Bridge road expansion joint structure

Abstract

This application discloses a bridge and road expansion joint structure. The screw includes a rod body and an upper cap and a lower cap body spaced apart along the height of the rod body. A washer is fitted onto the rod body and located below the lower cap body. The lower cap body clamps the washer with the beam body. A circumferential buffer ring is fitted onto the rod body and its outer circumference matches the angle steel. A vertical buffer ring is fitted onto the rod body and clamped by the upper cap body and the lower plate. In the bridge and road expansion joint structure provided by this utility model, two angle steels are respectively installed in two mounting slots. Two damping strips are respectively set corresponding to the two angle steels and clamped between the angle steels and the mounting slots, providing buffering and noise reduction effects through the damping strips. The screw is connected to the embedded part, and the upper cap body clamps the washer with the beam body, ensuring the screw's fixing stability. The circumferential buffer ring is fitted onto the rod body and its outer circumference matches the angle steel. Through the presence of the circumferential buffer ring, the thermal expansion and contraction dimensions of the beam body or connecting plate can be adapted. The upper cap body fixes the connecting plate through the vertical buffer ring.

Description

Technical Field

[0001] This utility model relates to the field of bridge and road structures, and in particular to a bridge and road expansion joint structure. Background Technology

[0002] With the continuous expansion and improvement of modern transportation networks, bridge construction has also entered a period of rapid development. Various factors, such as bridge structural design, environmental temperature changes, and vehicle loads, place higher demands on the transition and displacement adaptability of bridge connections. To effectively address these challenges, engineers have extensively adopted expansion joint devices at the connections between beams. These devices not only meet the displacement requirements of the beams under temperature changes and loads but also effectively achieve multiple functions, including waterproofing, dustproofing, noise reduction, connection, and rotation.

[0003] In bridge engineering, conventional expansion joint devices need to withstand forces from multiple sources, including vertical pressure and horizontal forces, while also possessing good displacement adaptability and waterproof performance. To meet these complex functional requirements, various types of expansion joint devices have emerged in the market, with modular and comb-type being the mainstream.

[0004] Various expansion joints have a certain degree of structural complexity, which makes them inconvenient to produce and install; at the same time, they generate a lot of noise during use. Utility Model Content

[0005] The main purpose of this utility model is to provide a bridge and road expansion joint structure, which aims to solve the problems that expansion joints have a certain degree of structural complexity, which are inconvenient in the production and installation process, and generate a lot of noise during use.

[0006] To achieve the above objectives, this utility model provides a bridge and road expansion joint structure, comprising:

[0007] Two beams are matched to form a gap. Each beam has an installation groove that extends through the width direction at its inner end along its length. Multiple embedded parts are spaced apart at the bottom of the installation groove along the width of the beam.

[0008] Two angle steels are respectively installed in the two mounting slots;

[0009] Two shock-absorbing strips are respectively set for two angle steels and clamped between the angle steels and the mounting groove;

[0010] A connecting plate, supported between two angle steels, the connecting plate includes a lower plate and an upper plate connected to the lower plate, and the cross-section is convex. The damping strip, the angle steel and the lower plate are respectively provided with a first through hole, a second through hole and a third through hole corresponding to the embedded part.

[0011] Multiple screw assemblies, including screws, washers, circumferential buffer rings, and vertical buffer rings, wherein each screw includes a shank and an upper cap and a lower cap spaced apart along the height of the shank. The screw passes through the third through hole, the second through hole, and the first through hole and connects to the embedded part. The washer is fitted onto the shank and located below the lower cap. The lower cap and the beam clamp the washer. The circumferential buffer ring is fitted onto the shank and its outer periphery matches the angle steel. The vertical buffer ring is fitted onto the shank and is clamped by the upper cap and the lower plate.

[0012] Furthermore, the rod body includes an upper rod and a lower rod that are connected to each other, the upper cap body is connected to the upper rod, and the lower cap body is connected to the lower rod.

[0013] Furthermore, the upper rod and the lower rod are connected by a thread.

