Pre-tightening bridge telescopic structure and bridge assembly thereof
By installing plates and concrete on both sides of the bridge, using telescopic components and intersecting teeth to abut, combining buffer components and shock absorbing parts, the problem of jumping off the bridge expansion joint structure under wheel impact is solved, reducing vibration and gaps are improved, and service life.
Patent Information
- Application Number
- CN202420097455.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-15
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-01-15
AI Technical Summary
The existing bridge expansion joint structure is prone to dewelding and deformation under the impact of wheels, resulting in serious phenomenon of jumping off the vehicle. The height difference between the concrete pavement and expansion joint structure leads to serious impact on the expansion joint of wheels, which poses a hidden danger of jumping off the vehicle.
Design a pre-tightening bridge telescopic structure, by setting plates and concrete on both sides of the bridge, the gap is reduced by using the telescopic components and intersecting teeth to abut, and the stress generated by bridge deformation is absorbed through the buffer components and shock absorbers to reduce vibration and Improve service life.
It effectively reduces the vibration during driving, reduces the gaps in the telescopic part, improves the service life of the bridge structure, and prevents foreign objects from entering the telescopic joint, reducing vibration of the plate body.
Smart Images
Figure CN222362368U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of bridge facilities, and in particular to a pre-tensioned bridge telescopic structure and a bridge assembly thereof. Background Art
[0002] The pre-tensioned bridge expansion structure refers to a structure used in bridge design to meet the expansion and contraction deformation caused by temperature changes, wind loads, vehicle loads and other factors during the use of the bridge. It is mainly composed of load-bearing components, expansion joints, pre-tensioning devices, supporting facilities, etc.
[0003] There are two main types of existing bridge expansion joint structures. One is to weld angle steel or channel steel to the embedded steel bars at the end of the bridge deck, and then pour concrete. Under the impact of wheels, the steel bar welding points of this type of expansion joint structure are prone to desoldering and deformation, resulting in serious vehicle jumping. The other is to use bolts to fix sliding or dog-tooth expansion plates to cope with the thermal expansion and contraction of the bridge. Because there is a large height difference between the concrete pavement and the expansion joint structure, the wheels have a serious impact on the expansion joint structure, posing a risk of vehicle jumping. Utility Model Content
[0004] The embodiment of the present application provides a pre-tensioned bridge telescopic structure and a bridge assembly thereof to solve the problem in the related art that the wheels have a serious impact on the expansion joint structure and there is a risk of the vehicle jumping.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: In the first aspect, a pre-tensioned bridge telescopic structure is provided, which includes: two plate bodies, a plurality of telescopic components and concrete, the two plate bodies are used to be relatively erected on both sides of the expansion joint along the longitudinal bridge direction, the opposite sides of the two plate bodies are spaced apart with intersecting teeth, the opposite sides of the two plate bodies are spaced apart with connecting cavities, the intersecting teeth on one of the plate bodies correspond to the connecting cavities on the other of the plate bodies, and a telescopic portion is formed between the corresponding intersecting teeth and the connecting cavities; one end of the telescopic component on one of the plate bodies is slidably connected to the connecting cavity along the longitudinal bridge direction, and the other end extends to the telescopic portion and abuts against the intersecting teeth on the other of the plate bodies; the concrete is used to be laid on the first beam body and the second beam body, the concrete is located on one side of the plate body, and the top end of the concrete is on the same horizontal plane as the top end of the plate body.
[0006] In some embodiments, one end of one of the plates is used to connect to one of the first beam and the second beam, and the other end is used to overlap the other of the first beam and the second beam, and the intersection teeth on the two plates are both located on one side of the expansion joint.
[0007] In some embodiments, the telescopic assembly includes: a push spring and an extension block, wherein the push spring is fixedly connected to the connecting cavity along the longitudinal bridge direction; one end of the extension block is placed in the connecting cavity and connected to the push spring, and the other end is placed outside the connecting cavity and abuts against the interlocking tooth.
