and the shell has an opening on the side near the sliding rod.

[0022] Suspension block, the suspension block is located at the center of the shell;

[0023] Permanent magnet one, which is connected to the inner wall of the shell around the perimeter;

[0024] Permanent magnet two is connected around the suspension block and corresponds to permanent magnet one. Permanent magnet one and permanent magnet two have opposite magnetic properties.

[0025] The pressure block is connected to the side of the suspension block near the slide rod, and the pressure block has a groove to accommodate the end of the slide rod.

[0026] Compared with the prior art, the present invention has at least the following beneficial effects:

[0027] This invention provides a prefabricated self-resetting energy-dissipating bridge stop, which replaces the fixed stop. The stop is set at the cantilever of the cap beam and connected to the cantilever by prestressed steel bars. A disc spring is installed at the top anchorage of the prestressed steel bars to tension the prestressed steel bars and ensure the installation stability of the stop. A U-shaped damper is connected to the main body of the cap beam through the lower side of the stop, and a rubber pad is installed on the upper side of the stop. This effectively reduces the lateral displacement of the stop, and the damper can drive the stop to reset, reducing residual deformation caused by vibration, buffering the impact of the upper beam structure on the stop, and improving the self-resetting capability of the entire seismic stop system.

[0028] The present invention provides a prefabricated self-resetting energy-dissipating bridge stop. Other advantages, objectives and features of the present invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of the invention. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is a schematic diagram of the existing cap beam's three-dimensional structure.

[0031] Figure 2 This is a schematic diagram of the structure of the present invention;

[0032] Figure 3 For the present invention Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;

[0033] Figure 4 For the present invention Figure 2 A magnified schematic diagram of the local structure at point B;

[0034] Figure 5 This is a schematic diagram of the installation structure of the seismic-resistant unit in this invention;

[0035] Figure 6 This is a schematic diagram of the installation structure of the seismic unit and the top rod of the beam above the cap beam in this invention;

[0036] Figure 7 This is a cross-sectional structural diagram of the seismic-resistant unit in this invention;

[0037] Figure 8 This is a schematic diagram of the installation structure of the spiral plate in the seismic unit of the present invention;

[0038] Figure 9 For the present invention Figure 7 A magnified schematic diagram of the structure at point C.

[0039] In the diagram: 1. Stop block; 2. Cap beam; 3. Prestressed steel bar; 4. Damper; 5. Rubber pad; 6. Upper mounting groove; 7. Upper prestressed duct; 8. Lower mounting groove; 9. Lower prestressed duct; 10. Anchor; 11. Cover plate; 12. Disc spring; 13. Stop block seat; 14. Anti-slip block; 15. Reinforcing plate; 21. Seismic plate; 22. Transmission column; 23. Transmission box; 24. Balance bar; 25. Roller; 26. Sliding rod; 27. Gear frame; 28. Gear; 29. ​​Rack one; 30. Rack two; 31. Hydraulic strut; 32. Rotating shaft; 33. Spiral plate; 34. Drive rod; 35. Sphere; 41. Shell; 42. Suspension cavity; 43. Suspension block; 44. Permanent magnet one; 45. Permanent magnet two; 46. Pressure block; 47. Groove. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0041] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0042] Example 1: As Figure 2-4 As shown, the present invention provides a prefabricated self-resetting energy-dissipating bridge stop, comprising:

[0043] Stop 1 is connected to the cantilever arms on both sides of the cap beam 2 by prestressed steel bars 3. A damper 4 is connected between the side of the stop 1 and the main side of the cap beam 2. A rubber pad 5 is connected to the upper part of the side of the stop 1. The rubber pad 5 is set on the side of the beam above the cap beam 2.

[0044] The stop block 1 includes an upper mounting groove 6 and an upper prestressed duct 7. The upper mounting groove 6 is located at the top of the stop block 1, and the upper prestressed duct 7 is vertically arranged and passes through the upper mounting groove 6 and the bottom of the stop block 1. The cap beam 2 includes a lower mounting groove 8 and a lower prestressed duct 9. The lower mounting groove 8 is located at the bottom of the cantilever of the cap beam 2, and the lower prestressed duct 9 is vertically arranged and passes through the lower mounting groove 8 and the lower prestressed duct 9. The upper prestressed duct 7 and the lower prestressed duct 9 correspond to each other, and the prestressed steel bars 3 are arranged inside the upper prestressed duct 7 and the lower prestressed duct 9.

