A waterproof bridge expansion joint structure and construction method

Abstract

The present invention discloses a waterproof bridge expansion joint structure and construction method, the structure includes a telescopic component, the telescopic component is movably arranged inside a slot opened in a bridge structure main body, the telescopic component is used to slow down the kinetic energy of the bridge structure main body; a sealing component, the sealing component is fixedly arranged at the bottom ends of two groups of telescopic components, the sealing component is used to protect the upper end of the bridge structure main body from stains and rainwater; the bridge structure main body is vibrated, the telescopic component, the sealing component, the colloid component, and the supporting energy dissipation component can dissipate energy and reduce shock, a number of the long anchor steel bars and a number of the short anchor steel bars pass through the central base and are fixedly arranged inside the bridge structure main body, which can provide fixed support for the bridge structure main body, so that the connection between the bridge structure main bodies is more stable and firm.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge engineering, and in particular to a waterproof bridge expansion joint structure and a construction method. Background Art

[0002] Bridge expansion joints are typically installed between beam ends, between beam ends and abutments, or at hinged joints to accommodate bridge deck deformation. These joints must be able to expand and contract freely in both directions parallel and perpendicular to the bridge axis, be strong and reliable, and prevent rainwater, garbage, and soil from seeping in and blocking them. Installation, inspection, maintenance, and dirt removal must be simple and convenient. However, existing waterproof bridge expansion joint structures still face the following challenges:

[0003] (1) The waterproof structure will be damaged under the influence of dust and acid rain during long-term use, resulting in waterproof problems. At this time, the water retaining parts or waterproof parts need to be replaced. However, since the waterproof parts are fixed inside, the waterproof parts inside cannot be replaced, resulting in the inability to repair the waterproof structure;

[0004] (2) The expansion and contraction directions of existing bridge expansion joints are opposite, and their energy dissipation angles and directions are very limited. The force unloading and buffering effect is average. In addition, the connection between the expansion joint and the side wall of the bridge groove is prone to loosening during long-term use, resulting in cracks at the connection, which affects the quality of the bridge. Summary of the Invention

[0005] In order to achieve the above-mentioned purpose, an embodiment of the present invention provides a waterproof bridge expansion joint structure, which is fixedly connected to the bridge structure body through a plurality of the short anchor steel bars and a plurality of the long anchor steel bars, so that the connection between the bridge structure bodies is more stable, and at the same time, the pressure generated at the upper end can be buffered longitudinally and transversely.

[0006] In order to achieve the above object, according to one aspect of the present invention, a waterproof bridge expansion joint structure is provided, comprising

[0007] a telescopic component, the telescopic component being movably disposed in a slot provided in the main body of the bridge structure, the telescopic component being used to reduce kinetic energy of the main body of the bridge structure;

[0008] A sealing component, the sealing component is fixedly arranged at the bottom ends of the two groups of telescopic components, and the sealing component is used to protect the upper end of the bridge structure from stains and rainwater;

[0009] A colloid component, the colloid component being fixedly disposed between the slot of the bridge structure body and the connection point of the telescopic component, the colloid component being used to provide buffering and sealing for the slot of the bridge structure body and the telescopic component;

[0010] A supporting energy dissipating component, wherein the supporting energy dissipating component is fixedly arranged between the bridge structure body and the interior of the telescopic component;

[0011] a waterproof component, the waterproof component being fixedly arranged at the lower end of the sealing component and being used to prevent rainwater from entering the interior of the bridge structure body;

[0012] The bridge structure body is vibrated, and the telescopic components, sealing components, colloid components, and supporting energy-dissipating components can dissipate energy and reduce vibration.