[0008] In some embodiments, the pre-tensioned bridge telescopic structure also includes a buffer component, which is connected to the plate body, one end of the buffer component is a first beam connection end, and the other end is a second beam connection end, and the distance between the first beam connection end and the second beam connection end is adjustable.
[0009] In some embodiments, the buffer assembly includes: a mounting plate, a mounting block, a damping filler and an abutment member, one end of the mounting plate is a second beam body connection end; one end of the mounting block is a first beam body connection end, the mounting block and the mounting plate are used to be relatively erected on both sides of the expansion joint along the longitudinal bridge direction, and a buffer cavity is opened inside the mounting block; the damping filler is filled in the buffer cavity on the side away from the mounting plate; the abutment member is connected between the damping filler and the mounting plate, and the abutment member is slidably connected to the inner wall of the buffer cavity.
[0010] In some embodiments, the abutment member includes: a connecting rod, a abutment plate and a piston, wherein one end of the connecting rod is fixedly connected to the mounting plate, and the other end extends into the buffer chamber; the abutment plate is fixedly connected to the other end of the connecting rod; the piston is connected between the damping filler and the abutment plate, and is slidably connected to the inner wall of the buffer chamber.
[0011] In some embodiments, the buffer assembly further includes a shock absorbing member, which is vertically disposed in the buffer cavity, and one end of the shock absorbing member abuts against the abutting member, and the other end is connected to the inner wall of the buffer cavity, and the distance between the two ends of the shock absorbing member is adjustable.
[0012] In some embodiments, the shock absorbing component includes: a telescopic rod and a shock absorbing spring, the telescopic rod is vertically arranged inside the buffer cavity, and one end of the telescopic rod is connected to the inner wall of the buffer cavity, and the other end is fixed with a stop block, and the stop block abuts against the surface of the connecting rod; the shock absorbing spring is sleeved on the outer surface of the telescopic rod and abuts against the stop block.
[0013] In a second aspect, a bridge assembly is provided, comprising: a first beam, a second beam and the pre-tensioned bridge telescopic structure as described above, wherein an expansion joint is formed between the first beam and the second beam; and the pre-tensioned bridge telescopic structure is connected to the first beam and the second beam.
[0014] In some embodiments, one end of the plate body located on the first beam body is overlapped on the second beam body, the intersecting teeth of the plate body located on the first beam body are located on the second beam body, a drainage hole is arranged inside the second beam body, a collecting hole is arranged on the top of the second beam body, the collecting hole is connected with the drainage hole, and the water inlet of the collecting hole is arranged at the position of the telescopic part.
[0015] The beneficial effects of the technical solution provided by this application include:
[0016] The embodiment of the present application provides a pre-tensioned bridge telescopic structure and a bridge assembly thereof, wherein a plate body is arranged on a first beam body and a second beam body and concrete is laid, thereby reducing the height difference between the road surface and the plate body and reducing the vibration of the vehicle during driving; by arranging a telescopic component to abut against the intersecting teeth to reduce the gap of the telescopic part, the stress generated by the deformation of the first beam body and the second beam body along the longitudinal direction of the bridge can be absorbed, thereby improving the service life of the structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0018] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present application;
[0019] Figure 2 A schematic diagram of the overall structure provided for an embodiment of the present application;
[0020] Figure 3 A schematic diagram of a beam structure provided in an embodiment of the present application;
[0021] Figure 4 A schematic diagram of a pre-tensioned bridge telescopic structure provided in an embodiment of the present application;
[0022] Figure 5 A schematic diagram of the structure of a buffer assembly provided in an embodiment of the present application;
[0023] Figure 6 A schematic diagram of the extension block structure provided in an embodiment of the present application.
