Arch bridge reinforcing and connecting mechanism

Abstract

The invention belongs to the field of arch bridge reinforcement, and particularly relates to an arch bridge reinforcement connecting mechanism which comprises two arch ribs and two bridge railings which are fixedly arranged on the upper portion of a bridge floor and symmetrically distributed front and back, a plurality of suspenders distributed in a linear array mode are fixedly arranged between the arch ribs and the bridge floor, and the heights of the suspenders are gradually decreased from the middle to the two sides. A reinforcing mechanism is arranged at the lower end of the outer side of the lifting rod and comprises two semicircular clamping plates which are arranged on the outer side of the lifting rod and distributed in a bilateral symmetry mode, the two semicircular clamping plates are connected through a plurality of first bolts, and inclined supporting plates are rotationally arranged on the sides, away from the lifting rod, of the semicircular clamping plates. Through cooperation of the reinforcing mechanisms and the suspenders, the load resisting capacity of the arch bridge can be greatly improved, meanwhile, the multiple reinforcing mechanisms, the suspenders and the arch ribs can be connected into a whole, the integrity and stability of the structure are further enhanced, and the capacity of the arch bridge for resisting various loads is improved.

Description

Technical Field

[0001] The invention belongs to the field of arch bridge reinforcement, and in particular relates to an arch bridge reinforcement connection mechanism. Background Art

[0002] With the continuous development of transportation infrastructure, the suspender arch bridge, as a bridge form with beautiful shape and strong spanning capacity, has been widely used in transportation fields such as highways and urban roads. It mainly relies on the suspenders to transfer the bridge deck load to the arch ribs, and then the arch ribs disperse the force to the bridge piers, thereby realizing the bearing function of the bridge.

[0003] However, this type of structure that relies solely on hangers to support the arch ribs has many problems in the long-term use process. Since the hangers bear almost all the loads transmitted from the bridge deck, the force on them is extremely concentrated. At the same time, with the continuous growth of traffic volume and the frequent passage of heavy vehicles, the loads on the hangers continue to rise, and they are in a high stress state for a long time, which can easily cause fatigue damage to the hangers. In severe cases, it may even lead to the loss of the load-bearing capacity of the hangers, endangering the overall safety of the bridge. Summary of the invention

[0004] In view of the above problems, an embodiment of the present application provides an arch bridge reinforcement connection mechanism, which not only improves the ability of the arch bridge to resist lateral forces, but also enhances the load resistance of the arch bridge under various complex working conditions.

[0005] In order to achieve the above-mentioned purpose, the embodiments of the present application provide the following technical solutions: The present invention provides an arch bridge reinforcement connection mechanism, comprising two arch ribs and two bridge rails fixedly arranged on the upper part of the bridge deck and symmetrically distributed front and back, a plurality of hangers distributed in a linear array are fixedly arranged between the arch ribs and the bridge deck, the heights of the plurality of hangers gradually decrease from the middle to both sides, and a reinforcement mechanism is arranged at the outer lower end of the hanger.

[0006] The reinforcement mechanism includes two semicircular splints arranged on the outside of the hanger and distributed symmetrically on the left and right sides, and the two semicircular splints are connected by multiple first bolts. A diagonal support plate is rotatably arranged on the side of the semicircular splint away from the hanger. A first groove is opened on the bottom of the diagonal support plate close to the bridge deck, and a first support assembly is arranged in the first groove. A second groove is opened on the upper part of the diagonal support plate, and a second support assembly is arranged in the second groove. Two adjacent second support assemblies are connected by second bolts.

[0007] A third supporting assembly for reinforcing the bridge railing is arranged on one side of the diagonal bracing plate close to the bridge railing.

[0008] According to a favorable embodiment, the first supporting assembly includes a slide plate slidably arranged in the first groove, a connecting plate is rotatably arranged at the lower end of the slide plate, the bottom of the connecting plate passes through the first groove and is fixedly provided with a bottom plate, the bottom plate is connected to the upper part of the bridge deck through a plurality of third bolts, and a fourth bolt is threadedly arranged on one side of the diagonal support plate close to the bridge railing, one end of the fourth bolt passes through the first groove and abuts against one side of the slide plate.