[0014] Furthermore, a filler strip is provided corresponding to the angle steel, and the filler strip is provided with multiple fourth through holes corresponding to multiple screws, and the filler strip connects multiple vertical buffer rings.

[0015] Furthermore, the filling strip and the plurality of vertical buffer rings are an integral structure.

[0016] Furthermore, a lower buffer layer is provided on the lower surface of the connecting plate.

[0017] Furthermore, an upper buffer layer is provided on the upper surface of the connecting plate.

[0018] Furthermore, the outer surface of the connecting plate is covered with a buffer layer, and the upper buffer layer and the lower buffer layer are formed on the upper and lower surfaces respectively.

[0019] Furthermore, the material of the buffer layer is selected from one of polyurethane rubber, nitrile rubber, high tear-resistant silicone rubber, and neoprene rubber.

[0020] Furthermore, the circumferential and vertical buffer rings are made of one of the following materials: polyurethane rubber, nitrile rubber, high tear-resistant silicone rubber, and neoprene rubber.

[0021] The bridge and road expansion joint structure provided by this utility model has two angle steels installed in two mounting slots respectively, and two shock-absorbing strips respectively set corresponding to the two angle steels and clamped between the angle steels and the mounting slots. The shock-absorbing strips provide a buffering effect and also reduce noise. Screws are connected to the embedded parts, and the upper cap body clamps the washer with the beam body, ensuring the stability of the screw fixation. A circumferential buffer ring is sleeved on the rod body and its outer circumference matches the angle steel. The presence of the circumferential buffer ring allows the thermal expansion and contraction dimensions of the beam body or connecting plate to be adapted. The upper cap body fixes the connecting plate through the vertical buffer ring. The above structure has the advantages of simple structure, convenient maintenance and low noise. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the beam in the bridge and road expansion joint structure of the first embodiment of this utility model;

[0023] Figure 2 This is a schematic diagram of the bridge and road expansion joint structure of the first embodiment of this utility model;

[0024] Figure 3 This is a cross-sectional schematic diagram of the bridge and road expansion joint structure according to the first embodiment of this utility model;

[0025] Figure 4 yes Figure 3 A magnified view of a portion of the image;

[0026] Figure 5 This is a schematic diagram of the screw assembly in the bridge and road expansion joint structure according to the first embodiment of this utility model;

[0027] Figure 6 This is a schematic diagram of the bridge and road expansion joint structure according to the second embodiment of this utility model;

[0028] Figure 7 This is a schematic diagram of the filling strip in the bridge and road expansion joint structure according to the second embodiment of this utility model;

[0029] Figure 8 This is a cross-sectional schematic diagram of the bridge and road expansion joint structure according to the second embodiment of this utility model;

[0030] Figure 9 yes Figure 8 A magnified view of a local area. Detailed Implementation

[0031] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0032] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” “the,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, units, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connection or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0033] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0034] Reference Figures 1 to 9 In one embodiment of this utility model, a bridge and road expansion joint structure includes:

[0035] Two beams 100 are matched to form a gap. Each beam 100 has an installation groove 110 that extends through the width direction at its inner end along its length. Multiple embedded parts 120 are spaced apart at the bottom of the installation groove 110 along the width of the beam 100.

[0036] Two angle steels 200 are respectively installed in the two mounting slots 110;

[0037] Two shock-absorbing strips 300 are respectively set corresponding to two angle steels 200 and clamped between the angle steels 200 and the mounting groove 110;

[0038] A connecting plate 400 is supported between two angle steels 200. The connecting plate 400 includes a lower plate 410 and an upper plate 420 connected to the lower plate 410, and has a convex cross-section. The damping strip 300, the angle steels 200, and the lower plate 410 are respectively provided with a first through hole, a second through hole, and a third through hole corresponding to the embedded part 120.

