Bridge expansion device

Abstract

The embodiment of the utility model provides a bridge expansion device which is used for a bridge sidewalk and a non-motorized vehicle lane and comprises a base steel plate, an anchoring assembly and a plurality of supporting steel plates. The base steel plates are fixed to the beam ends on the two sides of the bridge expansion joint correspondingly. Each base steel plate comprises a plane part arranged at the top of the corresponding beam end and an inclined part formed by bending and extending the plane part in the direction of the bridge expansion joint. The anchoring assembly is fixedly connected with the base steel plate and the beam end. The supporting steel plates are arranged on the corresponding inclined parts at intervals in the length direction of the bridge expansion joint; wherein the multiple supporting steel plates arranged on the two sides of the bridge expansion joint are mutually staggered and inserted to form a comb tooth structure, and the plane where the thickness of each supporting steel plate is located and the plane portion jointly form the top face of the comb tooth structure. Due to the narrow gap, the bridge expansion device is attractive and elegant, and the passing safety of pedestrians and non-motor vehicles is high.

Description

Technical Field

[0001] This application belongs to the technical field of bridge engineering, and particularly relates to a bridge expansion device. Background Art

[0002] At present, the requirements for the safety, comfort and visual quality of the sidewalks and non-motor vehicle lanes of urban and scenic area bridges have been further improved, and the bridge expansion device plays a crucial role in the safety and comfort of bridge passage.

[0003] Currently, the expansion devices for the sidewalks and non-motor vehicle lanes of bridges usually adopt ordinary modular or comb-tooth plate expansion devices. When the width of the expansion device gap caused by environmental temperature changes in the bridge is about 5 cm to 15 cm, the gap is relatively large, and there are certain safety hazards when pedestrians and non-motor vehicles pass through.

[0004] In view of the above problems, it is necessary to propose a bridge expansion device with reasonable design and effective solution to the above problems. Utility Model Content

[0005] The embodiments of the present disclosure aim to at least solve one of the technical problems existing in the prior art, and provide a bridge expansion device.

[0006] The embodiments of the present disclosure provide a bridge expansion device for the sidewalks and non-motor vehicle lanes of bridges, including:

[0007] A base steel plate, which is used to be fixed at the beam ends on both sides of the bridge expansion joint respectively.

[0008] Wherein, the base steel plate includes a flat portion arranged on the top of the beam end and an inclined portion formed by bending and extending the flat portion towards the direction of the bridge expansion joint.

[0009] An anchoring assembly, which is arranged in the beam end and the anchoring assembly is fixedly connected with the base steel plate and the beam end respectively.

[0010] A plurality of support steel plates, which are respectively arranged at intervals along the length direction of the bridge expansion joint on the corresponding inclined portion; wherein,

[0011] The plurality of support steel plates arranged on both sides of the bridge expansion joint are mutually staggered and interpenetrated to form a comb structure, wherein the plane where the steel plate thickness of each support steel plate is located and the flat portion together form the top surface of the comb structure.

[0012] Optionally, the plurality of support steel plates are arranged at equal intervals on the corresponding inclined portion with a preset spacing.

[0013] Optionally, the support plate includes a first support steel plate and a second support steel plate disposed on both sides of the bridge expansion joint, each having a first steel plate short side, a second steel plate short side, and a steel plate long side connected in sequence; wherein,

[0014] The first steel plate short sides of the first support steel plate and the second support steel plate are welded and fixed to the corresponding inclined surfaces.

[0015] The second steel plate short side of the first support steel plate and the second steel plate short side of the second support steel plate are interlaced with each other to form the comb structure.

[0016] The planes where the steel plate long sides of the first support steel plate and the second support steel plate are located together with the top surface of the base steel plate form the top surface of the comb structure.

[0017] Optionally, the length dimension of the first steel plate short side is the same as that of the second steel plate short side.

[0018] Optionally, the length of the first steel plate short side matches the width of the inclined surface.

[0019] Optionally, the anchoring assembly includes an anchoring stiffening rib plate and anchoring steel bars.

[0020] The first end of the anchoring stiffening rib plate is welded to the base steel plate, and the second end of the anchoring stiffening rib plate is welded to the anchoring steel bars.

[0021] Optionally, the anchoring steel bars include beam body embedded anchoring steel bars and horizontal anchoring steel bars respectively connecting the embedded anchoring steel bars and the anchoring stiffening rib plate.