[0009] According to a preferred embodiment, the second support assembly includes a first support plate rotatably arranged in the second groove, a sliding groove is provided on a side of the first support plate away from the semicircular clamping plate, a second support plate is slidably arranged in the sliding groove, one side of the second support plate passes through the sliding groove, a fifth bolt is threadedly arranged on the upper part of the first support plate, and the bottom end of the fifth bolt passes through the sliding groove and abuts against the upper part of the second support plate.

[0010] According to a preferred embodiment, a first U-shaped block is fixedly provided on the right side of the second support plate located on the right side of the same reinforcement mechanism, and a first mounting block is fixedly provided on the left side of the second support plate located on the left side of the same reinforcement mechanism, and adjacent first U-shaped blocks are connected to the first mounting blocks by second bolts.

[0011] According to a favorable embodiment, a rectangular groove connected to the second groove is provided inside the diagonal support plate, a slider is slidably arranged in the rectangular groove, a support rod is hingedly arranged between the slider and the first support plate, a circular groove is provided at the bottom of the slider, and a limiting mechanism for limiting the slider is arranged inside the circular groove.

[0012] According to a favorable embodiment, the limiting mechanism includes a round block slidably arranged inside the circular groove, a connecting rod is fixedly arranged at the lower end of the round block, and the connecting rod passes through the circular groove on the side away from the round block. A spring is sleeved on the outer side of the connecting rod, and the two ends of the spring are respectively connected to the round block and the inner wall of the circular groove. A connecting block with a waist-shaped structure is rotatably arranged on the end of the connecting rod passing through the circular groove, and a pull ring is fixedly arranged on the end of the connecting block away from the connecting rod.

[0013] According to a favorable embodiment, a limiting groove connected to the rectangular groove is formed at the bottom of the diagonal support plate, and a plurality of limiting openings are formed at the front and rear sides of the limiting groove at the bottom of the diagonal support plate. The limiting openings are connected to the limiting groove, and the connecting block is clamped with the corresponding two limiting openings.

[0014] According to a favorable embodiment, the third support assembly includes a first reinforcement plate rotatably arranged on a side of the diagonal support plate close to the bridge railing, a second reinforcement plate is slidably arranged on a side of the first reinforcement plate away from the diagonal support plate, a sixth bolt is threadedly arranged on the upper portion of the first reinforcement plate, the bottom end of the sixth bolt penetrates into the interior of the first reinforcement plate and abuts against the second reinforcement plate, a disc is fixedly arranged on a side of the second reinforcement plate away from the first reinforcement plate, and the disc is connected to the bridge railing by a plurality of circumferentially distributed seventh bolts.

[0015] According to a preferred embodiment, a second U-shaped block is fixedly provided at the inner left end of the arch rib, and the second U-shaped block is connected to the first mounting block located on the far left by an eighth bolt, and a second mounting block is fixedly provided at the inner right end of the arch rib, and the second mounting block is connected to the first U-shaped block located on the far right by a ninth bolt.

[0016] Compared with the prior art, the arch bridge reinforcement connection mechanism provided by the embodiment of the present invention has the following beneficial effects:

[0017] 1. The present invention can greatly improve the ability of the arch bridge to resist loads through the cooperation of the reinforcement mechanism and the hanger rod. At the same time, multiple reinforcement mechanisms, hangers and arch ribs can be connected as one, further enhancing the integrity and stability of the structure, thereby improving the ability of the arch bridge to resist various loads.

[0018] 2. The present invention provides a first support assembly. After the base plate is connected to the bridge deck by rotating the diagonal support plate, a stable triangular support structure is formed between the diagonal support plate, the base plate, the hanger and the bridge deck, which can effectively disperse and resist the load from the arch bridge, greatly enhance the stability of the arch bridge in the horizontal direction, and greatly improve the ability of the arch bridge to resist side loads.

[0019] 3. The present invention provides a second support assembly. After the use positions of the first support plate and the second support plate are adjusted, multiple second support plates are connected and the second support plates on the leftmost and rightmost sides are connected to the arch ribs, so that multiple reinforcement mechanisms, hangers and arch ribs form a closely connected whole, which greatly enhances the load resistance of the arch bridge under various complex working conditions.