[0045] Anchors 10 are connected to the top and bottom of the prestressed steel bar 3. The two anchors 10 are connected to the bottom of the upper installation groove 6 and the lower installation groove 8 respectively. Cover plates 11 are connected to the openings of the upper installation groove 6 and the lower installation groove 8.

[0046] A disc spring 12 is connected between the anchor 10 in the upper mounting groove 6 and the bottom of the upper mounting groove 6.

[0047] The damper 4 is configured as a U-shaped damper with multiple arrays arranged in an array. The two arms of the damper 4 are connected to the side of the stop block 1 and the main body side of the cover beam 2, respectively.

[0048] The working principle and beneficial effects of the above technical solution are as follows:

[0049] A prefabricated self-resetting energy-dissipating bridge stop block adopts a prefabricated installation method. Extendable arms are pre-reserved on both sides of the cap beam 2. During assembly, the stop block 1 is installed at a preset position on the extendable arm of the cap beam 2, aligning the upper prestressed duct 7 and the lower prestressed duct 9 to form an installation channel for the prestressed steel bar 3. The prestressed steel bar 3 is inserted along the installation channel, extending its bottom end into the lower installation groove 8. Anchors 10 are installed on it, ensuring they abut against the bottom of the lower installation groove 8, thus fixing the prestressed steel bar 3. The top of 3 extends into the upper mounting groove 6. Disc springs 12 and anchors 10 are installed sequentially on the prestressed steel bars 3. Tightening the anchors 10 gives the disc springs 12 a certain elastic force, and the prestressed steel bars 3 are stretched by the elastic force to have a certain prestress. A U-shaped damper 4 is set between the stop block 1 and the main side of the cap beam 2. When the damper 4 is subjected to tension and compression, the two arms tend to return to their original position, which can reduce the tilt and displacement of the stop block 1. A rubber pad 5 is set on the side of the stop block 1. The rubber pad 5 contacts the side of the beam above the cap beam 2 to buffer the beam.

[0050] Through the above structural design, a prefabricated self-resetting energy-dissipating bridge stop is provided. The prefabricated stop 1 replaces the fixed stop. The stop 1 is set at the cantilever of the cap beam 2 and is connected to the cantilever of the cap beam 2 by prestressed steel bars 3. A disc spring 12 is set at the top anchorage of the prestressed steel bars 3 to tension the prestressed steel bars 3 and ensure the installation stability of the stop 1. The lower side of the stop 1 is connected to the main body of the cap beam 2 by a U-shaped damper 4. A rubber pad 5 is set on the upper side of the stop 1. The lateral displacement of the stop 1 is effectively reduced. The damper 4 can drive the stop 1 to reset, reduce the residual deformation caused by vibration, buffer the impact of the upper beam structure on the stop 1, and improve the self-resetting ability of the entire seismic stop system.

[0051] Example 2: As Figure 2-4 As shown, based on the above embodiment 1, the bottom of the stop block 1 is provided with a stop block seat 13. The stop block seat 13 is U-shaped, and anti-slip blocks 14 are provided on both sides of the bottom end of the stop block seat 13. The stop block 1 is installed in the stop block seat 13, and the anti-slip blocks 14 are connected to the upper part of the cover beam 2 extension arm to increase the friction between the stop block seat 13 and the cover beam 2 extension arm.

[0052] The main body of the cover beam 2 is connected to a reinforcing plate 15. The reinforcing plate 15 corresponds to the side position of the stop block seat 13. The two arms of the damper 4 are connected to the stop block seat 13 and the reinforcing plate 13 respectively by bolts.