[0022] Optionally, it further includes a drainage assembly.

[0023] The drainage assembly is disposed at the lower part of the support plate, and both ends of the drainage assembly are respectively connected to the base steel plate and the anchoring stiffening rib plate on both sides of the bridge expansion joint.

[0024] Optionally, the drainage assembly includes a drainage plate and a fixing plate.

[0025] The first end of the fixing plate is respectively welded to the base steel plate and the anchoring stiffening rib plate.

[0026] The second end of the fixing plate is provided with a card slot along the length direction of the bridge expansion joint.

[0027] The drainage plate includes a plate body and a pulling structure provided at opposite ends of the plate body, and the pulling structure is movably inserted into the card slot.

[0028] Optionally, the inclination direction of the drainage board is consistent with the inclination direction of the bridge sidewalk and non-motorized vehicle lane along their width.

[0029] The embodiment of the present disclosure is a bridge expansion device, wherein a plurality of support steel plates are arranged at intervals along the length direction of the bridge expansion joint at the inclined portion of the corresponding base steel plate, wherein the plurality of support steel plates arranged on both sides of the bridge expansion joint are interlaced and interspersed to form a comb-tooth structure, and the plane where the thickness of each support steel plate is located and the plane portion of the base steel plate together form the top surface of the comb-tooth structure. The expansion device forms a finger-width comb-like narrow gap comb-tooth structure by setting the distance between each support steel plate, which is both beautiful and safe; the thickness of each support steel plate is used as the force-bearing surface, and the comb-tooth structure formed is tooth-shaped and interlocking, so that pedestrians and non-motor vehicles can pass through the tooth gap without crossing the gap or stumbling, and will not cause stumbling and bumping to pedestrians and non-motor vehicles, effectively reducing and increasing safety and comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a longitudinal cross-sectional view of a bridge expansion device according to one embodiment of the present disclosure;

[0031] Figure 2 A schematic diagram of the telescopic principle of a bridge telescopic device according to another embodiment of the present disclosure;

[0032] Figure 3 It is a schematic diagram of the planar structure of the first supporting steel plate and the second supporting steel plate in another embodiment of the present disclosure;

[0033] Figure 4 It is a top view of a bridge expansion device in another embodiment of the disclosed embodiment;

[0034] Figure 5 It is a partial structural schematic diagram of a drainage component in another embodiment of the present disclosure. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solutions of the embodiments of the present disclosure, the embodiments of the present disclosure are further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0036] like Figure 1 As shown, an embodiment of the present disclosure provides a bridge expansion device 100 for a bridge sidewalk and a non-motorized vehicle lane. Specifically, the bridge expansion device 100 is arranged in a bridge expansion joint 200 corresponding to the bridge sidewalk and the non-motorized vehicle lane, wherein the expansion device 100 includes a base steel plate 110, an anchor assembly 120 and a plurality of support steel plates.

[0037] The base steel plate 110 is used to be respectively fixed at the same positions of the beam ends 300 on both sides of the bridge expansion joint 200 along its width direction. The base steel plate 110 includes a planar portion 111 disposed on the top of the beam end 300 and an inclined portion 112 formed by bending and extending from the planar portion 111 towards the direction of the bridge expansion joint 200. Specifically, inclined surfaces are provided on the tops of the beam ends 300 on both sides of the bridge expansion joint 200, and the inclined portion 112 is disposed on the inclined surface.

[0038] The anchoring assembly 120 is disposed within the beam end 300. Among them, the first end of the anchoring assembly 120 is fixedly connected to the base steel plate 110, and the second end of the anchoring assembly 120 is used to be fixedly connected to the beam end to fix the base steel plate 110 to the beam body.

[0039] A plurality of support steel plates are respectively arranged at intervals along the length direction of the bridge expansion joint 200 on the inclined portion 112 of the corresponding base steel plate 110. Among them, the plurality of support steel plates arranged on both sides of the bridge expansion joint 200 are interlaced with each other to form a comb structure. Among them, the plane where the thickness of each support steel plate is located and the planar portion 111 of the base steel plate 110 together form the top surface of the comb structure.