[0020] 4. The present invention provides a third support assembly, which connects the disc to the bridge railing through the cooperation of the first reinforcement plate and the second reinforcement plate, which not only enhances the stability of the bridge railing itself, but also further enhances the stability of the entire arch bridge structure through the synergy between the bridge railing and the diagonal bracing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the present invention.

[0022] Figure 2It is a partial structural diagram of the present invention.

[0023] Figure 3 for Figure 2 A magnified view of the structure in part A.

[0024] Figure 4 It is a partial structural diagram of the reinforcement mechanism in the present invention.

[0025] Figure 5 It is a partial cross-sectional structural diagram of the reinforcement mechanism in the present invention.

[0026] Figure 6 for Figure 5 A magnified view of the structure of part B.

[0027] Figure 7 It is a partial connection structure diagram of the third supporting assembly and the bridge railing in the present invention.

[0028] Figure 8 It is a cross-sectional structural diagram of the connection between the slider and the limiting mechanism in the present invention.

[0029] Fig. 9 It is a partial connection structure diagram of the arch rib and the leftmost second support plate in the present invention.

[0030] Fig.10 for Fig. 9 A magnified view of the structure of part C.

[0031] Fig.11 It is a partial connection structure diagram of the arch rib and the second rightmost supporting plate in the present invention.

[0032] Fig.12 for Fig.11 A magnified view of the structure of part D in the middle.

[0033] The reference numerals in the figure are as follows: 1, bridge deck; 2, arch rib; 3, bridge rail; 4, hanger; 5, reinforcement mechanism; 51, semicircular clamp; 52, first bolt; 53, diagonal brace plate; 54, first groove; 55, first support assembly; 551, slide plate; 552, connecting plate; 553, bottom plate; 554, third bolt; 555, fourth bolt; 56, second groove; 57, second support assembly; 571, first support plate; 572, second support plate; 573, fifth bolt; 58, third support assembly; 581, first reinforcement Fixed plate; 582, second reinforcement plate; 583, sixth bolt; 584, disc; 585, seventh bolt; 6, second bolt; 7, first U-shaped block; 8, first mounting block; 9, rectangular groove; 10, slider; 11, support rod; 12, circular groove; 13, limiting mechanism; 131, circular block; 132, connecting rod; 133, spring; 134, connecting block; 135, pull ring; 14, limiting groove; 15, limiting opening; 16, second U-shaped block; 17, eighth bolt; 18, second mounting block; 19, ninth bolt. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-12 This application is further described in detail.

[0035] Please refer to Figure 1 A reinforcement connection mechanism for an arch bridge includes two arch ribs 2 and two bridge rails 3 fixedly arranged on the upper part of a bridge deck 1 and distributed symmetrically in front and back. A plurality of hangers 4 distributed in a linear array are fixedly arranged between the arch ribs 2 and the bridge deck 1. The heights of the hangers 4 gradually decrease from the middle to both sides. A reinforcement mechanism 5 is arranged at the outer lower end of the hanger 4.

[0036] See also Figure 2 , Figure 3 , Figure 4 and Figure 5 The reinforcement mechanism 5 includes two semicircular clamping plates 51 arranged on the outside of the suspension rod 4 and distributed symmetrically, and the two semicircular clamping plates 51 are connected by a plurality of first bolts 52. A diagonal support plate 53 is rotatably arranged on the side of the semicircular clamping plate 51 away from the suspension rod 4. A first groove 54 is provided at the bottom of the diagonal support plate 53 close to the bridge deck 1. A first support assembly 55 is arranged in the first groove 54. A second groove 56 is provided at the upper part of the diagonal support plate 53. A second support assembly 57 is arranged in the second groove 56. Two adjacent second support assemblies 57 are connected by second bolts 6. A third support assembly 58 for reinforcing the bridge rail 3 is arranged on the side of the diagonal support plate 53 close to the bridge rail 3.

