CN112458889A

CN112458889A - Flexible joint structure of bridge

Info

Publication number: CN112458889A
Application number: CN202011252486.XA
Authority: CN
Inventors: 马光强
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-03-09

Abstract

The invention discloses a flexible joint structure of a bridge, which comprises a cylindrical pier and two bridge floors, wherein a quadrangular frustum pyramid supporting block is fixed on the top surface of the cylindrical pier, a cuboid supporting block is fixed on the top surface of the quadrangular frustum pyramid supporting block, a first connecting block is fixed on the top surface of the cuboid supporting block, a second connecting block is fixed on the bottom surface of the bridge floor, the first connecting block and the second connecting block are in compression joint, a gap is arranged between the two bridge floors, a connecting piece is in compression joint with the gap, the bottom of the connecting piece is fixed on the top surface of the first connecting block, the first connecting block comprises a first connecting block body, prismatic table grooves are symmetrically fixed on the top surface of the first connecting block body, a cuboid through groove is arranged on the side surface of the first connecting block body, a plurality of elastic devices are fixed on the bottom surface of the cuboid through groove, a first cylindrical roller is in compression joint. The invention can improve the defects of the prior art and enhance the anti-seismic effect.

Description

Flexible joint structure of bridge

Technical Field

The invention relates to the technical field of roads and bridges, in particular to a flexible joint structure of a bridge.

Background

The quality of the existing bridge structure is influenced by various factors, wherein the large truck causes the vibration of the bridge when passing through the bridge structure, and the service life of the bridge is greatly influenced. Be equipped with the support that bears between current bridge bottom and the pier, current support connection structure is limited to the displacement limiting action of girder bridge in transverse direction, and need reserve the clearance between the bridge floor, when large-scale freight train passes through, thereby easily causes certain impact to the clearance and makes the bridge floor produce the vibration, and the vibration that this impact brought has the high characteristics of vibration frequency, easily causes the vibrations damage to the bridge, and then influences the bridge life-span.

Disclosure of Invention

The invention aims to provide a flexible joint structure of a bridge, which can overcome the defects of the prior art and enhance the anti-seismic effect.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows.

A flexible bridge joint structure comprises a cylindrical bridge pier and two bridge floors, wherein a quadrangular frustum supporting block is fixed on the top surface of the cylindrical bridge pier, a cuboid supporting block is fixed on the top surface of the quadrangular frustum supporting block, a first connecting block is fixed on the top surface of the cuboid supporting block, a second connecting block is fixed on the bottom surface of the bridge floor, the first connecting block and the second connecting block are in compression joint, a gap is arranged between the two bridge floors, a connecting piece is in compression joint, the bottom of the connecting piece is fixed on the top surface of the first connecting block, the first connecting block comprises a first connecting block body, prismatic table grooves are symmetrically fixed on the top surface of the first connecting block body, a cuboid through groove is arranged on the side surface of the first connecting block body, a plurality of elastic devices are fixed on the bottom surface of the cuboid through groove, a first cylindrical roller is in compression joint on the top of the elastic, the top surface of the cuboid rolling block is provided with a first cuboid groove, the bottom surface of the cuboid rolling block is in compression joint with the rolling side surface of a first cylinder, the second connecting block comprises a second connecting block body, the center of the bottom surface of the second connecting block body is fixedly provided with a triangular prism stop block, the second connecting block body is in compression joint with the prismatic table groove, the triangular prism stop block is in compression joint with the first cuboid groove, the connecting piece comprises two rectangular connecting piece bodies which are arranged in parallel, the side surface of each rectangular connecting piece body is fixedly provided with two rows of third connecting blocks in parallel, two ends of the arc-shaped elastic piece are clamped with the third connecting blocks, the two rectangular connecting piece bodies are connected through a plurality of second springs, the bottom surface of each rectangular connecting piece body is fixedly arranged on the side surface of the cuboid rolling block, the arc-shaped elastic piece comprises an arc, cuboid protruding side is fixed with arc, the bridge floor includes the bridge floor body, a plurality of cuboid connecting pieces in bridge floor body side, and cuboid connecting piece top surface is equipped with second cuboid recess, and second cuboid recess bottom surface is fixed with the cuboid rubber pad, and cuboid rubber pad top surface is equipped with arc recess, arc recess and arc crimping.