[0013] Furthermore, the telescopic component includes:

[0014] Splicing cover plates, wherein two sets of the splicing cover plates are mirror-image-shaped and movably arranged at the upper end of the slots of the bridge structure body, and the two sets of the splicing cover plates are used to provide buffering and expansion space for the slots of the bridge structure body;

[0015] Card slots, wherein two groups of card slots are mirror-imaged and opened on both sides of the upper end of the opening slot of the bridge structure body, and the two groups of card slots are used to provide space for the two groups of spliced ​​cover plates to move;

[0016] Fixed steel plates, two groups of fixed steel plates are fixedly arranged in the two groups of slots in a mirror-image manner, and the two groups of fixed steel plates are used to provide fixed and movable space for the two groups of spliced ​​cover plates;

[0017] The movable parts are mirror-image-shaped and movable in two groups, and are arranged between the two groups of spliced ​​cover plates and the two groups of fixed steel plates.

[0018] Furthermore, the telescopic component further includes:

[0019] An installation cover plate, the installation cover plate is fixedly arranged between the two groups of the spliced ​​cover plates, and the installation cover plate can provide space for movement and buffering for the two groups of the spliced ​​cover plates;

[0020] The inner sides of the two groups of spliced ​​cover plates are spliced ​​with the two sides of the installation cover plate in an arc shape, and the side edges of the two groups of spliced ​​cover plates match the side edges of the installation cover plate.

[0021] Furthermore, the movable parts include:

[0022] Rotating tubes, two groups of rotating tubes are fixedly arranged on the outside of the two groups of spliced ​​cover plates in a mirror-image manner, and the two groups of rotating tubes can provide movable support for the two groups of spliced ​​cover plates;

[0023] Rotation grooves, the two groups of rotation grooves are mirror-imaged and opened on the inner sides of the two groups of fixed steel plates.

[0024] Furthermore, the sealing component includes:

[0025] Support plates, wherein two sets of support plates are fixedly disposed in mirror images inside the upper end of the slot of the bridge structure body;

[0026] Elastic sealant, the elastic sealant is fixedly arranged inside the two groups of support plates, and the elastic sealant is used to protect the upper ends of the two groups of spliced ​​cover plates from stains and rainwater.

[0027] Furthermore, the colloid component includes:

[0028] Splicing holes, wherein a plurality of the splicing holes are mirror-imaged and opened between the two groups of the fixing steel plates and the two groups of the splicing cover plates;

[0029] Colloid blocks, a plurality of the colloid blocks being fixedly disposed inside the plurality of the splicing holes;

[0030] The plurality of colloid blocks are used to provide elastic buffering for the two groups of fixed steel plates and the two groups of spliced ​​cover plates.

[0031] Furthermore, the waterproof component includes:

[0032] A waterstop, which is fixedly arranged inside the two sets of support plates and the elastic sealant, and is used to prevent rainwater from penetrating into the main body of the bridge structure;

[0033] A reserved groove is fixedly arranged at the lower end of the water stop.

[0034] Furthermore, the supporting energy dissipation component includes:

[0035] U-shaped supporting steel bars, wherein a plurality of the U-shaped supporting steel bars are transversely fixedly disposed inside the two groups of supporting plates and the elastic sealant;

[0036] Arc-shaped connecting segments, wherein two groups of arc-shaped connecting segments are fixedly arranged in a mirror-image manner on the inner sides of the two groups of support plates and inside the elastic sealant.

[0037] Furthermore, the supporting energy dissipation component further includes:

[0038] A central base, the central base being fixedly disposed between the two groups of bridge structure bodies;

[0039] Short anchoring steel bars, a plurality of which pass through the central base and are fixedly arranged inside the main body of the bridge structure, and are used to provide support for fixing and connecting the central base;

[0040] Long anchoring steel bars are staggered horizontally and vertically and are fixedly arranged on the central base inside the two groups of bridge structure bodies. The long anchoring steel bars are used to provide support for the fixed connection of the two groups of bridge structure bodies.