[0037] By setting the reinforcement mechanism 5 on the outside of the hanger 4, and then using the cooperation of the first support component 55 and the diagonal support plate 53, a stable triangular structure can be formed with the hanger 4, greatly improving the ability of the arch bridge to resist loads, and then through the cooperation of the second support component 57 and the second bolt 6, multiple reinforcement mechanisms 5, hangers 4 and arch ribs 2 can be connected as one, further enhancing the integrity and stability of the structure, and improving the ability of the arch bridge to resist various loads. In addition, the bridge railing 3 can be additionally reinforced through the third support component 58, further improving the overall stability and safety of the arch bridge.

[0038] See also Figure 4 and Figure 5 The first supporting assembly 55 includes a slide plate 551 slidably arranged in the first groove 54, a connecting plate 552 is rotatably arranged at the lower end of the slide plate 551, the bottom of the connecting plate 552 passes through the first groove 54 and is fixedly provided with a bottom plate 553, the bottom plate 553 is connected to the upper part of the bridge deck 1 through a plurality of third bolts 554, and a fourth bolt 555 is threadedly arranged on one side of the diagonal support plate 53 close to the bridge railing 3, one end of the fourth bolt 555 passes through the first groove 54 and abuts against one side of the slide plate 551.

[0039] In order to improve the load resistance of the arch bridge, two semicircular clamping plates 51 are installed on the outer side of the hanger 4, and then the two semicircular clamping plates 51 are fixed by the first bolts 52, and then the diagonal support plate 53 is rotated to a suitable angle. After the diagonal support plate 53 is rotated to the right angle, the bottom plate 553 is pulled downward to move. At this time, the movement of the bottom plate 553 will drive the connecting plate 552 connected thereto to move, so that the slide plate 551 slides smoothly in the first groove 54. When the bottom plate 553 moves to fully contact with the bridge deck 1, The third bolt 554 can be tightened to fix the bottom plate 553, and the bottom plate 553 can be rotated so that the bottom plate 553 can better fit the bridge deck 1 when in contact with the bridge deck 1. Then, the third bolt 554 can be used to tighten the rear side of the slide plate 551 to achieve the limited fixation of the slide plate 551. At this time, a stable triangular support structure is formed among the diagonal support plate 53, the bottom plate 553, the bridge deck 1 and the hanger 4, which greatly enhances the stability of the arch bridge in the horizontal direction, thereby greatly improving the ability of the arch bridge to resist loads.

[0040] See also Figure 4 The second support assembly 57 includes a first support plate 571 rotatably arranged in the second groove 56, a sliding groove is opened on the side of the first support plate 571 away from the semicircular clamping plate 51, a second support plate 572 is slidably arranged in the sliding groove, one side of the second support plate 572 passes through the sliding groove, and a fifth bolt 573 is threadedly arranged on the upper part of the first support plate 571, and the bottom end of the fifth bolt 573 passes through the sliding groove and abuts against the upper part of the second support plate 572.

[0041] See also Figure 5 , Figure 6 and Figure 8 A rectangular groove 9 connected to the second groove 56 is provided inside the diagonal support plate 53, a slider 10 is slidably arranged in the rectangular groove 9, a support rod 11 is hingedly arranged between the slider 10 and the first support plate 571, a circular groove 12 is provided at the bottom of the slider 10, and a limiting mechanism 13 for limiting the slider 10 is arranged inside the circular groove 12.

[0042] See also Figure 8 The limiting mechanism 13 includes a round block 131 slidably arranged inside the circular groove 12, a connecting rod 132 is fixedly arranged at the lower end of the round block 131, and the connecting rod 132 passes through the circular groove 12 on the side away from the round block 131, and a spring 133 is sleeved on the outer side of the connecting rod 132, and the two ends of the spring 133 are respectively connected to the round block 131 and the inner wall of the circular groove 12, and one end of the connecting rod 132 passing through the circular groove 12 is rotatably provided with a connecting block 134 with a waist-shaped structure, and a pull ring 135 is fixedly arranged on the end of the connecting block 134 away from the connecting rod 132.

[0043] See also Figure 6 A limiting groove 14 connected to the rectangular groove 9 is provided at the bottom of the diagonal support plate 53, and a plurality of limiting openings 15 are provided on both the front and rear sides of the limiting groove 14 at the bottom of the diagonal support plate 53. The limiting openings 15 are connected to the limiting groove 14, and the connecting block 134 is clamped with the corresponding two limiting openings 15.