[0039] Multiple screw assemblies 500 include screws 510, washers 520, circumferential buffer rings 530 and vertical buffer rings 540. The screw 510 includes a rod 511 and an upper cap 512 and a lower cap 513 spaced apart in the height direction of the rod 511. The screw 510 passes through the third through hole, the second through hole and the first through hole and connects to the embedded part 120. The washer 520 is sleeved on the rod 511 and located below the lower cap 513. The lower cap 513 and the beam 100 clamp the washer 520. The circumferential buffer ring 530 is sleeved on the rod 511 and its outer periphery matches the angle steel 200. The vertical buffer ring 540 is sleeved on the rod 511 and is clamped by the upper cap 512 and the lower plate 410.

[0040] In the existing technology, various related expansion joints have a certain degree of structural complexity, which is inconvenient in the production and installation process; at the same time, they generate a lot of noise during use.

[0041] The bridge and road expansion joint structure provided by this utility model involves two beams 100 that are butted together without contact, forming a gap. Each beam 100 has an installation groove 110 extending through its width at its inner end along its length. Multiple embedded parts 120 are spaced apart at the bottom of the installation groove 110 along the width of the beam 100. The embedded parts 120 can be steel structures, providing a foundation for the subsequent fixing of related components.

[0042] Two angle steels 200 are respectively installed in two mounting slots 110. The angular positions of the angle steels 200 and the angular positions of the mounting slots 110 are matched.

[0043] Two damping strips 300 are respectively positioned between two angle steels 200 and the mounting groove 110. The structure of the damping strips 300 is similar to that of the angle steels, thus allowing them to match the angle steels 200. The material of the damping strips 300 can be one of polyurethane rubber, nitrile rubber, high tear-resistant silicone rubber, and neoprene rubber. The damping strips 300 provide a cushioning effect and also reduce noise.

[0044] The connecting plate 400 is supported between two angle steels 200, thereby covering the gap. The connecting plate 400 includes a lower plate 410 and an upper plate 420 connected to the lower plate 410, and its cross-section is convex. The lower plate 410 and the upper plate 420 can be a connecting structure or an integral structure. The connecting plate 400 is preferably made of alloy steel. The damping strip 300, the angle steel 200, and the lower plate 410 are respectively provided with a first through hole, a second through hole, and a third through hole corresponding to the embedded part 120, providing a foundation for the subsequent installation of the screw assembly 500.

[0045] Multiple screw assemblies 500 include screws 510, washers 520, circumferential buffer rings 530, and vertical buffer rings 540. Screw 510 includes a shaft 511 and an upper cap 512 and a lower cap 513 spaced apart along the height of the shaft 511. Screw 510 passes through a third through hole, a second through hole, and a first through hole to connect to the embedded part 120, where it is fixed. Washer 520 is fitted onto the shaft 511 and located below the lower cap 513. The lower cap 513 and beam 100 clamp the washer 520, improving the stability of the screw 510. Circumferential buffer ring 530 is fitted onto the shaft 511 and its outer circumference matches the angle steel 200. The presence of circumferential buffer ring 530 allows for adaptation to the thermal expansion and contraction of the beam 100 or connecting plate 400. The wall thickness of circumferential buffer ring 530 can be between 1 and 2 cm to provide a cushioning effect. The vertical buffer ring 540 is sleeved on the rod body 511 and is clamped by the upper cap 512 and the lower plate 410. The upper cap 512 fixes the connecting plate 400 through the vertical buffer ring 540. The materials of the circumferential buffer ring 530 and the vertical buffer ring 540 are selected from polyurethane rubber, nitrile rubber, high tear-resistant silicone rubber and neoprene rubber.

[0046] In summary, two angle steels 200 are installed in two mounting slots 110 respectively, and two damping strips 300 are respectively set corresponding to the two angle steels 200 and clamped between the angle steels 200 and the mounting slots 110. The damping strips 300 provide a buffering effect and also reduce noise. The screws 510 are connected to the embedded parts 120, and the upper cap 512 clamps the washer 520 with the beam 100. The screws 510 fix the stability. The circumferential buffer ring 530 is sleeved on the rod 511 and its outer circumference matches the angle steel 200. Through the presence of the circumferential buffer ring 530, the thermal expansion and contraction dimensions of the beam 100 or the connecting plate 400 can be adapted. The upper cap 512 fixes the connecting plate 400 through the vertical buffer ring 540. The above structure has the advantages of simple structure, convenient maintenance and low noise.