[0024] In the figure: 1. first beam body; 2. second beam body; 3. expansion joint; 4. buffer assembly; 41. mounting block; 42. buffer chamber; 43. piston; 44. damping filler; 45. telescopic rod; 46. shock absorbing spring; 47. stop block; 48. stop plate; 49. connecting rod; 410. mounting plate; 411. bolt one; 5. plate body; 51. bolt two; 52. interlocking teeth; 53. connecting chamber; 54. pushing spring; 55. extension block; 6. concrete; 7. drainage hole; 71. collecting hole. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0026] See also Figures 1 to 6 The embodiment of the present application provides a pre-tensioned bridge telescopic structure and a bridge assembly thereof, which can solve the problem in the related art that the wheels have a serious impact on the expansion joint structure and there is a risk of vehicle jumping.
[0027] On the first aspect, the embodiment of the present application provides a pre-tensioned bridge telescopic structure, which includes: two plate bodies 5, multiple telescopic components and concrete 6, the two plate bodies 5 are used to be relatively erected on both sides of the expansion joint 3 along the longitudinal bridge direction, and the opposite sides of the two plate bodies 5 are spaced apart with intersecting teeth 52, and the opposite sides of the two plate bodies 5 are spaced apart with connecting cavities 53, wherein the intersecting teeth 52 on one of the plate bodies 5 correspond to the connecting cavities 53 on the other of the plate bodies 5, and a telescopic portion is formed between the corresponding intersecting teeth 52 and the connecting cavities 53; one end of the telescopic component on one of the plate bodies 5 is slidably connected to the connecting cavity 53 along the longitudinal bridge direction, and the other end extends to the telescopic portion and abuts against the intersecting teeth 52 on the other of the plate bodies 5; the concrete 6 is used to be laid on the first beam body 1 and the second beam body 2, the concrete 6 is located on one side of the plate body 5, and the top of the concrete 6 is on the same horizontal plane as the top of the plate body 5.
[0028] The present application arranges a plate body 5 on the first beam body 1 and the second beam body 2 and lays concrete 6 to reduce the height difference between the road surface and the plate body 5 and reduce the vibration when the vehicle is driving; by arranging a telescopic component to abut against the intersecting teeth 52 to reduce the gap of the telescopic part, the stress generated by the deformation of the first beam body 1 and the second beam body 2 along the longitudinal bridge direction can also be absorbed, thereby improving the service life of the structure.
[0029] An expansion joint 3 is formed between the first beam 1 and the second beam 2, and two plates 5 are respectively fixed at the top of the first beam 1 and the second beam 2, and are respectively located on both sides of the expansion joint 3; the tops of the first beam 1 and the second beam 2 are paved with concrete 6 that is level with the tops of the plates 5, so as to reduce the height difference between the road surface and the plates 5, and reduce the vibration when the vehicle is driving, wherein the concrete 6 can use asphalt concrete 6. A plurality of bolts 51 are evenly arranged on the plates 5, and the two plates 5 are respectively installed at the tops of the first beam 1 and the second beam 2 by bolts 51, so as to facilitate the disassembly and maintenance of the plates 5 after long-term work; further, the plates 5 are made of high-strength anti-deformation steel plates, which can increase the service life of the plates 5.
[0030] Furthermore, one end of one of the plates 5 is used to connect to one of the first beam 1 and the second beam 2 , and the other end is used to overlap the other of the first beam 1 and the second beam 2 , and the intersection teeth 52 on the two plates 5 are both located on one side of the expansion joint 3 .
[0031] Specifically, one end of the plate 5 on the first beam 1 crosses the expansion joint 3 and overlaps the second beam 2; or one end of the plate 5 on the second beam 2 crosses the expansion joint 3 and overlaps the first beam 1. By overlapping the connection between one plate 5 and another plate 5 on the bridge, not only can the plate 5 be used to block the expansion joint 3 to prevent foreign matter from entering the expansion joint 3, but also the support effect of the bridge on the plate 5 can be improved, the vibration of the plate 5 can be reduced, and the service life of the plate 5 can be increased.