Preferably, the third connecting block comprises a third connecting block body, the third connecting block body is provided with a clamping groove, the clamping groove is clamped with the clamping key, one end of the first elastic sheet is fixed on the bottom surface of the clamping groove, the other end of the first elastic sheet is fixed on the bottom surface of the elastic cushion,

preferably, a plurality of rubber arc-shaped protrusions are fixed on the bottom surface of the second connecting block body.

Preferably, a rectangular parallelepiped cover body is fixed to the top surface of the slit.

Preferably, the two side faces of the cuboid supporting block are symmetrically fixed with connecting rods, and the other ends of the connecting rods are fixed on the edge of the bottom face of the bridge deck.

Adopt the beneficial effect that above-mentioned technical scheme brought to lie in: the invention comprises a cylindrical pier and two bridge floors, when a heavy vehicle moves on the bridge floors, the bridge floors are inevitably vibrated, an arc-shaped part can be caused to extrude an arc-shaped groove in the vertical direction and the horizontal direction simultaneously, the arc-shaped groove has obvious vibration buffering effect, and an arc-shaped elastic piece body rebounds to extrude a rectangular connecting piece body to compress a second spring, so that the vibration is buffered, in addition, as the bottom surface of the rectangular connecting piece body is fixed on the side surface of a rectangular rolling block, the rectangular connecting piece body pulls the rectangular rolling block to roll on a first cylindrical roller, further, the bridge floors vibrate to drive a second connecting block to vibrate, a triangular prism stop block drives the rectangular rolling block to vibrate, so that the rectangular rolling block rolls on the first cylindrical roller and acts on the arc-shaped elastic piece body to act on the first spring, and thus, the pier and the two bridge floors are organically connected into, two bridge floor interact to act on the pier, the pier counteracts two bridge floors again simultaneously, and its horizontal direction shock attenuation effect is obvious. The third connecting block includes the third connecting block body, the third connecting block body is equipped with the draw-in groove, draw-in groove and card key joint, first shell fragment one end is fixed in the draw-in groove bottom surface, the first shell fragment other end is fixed in and plays the pad bottom surface, when two bridge floor vibrations extrude arc bullet spare body, arc bullet spare body extrusion card key, and then the first shell fragment of compression bullet pad extrusion, and two bridge floor vibrations drive the second connecting block vibrations and arouse rectangle connecting piece body compression arc bullet spare body to extrude the card key once more, and then the first shell fragment of compression bullet pad extrusion, thereby the shock attenuation effect has been strengthened once more, second connecting block body bottom surface is fixed with a plurality of rubber arc archs, the elastic connection of bridge floor and pier has been. The cuboid cover body is fixed on the top surface of the gap, so that sundries are prevented from entering the gap, damage of the sundries to the connecting piece in the gap is prevented, and the shock absorption effect is favorably guaranteed. Connecting rods are symmetrically fixed on two side faces of the cuboid supporting block, and the other ends of the connecting rods are fixed on the edge of the bottom face of the bridge floor, so that the connection between the bridge pier and the two bridge floors is enhanced, and the integral anti-seismic effect of the invention is improved.

Drawings

FIG. 1 is a block diagram of one embodiment of the present invention.

Fig. 2 is a structural diagram of a first connection block in an embodiment of the present invention.

Fig. 3 is a structural view of a second connection block in an embodiment of the present invention.

Fig. 4 is a front view structural view of a connector in an embodiment of the present invention.

Fig. 5 is a side view of a connector in accordance with an embodiment of the present invention.

Fig. 6 is a block diagram of a curved spring in accordance with an embodiment of the present invention.

Fig. 7 is a structural view of a third connecting block in an embodiment of the present invention.

Figure 8 is a block diagram of a bridge deck according to an embodiment of the present invention.

FIG. 9 is a block diagram of an elastic device in accordance with an embodiment of the present invention.