[0041] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0042] 1. The waterproof bridge expansion joint structure of the present invention is fixedly connected to the main body of the bridge structure through a plurality of the short anchor steel bars and a plurality of the long anchor steel bars when the workers are operating it, so that the connection between the main bodies of the bridge structure is more stable, and at the same time, the pressure generated at the upper end can be buffered longitudinally and transversely.

[0043] 2. The waterproof bridge expansion joint structure of the present invention can fix the two groups of fixed steel plates through the two groups of the card slots. At the same time, a number of splicing holes are opened between the two groups of fixed steel plates and the main body of the bridge structure. Glue is injected inside, and after drying and solidification, a number of colloid blocks are formed. The several colloid blocks are elastic and can buffer the movement between the two groups of fixed steel plates and the main body of the bridge structure. The two groups of splicing cover plates are rotated by the mutual rotation between the two groups of rotating tubes and the two groups of rotating grooves, which is convenient for the staff to perform internal maintenance and parts replacement in the later stage.

[0044] 3. The waterproof bridge expansion joint structure of the present invention, the installation cover plate is matched with the two groups of spliced ​​cover plates, and the installation cover plate allows a buffer space to be provided between the two groups of spliced ​​cover plates, which can effectively offset the deformation and pressure generated. At the same time, the two groups of spliced ​​cover plates and the lower ends of the installation cover plates are fixed with elastic sealant and waterstop strips, which can prevent rainwater and stains from the upper end from flowing in. The several U-shaped support steel bars and the several arc-shaped connecting sections at the lower end can provide support for the upper end, which can effectively offset and buffer the pressure generated from top to bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 An axonometric view of the present invention is shown;

[0046] Figure 2 Shows an axonometric view of the present invention;

[0047] Figure 3 An axonometric cross-sectional view of the present invention is shown;

[0048] Figure 4 Shown is a front view of the present invention;

[0049] Figure 5 shows a top view of the present invention;

[0050] Figure 6 Shown is a bottom view of the present invention;

[0051] Figure 7 Shows the structural diagram of the waterproof component of the present invention;

[0052] Figure 8The present invention is a flowchart of a construction method of a waterproof bridge expansion joint structure according to an embodiment of the present invention.

[0053] In the picture:

[0054] 1. Bridge structure body; 3. Telescopic components; 31. Splicing cover plate; 32. Card slot;

[0055] 33. Fixing steel plate; 34. Installing cover plate; 5. Sealing component; 51. Support plate;

[0056] 52. Elastic sealant; 6. Colloid component; 61. Joint hole; 62. Colloid block;

[0057] 7. Supporting energy dissipation components; 71. U-shaped supporting steel bars; 72. Arc-shaped connecting section; 73. Center base;

[0058] 74. Short anchor bars; 75. Long anchor bars; 8. Waterproof components; 81. Waterstop;

[0059] 82. Reserved slot; 9. Movable part; 91. Rotating tube; 92. Rotating slot. DETAILED DESCRIPTION

[0060] The present invention will now be described in further detail with reference to the accompanying drawings. Figure 1 , Figure 1 Shows an axonometric view of the present invention; see Figure 2 , Figure 2 Shows an axonometric view of the present invention; see Figure 3 , Figure 3 Shows an axial cross-sectional view of the present invention; see Figure 4 , Figure 4 Shows a front view of the present invention; see Figure 5 , Figure 5 Shows a top view of the present invention; see Figure 6 , Figure 6 Shows a bottom view of the present invention; see Figure 7 , Figure 7 Shows the structural diagram of the waterproof component of the present invention; Figure 1-7 As shown, a waterproof bridge expansion joint structure includes

[0061] The telescopic component 3 is movably arranged in the slot of the bridge structure main body 1 and is used to reduce the kinetic energy of the bridge structure main body 1;

[0062] Sealing component 5, the sealing component 5 is fixedly arranged at the bottom end of the two sets of telescopic components 3, and the sealing component 5 is used to protect the upper end of the bridge structure body 1 from stains and rainwater;

[0063] The colloid component 6 is fixedly disposed between the slot of the bridge structure main body 1 and the connection between the telescopic component 3. The colloid component 6 is used to provide a buffer and seal for the slot of the bridge structure main body 1 and the telescopic component 3.

