Seamless bridge expansion device and bridge

Abstract

The embodiment of the utility model provides a seamless bridge expansion device and a bridge. The seamless bridge expansion device comprises special-shaped steel boundary beams, rubber expansion bodies, construction steel plates, supporting cross beams and anchoring assemblies, and the special-shaped steel boundary beams are anchored to the beam ends of the two sides of a bridge expansion joint respectively; the multiple rubber expansion bodies and the multiple structural steel plates are sequentially arranged in a staggered mode to form a composite structural body distributed between the deformed steel boundary beams, so that a seamless connecting face is formed at the top of the bridge expansion joint. The supporting cross beam sequentially penetrates through the deformed steel boundary beam and the composite structure in a sliding mode so that the composite structure can be supported on the deformed steel boundary beam in a suspended mode. The first end of the anchoring assembly is fixedly connected with the deformed steel boundary beam, and the second end of the anchoring assembly is used for being fixedly connected with the beam end. The device integrates the excellent performance of firmness and durability of a multi-seam modular structure and the characteristics of seamless shock absorption and noise reduction, is easy and convenient to install, convenient to maintain and replace, high in bearing capacity for resisting repeated impact of an automobile, durable and remarkable in shock absorption and noise reduction effect.

Description

Technical Field

[0001] The embodiments of the present disclosure belong to the technical field of bridge engineering, and particularly relate to a seamless bridge expansion device and a bridge. Background Art

[0002] With the rapid development of the economy and the urbanization process, while the urban scale is continuously expanding, the number of bridges is also increasing rapidly. Along with the public's in-depth participation in traffic engineering, while the traffic quality is continuously improving, the requirements for the safety and comfort of automobile travel are further increased, and the bridge expansion device plays a crucial role in the safety and comfort of bridge traffic.

[0003] Currently, the general bridge expansion devices commonly use modular or comb-tooth plate expansion devices. The common bridge modular expansion device is known for its simple structure and durability. However, there is one or more transverse through-slots perpendicular to the line direction between the special-shaped steel cross beams or side beams of the modular expansion device, and the width of the through-slots changes with the ambient temperature. When the vehicle passes through the gap of the expansion device, vibrations and noises are generated; while the comb-tooth plate expansion device has the advantages of shock absorption and noise reduction for vehicle passage, but the traditional comb-tooth type expansion device is assembled by multiple parts and connected by bolts, with poor integrity. Long-term load impact and vibration are likely to cause loosening of the fastening bolts, warping and deformation of the comb-tooth plates, fatigue damage of the parts, and debris jamming in the gaps, affecting the function. If the management and maintenance are not timely, it is easy to cause damage, and in severe cases, it may cause traffic accidents.

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

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

[0006] One aspect of the embodiments of the present disclosure provides a seamless bridge expansion device. A plurality of the seamless bridge expansion devices are sequentially arranged along the length direction of the bridge expansion joint. The device includes:

[0007] Special-shaped steel side beams, which are respectively anchored to the two beam ends of the bridge expansion joint;

[0008] Rubber expansion bodies and structural steel plates. A plurality of the rubber expansion bodies and a plurality of the structural steel plates are sequentially arranged in an alternating manner to form a composite structure distributed between the special-shaped steel side beams, so as to form a seamless connection surface at the top of the bridge expansion joint;

[0009] Support cross beams, which sequentially slide through the special-shaped steel side beams and the composite structure to suspend the composite structure on the special-shaped steel side beams;

[0010] An anchoring assembly, the first end of the anchoring assembly is fixedly connected to the profiled steel side beam, and the second end of the anchoring assembly is used for fixedly connecting to the beam end.

[0011] Optionally, it further includes a plurality of connecting beams fixed to the profiled steel side beam, and the plurality of connecting beams are sequentially connected to enclose a telescopic chamber;

[0012] Both ends of the support cross beam pass through the profiled steel side beam and extend into the telescopic chamber.