In the figure: 1. a cylindrical pier; 2. a quadrangular frustum pyramid supporting block; 3. a cuboid supporting block; 4. a first connection block; 5. a bridge deck; 6. a second connecting block; 7. a connecting member; 8. a rectangular cover body; 9. a connecting rod; 10. a gap; 41. a first connecting block body; 42. a prismatic table groove; 43. a rectangular through groove; 44. a first cylindrical roller; 45. a rectangular rolling block; 46. a first cuboid groove; 47. a first spring; 48. an elastic device; 61. a second connecting block body; 62. a triangular prism block; 63. a rubber arc-shaped bulge; 71. a rectangular connector body; 72. a third connecting block; 73. an arc-shaped elastic piece; 74. a second spring; 731. an arcuate spring body; 732. a card key; 733. a cuboid bulge; 734. an arc-shaped portion; 51. a bridge deck body; 52. a rectangular connecting piece; 53. a second cuboid groove; 54. a rectangular rubber pad; 55. an arc-shaped groove; 721. a third connecting block body; 722. a card slot; 723. a spring pad; 724. a first spring plate; 481. an elastic device body; 482. a rectangular bullet block; 483. a semicircular groove; 484. a second cylindrical roller; 485. a fixed mount; 486. a second elastic sheet; 487. a third cuboid groove.

Detailed Description

The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the attached drawings, and the specific connection mode of each part adopts the conventional means of mature bolts, rivets, welding, sticking and the like in the prior art, and the detailed description is not repeated.