[0064] The supporting energy dissipation component 7 is fixedly arranged between the bridge structure main body 1 and the telescopic component 3;

[0065] A waterproof component 8 is fixedly arranged at the lower end of the sealing component 5 and is used to prevent rainwater from entering the interior of the bridge structure body 1;

[0066] The vibrating bridge structure main body 1, the telescopic component 3, the sealing component 5, the colloid component 6, and the supporting energy dissipation component 7 can dissipate energy and reduce shock. Specifically, the waterproof bridge expansion joint structure of the present invention is fixedly connected to the slots of the bridge structure main body 1 through a number of short anchoring steel bars 74 and a number of long anchoring steel bars 75 when the staff is operating, so that the connection between the slots of the bridge structure main body 1 is more stable, and at the same time, the pressure generated at the upper end can be buffered longitudinally and transversely; the waterproof bridge expansion joint structure of the present invention can be fixedly provided with two groups of fixed steel plates 33 through two groups of card slots 32, and at the same time, a number of splicing holes 61 are opened between the two groups of fixed steel plates 33 and the bridge structure main body 1, and glue is injected inside to form a number of colloid blocks 62 after drying and condensing. The several colloid blocks 62 have elasticity and can buffer the two The movement between the fixed steel plate 33 and the main body 1 of the bridge structure generates a buffer, and the two groups of spliced ​​cover plates 31 are rotated by the mutual rotation between the two groups of rotating tubes 91 and the two groups of rotating grooves 92, which is convenient for the staff to perform internal maintenance and parts replacement in the later stage; the waterproof bridge expansion joint structure of the present invention, the installation cover plate 34 is matched with the two groups of spliced ​​cover plates 31, and the installation cover plate 34 is used to provide a buffer space between the two groups of spliced ​​cover plates 31, which can effectively offset the deformation and pressure generated. At the same time, the two groups of spliced ​​cover plates 31 and the installation cover plate 34 are fixed with elastic sealant 52 and water stop strips 81 at the lower ends, which can prevent rainwater and stains from the upper end from flowing in. The several U-shaped support steel bars 71 and several arc-shaped connecting sections 72 at the lower end can provide support to the upper end, which can effectively offset and buffer the pressure generated from top to bottom.

[0067] Optionally, the telescopic component 3 includes:

[0068] Splicing cover plates 31, two sets of splicing cover plates 31 are mirror-imaged and movably arranged at the upper end of the slot of the bridge structure main body 1, and the two sets of splicing cover plates 31 are used to provide buffering and expansion space for the slot of the bridge structure main body 1;

[0069] The two sets of card slots 32 are mirror-imaged and are provided on both sides of the upper end of the slot of the bridge structure body 1. The two sets of card slots 32 are used to provide space for the two sets of spliced ​​cover plates 31 to move;

[0070] Fixed steel plates 33, two sets of fixed steel plates 33 are fixedly arranged in the two sets of slots 32 in a mirrored manner, and the two sets of fixed steel plates 33 are used to provide fixed and movable space for the two sets of splicing cover plates 31;

[0071] The movable parts 9, two groups of movable parts 9 are mirror-imaged and movably arranged between the two groups of splicing cover plates 31 and the two groups of fixed steel plates 33. The two groups of splicing cover plates 31 are movably arranged at the front end of the two groups of fixed steel plates 33 through the movable parts 9. The two groups of card slots 32 can provide space for fixing and installing the two groups of fixed steel plates 33. The two groups of splicing cover plates 31 match to form a complete splicing seam. The two groups of fixed steel plates 33 are subjected to the extrusion pressure from the upper end and can be horizontally displaced in the two groups of card slots 32. The function in the process is reduced by horizontal buffering.