[0053] The working principle and beneficial effects of the above technical solution are as follows:

[0054] The stop block 1 is connected to the cantilever arm of the cover beam 2 via the stop block seat 13. The stop block seat 13 reinforces the sides and bottom of the stop block 1. When the stop block seat 13 is installed with the cover beam 2, its bottom plate contacts the cover beam 2, increasing the contact area and providing anti-slip function. The anti-slip block 14 on the bottom plate is protruding and limits the side end of the stop block seat 13 when the stop block 1 slides laterally, reducing the tilt of the stop block 1. The reinforcing plates 15 provided on the side of the stop block seat 13 and the side of the main body of the cover beam 2 facilitate the installation and removal of the damper 4, and allow for replacement when the damper 4 fails.

[0055] Example 3: As Figure 5-7 As shown, based on the above embodiment 1, an anti-vibration unit is connected between the stop block 1 and the rubber pad 5. The anti-vibration unit includes:

[0056] The seismic plate 21 is connected to the side of the stop block 1, and the center of the seismic plate 21 is connected to the transmission column 22;

[0057] The transmission box 23 is located on the other side of the anti-vibration plate 21, and the transmission column 22 extends into the transmission box 23. The side of the transmission box 23 away from the anti-vibration plate 21 is connected to the rubber pad 5.

[0058] The balance bar 24 is hinged to the extension plates on both sides of the transmission box 23, and a coil spring is provided at the hinge. The end of the balance bar 24 is connected to a roller 25, and the rollers 25 on both balance bars 24 are in contact with the side of the beam above the cover beam 2. The balance bar 24 is arranged at an angle and maintains an outward trend.

[0059] The transmission box 23 includes: a slide rod 26, a gear frame 27, a gear 28, and a rack 29. The slide rod 26 is slidably connected to both sides of the inner wall of the transmission box 23 and extends through the transmission box 23 toward the anti-vibration plate 21. The rack 29 is connected to the side of the slide rod 26. The rack 30 is connected to both sides of the transmission column 22. The gear 28 is meshed between the rack 29 and the rack 30. The gear 28 is connected to the gear frame 27 on the inner wall of the transmission box 23. A coil spring is connected to the shaft of the gear 28.

[0060] The working principle and beneficial effects of the above technical solution are as follows:

[0061] To improve the seismic performance of the stop block 1, a seismic unit is set between the stop block 1 and the rubber pad 5. When the beam above the cap beam 2 presses against the stop block 1, the beam contacts the rubber pad 5 and the roller 25. As the beam moves closer to the stop block 1, the beam deforms the rubber pad 5, pushing it towards the stop block 1. This pushes the transmission box 23 towards the stop block 1, and the transmission column 22 slides into the transmission box 23. The rack 20 on the side of the transmission column 22 and the rack 29 on the side of the slide rod 26 mesh with the gear 28, causing the slide rod 26 to move in the opposite direction to the transmission column 22, i.e., the slide rod 26 moves out of the transmission box 23. This continues until the slide rod 26 contacts the seismic plate 21 and reaches its limit position. At this point, the beam continues to move, increasing the deformation of the rubber pad 5, and the pressure of the beam is transmitted to the stop block 1. When the rubber pad 5 deforms, the distance between the transmission box 23 and the beam decreases, and the roller 25 rolls to both sides, causing the balance bar 24 to unfold to both sides. A coil spring is installed on the shaft of gear 28. When gear 28 rotates, it can store energy in the coil spring, giving it the ability to reset. At the same time, as the number of rotations of gear 28 increases, the resistance that needs to be overcome increases, which plays a certain role in energy consumption and buffering.

[0062] Through the above structural design, the seismic performance of the stop block 1 is effectively enhanced. Compared with the method of using rubber pad 5 alone, the combination of rigid isolation and flexible energy dissipation increases the transmission links of the vibration wave and extends the transmission path, which can further dissipate the vibration wave, reduce the transmission of the vibration wave from the beam to the stop block 1, and improve the seismic performance of the stop block 1.

[0063] Example 4: Figure 6 , 7 As shown, based on the above embodiment 3, the seismic unit further includes: a hydraulic strut 31, one end of which is hinged to the outside of the balance bar 24, and the other end is hinged to the extension plate. The hinge point between the hydraulic strut 31 and the extension plate is arranged outside the hinge point between the balance bar 24 and the extension plate. A pressure sensor is installed inside the hydraulic strut 31 to detect the pressure value inside the hydraulic strut 31 when it is under pressure.