[0044] In order to facilitate the adjustment of the use angle of the second support plate 572, during the rotation of the first support plate 571, the pull ring 135 can be pulled first to drive the connecting block 134 to move. The movement of the connecting block 134 will drive the connecting rod 132 to move. The movement of the connecting rod 132 drives the round block 131 to move and squeeze the spring 133. When the connecting block 134 moves out of the corresponding two limiting openings 15, the connecting block 134 is rotated and the pull ring 135 is released. At this time, the elastic force of the spring 133 can drive the connecting block 134 to move into the limiting groove 14, thereby canceling the limiting locking of the slider 10. Then, the second support plate 572 is pulled to drive the first support plate 5 71 rotates, the first support plate 571 rotates and the support rod 11 can drive the slider 10 to slide in the rectangular groove 9. At this time, the connecting block 134 also slides in the limiting groove 14. When the second support plate 572 moves to a suitable use position, the pull ring 135 can be pulled again to drive the connecting block 134 to move out of the limiting groove 14, and then the connecting block 134 is rotated to align it with the corresponding two limiting openings 15 and then the pull ring 135 is released again. Then, the elastic force of the spring 133 can make the connecting block 134 re-positioned in the corresponding two limiting openings 15, and the slider 10 is re-limited and locked, so as to facilitate the adjustment of the use angle of the second support plate 572.

[0045] See also Figure 3 A first U-shaped block 7 is fixedly provided on the right side of the second support plate 572 located on the right side of the same reinforcement mechanism 5, and a first mounting block 8 is fixedly provided on the left side of the second support plate 572 located on the left side of the same reinforcement mechanism 5, and the adjacent first U-shaped blocks 7 and first mounting blocks 8 are connected by second bolts 6.

[0046] See also Fig. 9 , Fig.10 , Fig.11 and Fig.12 A second U-shaped block 16 is fixedly provided at the inner left end of the arch rib 2, and the second U-shaped block 16 is connected to the first mounting block 8 located on the far left by an eighth bolt 17. A second mounting block 18 is fixedly provided at the inner right end of the arch rib 2, and the second mounting block 18 is connected to the first U-shaped block 7 located on the far right by a ninth bolt 19.

[0047] In order to further improve the load resistance of the arch bridge during use, after the diagonal support plate 53 is installed, the second support plate 572 can be pulled to drive the first support plate 571 to rotate. At this time, the first support plate 571 is moved out of the second groove 56. After the second support plate 572 is moved to a suitable angle, the use angle of the second support plate 572 can be fixed by the cooperation of the connecting block 134 and the limit opening 15, and then the length of the two adjacent first support plates 571 can be adjusted by screwing the fifth bolt 573, so that the first mounting block 8 and the mounting holes on the first U-shaped block 7 are aligned, and at the same time, ensure that the second U-shaped block 16 is aligned with the first U-shaped block 16 located on the leftmost side. The mounting holes on the mounting block 8 are aligned, and the second mounting block 18 is aligned with the mounting hole of the first U-shaped block 7 located on the far right. After completing the above alignment operation, the adjacent first mounting block 8 and the first U-shaped block 7 are connected by the second bolt 6, the second U-shaped block 16 is connected to the first mounting block 8 located on the far left by the eighth bolt 17, and the second mounting block 18 is connected to the first U-shaped block 7 located on the far right by the ninth bolt 19. At this time, multiple reinforcement mechanisms 5, hangers 4 and arch ribs 2 cooperate with each other to form a closely connected whole, so that the load can be effectively dispersed, thereby greatly enhancing the load resistance of the arch bridge under various complex working conditions.

[0048] See also Figure 7The third support assembly 58 includes a first reinforcing plate 581 rotatably arranged on the side of the diagonal support plate 53 close to the bridge rail 3, a second reinforcing plate 582 is slidably arranged on the side of the first reinforcing plate 581 away from the diagonal support plate 53, a sixth bolt 583 is threadedly arranged on the upper part of the first reinforcing plate 581, the bottom end of the sixth bolt 583 penetrates into the interior of the first reinforcing plate 581 and abuts against the second reinforcing plate 582, a disc 584 is fixedly arranged on the side of the second reinforcing plate 582 away from the first reinforcing plate 581, and the disc 584 is connected to the bridge rail 3 by a plurality of circumferentially distributed seventh bolts 585.