[0013] Optionally, the rubber expansion body includes a rubber bearing plate and a plurality of rubber support plates connected to the rubber bearing plate;

[0014] The rubber bearing plate is arranged on the seamless joint surface;

[0015] The plurality of rubber support plates and the plurality of structural steel plates are alternately distributed to form the composite structure.

[0016] Optionally, the surface of the rubber bearing plate is provided with anti-slip lines.

[0017] Optionally, the structural steel plate includes a flat steel plate and a T-shaped steel plate; wherein,

[0018] The bottoms of the rubber support plates located on both sides of the T-shaped steel plate are arranged on the flange plates of the T-shaped steel plate.

[0019] Optionally, the profiled steel side beam and the composite structure are both provided with through holes corresponding to the support cross beam, and the support cross beam is slidably inserted into the through holes; wherein,

[0020] The diameter of the through hole is larger than the diameter of the support cross beam.

[0021] Optionally, the profiled steel side beam is an L-shaped steel side beam.

[0022] Optionally, the anchoring assembly includes beam-end embedded anchoring steel bars, connecting anchoring steel bars and longitudinally internally penetrating anchoring steel bars; wherein,

[0023] The first end of the connecting anchoring steel bar is connected to the profiled steel side beam, and the second end of the connecting anchoring steel bar is respectively connected to the beam-end embedded anchoring steel bar and the longitudinally internally penetrating anchoring steel bar.

[0024] Optionally, the support cross beam is a circular support cross beam.

[0025] Another aspect of the embodiments of the present disclosure provides a bridge, which adopts the seamless bridge expansion device described above.

[0026] The seamless bridge expansion device and bridge according to the embodiments of the present disclosure. In this expansion device, a plurality of rubber expansion bodies and a plurality of structural steel plates are arranged alternately with each other in sequence to form a composite structure distributed between the profiled steel side beams, so as to form a seamless connection surface at the top of the bridge expansion joint; the support cross beam slides through the profiled steel side beams and the composite structure in sequence to suspend the composite structure on the profiled steel side beams; it not only realizes the one-way expansion of the composite structure, but also realizes the characteristics of a flat and seamless surface of the seamless expansion device. When a vehicle passes through the surface of the expansion device, there are no gaps and potholes to cause bumps, generating extremely small vibrations and noises, thus achieving the advantage of improving the environmental protection quality.

[0027] The seamless bridge expansion device according to the embodiments of the present disclosure combines the excellent performance of the multi-seam modular structure being strong and durable and the characteristics of seamless shock absorption and noise reduction. It is easy to install, convenient for maintenance and replacement. Even if the rubber expansion body at the vulnerable part is damaged, it will not cause safety hazards while ensuring the normal traffic demand. It has a strong resistance to repeated impacts of vehicles and is durable, and the shock absorption and noise reduction effect is remarkable. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an assembly schematic diagram of a seamless bridge expansion device and a beam body in an embodiment of the present disclosure;

[0029] Figure 2 It is a cross-sectional view of a seamless bridge expansion device in another embodiment of the present disclosure;

[0030] Figure 3 It is a plan view of a seamless bridge expansion device in another embodiment of the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] To enable those skilled in the art to better understand the technical solutions of the embodiments of the present disclosure, the following further describes the embodiments of the present disclosure in detail with reference to the drawings and specific embodiments.

[0032] As Figure 1 shown, the embodiments of the present disclosure provide a seamless bridge expansion device 100. A plurality of seamless bridge expansion devices 100 are arranged in sequence along the length direction of the bridge expansion joint 200 to realize the connection of the bridge expansion joint 200. That is to say, a plurality of seamless bridge expansion devices 100 are provided in the bridge expansion joint 200.

[0033] As Figure 1 shown, the seamless bridge expansion device 100 of this embodiment includes profiled steel side beams 110, rubber expansion bodies 120, structural steel plates 130, support cross beams 140, and anchoring components 150.