[0064] The working principle and beneficial effects of the above technical solution are as follows:

[0065] When the beam is subjected to vibration and pressure on the stop block 1, due to the irregularity of the vibration waves, the beam's movement will not always be a lateral translation; there will also be a deflection. When the beam deflects, the compressive forces on the balance bars 24 on both sides are unequal. Hydraulic struts 31 are used to support the balance bars 24. Pressure sensors detect the compressive forces on the hydraulic medium inside the hydraulic struts 31. When the difference in compressive forces is within a preset range, it indicates that the beam deflection is small and negligible. The hydraulic struts 31 are not pressurized and are in a free state, freely extending and retracting with the balance bars 24. When the difference in compressive forces exceeds the preset range, it indicates that the beam deflection is large. The hydraulic struts 31 on the side with greater pressure are extended, causing the balance bars 24 on that side to retract towards the middle, compressing the beam to rotate and return it to the undeflected state until the compressive forces on the hydraulic struts 31 on both sides are within the preset range. At this point, the beam resets, and the hydraulic struts 31 switch to a free state. Through the above structural design, the deflection state of the beam is monitored in real time, which effectively realizes the rapid correction of the beam, reduces the deflection during the vibration process of the beam, avoids uneven deformation caused by uneven force on the rubber pad 5, and reduces the risk of separation between the beam and the rubber pad 5.

[0066] Example 5: Figure 8 As shown, based on the above embodiment 3, a rotating shaft 32 is rotatably connected to the inner wall of the transmission box 23, a spiral plate 33 is connected to the rotating shaft 32, and a coil spring is provided at the connection between the rotating shaft 32 and the transmission box 23; a drive rod 34 is connected to the anti-vibration plate 21, the drive rod 34 extends into the transmission box 23, and the ball 35 at the end of the drive rod 34 is rolled on the spiral plate 33.

[0067] The working principle and beneficial effects of the above technical solution are as follows:

[0068] A spiral plate 33 is installed inside the transmission box 23. When the transmission box 23 moves, the drive rod 34 moves into the transmission box 23, and the ball 35 slides along the spiral plate 33, causing the rotating shaft 32 of the spiral plate 33 to rotate. When the rotating shaft 32 rotates, it stores energy in the coil spring. As the number of rotations increases, the resistance that needs to be overcome increases, which plays a buffering role. The coil spring at the rotating shaft 32 supplements the reset capability and reduces the possibility that the structure cannot be completely reset.

[0069] Example 6: As Figure 9 As shown, based on the above embodiment 3, a suspension unit is provided inside the anti-seismic plate 21, and the suspension unit includes:

[0070] The housing 41 is connected to the anti-vibration plate 21 and corresponds to the end of the slide rod 26. The housing 41 is provided with a suspension cavity 42 and has an opening on the side of the housing 41 near the slide rod 26.

[0071] Suspension block 43, which is disposed at the center of housing 41;

[0072] Permanent magnet 44 is connected to the inner wall of housing 41 around the perimeter.

[0073] Permanent magnet 45 is connected around the suspension block 43 and corresponds to permanent magnet 44. Permanent magnet 44 and permanent magnet 45 have opposite magnetic properties.

[0074] The pressure block 46 is connected to the side of the suspension block 43 near the slide rod 26, and the pressure block 46 has a groove 47 for accommodating the end of the slide rod 26.

[0075] The working principle and beneficial effects of the above technical solution are as follows:

[0076] Through the repulsive effect of permanent magnet 44 on permanent magnet 45, the suspension block 43 is constrained and suspended in the suspension cavity 42 of the shell 41. When the sliding rod 26 reaches the limit position of contact with the anti-vibration plate 21, the sliding rod 26 extends into the groove 47 to squeeze the pressure block 46. Because the suspension block 43 is suspended, the vibration wave will be greatly dissipated when passing between the permanent magnets, while avoiding noise when in contact, reducing the resonance of the structural components, and avoiding secondary excitation vibration.