Referring to fig. 1-9, one embodiment of the present invention includes a cylindrical pier 1 and two bridge decks 5, a rectangular frustum support block 2 is fixed on the top surface of the cylindrical pier 1, a rectangular support block 3 is fixed on the top surface of the rectangular frustum support block 2, a first connection block 4 is fixed on the top surface of the rectangular support block 3, a second connection block 6 is fixed on the bottom surface of the bridge deck 5, the first connection block 4 and the second connection block 6 are pressed, a gap 10 is provided between the two bridge decks 5, a connection member 7 is pressed on the gap 10, the bottom of the connection member 7 is fixed on the top surface of the first connection block 4, the first connection block 4 includes a first connection block body 41, a frustum groove 42 is symmetrically fixed on the top surface of the first connection block body 41, a rectangular through groove 43 is provided on the side surface of the first connection block body 41, a plurality of elastic devices 48 are fixed on the bottom surface of, one end of a first spring 47 is symmetrically connected to the side surface of the rectangular through groove 43, the other end of the first spring 47 is symmetrically connected to the side surface of the rectangular rolling block 45, the top surface of the rectangular rolling block 45 is provided with a first rectangular groove 46, the bottom surface of the rectangular rolling block 45 is in compression joint with the side surface of the first cylindrical rolling block 44, the second connecting block 6 comprises a second connecting block body 61, a triangular prism stop 62 is fixed at the center of the bottom surface of the second connecting block body 61, the second connecting block body 61 is in compression joint with the prism table groove 42, the triangular prism stop 62 is in compression joint with the first rectangular groove 46, the connecting piece 7 comprises two rectangular connecting piece bodies 71 which are arranged in parallel, two rows of third connecting blocks 72 are fixed on the side surfaces of the rectangular connecting piece bodies 71 in parallel, two ends of an arc-shaped elastic piece 73 are clamped with the third connecting blocks 72, the two, arc bullet piece 73 includes arc bullet piece body 731, and arc bullet piece body 731 both ends symmetry is fixed with the catch 732, and arc bullet piece body 731 lateral surface center is fixed with cuboid arch 733, and cuboid arch 733 side is fixed with arc portion 734, bridge floor 5 includes bridge floor body 51, a plurality of cuboid connecting pieces 52 in bridge floor body 51 side, and cuboid connecting piece 52 top surface is equipped with second cuboid recess 53, and second cuboid recess 53 bottom surface is fixed with cuboid rubber pad 54, and cuboid rubber pad 54 top surface is equipped with arc recess 55, arc recess 55 and arc portion 734 crimping. When a heavy vehicle moves on the bridge deck 5, the bridge deck 5 inevitably vibrates, the arc-shaped part 734 can extrude the arc-shaped groove 55 in the vertical direction and the horizontal direction simultaneously, the effect of buffering vibration is obvious, the arc-shaped elastic piece body 731 rebounds, and the rectangular connecting piece body 71 is extruded to compress the second spring 74, so that the vibration is buffered, in addition, as the bottom surface of the rectangular connecting piece body 71 is fixed on the side surface of the rectangular rolling block 45, the rectangular connecting piece body 71 pulls the rectangular rolling block 45 to roll on the first cylindrical roller 44, further, the bridge deck 5 vibrates, and drives the second connecting block 6 to vibrate, so that the triangular prism stopper 62 drives the rectangular rolling block 45 to vibrate, so that the rectangular rolling block 45 rolls on the first cylindrical roller 44 and acts on the arc-shaped elastic piece body 731, and further acts on the first spring 47, and thus, the bridge pier 1 and the two bridge decks 5 are organically connected into a whole by the, two bridge floors 5 interact to act on pier 1, pier 1 counteracts two bridge floors 5 again simultaneously, and its horizontal direction shock attenuation effect is obvious. The third connecting block 72 comprises a third connecting block body 721, the third connecting block body 721 is provided with a clamping groove 722, the clamping groove 722 is clamped with a clamping key 732, one end of a first elastic sheet 724 is fixed on the bottom surface of the clamping groove 722, the other end of the first elastic sheet 724 is fixed on the bottom surface of an elastic pad 723, when two bridge deck 5 shakes to extrude the arc-shaped elastic sheet 731, the arc-shaped elastic sheet 731 extrudes the clamping key 732, then the elastic pad 723 is compressed to extrude the first elastic sheet 724, and the two bridge deck 5 shakes to drive a second connecting block 6 to shake to cause the rectangular connecting piece body 71 to compress the arc-shaped elastic sheet 731 to extrude the clamping key 732 again, then the elastic pad 723 to extrude the first elastic sheet 724, so that the damping effect is enhanced again, a plurality of rubber arc-shaped protrusions 63 are fixed on the bottom surface of the. The cuboid cover body 8 is fixed on the top surface of the gap 10, so that sundries are prevented from entering the gap 10, damage of the sundries to connecting pieces in the gap 10 is prevented, and the shock absorption effect is guaranteed. Connecting rods 9 are symmetrically fixed on two side surfaces of the cuboid supporting block 3, the other ends of the connecting rods 9 are fixed on the edge of the bottom surface of the bridge floor 5, the connection between the pier 1 and the two bridge floors 5 is enhanced, and the integral anti-seismic effect of the invention is improved.