[0047] In one embodiment, the rod 511 includes an upper rod and a lower rod connected to each other, the upper cap 512 is connected to the upper rod, and the lower cap 513 is connected to the lower rod.

[0048] In this embodiment, the rod 511 is divided into an upper rod and a lower rod. Therefore, during maintenance of the connecting plate 400, it is not necessary to disconnect the connection between the rod 511 and the embedded part 120, reducing the difficulty of maintenance. The connection between the upper rod and the lower rod can be a threaded connection, etc.

[0049] In one embodiment, the upper rod and the lower rod are connected by a thread.

[0050] In this embodiment, the connection between the upper rod and the lower rod is limited to a threaded connection, which is simple, reliable and convenient.

[0051] Reference Figures 6 to 9 In one embodiment, a filler strip 600 is also provided corresponding to the angle steel 200. The filler strip 600 is provided with a plurality of fourth through holes corresponding to the plurality of screws 510. The filler strip 600 connects the plurality of vertical buffer rings 540.

[0052] In this embodiment, two filler strips 600 are respectively provided for two angle steels 200. The filler strips 600 fill the gap between the connecting plate 400 and the angle steels 200, reducing the impact on the bridge road expansion joint structure when vehicles pass over it. The filler strips 600 must first avoid the screws 510 to allow for their installation; secondly, the filler strips 600 connect to the vertical buffer ring 540, thus securing the filler strips 600. The filler strips 600 can be made of various types of polymers, selected according to specific needs. The connection method between the filler strips 600 and the vertical buffer ring 540 can be bonding, or the filler strips 600 and the vertical buffer ring 540 can be an integral structure.

[0053] Reference Figures 6 to 9 In one embodiment, the filling strip 600 and the plurality of vertical buffer rings 540 are an integral structure.

[0054] In this embodiment, the filler strip 600 and multiple vertical buffer rings 540 are constrained into an integral structure, which reduces the difficulty of processing and installation.

[0055] In one embodiment, the lower surface of the connecting plate 400 is provided with a lower buffer layer.

[0056] In this embodiment, a lower buffer layer is provided on the lower surface of the connecting plate 400, thereby reducing the noise generated by the connecting plate 400 during impact from external vehicles and lowering the possibility of structural damage. The material of the lower buffer layer can be various types of high-strength polymers, such as polyurethane, and the specific thickness of the lower buffer layer is designed and used according to the actual situation.

[0057] In one embodiment, the upper surface of the connecting plate 400 is provided with an upper buffer layer.

[0058] In this embodiment, a buffer layer is provided on the upper surface of the connecting plate 400, thereby reducing the noise generated by the connecting plate 400 during impact from external vehicles and lowering the possibility of structural damage. The material of the upper buffer layer can be various types of high-strength polymers, such as polyurethane, and the specific thickness of the upper buffer layer is designed and used according to the actual situation.

[0059] In one embodiment, the outer surface of the connecting plate 400 is covered with a buffer layer, and the upper buffer layer and the lower buffer layer are formed on the upper and lower surfaces respectively.

[0060] In this embodiment, the entire outer periphery of the connecting plate 400 is covered with a buffer layer, providing excellent cushioning while also reducing processing difficulty to some extent. The material of the buffer layer can be various types of high-strength polymers, such as polyurethane, and the specific thickness of the buffer layer is designed and used according to the actual situation.

[0061] In one embodiment, the material of the buffer layer is selected from polyurethane rubber, nitrile rubber, high tear-resistant silicone rubber, and neoprene rubber.

[0062] In this embodiment, several material options with superior structural strength and weather resistance are provided.

[0063] In one embodiment, the circumferential buffer ring 530 and the vertical buffer ring 540 are made of one of polyurethane rubber, nitrile rubber, high tear-resistant silicone rubber, and neoprene rubber.

[0064] In this embodiment, several material options with superior structural strength and weather resistance are provided.

