Bridge expansion joint device
By using a combined structure of small-miles side anchoring blocks, large-miles side anchoring blocks, expansion joint covers and stiffener plates in the bridge expansion joint, the comfort, noise and water leakage of the bridge expansion joint are solved, and the vehicle zero sense is achieved Pass and simplify maintenance.
Patent Information
- Application Number
- CN202420423118.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-05
- Publication Date
- 2024-12-06
- Estimated Expiration
- 2034-03-05
AI Technical Summary
The existing bridge expansion joints have problems such as poor driving comfort, high noise, and rainwater leakage, and are difficult to install, inspect and maintain.
The combined structure of small-miles side anchoring block, large-miles side anchoring block, telescopic joint cover plate and stiffener plate is adopted. The upper surface of the telescopic joint cover plate is flush with the bridge surface, hinged on the small-miles side anchoring block, and anti-slip grooves are set up. and drain tank, stiffener plates match the end surface of the anchor block to form a support structure to improve load-bearing capacity and prevent water leakage.
The vehicle is realized with zero sense of passage, reducing noise and impact, preventing debris accumulation, simplifying maintenance, preventing cover plate offset and water leakage, and improving the stability and durability of the bridge expansion joints.
Smart Images
Figure CN222119918U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bridge expansion joint devices, and in particular relates to a bridge expansion joint device. Background Art
[0002] Bridge expansion joint: refers to the expansion device set between two beams or between the beam and the abutment to meet the deformation requirements of the bridge deck. The expansion joint is required to be able to freely expand and contract in the direction parallel to the bridge axis, and to be firm and reliable. When vehicles pass through, they should be smooth, without sudden jumps and noise; they should be able to prevent rainwater and garbage and soil from infiltrating and blocking; they should be easy and convenient to install, inspect, maintain, and remove dirt. At the expansion joint, the railings and the bridge deck pavement should be disconnected.
[0003] The function of bridge expansion joints is to adjust the displacement and connection between the superstructure caused by vehicle loads and bridge construction materials. Once the expansion joints of a bridge are damaged, it will seriously affect the speed, comfort and safety of driving, and even cause driving safety accidents.
[0004] At present, bridge expansion joints are divided into three main categories according to materials: steel expansion joints, plate rubber expansion joints and comb plate expansion joints.
[0005] However, traditional expansion joints currently on the market generally have problems such as poor driving comfort, uneven driving when vehicles pass by, loud noise, and rainwater leakage. Utility Model Content
[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a bridge expansion joint device.
[0007] In order to solve the above problems, the utility model adopts the following technical solutions:
[0008] A bridge expansion joint device comprises a small mileage side anchor block, a large mileage side anchor block, an expansion joint cover plate and a stiffening rib plate, wherein the small mileage side anchor block and the large mileage side anchor block are respectively anchored on the small mileage side and the large mileage side of the bridge expansion joint, and the two are arranged opposite to each other, the front and rear sides of the expansion joint cover plate are respectively erected above the small mileage side anchor block and the large mileage side anchor block, the upper surface of the expansion joint cover plate is flush with the bridge surface, the front side edge of the expansion joint cover plate is hinged on the upper surface of the small mileage side anchor block, a plurality of stiffening rib plates are respectively connected to the end faces of the small mileage side anchor block and the large mileage side anchor block facing each other, and the upper surface of the stiffening rib plate is flush with the upper surfaces of the small mileage side anchor block and the large mileage side anchor block.
[0009] Preferably, the upper surface of the large mileage side anchor block is a flat surface, and the distance from the rear edge of the expansion joint cover plate to the edge of the side where the large mileage side anchor block is connected to the large mileage side bridge is ≥ the expansion amount of the expansion joint.
[0010] Preferably, an anti-slip groove is provided on the upper surface of the expansion joint cover plate.
[0011] Preferably, expansion grooves for accommodating opposite stiffening ribs are respectively arranged on the facing end faces of the small-mileage side anchor block and the large-mileage side anchor block, the shape of the expansion grooves matches the outer contour of the stiffening ribs, and the distance from the expansion grooves to the opposite stiffening ribs is ≥ the expansion amount of the expansion joint.
[0012] Preferably, drainage grooves are provided on the upper surfaces of the small-mileage side anchor block and the large-mileage side anchor block, and rainwater flow grooves are provided on the end faces facing each other of the small-mileage side anchor block and the large-mileage side anchor block, and the ends of the drainage grooves on the small-mileage side anchor block and the large-mileage side anchor block extend to the end faces of the small-mileage side anchor block and the large-mileage side anchor block respectively, the upper side of the rainwater flow groove is open and lower than the drainage groove, and the end of the rainwater flow groove is connected to the bridge drainage pipe.
[0013] Preferably, the rainwater gutter is a U-shaped gutter.