[0034] The profiled steel side beams 110 are respectively anchored to the two side beam ends 300 of the bridge expansion joint 200 to fix the seamless bridge expansion device 100 to the beam ends 300. That is to say, the two profiled steel side beams 110 fixed to the two side beam ends 300 of the bridge expansion joint 200 are the force-bearing skeletons of the seamless bridge expansion device 100.

[0035] Specifically, in this embodiment, the profiled steel side beam 110 adopts an L-shaped steel side beam.

[0036] Among them, the long side of the L-shaped steel side beam is anchored to the side wall of the beam end 300, and the short side of the L-shaped steel side beam is located at the bottom of the seamless bridge expansion device 100. There is no specific limitation on the type of the profiled steel side beam 110, and it can be selected according to actual needs.

[0037] A plurality of rubber expansion bodies 120 and a plurality of structural steel plates 130 are arranged alternately with each other in sequence to form a composite structure A distributed between the profiled steel side beams 110, so as to form a seamless connection surface at the top of the bridge expansion joint 200.

[0038] Specifically, as Figure 1 shown, in this embodiment, the rubber expansion bodies 120 and the structural steel plates 130 are arranged alternately with each other in sequence to form a composite structure A in which elastic materials and rigid materials are arranged alternately. The composite structure A is filled and distributed between the two profiled steel side beams 110 to form a seamless connection surface at the top of the bridge expansion joint 200. That is to say, the seamless connection surface is composed of the thickness surfaces of the rubber expansion bodies 120 and the structural steel plates 130, thereby realizing a seamless structure.

[0039] The support cross beam 140 slides through the profiled steel side beam 110 and the composite structure A in sequence. Figure 1 and Figure 2 The right side shows a schematic diagram of half of the support cross beam 140. In fact, both ends of the support cross beam 140 pass through the profiled steel side beam 110 and extend outside the profiled steel side beam 110 to suspend and support the composite structure A on the profiled steel side beam 110, which is convenient for installation.

[0040] Specifically, the rubber expansion bodies 120 and the structural steel plates 130 are suspended on the two profiled steel side beams 110 through the support cross beam 140. On the one hand, the transverse expansion of the composite structure A can be realized through the support cross beam 140; on the other hand, the vertical rigid support effect on the composite structure A can be realized through the support cross beam 140.

[0041] It should be noted that the number of support crossbeams 140 is at least two, which are respectively arranged at both ends of the profiled steel side beam 110 along its length direction. Of course, the specific number of the support crossbeams 140 is not specifically limited. For example, it can be three, with one arranged at each of the two ends and the middle position of the profiled steel side beam 110, and can be selected according to actual needs.

[0042] The first end of the anchoring assembly 150 is fixedly connected to the profiled steel side beam 110, and the second end of the anchoring assembly 150 is used to be fixedly connected to the beam end 300. Through the anchoring assembly 150, the profiled steel side beam 110 and the beam end 300 are firmly combined into a stress-bearing whole, and further, the entire seamless bridge expansion device 100 and the beam end 300 are firmly combined into a stress-bearing whole.

[0043] In the seamless bridge expansion device of the embodiment of the present disclosure, a plurality of rubber expansion bodies and a plurality of structural steel plates are arranged alternately with each other in sequence to form a composite structure distributed between the profiled steel side beams, so as to form a seamless connection surface at the top of the bridge expansion joint; the support crossbeams slide through the profiled steel side beams and the composite structure in sequence to suspend the composite structure on the profiled steel side beams; it not only realizes the one-way expansion and contraction of the composite structure, but also realizes the characteristics of the seamless expansion device with a flat and seamless surface. When an automobile passes through the surface of the expansion device, there are no gaps and potholes to cause bumps, generating extremely small vibrations and noises, thereby achieving the advantage of improving the environmental protection quality.

[0044] The seamless bridge expansion device of the embodiment of the present disclosure combines the excellent performance of the multi-seam modular structure being strong and durable and the characteristics of seamless shock absorption and noise reduction. It is easy to install, convenient for maintenance and replacement. Even if the rubber expansion body at the vulnerable part is damaged, it will not cause safety hazards while ensuring the normal traffic demand. It has a strong resistance to repeated impacts of automobiles, is durable, and has a significant shock absorption and noise reduction effect.