[0065] In summary, the bridge and road expansion joint structure provided by this utility model has two angle steels 200 installed in two mounting slots 110 respectively, and two shock-absorbing strips 300 respectively set corresponding to the two angle steels 200 and clamped between the angle steels 200 and the mounting slots 110. The shock-absorbing strips 300 provide a buffering effect and also play a role in noise reduction. The screws 510 are connected to the embedded parts 120, and the upper cap 512 clamps the washer 520 with the beam 100. The screws 510 fix the stability. The circumferential buffer ring 530 is sleeved on the rod 511 and its outer circumference matches the angle steel 200. Through the presence of the circumferential buffer ring 530, the thermal expansion and contraction dimensions of the beam 100 or the connecting plate 400 can be adapted. The upper cap 512 fixes the connecting plate 400 through the vertical buffer ring 540. The above structure has the advantages of simple structure, convenient maintenance and low noise.

[0066] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A bridge and road expansion joint structure, characterized in that, include: Two beams (100) are matched to form a gap. Each beam (100) has a through-width mounting groove (110) at its inner end. Multiple embedded parts (120) are spaced apart at the bottom of the mounting groove (110) on the width of the beam (100). Two angle steels (200) are respectively installed in the two mounting slots (110); Two shock-absorbing strips (300) are respectively set for two angle steels (200) and clamped between the angle steels (200) and the mounting groove (110); A connecting plate (400) is supported between two angle steels (200). The connecting plate (400) includes a lower plate (410) and an upper plate (420) connected to the lower plate (410) with a convex cross-section. The damping strip (300), the angle steel (200) and the lower plate (410) are respectively provided with a first through hole, a second through hole and a third through hole corresponding to the embedded part (120). A plurality of screw assemblies (500) include screws (510), washers (520), circumferential buffer rings (530), and vertical buffer rings (540). The screw (510) includes a shank (511) and an upper cap (512) and a lower cap (513) spaced apart along the height of the shank (511). The screw (510) passes through the third through hole, the second through hole, and the first through hole to connect to the embedded part (120). The washer (520) is fitted onto the rod (511) and located below the lower cap (513). The lower cap (513) and the beam (100) hold the washer (520). The circumferential buffer ring (530) is fitted onto the rod (511) and its outer periphery matches the angle steel (200). The vertical buffer ring (540) is fitted onto the rod (511) and is held by the upper cap (512) and the lower plate (410).

2. The bridge and road expansion joint structure according to claim 1, characterized in that, The rod (511) includes an upper rod and a lower rod connected to each other, the upper cap (512) is connected to the upper rod, and the lower cap (513) is connected to the lower rod.

3. The bridge and road expansion joint structure according to claim 2, characterized in that, The upper rod and the lower rod are connected by a thread.

4. The bridge and road expansion joint structure according to claim 1, characterized in that, A filler strip (600) is also provided corresponding to the angle steel (200). The filler strip (600) is provided with a plurality of fourth through holes corresponding to a plurality of screws (510). The filler strip (600) connects a plurality of vertical buffer rings (540).

5. The bridge and road expansion joint structure according to claim 4, characterized in that, The filling strip (600) and the plurality of vertical buffer rings (540) are an integral structure.

6. The bridge and road expansion joint structure according to claim 1, characterized in that, The lower surface of the connecting plate (400) is provided with a lower buffer layer.

7. The bridge and road expansion joint structure according to claim 6, characterized in that, The upper surface of the connecting plate (400) is provided with an upper buffer layer.

8. The bridge and road expansion joint structure according to claim 7, characterized in that, The connecting plate (400) is covered with a buffer layer, and the upper buffer layer and the lower buffer layer are formed on the upper and lower surfaces respectively.

9. The bridge and road expansion joint structure according to claim 8, characterized in that, The material of the buffer layer is selected from polyurethane rubber, nitrile rubber, high tear-resistant silicone rubber, and neoprene rubber.

10. The bridge and road expansion joint structure according to any one of claims 1 to 9, characterized in that, The materials of the circumferential buffer ring (530) and the vertical buffer ring (540) are selected from polyurethane rubber, nitrile rubber, high tear-resistant silicone rubber and neoprene rubber.

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