[0072] Optionally, the telescopic component 3 further includes:

[0073] The installation cover plate 34 is fixedly arranged between the two sets of splicing cover plates 31, and the installation cover plate 34 can provide space for movement and buffering for the two sets of splicing cover plates 31;

[0074] The inner sides of the two sets of spliced ​​cover plates 31 and the two sides of the installation cover plates 34 are spliced ​​in an arc shape, so that the vibration force can be diffused through the contact angle between them to reduce the force. The side edges of the two sets of spliced ​​cover plates 31 match the side edges of the installation cover plates 34. The inner sides of the two sets of spliced ​​cover plates 31 and the two sides of the installation cover plates 34 are spliced ​​in an arc shape. The mutual connection between the two sets of spliced ​​cover plates 31 and the installation cover plates 34 can buffer the extrusion transmitted from the upper end while preventing rainwater and stains from flowing in.

[0075] Optionally, the movable component 9 includes:

[0076] Rotating tubes 91, two sets of rotating tubes 91 are fixedly arranged on the outside of the two sets of splicing cover plates 31 in a mirror-image manner, and the two sets of rotating tubes 91 can provide movable support for the two sets of splicing cover plates 31;

[0077] The rotating grooves 92, the two sets of rotating grooves 92 are mirror-imaged and opened on the inner sides of the two sets of fixed steel plates 33. The two sets of rotating grooves 92 can provide space for the two sets of rotating tubes 91 to move and fix. The two sets of rotating tubes 91 are matched with the two sets of rotating grooves 92. The rotation of the two sets of rotating tubes 91 can drive the two sets of splicing cover plates 31 to rotate and open, making it convenient for staff to carry out maintenance.

[0078] Optionally, the sealing component 5 includes:

[0079] Support plates 51, two sets of support plates 51 are fixedly arranged in a mirror image inside the upper end of the slot of the bridge structure body 1;

[0080] Elastic sealant 52, the elastic sealant 52 is fixedly arranged inside the two groups of support plates 51, and the elastic sealant 52 is used to protect the stains and rainwater on the upper ends of the two groups of spliced ​​cover plates 31. The elastic sealant 52 is filled in the internal space of the two groups of support plates 51 from a molten state to wrap the waterproof component 8 and the supporting energy dissipation component 7. When the vibration force is generated, the elastic sealant 52 can multiply diffuse the mutual contact force between the two adjacent parts, and the force includes longitudinal and oblique directions, thereby protecting the parts from damage and avoiding excessive vibration amplitude of the parts.

[0081] Optionally, the colloid component 6 includes:

[0082] Splicing holes 61, a plurality of splicing holes 61 are mirror-imaged and opened between the two sets of fixed steel plates 33 and the two sets of splicing cover plates 31;

[0083] Colloid blocks 62, a plurality of colloid blocks 62 are fixedly disposed inside the plurality of splicing holes 61, and the plurality of colloid blocks 62 are cylindrical, with outer walls thereof fitting against the walls of the splicing holes 61;

[0084] Several colloid blocks 62 are used to provide elastic buffering for the two groups of fixed steel plates 33 and the two groups of spliced ​​cover plates 31. The vibration force between them is dissipated in a circular manner during the transmission process. The distance setting of several colloid blocks 62 allows the vibration force to be dissipated in sections to avoid overload of the colloid blocks 62. Several colloid blocks 62 are elastic and can buffer the bridge structure body 1 and the two groups of fixed steel plates 33, providing telescopic tension.