[0032] Each plate body 5 is staggeredly provided with intersecting teeth 52 and connecting cavities 53 on one side close to the expansion joint 3. The intersecting teeth 52 on one plate body 5 correspond to the connecting cavities 53 on the other plate body 5. The telescopic assembly is installed in the connecting cavity 53 so that the telescopic assembly on one plate body 5 abuts against the intersecting teeth 52 on the other plate body 5, thereby reducing the gap of the telescopic part, improving the flatness of the telescopic part, and reducing the vibration of the vehicle when driving; when the first beam body 1 and the second beam body 2 vibrate, the telescopic assembly slides in the connecting cavity 53 to absorb the stress generated by the deformation of the first beam body 1 and the second beam body 2 along the longitudinal bridge direction.
[0033] Among them, the telescopic component includes: a pushing spring 54 and an extension block 55, the pushing spring 54 is fixedly connected to the connecting cavity 53 along the longitudinal bridge direction; one end of the extension block 55 is placed in the connecting cavity 53 and connected to the pushing spring 54, and the other end is placed outside the connecting cavity 53 and abuts against the interlocking tooth 52.
[0034] A connecting cavity 53 is provided on one side of the plate body 5, and a pushing spring 54 is installed inside the connecting cavity 53. An extension block 55 is arranged inside the connecting cavity 53, and one end of the extension block 55 is connected to the pushing spring 54. The pushing spring 54 drives the extension block 55 to always abut against the intersection tooth 52 through its own elastic force. When the first beam body 1 and the second beam body 2 vibrate or deform, the intersection tooth 52 will be driven to move, pressing the extension block 55. The extension block 55 will shrink toward the inside of the connecting cavity 53 to compress the pushing spring 54, so as to facilitate the initial absorption of the stress generated by the first beam body 1 and the second beam body 2.
[0035] On the basis of the above embodiments, in this embodiment, the pre-tensioned bridge telescopic structure also includes a buffer component 4, which is connected to the plate body 5, one end of the buffer component 4 is a first beam body connection end, and the other end is a second beam body connection end, and the distance between the first beam body connection end and the second beam body connection end is adjustable.
[0036] The buffer assembly 4 is arranged at the expansion joint 3, the first beam body connection end is connected to the first beam body 1, the second beam body connection end is connected to the second beam body 2, the adjustable distance between the first beam body connection end and the second beam body connection end means that the distance between the first beam body connection end and the second beam body connection end can change with the vibration of the first beam body 1 and the second beam body 2, and the top of the buffer assembly 4 is also fixed to one of the plate bodies 5. Specifically, the buffer assembly 4 includes: a mounting plate 410, a mounting block 41, a damping filler 44 and an abutment member, one end of the mounting plate 410 is the second beam body connection end; one end of the mounting block 41 is the first beam body connection end, the mounting block 41 and the mounting plate 410 are used to be relatively erected on both sides of the expansion joint 3 along the longitudinal bridge direction, and a buffer cavity 42 is opened inside the mounting block 41; the damping filler 44 is filled in the buffer cavity 42 on the side away from the mounting plate 410; the abutment member is connected between the damping filler 44 and the mounting plate 410, and the abutment member is slidably connected to the inner wall of the buffer cavity 42.
[0037] A bolt 411 is provided on the mounting plate 410, and the mounting plate 410 is fixedly mounted on the second beam body 2 by means of the bolt 411, and the mounting block 41 is mounted on the first beam body 1; in actual work, the mounting plate 410 can also be fixedly mounted on the first beam body 1 by means of the bolt 411, and the mounting block 41 is mounted on the second beam body 2.