[0014] Preferably, the connection between the upper surface of the long-mileage side bridge and the upper surface of the long-mileage side anchor block is an inclined surface connection.
[0015] Beneficial effects of the utility model
[0016] Compared with the prior art, the advantages of the present invention are:
[0017] The upper surface of the expansion joint cover plate of the utility model is flush with the surface of the bridge, and a stiffening rib is arranged under the expansion joint cover plate to support it, thereby improving the vertical bearing capacity of the expansion joint cover plate, and at the same time avoiding the expansion joint cover plate from bending under pressure, which causes the surface of the bridge expansion joint to be uneven, thereby achieving zero-sense passage of vehicles and greatly reducing noise and impact; and the expansion joint cover plate can effectively prevent the deposition of debris in the expansion joint, thereby reducing the difficulty of operation and maintenance; the front edge of the expansion joint cover plate is hinged on the upper surface of the small mileage side anchor block, and the expansion joint cover plate is connected to the bridge, and the cover plate will not be offset or fall off, and because the expansion joint cover plate is hinged on one side of the small mileage side anchor block, the expansion joint cover plate can not only adapt to the expansion and contraction of the bridge along the longitudinal direction of the bridge, but also adapt to the turning angle of the beam end around the support, and the hinged connection method of the expansion joint cover plate and one side of the bridge makes it easy to open the expansion joint cover plate to maintain the structure below. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a side view of the utility model;
[0019] Figure 2 It is a structural schematic diagram of the utility model;
[0020] Figure 3 It is a schematic diagram of the structure when the expansion joint cover of the utility model is opened. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] In the description of the present invention, it should be noted that the terms "upper / lower end", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "setting / sleeving", "sleeve connection", "connection", etc. should be understood in a broad sense. For example, "connection" 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 indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0024] See also Figure 1-3 The utility model provides a technical solution: a bridge expansion joint device, comprising a small mileage side anchor block 1, a large mileage side anchor block 2, an expansion joint cover plate 3 and a stiffening rib plate 4, the small mileage side anchor block 1 and the large mileage side anchor block 2 are respectively anchored on the small mileage side and the large mileage side of the bridge expansion joint, and the two are arranged opposite to each other, the front and rear sides of the expansion joint cover plate 3 are respectively built above the small mileage side anchor block 1 and the large mileage side anchor block 2, the upper surface of the expansion joint cover plate 3 is flush with the bridge surface, the front side edge of the expansion joint cover plate 3 is hinged on the upper surface of the small mileage side anchor block 1, a plurality of stiffening rib plates 4 are respectively connected to the end faces of the small mileage side anchor block 1 and the large mileage side anchor block 2 facing each other, and the upper surface of the stiffening rib plate 4 is flush with the upper surfaces of the small mileage side anchor block 1 and the large mileage side anchor block 2.
[0025] The upper surface of the expansion joint cover plate 3 of the utility model is flush with the surface of the bridge, and a stiffening rib 4 is arranged under the expansion joint cover plate 3 to support it, thereby improving the vertical bearing capacity of the expansion joint cover plate 3, and at the same time avoiding the expansion joint cover plate 3 from being compressed and bent, resulting in an uneven surface of the bridge expansion joint, thereby achieving zero-sense passage of vehicles and greatly reducing noise and impact; and the expansion joint cover plate 3 can effectively prevent the deposition of debris in the expansion joint, reducing the difficulty of operation and maintenance; the front edge of the expansion joint cover plate 3 is hinged on the upper surface of the small mileage side anchor block 1, and the expansion joint cover plate 3 is connected to the bridge, and the cover plate will not be offset or fall off, and since the expansion joint cover plate 3 is hinged on one side of the small mileage side anchor block 1, the expansion joint cover plate 3 can not only adapt to the expansion and contraction of the bridge along the longitudinal direction of the bridge, but also adapt to the turning angle of the beam end around the support, and the hinged connection mode of the expansion joint cover plate 3 and one side of the bridge makes it easy to open the expansion joint cover plate 3 to maintain the structure below.
[0026] It should be noted that the short mileage side described in the present invention refers to the back side in the driving direction, and the long mileage side refers to the front side in the driving direction.
[0027] Furthermore, the upper surface of the large-mileage side anchor block 2 is a flat surface, and the distance from the rear edge of the expansion joint cover plate 3 to the edge of the side connecting the large-mileage side anchor block 2 and the large-mileage side bridge is ≥ the expansion amount of the expansion joint, thereby ensuring the expansion and contraction movement space of the expansion joint cover plate 3.
[0028] Furthermore, an anti-slip groove 5 is provided on the upper surface of the expansion joint cover plate 3 to prevent the automobile tire from slipping due to the surface of the expansion joint cover plate 3 being too smooth.