[0040] Specifically, the support steel plates include a plurality of first support steel plates 131 and a plurality of second support steel plates 132. As Figure 4 shown, the plurality of first support steel plates 131 are sequentially arranged at intervals on the inclined portion 112 of the base steel plate 110 on one side of the beam expansion joint 200, and the plurality of second support steel plates 132 are sequentially arranged at intervals on the inclined portion 112 of the base steel plate 110 on one side of the beam expansion joint 200.

[0041] The inclined portion 112 of the base steel plate 110 and the plurality of first support steel plates 131 and the plurality of second support steel plates 132 welded to the inclined portion 112 together form an integral cantilever support structure. The cantilever support structure is fixed to the beam body through the anchoring assembly 120, so that the cantilever support structure and the beam body are firmly combined into a stressed whole. The cantilever support structure is telescopically arranged in the bridge expansion joint 200 to realize the connection of the beam ends 300 on both sides of the bridge expansion joint 200.

[0042] Among them, the plurality of first support steel plates 131 and the plurality of second support steel plates 132 are interlaced and translated with each other to form a comb structure, so that when the size of the bridge expansion joint 200 changes, the interlacing distance between the plurality of first support steel plates 131 and the plurality of second support steel plates 132 changes accordingly.

[0043] Specifically, by setting the distance between each supporting steel plate, the multiple first supporting steel plates 131 and the multiple second supporting steel plates 132 are interlaced and translated to form a finger-wide comb-like structure with narrow gaps, wherein the thickness of the multiple first supporting steel plates 131 and the multiple second supporting steel plates 132 are used as the force-bearing surface, and the formed comb-tooth structure is tooth-like and interlocking. When pedestrians and non-motor vehicles pass through the bridge expansion joint 200, they pass over the thickness surface of each supporting steel plate, which is safe and comfortable and increases the reliability of the expansion device 100.

[0044] like Figure 2 As shown, when the size of the bridge expansion joint 200 is large, the interlacing distance between the multiple first support steel plates 131 and the multiple second support steel plates 132 is small; when the size of the bridge expansion joint 200 is reduced, the interlacing distance between the multiple first support steel plates 131 and the multiple second support steel plates 132 increases; when the bridge expansion joint 200 is fully closed, the first support steel plates 131 completely overlap with the second support steel plates 132.

[0045] The bridge expansion device of the disclosed embodiment forms a finger-width comb-like structure with narrow gaps by setting the distance between each supporting steel plate, which is both beautiful and safe. The thickness of the first supporting steel plate and the second supporting steel plate are used as the load-bearing surface, and the formed comb-tooth structure is tooth-like and interlocking. When pedestrians and non-motor vehicles pass over the tooth gaps, there is no gap or misalignment, and pedestrians and non-motor vehicles will not be tripped or bumped, which effectively reduces and increases safety and comfort.

[0046] For example, Figure 4 As shown, a plurality of first support steel plates 131 and a plurality of second support steel plates 132 are arranged at equal intervals at a preset pitch on the corresponding inclined portion 112 of the base steel plate 110 .

[0047] It should be noted that the preset spacing can be selected according to actual needs, for example, it can be set according to the requirements of the gap size when pedestrians or non-motor vehicles pass through the comb structure, etc. This embodiment is not specifically limited.

[0048] For example, Figure 3 As shown, the first supporting steel plate 131 and the second supporting steel plate 132 each include a first steel plate short side A, a second steel plate short side B and a steel plate long side C connected in sequence. That is, the first supporting steel plate 131 and the second supporting steel plate 132 are in a triangular shape.

[0049] like Figure 1 and Figure 3 As shown, the first steel plate short sides A of the first supporting steel plate 131 and the second supporting steel plate 132 are welded and fixed to the corresponding inclined portions 112 .

[0050] The second short side B of the first support steel plate 131 and the second short side B of the second support steel plate 132 are interlaced and translated with each other to form a comb structure.

[0051] The plane where the long side C of the steel plate of the first support steel plate 131 and the second support steel plate 132 and the top surface of the base steel plate 110 together form the top surface of the comb structure. As shown in the figure, the long side C of the steel plate is the top surface (the plane where the thickness is located) of the first support steel plate 131 and the second support steel plate 132. That is to say, the top surfaces of the first support steel plate 131 and the second support steel plate 132 and the top surface of the base steel plate 110 together form the top surface of the comb structure.

[0052] In this embodiment, taking the long side of the steel plate of the first support steel plate and the second support steel plate, that is, taking the plane where the thickness of the first support steel plate and the second support steel plate is located as the stress surface, the reliability of the telescopic structure is increased.