[0085] Optionally, the waterproof component 8 includes:

[0086] The waterstop 81 is fixedly arranged inside the two sets of support plates 51 and the elastic sealant 52. The waterstop 81 is used to prevent rainwater from penetrating into the main body of the bridge structure 1. The waterstop 81 is wavy;

[0087] The reserved groove 82 is fixedly arranged at the lower end of the waterstop 81. The reserved groove 82 can provide a buffer space for the elastic sealant 52 and the waterstop 81 when they are squeezed. The waterstop 81 can condense with the elastic sealant 52 at multiple angles to increase the condensation firmness therebetween, so that it cannot be separated during the force transmission process. The waterstop 81 further increases the sealing effect of the elastic sealant 52, which can effectively prevent water from penetrating into the interior of the bridge structure and play a role in protecting the bridge. The elasticity of the reserved groove 82 and the waterstop 81 is used to resist the pressure of water, thereby achieving a waterproof effect. When the road is flooded, the water pressure squeezes the waterstop 81, and the waterstop 81 elastically deforms toward the reserved groove 82 and is limited in deformation by the reserved groove 82, so as to avoid the reserved groove 82 being directly subjected to the impact of water and shortening its life. The inner surface of the reserved groove 82 is semi-cylindrical, which can disperse the pressure on the waterstop 81 at 180 degrees.

[0088] Optionally, the supporting energy dissipation component 7 includes:

[0089] U-shaped support steel bars 71, a plurality of U-shaped support steel bars 71 are transversely fixedly disposed inside the two sets of support plates 51 and the elastic sealant 52;

[0090] Arc-shaped connecting sections 72, two groups of arc-shaped connecting sections 72 are fixed in a mirror-image manner on the inner side of the two groups of support plates 51 and inside the elastic sealant 52, and the two groups of arc-shaped connecting sections 72 are used to provide fixation and support for the two groups of support plates 51 and the installation cover plate 34. Several U-shaped support steel bars 71 and several arc-shaped connecting sections 72 can provide fixation and support for the two groups of spliced ​​cover plates 31 and the installation cover plate 34, so that the pressure generated when the vehicle passes from the upper end can be buffered by the elastic sealant 52 and several U-shaped support steel bars 71 and the arc-shaped connecting sections 72.

[0091] Optionally, the supporting energy dissipation component 7 further includes:

[0092] The central base 73 is fixedly disposed between the two groups of bridge structure bodies 1. The central base 73 can provide a space for connection and fixing of the slots of the bridge structure bodies 1.

[0093] Short anchoring steel bars 74, a plurality of short anchoring steel bars 74 pass through the central base 73 and are fixedly arranged inside the bridge structure body 1, and the plurality of short anchoring steel bars 74 are used to provide fixed and connected support for the central base 73;

[0094] The long anchoring steel bars 75 are staggered horizontally and vertically through the central base 73 and are fixedly arranged inside the two groups of bridge structure bodies 1. The long anchoring steel bars 75 are used to provide fixed connection support for the bridge structure body 1. A number of long anchoring steel bars 75 and a number of short anchoring steel bars 74 pass through the central base 73 and are fixedly arranged inside the slots of the bridge structure body 1 to provide fixed support for the bridge structure body 1, so that the connection between the slots of the bridge structure body 1 is more stable and firm.

[0095] like Figure 8As shown, in another embodiment of the present invention, a construction method of a waterproof bridge expansion joint structure is provided, comprising the following steps: the waterproof bridge expansion joint structure, in the first step of working, is fixedly connected to the bridge structure main body 1 through a plurality of short anchoring steel bars 74 and a plurality of long anchoring steel bars 75. This connection method makes the connection between the bridge structure main bodies 1 more stable, and at the same time can provide longitudinal and transverse buffering for the pressure generated at the upper end; in the second step, two groups of fixed steel plates 33 are fixedly set through two groups of card slots 32, and a plurality of splicing holes 61 are opened between the two groups of fixed steel plates 33 and the bridge structure main body 1, and glue is injected into the splicing holes 61, and the glue dries and solidifies Then, a number of colloid blocks 62 are formed, and the several colloid blocks 62 are elastic. The two groups of spliced ​​cover plates 31 are rotated by the mutual rotation between the two groups of rotating tubes 91 and the two groups of rotating grooves 92. In the third step, the installation cover plate 34 is matched with the two groups of spliced ​​cover plates 31. By installing the cover plate 34, there is a buffer space between the two groups of spliced ​​cover plates 31. At the same time, the two groups of spliced ​​cover plates 31 and the lower ends of the installation cover plates 34 are fixed with elastic sealant 52 and water stop strips 81, which can prevent rainwater and stains from the upper end from flowing in. In the fourth step, the several U-shaped support steel bars 71 and the several arc-shaped connecting sections 72 and the reserved grooves 82 at the lower end can provide support for the upper end, which can effectively offset and buffer the pressure generated from top to bottom.