[0045] Exemplarily, as Figure 1 and Figure 2 shown, the seamless bridge expansion device 100 further includes a plurality of connecting beams 160 fixed to the profiled steel side beam 110, and the plurality of connecting beams 160 are connected in sequence to enclose a telescopic chamber 170. Both ends of the support crossbeam 140 pass through the profiled steel side beam 110 and extend into the telescopic chamber 170. The telescopic chamber 170 can play a role in limiting the lateral expansion and contraction range of the support crossbeam 140, that is to say, the support crossbeam 140 can only perform lateral expansion and contraction within the telescopic chamber 170.

[0046] It should be noted that in this embodiment, the support crossbeam 140 is a circular support crossbeam, and the specific shape of the support crossbeam 140 is not specifically limited and can be selected according to actual needs.

[0047] Exemplarily, as Figure 2As shown, the rubber expansion body 120 includes a rubber bearing plate 121 and a plurality of rubber supporting plates 122 connected to the rubber bearing plate 121 .

[0048] The rubber bearing plate 121 is arranged on the seamless connection surface, that is, the rubber bearing plate 121 is laid flat on the seamless connection surface to form a seamless bridge expansion device 100 with a smooth and seamless surface. A plurality of rubber supporting plates 122 and a plurality of structural steel plates 130 are interlaced to form a composite structure A.

[0049] In this embodiment, a rubber bearing plate is provided on the surface of the seamless bridge expansion device, which can effectively buffer the load impact generated when a car passes by. While significantly improving the structural service life of the expansion device, it effectively reduces hazards such as vibration and noise.

[0050] For example, Figure 3 As shown, the surface of the rubber bearing plate 121 is provided with anti-skid patterns 121a. The anti-skid patterns 121a can be in the shape of a long strip as shown in the figure, or in other shapes, which are not specifically limited in this embodiment.

[0051] In this embodiment, the surface of the rubber bearing plate 121 is provided with anti-skid patterns, which can prevent the passing cars from skidding.

[0052] For example, Figure 2 As shown, the structural steel plate 130 includes a flat steel plate 131 and a T-shaped steel plate 132. In this embodiment, the rubber support plate 122, the flat steel plate 131, the rubber support plate 122, and the T-shaped steel plate 132 are arranged alternately. The wing plate of the T-shaped steel plate 132 is located at the bottom to form an inverted T shape.

[0053] Among them, the bottom of the rubber support plate 122 located on both sides of the T-shaped steel plate 132 is set on the wing plate of the T-shaped steel plate. This design can prevent the rubber support plate 122 from fatigue and falling under long-term repeated pressure, and play a lifting role on the lower end of the rubber support plate 122.

[0054] Exemplarily, both the special-shaped steel side beam 110 and the composite structure A are provided with through holes corresponding to the supporting cross beam 140 , and the supporting cross beam 140 is slidably inserted into the through holes to support the composite structure A on the special-shaped steel side beam 110 .

[0055] The diameter of the through hole is larger than the diameter of the supporting beam 140. Specifically, the diameter of the through hole is slightly larger than the diameter of the supporting beam 140, as long as the supporting beam 140 can be slidably disposed in the through hole.

[0056] It should be noted that the shape of the through hole is not specifically limited in this embodiment, as long as it matches the shape of the supporting beam 140 , and can be selected according to actual needs.

[0057] Exemplarily, the anchoring assembly 150 includes beam-end embedded anchoring steel bars, connecting anchoring steel bars, and longitudinally internally penetrating anchoring steel bars; wherein, the first end of the connecting anchoring steel bar is connected to the profiled steel side beam 110, and the second end of the connecting anchoring steel bar is respectively connected to the beam-end embedded anchoring steel bar and the longitudinally internally penetrating anchoring steel bar.