[0029] Furthermore, expansion grooves 6 for accommodating opposite stiffening ribs 4 are respectively arranged on the facing end faces of the short-mileage side anchor block 1 and the long-mileage side anchor block 2. The shape of the expansion grooves 6 matches the outer contour of the stiffening ribs 4. The distance from the expansion grooves 6 to the opposite stiffening ribs 4 is ≥ the expansion amount of the expansion joint, thereby avoiding the situation in which the stiffening ribs 4 are pressed between the short-mileage side anchor block 1 and the long-mileage side anchor block 2, causing the bridge expansion joint to lose its function.
[0030] Furthermore, drainage grooves 7 are provided on the upper surfaces of the small-mileage side anchor block 1 and the large-mileage side anchor block 2, and rainwater flow grooves 8 are provided on the end faces facing each other of the small-mileage side anchor block 1 and the large-mileage side anchor block 2. The ends of the drainage grooves 7 on the small-mileage side anchor block 1 and the large-mileage side anchor block 2 extend to the end faces of the small-mileage side anchor block 1 and the large-mileage side anchor block 2 respectively. The upper side of the rainwater flow groove 8 is open and lower than the drainage groove 7. The end of the rainwater flow groove 8 is connected to the bridge drainage pipe. Rainwater can flow into the rainwater flow groove 8 along the drainage groove 7 and the expansion groove 6, and merge into the bridge drainage pipe laterally, which can effectively solve the common problem of expansion joint leakage polluting the cap beam and bridge piers, affecting the city appearance.
[0031] Specifically, the rainwater flow channel 8 is a U-shaped channel.
[0032] Furthermore, the connection between the upper surface of the long-mileage side bridge and the upper surface of the long-mileage side anchor block 2 is an inclined surface connection, which is relatively gentle, preventing the right-angle connection from causing damage to the vehicle tires, and the inclined surface connection can better allow rainwater to flow into the expansion joint and be discharged.
[0033] It should be noted that, in this article, relational terms such as first and second, etc. 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 sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".
[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A bridge expansion joint device, It is characterized in that The invention comprises a small mileage side anchor block (1), a large mileage side anchor block (2), an expansion joint cover plate (3) and a stiffening rib plate (4). The small mileage side anchor block (1) and the large mileage side anchor block (2) are respectively anchored on the small mileage side and the large mileage side of the bridge expansion joint, and the two are arranged facing each other. The front and rear sides of the expansion joint cover plate (3) are respectively laid above the small mileage side anchor block (1) and the large mileage side anchor block (2). The upper surface of the expansion joint cover plate (3) is flush with the bridge surface. The front side edge of the expansion joint cover plate (3) is hinged on the upper surface of the small mileage side anchor block (1). A plurality of stiffening rib plates (4) are respectively connected to the end faces of the small mileage side anchor block (1) and the large mileage side anchor block (2) facing each other. The upper surface of the stiffening rib plate (4) is flush with the upper surfaces of the small mileage side anchor block (1) and the large mileage side anchor block (2).
2. A bridge expansion joint device according to claim 1, It is characterized in that The upper surface of the large mileage side anchor block (2) is a flat surface, and the distance from the rear edge of the expansion joint cover plate (3) to the edge of the side where the large mileage side anchor block (2) is connected to the large mileage side bridge is greater than or equal to the expansion amount of the expansion joint.
3. A bridge expansion joint device according to claim 1, It is characterized in that The upper surface of the expansion joint cover plate (3) is provided with an anti-slip groove (5).
4. A bridge expansion joint device according to claim 1, It is characterized in that The end faces of the small mileage side anchor block (1) and the large mileage side anchor block (2) facing each other are respectively provided with expansion grooves (6) for accommodating opposite stiffening rib plates (4); the shape of the expansion grooves (6) matches the outer contour of the stiffening rib plates (4); and the distance from the expansion grooves (6) to the opposite stiffening rib plates (4) is greater than or equal to the expansion amount of the expansion joint.
5. A bridge expansion joint device according to claim 1, It is characterized in that The upper surfaces of the small mileage side anchor block (1) and the large mileage side anchor block (2) are provided with drainage grooves (7); the end surfaces of the small mileage side anchor block (1) and the large mileage side anchor block (2) facing each other are provided with rainwater flow grooves (8); the ends of the drainage grooves (7) on the small mileage side anchor block (1) and the large mileage side anchor block (2) extend to the end surfaces of the small mileage side anchor block (1) and the large mileage side anchor block (2) respectively; the upper side of the rainwater flow groove (8) is open and lower than the drainage groove (7); the end of the rainwater flow groove (8) is connected to the bridge drainage pipe.
6. A bridge expansion joint device according to claim 5, It is characterized in that The rainwater flow channel (8) is a U-shaped channel.
7. A bridge expansion joint device according to claim 1, It is characterized in that The connection between the upper surface of the long-mileage side bridge and the upper surface of the long-mileage side anchor block (2) is an inclined surface connection.