[0096] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A waterproof bridge expansion joint structure, characterized by: include A telescopic component (3), the telescopic component (3) being movably arranged inside a slot of the bridge structure main body (1), and the telescopic component (3) being used to reduce kinetic energy of the bridge structure main body (1); A sealing component (5), the sealing component (5) being fixedly arranged at the bottom ends of the two groups of telescopic components (3), and the sealing component (5) being used to protect sewage at the upper end of the bridge structure body (1) and to vertically absorb shock; A colloid component (6), the colloid component (6) being fixedly arranged between the opening groove of the bridge structure main body (1) and the connection point of the telescopic component (3), the colloid component (6) being used to provide buffering and sealing for the opening groove of the bridge structure main body (1) and the telescopic component (3); A supporting energy dissipation component (7), wherein the supporting energy dissipation component (7) is fixedly arranged in the middle of the bridge structure main body (1) and the telescopic component (3); A waterproof component (8), the waterproof component (8) being fixedly arranged at the lower end of the sealing component (5), and the waterproof component (8) being used to prevent rainwater from entering the interior of the bridge structure body (1); The bridge structure main body (1) is vibrated, and the telescopic component (3), the sealing component (5), the colloid component (6), and the supporting energy dissipation component (7) are capable of multi-directional energy dissipation and vibration reduction; The telescopic component (3) comprises: Splicing cover plates (31), wherein two groups of the splicing cover plates (31) are mirror-image-movably arranged at the upper end of the slot of the bridge structure main body (1), and the two groups of the splicing cover plates (31) are used to provide buffering and expansion space for the slot of the bridge structure main body (1); Slots (32), two groups of the slots (32) are mirror-imaged and opened on both sides of the upper end of the slot of the bridge structure main body (1), and the two groups of the slots (32) are used to provide space for the two groups of spliced ​​cover plates (31) to move; Fixed steel plates (33), two groups of fixed steel plates (33) are fixedly arranged in a mirror-image manner inside the two groups of slots (32), and the two groups of fixed steel plates (33) are used to provide fixed and movable space for the two groups of spliced ​​cover plates (31); Movable components (9), wherein two groups of movable components (9) are arranged in a mirror-image manner between the two groups of splicing cover plates (31) and the two groups of fixed steel plates (33); The telescopic component (3) further includes: An installation cover plate (34), wherein the installation cover plate (34) is fixedly arranged between the two groups of the spliced ​​cover plates (31), and the installation cover plate (34) can provide a space for movement and buffering for the two groups of the spliced ​​cover plates (31); The inner sides of the two groups of spliced ​​cover plates (31) are spliced ​​with the two sides of the installation cover plate (34) in an arc shape, and the side edges of the two groups of spliced ​​cover plates (31) match the side edges of the installation cover plate (34); The movable part (9) comprises: Rotating tubes (91), two groups of rotating tubes (91) are fixedly arranged on the outside of the two groups of splicing cover plates (31) in a mirror-image manner, and the two groups of rotating tubes (91) can provide movable support for the two groups of splicing cover plates (31); Rotation grooves (92), wherein the two groups of rotation grooves (92) are mirror-imaged and opened on the inner sides of the two groups of fixed steel plates (33).

