Anchoring device for viaduct expansion joint

Abstract

According to the anchoring device for the expansion joint of the viaduct, the whole steel plate structure is adopted to replace a traditional bent steel bar ring, and the whole anchoring device serves as a whole and then is connected with the toothed plate of the expansion joint. According to the expansion joint anchoring device, the load borne by the whole expansion joint can be more evenly distributed on the anchoring device and transmitted to the whole beam body, the service life of the expansion joint is prolonged, the vibration sense generated when vehicles pass by is reduced, and the expansion joint anchoring device comprises an anchoring assembly and an anchoring supporting plate matched with the anchoring assembly; the anchoring assembly is composed of an anchoring plate and an anchoring connecting plate. The anchoring supporting plate is horizontally arranged at the upper end of the anchoring plate; the anchoring connecting plates are arranged on the front end face of the anchoring plate in a staggered mode. And a reinforcing rib plate is fixedly arranged on the anchoring connecting plate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge engineering technical field, concretely relates to a kind of anchoring device for overhead bridge expansion joint. BACKGROUND

[0002] In bridge building structure, since bridge deck exists certain deformation, thus bridge expansion joint is needed as connecting device to connect two bridge girder, and is used to bear the load of passing vehicle and the displacement between two girders.

[0003] The existing expansion joint mostly uses special-shaped steel as anchoring plate, then welds reinforcing bar on anchoring plate, to be used as anchoring structure to fix the tooth plate of expansion joint and bridge girder, although this structure is simple, but the problem exposed for a long time is more and more, since the simple welding of reinforcing bar makes the load borne by each part of entire expansion joint different, simultaneously, since the connecting place of pre-buried reinforcing bar 9 is prone to aging and de-welding, it accelerates the damage of expansion joint structure, and the surrounding concrete is also more prone to cracking.

[0004] The anchoring structure fixed simultaneously makes that anchoring device can be mass digitized processing production, improves process, and also improves the structure precision of entire anchoring device, effectively improves the service life and shock of bridge expansion joint. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of anchoring device for overhead bridge expansion joint, uses integral steel plate to replace traditional bent reinforcing ring, and the entire anchoring device is connected with the tooth plate of expansion joint to make that the load borne by entire expansion joint can be more evenly distributed in entire anchoring device and then transmitted to entire girder, prolongs the service life of expansion joint, and also reduces the shock generated when vehicle passes.

[0006] To achieve the above purpose, the utility model provides a kind of anchoring device for overhead bridge expansion joint, including anchoring assembly and the anchoring support plate matched with anchoring assembly;

[0007] The anchoring assembly is composed of anchoring plate and anchoring connecting plate;

[0008] The anchoring support plate is horizontally arranged at the upper end of anchoring plate;

[0009] The anchoring connecting plate is mispositioned and arranged at the front end face of anchoring plate;

[0010] The reinforcing rib plate is fixedly arranged on the anchoring connecting plate.

[0011] Further, the anchoring assembly contains multiple, and is equidistantly arranged along the length direction of anchoring support plate.

[0012] Further, a center inner hole is arranged in the center of the anchoring connecting plate.

[0013] Further, two fixed connecting blocks are arranged at the lower end of the center inner hole.

[0014] The side of the fixed connecting block away from the anchoring plate is a circular arc surface.

[0015] Further, the reinforcing rib plate comprises a first reinforcing plate and a second reinforcing plate, and the first reinforcing plate and the second reinforcing plate are both arranged at the front end surface of the anchoring connecting plate.

[0016] The first reinforcing plate is arranged at the upper end of the anchoring connecting plate.

[0017] The second reinforcing plate is arranged at the lower end of the center inner hole, and the upper end surface of the second reinforcing plate is flush with the lower end of the center inner hole.

[0018] Further, one positioning groove is arranged at the front end surface and the rear end surface of the anchoring connecting plate.

[0019] The anchoring device of the expansion joint of the viaduct provided by the utility model adopts an integrated anchoring structure, so that the anchoring device can be formed in batches and welded and assembled, the phenomenon of welding separation generated by the traditional anchoring structure is effectively reduced, meanwhile, the overall structure can better disperse the road load borne by the tooth plate, the service life of the expansion joint is further prolonged, and the vertical vibration of the expansion joint caused by the passing vehicles is reduced.

[0020] The utility model will be described in detail in combination with the drawings and embodiments. DRAWINGS

[0021] Figure 1 It is the structure schematic diagram of the utility model.

[0022] Figure 2 It is the structure schematic diagram of the anchoring connecting plate.

[0023] Figure 3 It is the use schematic diagram of the utility model.

[0024] Figure 4 It is the installation schematic diagram of the reinforcing steel bar fastening net.

[0025] The reference signs are explained as follows: 1, anchoring assembly; 2, anchoring support plate; 3, anchoring plate; 4, anchoring connecting plate; 41, center inner hole; 5, reinforcing rib plate; 51, first reinforcing plate; 52, second reinforcing plate; 6, fixed connecting block; 7, positioning groove; 8, reinforcing steel bar fastening net; 9, pre-buried reinforcing steel bar; 10, transverse reinforcing steel bar. CONCRETE EMBODIMENT

[0026] In order to further illustrate the technical means and effects taken by the utility model to achieve the predetermined purpose, the specific implementation, structural features and effects of the utility model will be described in detail below in combination with the drawings and examples.