[0077] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0078] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0079] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. Other modifications can be easily made by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A prefabricated self-resetting energy-dissipating bridge stop, characterized in that, include: The stop block (1) is connected to the cantilever arm on both sides of the cap beam (2) by prestressed steel bars (3). A damper (4) is connected between the side of the stop block (1) and the main side of the cap beam (2). A rubber pad (5) is connected to the upper part of the side of the stop block (1). The rubber pad (5) is set on the side of the beam above the cap beam (2). The stop block (1) includes: an upper mounting groove (6) and an upper prestressed duct (7). The upper mounting groove (6) is opened at the top of the stop block (1), and the upper prestressed duct (7) is vertically arranged and passes through the upper mounting groove (6) and the bottom of the stop block (1). The cap beam (2) includes: a lower mounting groove (8) and a lower prestressed duct (9). The lower mounting groove (8) is opened at the bottom end of the cantilever of the cap beam (2). The lower prestressed duct (9) is vertically arranged and passes through the lower mounting groove (8) and the lower prestressed duct (9). The upper prestressed duct (7) and the lower prestressed duct (9) correspond to each other. The prestressed steel bars (3) are set in the upper prestressed duct (7) and the lower prestressed duct (9). Anchors (10) are connected to the top and bottom of the prestressed steel bar (3). The two anchors (10) are connected to the bottom of the upper installation groove (6) and the lower installation groove (8) respectively. Cover plates (11) are connected to the openings of the upper installation groove (6) and the lower installation groove (8). A disc spring (12) is connected between the anchor (10) in the upper mounting groove (6) and the bottom of the upper mounting groove (6); The bottom of the block (1) is provided with a block seat (13), the block seat (13) is U-shaped, and anti-slip blocks (14) are provided on both sides of the bottom end of the block seat (13). The block (1) is installed in the block seat (13), and the anti-slip blocks (14) are connected to the upper part of the cover beam (2). The main body of the cap beam (2) is connected to a reinforcing plate (15). The reinforcing plate (15) corresponds to the side position of the stop block seat (13). The damper (4) is set as a U-shaped damper with multiple arrays. The two arms of the damper (4) are connected to the stop block seat (13) and the reinforcing plate (15) respectively by bolts. A seismic unit is connected between the stop block (1) and the rubber pad (5). The seismic unit includes: The seismic plate (21) is connected to the side of the block (1), and the center of the seismic plate (21) is connected to the transmission column (22). The transmission box (23) is located on the other side of the anti-vibration plate (21), and the transmission column (22) extends into the transmission box (23). The side of the transmission box (23) away from the anti-vibration plate (21) is connected to the rubber pad (5). The balance bar (24) is hinged to the extension plates on both sides of the transmission box (23) and a coil spring is provided at the hinge. The end of the balance bar (24) is connected to a roller (25) and the roller (25) on both balance bars (24) is in contact with the side of the beam above the cap beam (2). The balance bar (24) is arranged at an angle and maintains the tendency to extend outward. The transmission box (23) includes: a slide rod (26), a gear frame (27), a gear (28), and a rack (29). The slide rod (26) is slidably connected to both sides of the inner wall of the transmission box (23) and extends through the transmission box (23) toward the anti-vibration plate (21). The slide rod (26) is connected to the side of the rack (29). The transmission column (22) is connected to both sides of the rack (20). The gear (28) is meshed between the rack (29) and the rack (30). The gear (28) is connected to the gear frame (27) on the inner wall of the transmission box (23). A coil spring is connected to the shaft of the gear (28).

2. The prefabricated self-resetting energy-dissipating bridge stop block according to claim 1, characterized in that, The seismic unit also includes a hydraulic strut (31), one end of which is hinged to the outside of the balance bar (24) and the other end is hinged to the extension plate. The hinge point between the hydraulic strut (31) and the extension plate is located outside the hinge point between the balance bar (24) and the extension plate. A pressure sensor is installed inside the hydraulic strut (31) to detect the pressure value inside the hydraulic strut (31) when it is under pressure.

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