[0053] Exemplarily, as Figure 1 and Figure 3 shown, the length dimension of the first short side A of the steel plate is the same as the length dimension of the second short side B of the steel plate. That is to say, the first support steel plate 131 and the second support steel plate 132 are isosceles triangle steel plates, and the long side C of the steel plate is flush with the plane part 111 of the base steel plate 110. Optionally, the first support steel plate 131 and the second support steel plate 132 can also be equilateral triangle steel plates. That is to say, the length dimension of the first short side A of the steel plate, the length dimension of the second short side B of the steel plate and the length dimension of the long side C of the steel plate are the same.

[0054] Exemplarily, the length of the first short side A of the steel plate matches the width of the inclined part 112. Specifically, the top of the first short side A of the steel plate is flush with the top of the inclined part 112 so that the long side C of the steel plate is flush with the plane part 111 of the base steel plate 110. The bottom of the first short side A of the steel plate can be arranged at the bottom of the inclined part 112, and the specific position can be set according to the length of the first short side A of the steel plate.

[0055] Exemplarily, as Figure 1 shown, the anchoring assembly 120 includes an anchoring stiffening rib plate 121 and anchoring steel bars. The first end of the anchoring stiffening rib plate 121 is welded to the base steel plate 110, and the second end of the anchoring stiffening rib plate 121 is welded to the anchoring steel bars.

[0056] Furthermore, the anchoring steel bars include a beam body embedded anchoring steel bar 122 and a horizontal anchoring steel bar 123 that respectively connects the embedded anchoring steel bar 122 and the anchoring stiffening rib plate 121.

[0057] Specifically, first weld the base steel plate 110 to the anchoring stiffening rib plate 121, then weld the anchoring stiffening rib plate 121 to the embedded anchoring steel bars 122 and horizontal anchoring steel bars 123 of the beam body, so that the cantilever support structure and the beam body are connected as a stressed whole.

[0058] Exemplarily, as Figure 1 shown, the expansion device 100 further includes a drainage assembly. The drainage assembly is disposed at the lower parts of the first support plate 131 and the second support plate 132, and both ends of the drainage assembly are respectively connected to the base steel plate 110 and the anchoring stiffening rib plate 121 on both sides of the bridge expansion joint 200. The drainage assembly can collect the sewage entering the beam expansion joint 200 through the expansion device and discharge the sewage.

[0059] Exemplarily, as Figure 1 shown, the drainage assembly includes a drainage plate 141 and a fixing plate 142. The first ends of the fixing plate 142 are respectively welded to the base steel plate 110 and the anchoring stiffening rib plate 121. As Figure 5 shown, a card slot 142a along the length direction of the bridge expansion joint 200 is provided at the second end of the fixing plate 142.

[0060] Specifically, as Figure 1 shown, the first ends of the fixing plate 142 are respectively welded to the bottom of the inclined portion 112 of the base steel plate 110 and the anchoring stiffening rib plate 121, which can ensure the stability of the fixing plate 142. Among them, the fixing plate 142 can be made of profiled sheet steel.

[0061] The drainage plate 141 includes a plate body 141a and a drawing structure 141b provided at opposite ends of the plate body 141a. The drawing structure 141b is movably inserted into the card slot 142a, so that the drainage plate 141 can be drawn and moved along the length direction of the plate body 141a in the card slot 141a through the drawing structure 141b, thereby realizing the replacement of the drainage plate 141, and further facilitating the maintenance and replacement of the drainage plate 141.

[0062] It should be noted that the size of the drawing structure 141b is slightly smaller than the size of the card slot 142a to ensure that the drawing structure 141b will not fall out of the card slot 142a and ensure the reliability of the drainage plate 141.

[0063] Exemplarily, the inclination direction of the drainage plate 141 is the same as the inclination direction of the bridge sidewalk and non-motor vehicle lane along its width, so that the sewage entering the drainage plate 141 can flow out along the inclination direction, reducing the number of sewage cleaning times.

[0064] Specifically, in this embodiment, the drainage plate 141 can be made of a rubber drainage plate. The rubber drainage plate is strip-shaped. Due to the flexibility of the rubber drainage plate, the rubber drainage plate can naturally droop into a trough shape.