In addition, as further claimed in the invention, the elastic device 48 comprises an elastic device body 481, a third rectangular parallelepiped groove 487 is formed in the top surface of the elastic device body 481, one end of a second elastic sheet 486 is fixed to the bottom surface of the third rectangular parallelepiped groove 487, the other end of the second elastic sheet 486 is fixed to the bottom surface of a rectangular parallelepiped spring block 482, a semicircular groove 483 is formed in the top surface of the rectangular parallelepiped spring block 482, the semicircular groove 483 is in press fit with a plurality of second cylindrical rollers 484, the second cylindrical rollers 484 are sleeved on a fixing frame 485, and the second cylindrical rollers 484 are in press fit with the first cylindrical rollers 44. When the bridge deck 5 shakes, the extruded rectangular connecting piece body 71 pulls the cuboid rolling blocks 45 to roll on the first cylindrical rollers 44, on one hand, the second cylindrical rollers 484 are in pressure connection with the first cylindrical rollers 44, the first cylindrical rollers 44 roll more smoothly, on the other hand, the first cylindrical rollers 44 extrude the second cylindrical rollers 484 in the rolling process, thereby pressing the rectangular parallelepiped spring 482 and compressing the second spring 486, while the curved spring body 731 presses the catch 732, the compression spring washer 723 presses the first spring plate 724, the bridge surface 5 vibrates to drive the second connecting block 6 to vibrate, the triangular prism stopper 62 drives the rectangular rolling block 45 to vibrate, the rectangular rolling block 45 rolls on the first cylindrical roller 44, the arc-shaped spring body 731 presses the clamping key 732 again, the compression spring 723 presses the first resilient plate 724, thereby increasing the shock-absorbing effect again, and the resilient means 48 promotes the rolling and resilient pressing of the first cylindrical roller 44 in the vertical direction again.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a flexible joint structure of bridge, includes cylindrical pier (1) and two bridge floors (5), cylindrical pier (1) top surface is fixed with four terrace with edge supporting shoes (2), and four terrace with edge supporting shoes (2) top surface is fixed with cuboid supporting shoe (3), its characterized in that: the top surface of the cuboid supporting block (3) is fixed with a first connecting block (4), the bottom surface of the bridge deck (5) is fixed with a second connecting block (6), the first connecting block (4) and the second connecting block (6) are in compression joint, a gap (10) is arranged between the two bridge decks (5), the gap (10) is in compression joint with a connecting piece (7), the bottom of the connecting piece (7) is fixed on the top surface of the first connecting block (4), the first connecting block (4) comprises a first connecting block body (41), prismatic table grooves (42) are symmetrically fixed on the top surface of the first connecting block body (41), a cuboid through groove (43) is arranged on the side surface of the first connecting block body (41), a plurality of elastic devices (48) are fixed on the bottom surface of the cuboid through groove (43), a first cylindrical roller (44) is in compression joint on the top of the elastic devices (48), one end of a first spring (47) is symmetrically connected to the side surface of the cuboid through groove (43), the, the top surface of a cuboid rolling block (45) is provided with a first cuboid groove (46), the bottom surface of the cuboid rolling block (45) is in compression joint with the side surface of a first cylinder roller (44), a second connecting block (6) comprises a second connecting block body (61), a triangular prism stop block (62) is fixed at the center of the bottom surface of the second connecting block body (61), the second connecting block body (61) is in compression joint with a prism table groove (42), the triangular prism stop block (62) is in compression joint with the first cuboid groove (46), a connecting piece (7) comprises two rectangular connecting piece bodies (71) which are arranged in parallel, two rows of third connecting blocks (72) are fixed in parallel on the side surface of each rectangular connecting piece body (71), the two ends of an arc-shaped elastic piece (73) are in clamping joint with the third connecting blocks (72), the two rectangular connecting piece bodies (71) are connected through a plurality of second springs (74), the bottom surface of each rectangular connecting piece, arc bullet spare (73) are including arc bullet spare body (731), and arc bullet spare body (731) both ends symmetry is fixed with card key (732), and arc bullet spare body (731) lateral surface center is fixed with cuboid arch (733), and cuboid arch (733) side is fixed with arc portion (734), bridge floor (5) are including bridge floor body (51), a plurality of cuboid connecting pieces (52) of bridge floor body (51) side, and cuboid connecting piece (52) top surface is equipped with second cuboid recess (53), and second cuboid recess (53) bottom surface is fixed with cuboid rubber pad (54), and cuboid rubber pad (54) top surface is equipped with arc recess (55), arc recess (55) and arc portion (734) crimping.

2. The bridge flexible joint structure of claim 1, wherein: the third connecting block (72) comprises a third connecting block body (721), a clamping groove (722) is formed in the third connecting block body (721), the clamping groove (722) is clamped with a clamping key (732), one end of a first elastic sheet (724) is fixed to the bottom surface of the clamping groove (722), and the other end of the first elastic sheet (724) is fixed to the bottom surface of an elastic pad (723).

3. The bridge flexible joint structure of claim 1, wherein: a plurality of rubber arc-shaped protrusions (63) are fixed on the bottom surface of the second connecting block body (61).

4. The bridge flexible joint structure of claim 1, wherein: a cuboid cover body (8) is fixed on the top surface of the gap (10).

5. The bridge flexible joint structure of claim 1, wherein: connecting rods (9) are symmetrically fixed on two side faces of the cuboid supporting block (3), and the other ends of the connecting rods (9) are fixed on the edge of the bottom face of the bridge deck (5).