[0049] In order to reinforce the bridge railing 3, after the diagonal brace plate 53 is installed, the first reinforcement plate 581 can be rotated, and then the sixth bolt 583 can be screwed to adjust the use position of the second reinforcement plate 582, so that the disc 584 gradually approaches the bridge railing 3 until it is in close contact with the bridge railing 3, and then the sixth bolt 583 is tightened to limit and lock the second reinforcement plate 582, so that the disc 584 is not easy to move during installation, and then the seventh bolt 585 is used to connect the disc 584 to the bridge railing 3. Through this connection method, the bridge railing 3 and the diagonal brace plate 53 are closely linked to form a mutually supporting structural system, which not only enhances the stability of the bridge railing 3 itself, but also further enhances the lateral stability of the entire arch bridge through the synergistic effect between the bridge railing 3 and the diagonal brace plate 53.

[0050] During the specific operation, each reinforcement mechanism 5 is first installed on the corresponding hanger 4, and then the base plate 553 is connected to the bridge deck 1. A stable triangular support structure is formed between the diagonal support plate 53, the base plate 553, the bridge deck 1 and the hanger 4, which greatly enhances the stability of the arch bridge in the horizontal direction.

[0051] At the same time, the second support plate 572 is pulled to drive the first support plate 571 to move out of the second groove 56, and then the adjacent first mounting block 8 and the first U-shaped block 7 are connected by the second bolt 6, so that the two adjacent reinforcement mechanisms 5 can be connected, and then the second U-shaped block 16 is connected to the first mounting block 8 located on the far left by the eighth bolt 17, and the second mounting block 18 is connected to the first U-shaped block 7 located on the far right by the ninth bolt 19. At this time, multiple reinforcement mechanisms 5, hangers 4 and arch ribs 2 cooperate with each other to form a closely connected whole, which can effectively disperse the load, thereby greatly enhancing the load resistance of the arch bridge under various complex working conditions.

[0052] Furthermore, after the diagonal brace plate 53 is installed, the seventh bolt 585 is used to connect the disc 584 to the bridge railing 3. This connection method closely links the bridge railing 3 and the diagonal brace plate 53 to form a mutually supporting structural system, which not only enhances the stability of the bridge railing 3 itself, but also further enhances the stability of the entire arch bridge structure through the synergistic effect between the bridge railing 3 and the diagonal brace plate 53.

[0053] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An arch bridge reinforcement connection mechanism, comprising two arch ribs (2) and two bridge rails (3) fixedly arranged on the upper part of a bridge deck (1) and distributed symmetrically in front and back, characterized in that: A plurality of suspension rods (4) distributed in a linear array are fixedly arranged between the arch rib (2) and the bridge deck (1), the heights of the plurality of suspension rods (4) gradually decrease from the middle to both sides, and a reinforcement mechanism (5) is arranged at the lower end of the outer side of the suspension rod (4); The reinforcement mechanism (5) comprises two semicircular clamping plates (51) arranged on the outer side of the suspension rod (4) and distributed symmetrically on the left and right sides, and the two semicircular clamping plates (51) are connected by a plurality of first bolts (52), a diagonal support plate (53) is rotatably arranged on the side of the semicircular clamping plate (51) away from the suspension rod (4), a first groove (54) is provided at the bottom of the diagonal support plate (53) on the side close to the bridge deck (1), a first support assembly (55) is arranged in the first groove (54), a second groove (56) is provided at the upper part of the diagonal support plate (53), a second support assembly (57) is arranged in the second groove (56), and two adjacent second support assemblies (57) are connected by a second bolt (6); A third support assembly (58) for reinforcing the bridge rail (3) is provided on one side of the diagonal support plate (53) close to the bridge rail (3).

2. The arch bridge reinforcement connection mechanism according to claim 1, characterized in that: The first support assembly (55) comprises a slide plate (551) slidably arranged in the first groove (54); a connecting plate (552) is rotatably arranged at the lower end of the slide plate (551); the bottom of the connecting plate (552) passes through the first groove (54) and is fixedly provided with a bottom plate (553); the bottom plate (553) is connected to the upper part of the bridge deck (1) through a plurality of third bolts (554); a fourth bolt (555) is threadedly arranged on one side of the diagonal support plate (53) close to the bridge railing (3); one end of the fourth bolt (555) passes through the first groove (54) and abuts against one side of the slide plate (551).