[0058] Specifically, the tail end of the profiled steel side beam 110 is welded to the connecting anchoring steel bar, and the connecting anchoring steel bar is respectively connected to the beam-end embedded anchoring steel bar ring and the longitudinally internally penetrating anchoring steel bar to form a closed-loop stress structure. Through the anchoring assembly 150, the composite structure A, the profiled steel side beam 110, and the beam body are firmly combined into a stress integral body.

[0059] Another aspect of the embodiments of the present disclosure provides a bridge that adopts the seamless bridge expansion device 100 described above. The specific structural features of the seamless bridge expansion device 100 have been described in detail above and will not be elaborated herein.

[0060] The bridge of the embodiments of the present disclosure adopts the seamless bridge expansion device described above. The seamless bridge expansion device has a strong ability to resist repeated impacts of vehicles, is durable, has a significant shock absorption and noise reduction effect, and increases the reliability of the bridge.

[0061] It can be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principles 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 seamless bridge expansion device, characterized in that: A plurality of seamless bridge expansion devices are sequentially arranged along the length direction of the bridge expansion joint, and the devices include: Special-shaped steel side beams, the special-shaped steel side beams are respectively anchored at the beam ends on both sides of the bridge expansion joint; A rubber expansion body and a structural steel plate, wherein a plurality of the rubber expansion bodies and a plurality of the structural steel plates are arranged alternately in sequence to form a composite structure distributed between the special-shaped steel side beams to form a seamless connection surface at the top of the bridge expansion joint; A supporting crossbeam, wherein the supporting crossbeam slides through the special-shaped steel side beam and the composite structure in sequence, so as to support the composite structure in mid-air on the special-shaped steel side beam; An anchor assembly, wherein the first end of the anchor assembly is fixedly connected to the special-shaped steel side beam, and the second end of the anchor assembly is used to be fixedly connected to the beam end.

2. The seamless bridge expansion device according to claim 1, characterized in that: It also includes a plurality of connecting beams fixed to the special-shaped steel side beams, wherein the plurality of connecting beams are sequentially connected to form a telescopic chamber; Both ends of the supporting cross beam pass through the special-shaped steel side beam and extend to the telescopic chamber.

3. The seamless bridge expansion device according to claim 1, characterized in that: The rubber expansion body comprises a rubber bearing plate and a plurality of rubber support plates connected to the rubber bearing plate; The rubber bearing plate is arranged on the seamless connection surface; The plurality of rubber support plates and the plurality of structural steel plates are arranged in an interlaced manner to form the composite structure.

4. The seamless bridge expansion device according to claim 3 is characterized in that: The surface of the rubber bearing plate is provided with anti-skid patterns.

5. The seamless bridge expansion device according to claim 3 is characterized in that: The structural steel plate includes a flat steel plate and a T-shaped steel plate; wherein, The bottoms of the rubber support plates located on both sides of the T-shaped steel plate are arranged on the wing plates of the T-shaped steel plate.

6. The seamless bridge expansion device according to any one of claims 1 to 5, characterized in that: The special-shaped steel side beam and the composite structure are both provided with through holes corresponding to the supporting cross beams, and the supporting cross beams are slidably inserted into the through holes; wherein, The diameter of the through hole is larger than the diameter of the supporting beam.

7. The seamless bridge expansion device according to any one of claims 1 to 5, characterized in that: The special-shaped steel side beam is an L-shaped steel side beam.

8. The seamless bridge expansion device according to any one of claims 1 to 5, characterized in that: The anchoring assembly includes pre-buried anchoring steel bars at the beam ends, connecting anchoring steel bars and longitudinally inserted anchoring steel bars; wherein, The first end of the connecting anchor steel bar is connected to the special-shaped steel side beam, and the second end of the connecting anchor steel bar is respectively connected to the pre-embedded anchor steel bar at the beam end and the longitudinal inner-penetrating anchor steel bar.

9. The seamless bridge expansion device according to any one of claims 1 to 5, characterized in that: The supporting beam is a circular supporting beam.

10. A bridge, characterized in that: A seamless bridge expansion device according to any one of claims 1 to 9 is adopted.

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