[0038] When the first beam body 1 and the second beam body 2 vibrate and deform, the mounting block 41 and the mounting plate 410 will move relative to each other, and the mounting plate 410 will drive the abutment to move, and the abutment will press the damping filler 44, so as to absorb the stress generated by the vibration and deformation of the first beam body 1 and the second beam body 2. The abutment includes: a connecting rod 49, a butt plate 48 and a piston 43, one end of the connecting rod 49 is fixedly connected to the mounting plate 410, and the other end extends into the buffer cavity 42. In order to prevent the inner wall of the buffer cavity 42 and the surface of the connecting rod 49 from being worn, a gap is set between the surface of the connecting rod 49 and the inner wall of the buffer cavity 42; the butt plate 48 is fixedly connected to the other end of the connecting rod 49; the piston 43 is connected between the damping filler 44 and the butt plate 48, and is slidably connected to the inner wall of the buffer cavity 42. Therefore, when the first beam body 1 and the second beam body 2 vibrate and deform, the mounting plate 410 drives the connecting rod 49 to move, the connecting rod 49 drives the abutment plate 48 to move, and the abutment plate 48 presses the damping filler 44 by pushing the piston 43 .
[0039] The damping filler 44 is compressed by the abutment to absorb the stress generated by the deformation of the first beam body 1 and the second beam body 2 in the longitudinal direction. In order to absorb the stress generated when the first beam body 1 and the second beam body 2 are displaced up and down, the buffer assembly 4 also includes a shock absorbing member, which is vertically arranged in the buffer cavity 42, and one end of the shock absorbing member is in contact with the abutment, and the other end is connected to the inner wall of the buffer cavity 42, and the distance between the two ends of the shock absorbing member is adjustable.
[0040] Since the distance between the two ends of the shock absorber is adjustable, that is, the shock absorber can shrink or stretch, when the first beam body 1 and the second beam body 2 are displaced up and down, the shock absorber will be driven to shrink or stretch, so as to absorb the stress generated by the vibration and deformation of the first beam body 1 and the second beam body 2. The shock absorber includes: a telescopic rod 45 and a shock absorbing spring 46, wherein the telescopic rod 45 is vertically arranged inside the buffer cavity 42, and one end of the telescopic rod 45 is connected to the inner wall of the buffer cavity 42, and the other end is fixed with a stop block 47, and the stop block 47 is in contact with the surface of the connecting rod 49; the shock absorbing spring 46 is sleeved on the outer surface of the telescopic rod 45 and is in contact with the stop block 47.
[0041] One or more shock absorbing members can be arranged in the buffer cavity 42. When multiple shock absorbing members are arranged, the multiple shock absorbing members can be arranged on the same side of the connecting rod 49. Multiple shock absorbing members can also be arranged on the top or bottom of the connecting rod 49, so that the multiple shock absorbing members arranged relatively clamp the connecting rod 49. A sliding groove is provided on the stop block 47, so that the connecting rod 49 is embedded in the sliding groove and can slide in the sliding groove, which can prevent the connecting rod 49 from separating from the stop block 47 when the first beam body 1 and the second beam body 2 vibrate. One end of the telescopic rod 45 is fixed to the inner wall of the buffer cavity 42, and the other end of the telescopic rod 45 is fixedly installed with a stop block 47, and the stop block 47 abuts against the surface of the connecting rod 49. The outer surface of the telescopic rod 45 is sleeved with a shock absorbing spring 46, and one end of the shock absorbing spring 46 abuts against the stop block 47. When the first beam body 1 and the second beam body 2 are displaced up and down, the connecting rod 49 will be driven to vibrate up and down, and the up and down vibration of the connecting rod 49 is absorbed by the elastic force of the shock absorbing spring 46 and the telescopic movement of the telescopic rod 45.
[0042] On the basis of the above embodiment, one end of the plate body 5 located on the first beam body 1 is overlapped on the second beam body 2, the intersecting teeth 52 of the plate body 5 located on the first beam body 1 are located on the second beam body 2, a drainage hole 7 is arranged inside the second beam body 2, a collecting hole 71 is arranged on the top of the second beam body 2, the collecting hole 71 is connected with the drainage hole 7, and the water inlet of the collecting hole 71 is arranged at the position of the telescopic part.