3. The arch bridge reinforcement connection mechanism according to claim 1, characterized in that: The second support assembly (57) includes a first support plate (571) rotatably arranged in the second groove (56), and a sliding groove is provided on the side of the first support plate (571) away from the semicircular clamping plate (51), and a second support plate (572) is slidably arranged in the sliding groove, and one side of the second support plate (572) passes through the sliding groove, and a fifth bolt (573) is threadedly arranged on the upper part of the first support plate (571), and the bottom end of the fifth bolt (573) passes through the sliding groove and abuts against the upper part of the second support plate (572).

4. The arch bridge reinforcement connection mechanism according to claim 3, characterized in that: A first U-shaped block (7) is fixedly arranged on the right side of the second support plate (572) located on the right side of the same reinforcement mechanism (5), and a first mounting block (8) is fixedly arranged on the left side of the second support plate (572) located on the left side of the same reinforcement mechanism (5), and adjacent first U-shaped blocks (7) and first mounting blocks (8) are connected via second bolts (6).

5. The arch bridge reinforcement connection mechanism according to claim 3, characterized in that: A rectangular groove (9) communicating with the second groove (56) is provided inside the diagonal support plate (53), a slider (10) is slidably arranged inside the rectangular groove (9), a support rod (11) is hingedly arranged between the slider (10) and the first support plate (571), a circular groove (12) is provided at the bottom of the slider (10), and a limiting mechanism (13) for limiting the slider (10) is provided inside the circular groove (12).

6. The arch bridge reinforcement connection mechanism according to claim 5, characterized in that: The limiting mechanism (13) comprises a round block (131) slidably arranged inside the circular groove (12); a connecting rod (132) is fixedly arranged at the lower end of the round block (131); a side of the connecting rod (132) away from the round block (131) passes through the circular groove (12); a spring (133) is sleeved on the outer side of the connecting rod (132); two ends of the spring (133) are respectively connected to the round block (131) and the inner wall of the circular groove (12); one end of the connecting rod (132) passing through the circular groove (12) is rotatably provided with a connecting block (134) with a waist-shaped structure; and a pull ring (135) is fixedly arranged at one end of the connecting block (134) away from the connecting rod (132).

7. The arch bridge reinforcement connection mechanism according to claim 6, characterized in that: The bottom of the diagonal support plate (53) is provided with a limiting groove (14) which is in communication with the rectangular groove (9); the bottom of the diagonal support plate (53) is provided with a plurality of limiting openings (15) on both the front and rear sides of the limiting groove (14); the limiting openings (15) are in communication with the limiting groove (14), and the connecting block (134) is clamped with the corresponding two limiting openings (15).

8. The arch bridge reinforcement connection mechanism according to claim 1, characterized in that: The third support assembly (58) comprises a first reinforcing plate (581) rotatably arranged on a side of the diagonal support plate (53) close to the bridge rail (3); a second reinforcing plate (582) is slidably arranged on a side of the first reinforcing plate (581) away from the diagonal support plate (53); a sixth bolt (583) is threadedly arranged on the upper portion of the first reinforcing plate (581); the bottom end of the sixth bolt (583) penetrates into the interior of the first reinforcing plate (581) and abuts against the second reinforcing plate (582); a disc (584) is fixedly arranged on a side of the second reinforcing plate (582) away from the first reinforcing plate (581); and the disc (584) is connected to the bridge rail (3) by a plurality of circumferentially distributed seventh bolts (585).

9. The arch bridge reinforcement connection mechanism according to claim 4, characterized in that: A second U-shaped block (16) is fixedly provided at the inner left end of the arch rib (2), and the second U-shaped block (16) is connected to the first mounting block (8) located at the far left by an eighth bolt (17); a second mounting block (18) is fixedly provided at the inner right end of the arch rib (2), and the second mounting block (18) is connected to the first U-shaped block (7) located at the far right by a ninth bolt (19).

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