2. A waterproof bridge expansion joint structure according to claim 1, characterized in that: The sealing component (5) comprises: Support plates (51), wherein two groups of support plates (51) are fixedly arranged in a mirror-image manner inside the upper end of the slot of the bridge structure body (1); An elastic sealant (52), wherein the elastic sealant (52) is fixedly arranged inside the two groups of support plates (51), and the elastic sealant (52) is used to protect the upper ends of the two groups of spliced ​​cover plates (31) from dirt and rainwater.

3. A waterproof bridge expansion joint structure according to claim 2, characterized in that: The colloid component (6) comprises: Splicing holes (61), a plurality of the splicing holes (61) are mirror-imaged and opened between the two groups of the fixing steel plates (33) and the two groups of the splicing cover plates (31); Colloid blocks (62), wherein a plurality of the colloid blocks (62) are fixedly arranged inside a plurality of the splicing holes (61); The plurality of colloid blocks (62) are used to provide elastic buffering for the two groups of fixed steel plates (33) and the two groups of spliced ​​cover plates (31).

4. A waterproof bridge expansion joint structure according to claim 3, characterized in that: The waterproof component (8) comprises: A waterstop (81), the waterstop (81) being fixedly arranged inside the two groups of support plates (51) and the elastic sealant (52), and the waterstop (81) being used to prevent rainwater from penetrating into the interior of the bridge structure body (1); A reserved groove (82) is fixedly arranged at the lower end of the water stop (81).

5. A waterproof bridge expansion joint structure according to claim 4, characterized in that: The supporting energy dissipation component (7) comprises: U-shaped support steel bars (71), wherein a plurality of the U-shaped support steel bars (71) are transversely fixedly disposed inside the two groups of support plates (51) and the elastic sealant (52); Arc-shaped connecting segments (72), wherein two groups of the arc-shaped connecting segments (72) are fixedly arranged in a mirror-image manner on the inner sides of the two groups of support plates (51) and inside the elastic sealant (52).

6. A waterproof bridge expansion joint structure according to claim 5, characterized in that: The supporting energy dissipation component (7) further includes: A central base (73), wherein the central base (73) is fixedly arranged in the middle of the two groups of bridge structure bodies (1); Short anchoring steel bars (74), wherein a plurality of the short anchoring steel bars (74) pass through the central base (73) and are fixedly arranged inside the bridge structure body (1), and the plurality of the short anchoring steel bars (74) are used to provide fixed and connected support for the central base (73); Long anchoring steel bars (75), the long anchoring steel bars (75) are staggered and interlaced in the central base (73) in a transverse and vertical direction and are fixedly arranged inside the two groups of bridge structure bodies (1), and the long anchoring steel bars (75) are used to provide support for the fixed connection of the two groups of bridge structure bodies (1).

7. The waterproof bridge expansion joint structure according to any one of claims 1 to 6, wherein the construction method thereof is: S100: fixing the plurality of short anchor steel bars (74) and the plurality of long anchor steel bars (75) to the slots of the bridge structure main body (1); S200: Two sets of fixed steel plates (33) are spliced ​​with the bridge structure main body (1) through two sets of slots (32) to form a plurality of splicing holes (61), glue is injected into the splicing holes (61), and after the glue dries and solidifies, a plurality of glue blocks (62) are formed. The two sets of splicing cover plates (31) are arranged at the front ends of the two sets of fixed steel plates (33) through the mutual rotation between the two sets of rotating tubes (91) and the two sets of rotating slots (92); S300: The installation cover plate (34) is matched with the two sets of splicing cover plates (31), and the installation cover plate (34) is movably arranged in the middle of the two sets of splicing cover plates (31), while the elastic sealant (52) and the water stop (81) are fixedly arranged at the lower ends of the two sets of splicing cover plates (31) and the installation cover plate (34); S400: The plurality of U-shaped supporting steel bars (71) and the plurality of arc-shaped connecting sections (72) and the reserved grooves (82) at the lower end can provide support for the upper end.

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