[0043] When the plate body 5 is overlapped on the second beam body 2, a drainage hole 7 is arranged inside the second beam body 2, and a collecting hole 71 is arranged on the surface of the second beam body 2 to be connected with the drainage hole 7. The water inlet of the collecting hole 71 is arranged at the telescopic part. When rainwater falls into the intersection teeth 52 and the telescopic part, it can flow into the second beam body 2 from the collecting hole 71 and then be discharged from the drainage hole 7 to prevent water accumulation from affecting the operation of the bridge; or when the plate body 5 is overlapped on the first beam body 1, the drainage hole 7 is arranged inside the first beam body 1, and the collecting hole 71 is arranged on the surface of the first beam body 1 to be connected with the drainage hole 7.
[0044] In the second aspect, an embodiment of the present application provides a bridge assembly, which includes: a first beam body 1, a second beam body 2 and a pre-tensioned bridge telescopic structure provided by any of the above embodiments of the present application, an expansion joint 3 is formed between the first beam body 1 and the second beam body 2; the pre-tensioned bridge telescopic structure is connected to the first beam body 1 and the second beam body 2.
[0045] The present application arranges a plate body 5 on the first beam body 1 and the second beam body 2 and lays concrete 6 to reduce the height difference between the road surface and the plate body 5 and reduce the vibration when the vehicle is driving; by arranging a telescopic component to abut against the intersecting teeth 52 to reduce the gap of the telescopic part, the stress generated by the deformation of the first beam body 1 and the second beam body 2 along the longitudinal bridge direction can also be absorbed, thereby improving the service life of the structure.
[0046] Furthermore, one end of the plate body 5 located on the first beam body 1 is overlapped on the second beam body 2, and the intersecting teeth 52 of the plate body 5 located on the first beam body 1 are located on the second beam body 2. A drainage hole 7 is arranged inside the second beam body 2, and a collecting hole 71 is arranged on the top of the second beam body 2. The collecting hole 71 is connected with the drainage hole 7, and the water inlet of the collecting hole 71 is arranged at the position of the telescopic part.
[0047] When the plate body 5 is overlapped on the second beam body 2, a drainage hole 7 is arranged inside the second beam body 2, and a collecting hole 71 is arranged on the surface of the second beam body 2 to be connected with the drainage hole 7. The water inlet of the collecting hole 71 is arranged at the telescopic part. When rainwater falls into the intersection teeth 52 and the telescopic part, it can flow into the second beam body 2 from the collecting hole 71 and then be discharged from the drainage hole 7 to prevent water accumulation from affecting the operation of the bridge; or when the plate body 5 is overlapped on the first beam body 1, the drainage hole 7 is arranged inside the first beam body 1, and the collecting hole 71 is arranged on the surface of the first beam body 1 to be connected with the drainage hole 7.
[0048] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.
[0049] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.
[0050] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.
Claims
1. A pre-tensioned bridge telescopic structure, characterized in that: It includes: Two plate bodies (5), the two plate bodies (5) are used to be relatively erected on both sides of the expansion joint (3) along the longitudinal bridge direction, the opposite sides of the two plate bodies (5) are both provided with interlocking teeth (52) at intervals, the opposite sides of the two plate bodies (5) are both provided with connecting cavities (53) at intervals, the interlocking teeth (52) on one of the plate bodies (5) correspond to the connecting cavity (53) on the other of the plate bodies (5), and a telescopic portion is formed between the corresponding interlocking teeth (52) and the connecting cavity (53); A plurality of telescopic components, wherein one end of a telescopic component on one of the plates (5) is slidably connected to the connecting cavity (53) along the longitudinal bridge direction, and the other end extends to the telescopic portion to abut against the interlocking teeth (52) on another of the plates (5); Concrete (6), the concrete (6) is used to be laid on the first beam body (1) and the second beam body (2), the concrete (6) is located on one side of the plate body (5), and the top of the concrete (6) is on the same horizontal plane as the top of the plate body (5).