[0065] In this embodiment, the waterproof measure of this telescopic device is to set a fixed plate with a clamping groove at the bottom of the telescopic device, and a pull-out drainage plate is installed in the clamping groove for drainage and anti-pollution. The structure is simple, which is convenient for cleaning, maintenance and replacement. Due to the good waterproof effect, the economic benefit is outstanding.

[0066] It can be understood that the above embodiments are only exemplary embodiments adopted to illustrate the principle of the embodiments of the present disclosure. However, the embodiments of the present disclosure are not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the embodiments of the present disclosure, and these modifications and improvements are also regarded as the protection scope of the embodiments of the present disclosure.

Claims

1. A bridge expansion device, used for bridge sidewalks and non-motorized vehicle lanes, characterized in that: include: A base steel plate, used to be fixed to the beam ends on both sides of the bridge expansion joint, wherein the base steel plate includes a plane portion arranged on the top of the beam end and an inclined portion formed by bending and extending the plane portion toward the bridge expansion joint; An anchoring assembly is arranged in the beam end and the anchoring assembly is fixedly connected to the base steel plate and the beam end respectively; A plurality of supporting steel plates are respectively arranged at intervals on the corresponding inclined portions along the length direction of the bridge expansion joint; wherein, The multiple supporting steel plates arranged on both sides of the bridge expansion joint are interlaced and interlaced to form a comb-tooth structure, wherein the plane where the steel plate thickness of each supporting steel plate is located and the plane portion together form the top surface of the comb-tooth structure; wherein, The supporting steel plates include a plurality of first supporting steel plates and a plurality of second supporting steel plates respectively arranged on the inclined portions on both sides of the bridge expansion joint, wherein when the bridge expansion joint is fully closed, the first supporting steel plates completely overlap with the second supporting steel plates.

2. The telescopic device according to claim 1, characterized in that: The plurality of support steel plates are arranged at equal intervals at a preset pitch on the corresponding inclined portions.

3. The telescopic device according to claim 1, characterized in that: The supporting steel plate comprises a first supporting steel plate and a second supporting steel plate which are arranged on both sides of the bridge expansion joint and have a first steel plate short side, a second steel plate short side and a steel plate long side which are connected in sequence; wherein, The first steel plate short sides of the first supporting steel plate and the second supporting steel plate are welded and fixed to the corresponding inclined surfaces; The short side of the second steel plate of the first supporting steel plate and the short side of the second steel plate of the second supporting steel plate are interlaced and interspersed with each other to form the comb-tooth structure; The plane where the long sides of the first supporting steel plate and the second supporting steel plate are located and the top surface of the base steel plate jointly form the top surface of the comb-tooth structure.

4. The telescopic device according to claim 3, characterized in that: The length dimension of the short side of the first steel plate is the same as the length dimension of the short side of the second steel plate.

5. The telescopic device according to claim 3, characterized in that: The length of the short side of the first steel plate matches the width of the inclined surface.

6. The telescopic device according to any one of claims 1 to 5, characterized in that: The anchoring assembly includes an anchoring stiffening rib plate and an anchoring steel bar; The first end of the anchoring stiffening rib plate is welded to the base steel plate, and the second end of the anchoring stiffening rib plate is welded to the anchoring steel bar.

7. The telescopic device according to claim 6, characterized in that: The anchoring steel bars include pre-embedded anchoring steel bars in the beam body and horizontal anchoring steel bars respectively connecting the pre-embedded anchoring steel bars and the anchoring stiffening rib plates.

8. The telescopic device according to claim 6, characterized in that: Also included is a drainage assembly; The drainage component is arranged at the lower part of the supporting steel plate, and the two ends of the drainage component are respectively connected to the base steel plate and the anchor stiffening rib plate on both sides of the bridge expansion joint.

9. The telescopic device according to claim 8, characterized in that: The drainage assembly includes a drainage plate and a fixing plate; The first ends of the fixing plates are respectively welded to the base steel plate and the anchoring stiffening rib plate; The second end of the fixing plate is provided with a slot along the length direction of the bridge expansion joint; The drainage board includes a board body and a pull-out structure arranged at two opposite ends of the board body, and the pull-out structure can be movably inserted into the card slot.

10. The telescopic device according to claim 9, characterized in that: The inclination direction of the drainage plate is consistent with the inclination direction of the bridge sidewalk and the non-motorized vehicle lane along their width.

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