2. The pre-tensioned bridge telescopic structure according to claim 1, characterized in that: One end of one of the plates (5) is used to be connected to one of the first beam (1) and the second beam (2), and the other end is used to overlap the other of the first beam (1) and the second beam (2), and the intersection teeth (52) on the two plates (5) are both located on one side of the expansion joint (3).
3. The pre-tensioned bridge telescopic structure according to claim 1, characterized in that: The telescopic assembly comprises: A push spring (54), wherein the push spring (54) is fixedly connected to the connecting cavity (53) along the longitudinal bridge direction; An extension block (55), one end of which is placed in the connection cavity (53) and connected to the push spring (54), and the other end of which is placed outside the connection cavity (53) and abuts against the interlocking tooth (52).
4. The pre-tensioned bridge telescopic structure according to claim 1, characterized in that: The pre-tensioned bridge telescopic structure also includes a buffer component (4), the buffer component (4) is connected to the plate body (5), one end of the buffer component (4) is a first beam body connection end, and the other end is a second beam body connection end, and the distance between the first beam body connection end and the second beam body connection end is adjustable.
5. The pre-tensioned bridge telescopic structure according to claim 4, characterized in that: The buffer component (4) comprises: A mounting plate (410), one end of the mounting plate (410) being a second beam body connection end; A mounting block (41), one end of the mounting block (41) being a first beam body connection end, the mounting block (41) and the mounting plate (410) being used to be relatively erected on both sides of the expansion joint (3) along the longitudinal bridge direction, and a buffer cavity (42) is provided inside the mounting block (41); A damping filler (44), wherein the damping filler (44) is filled inside the buffer cavity (42) on a side away from the mounting plate (410); An abutment member is connected between the damping filler (44) and the mounting plate (410), and the abutment member is slidably connected to the inner wall of the buffer cavity (42).
6. The pre-tensioned bridge telescopic structure according to claim 5, characterized in that: The abutment member comprises: A connecting rod (49), one end of which is fixedly connected to the mounting plate (410), and the other end of which extends into the buffer cavity (42); A butt plate (48), wherein the butt plate (48) is fixedly connected to the other end of the connecting rod (49); A piston (43) is connected between the damping filler (44) and the abutment plate (48), and is slidably connected to the inner wall of the buffer chamber (42).
7. The pre-tensioned bridge telescopic structure according to claim 6, characterized in that: The buffer assembly (4) also includes a shock absorbing member, which is vertically arranged in the buffer cavity (42), and one end of the shock absorbing member abuts against the abutment member, and the other end is connected to the inner wall of the buffer cavity (42), and the distance between the two ends of the shock absorbing member is adjustable.
8. The pre-tensioned bridge telescopic structure according to claim 7, characterized in that: The shock absorbing member comprises: A telescopic rod (45), wherein the telescopic rod (45) is vertically arranged inside the buffer cavity (42), and one end of the telescopic rod (45) is connected to the inner wall of the buffer cavity (42), and the other end is fixed with a stop block (47), and the stop block (47) is in contact with the surface of the connecting rod (49); A shock absorbing spring (46) is sleeved on the outer surface of the telescopic rod (45) and abuts against the abutment block (47).
9. A bridge assembly, characterized in that: It includes: A first beam body (1); A second beam body (2), wherein an expansion joint (3) is formed between the first beam body (1) and the second beam body (2); The pre-tensioned bridge telescopic structure according to any one of claims 1 to 8, wherein the pre-tensioned bridge telescopic structure is connected to the first beam body (1) and the second beam body (2).
10. The bridge assembly according to claim 9, characterized in that: One end of a plate body (5) located on the first beam body (1) is overlapped on the second beam body (2); the intersecting teeth (52) of the plate body (5) located on the first beam body (1) are located on the second beam body (2); a drainage hole (7) is provided inside the second beam body (2); a collecting hole (71) is provided on the top of the second beam body (2); the collecting hole (71) is communicated with the drainage hole (7); and a water inlet of the collecting hole (71) is provided at the position of the telescopic portion.