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "alignment", "overlap", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0029] The terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features; in the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0030] Example 1

[0031] The embodiment provides a kind of anchoring device for overhead bridge expansion joint as shown in Figures 1-4 The anchoring device is connected with the expansion joint tooth plate at the upper end finally; Anchoring assembly 1 is connected with anchoring support plate 2 at the upper end, and anchoring support plate 2 is connected with anchoring assembly 1;

[0032] Anchoring assembly 1 is composed of anchoring plate 3 and anchoring connecting plate 4, anchoring plate 3 is used as the basic structure of anchoring assembly 1 to weld anchoring connecting plate 4, and is welded with anchoring support plate 2 at the upper end, anchoring connecting plate 4 is connected together with the embedded steel bar 9 of beam body, the embedded steel bar 9 of expansion joint anchoring area and expansion joint whole, so that the whole expansion joint is finally connected with bridge body;

[0033] The anchor support plate 2 is horizontally arranged at the upper end of the anchor plate 3 and welded to each anchor plate 3. The length of the anchor support plate 2 is the same as that of the tooth plate. The anchor support plate 2 supports the tooth plate and evenly transfers the road load on the tooth plate to the anchor assembly 1. Compared with the traditional anchor structure, this structure makes the load on the entire anchor device more uniform, reduces the deformation of individual steel bars due to excessive force, and effectively extends the service life of the entire expansion joint.

[0034] The anchor connecting plate 4 is staggeredly arranged on the front end surface of the anchor plate 3, with the upper end of the anchor connecting plate 4 approximately located in the middle of the anchor plate 3, and the left end is also located in the middle of the anchor plate 3, so that while the anchor connecting plate 4 maximizes the contact area with the anchor plate 3, it also leaves a residual volume so that there is enough space for pre-embedded steel bars 9 or prestressed structures in subsequent construction. Compared with the structure of the traditional steel bar ring, the overall anchor connecting plate 4 has a better load-bearing and unloading capacity, and also avoids the phenomenon of direct de-welding between the steel bar ring and the anchor plate 3;

[0035] Reinforcement ribs 5 are fixedly provided on the anchor connecting plate 4. Since the plate structure may bend when subjected to long-term stress, the anchor connecting plate 4 is made of steel and has a wider thickness. In order to further avoid damage and deformation of the anchor connecting plate 4, reinforcement ribs 5 are welded. The reinforcement ribs 5 support the horizontal shape of the anchor connecting plate 4, effectively improving the overall structure of the anchor connecting plate 4.

[0036] Further, such as Figure 1 As shown, the anchoring components 1 include multiple components, which are evenly spaced along the length direction of the anchoring support plate 2. For different bridge deck widths, the corresponding number of anchoring components 1 can be set, and they can be welded and assembled with the anchoring support plate 2 according to the length requirements before leaving the factory.

[0037] Further, such as Figure 2 As shown, the anchor connecting plate 4 is a U-shaped steel plate with a central inner hole 41 in its center. The opening of the central inner hole 41 can effectively reduce the weight of the entire anchoring device. At the same time, the central area of ​​the central inner hole 41 is used to pre-embed cross-bars 10 or prestressed steel bars.

[0038] Furthermore, two fixed connection blocks 6 are provided on the lower end surface of the central inner hole 41. In the traditional construction process, each group of cross-rebars 10 is directly placed in the steel bar ring without a fixed position. At the same time, due to problems on the construction site, the cross-rebars 10 are often placed obliquely in the steel bar ring. By providing the fixed connection blocks 6, the cross-rebars 10 are positioned to limit the position, and the construction workers can also quickly pre-embed the cross-rebars 10, which not only improves the construction process but also improves the convenience of on-site construction.

[0039] The fixed connecting block 6 is a circular arc surface away from one side of the anchoring plate 3, and the fixed connecting block 6 is provided with a circular arc surface for further close contact with the transverse steel bar 10, and more welding points are provided for the transverse steel bar 10. For the traditional disadvantages of expansion joints: welding off, more welding points improve the overall reliability of the anchoring device, and reduce the instability of the overall structure of the expansion joint caused by the welding off of a certain point.

[0040] Further, as shown in Figure 2 The reinforcing rib plate 5 includes a first reinforcing plate 51 and a second reinforcing plate 52, both of which are located at the front end face of the anchoring connecting plate 4, and the front end face of the anchoring connecting plate 4 has a larger area for installing the reinforcing rib plate 5;

[0041] The first reinforcing plate 51 is located at the upper end of the anchoring connecting plate 4 to prevent deformation of the upper part of the anchoring connecting plate 4;

[0042] The second reinforcing plate 52 is used to prevent deformation of the lower part of the anchoring connecting plate 4, and the second reinforcing plate 52 is located at the lower end of the central inner hole 41, and the upper end face of the second reinforcing plate 52 is flush with the lower end of the central inner hole 41, so that the transverse steel bar 10 can be placed more stably in the central inner hole 41 of the anchoring connecting plate 4, and displacement is less likely to occur during welding.

[0043] Further, as shown in Figure 2 And Figure 4 The front and rear end faces of the anchoring connecting plate 4 are also provided with a positioning groove 7, and the two positioning grooves 7 are located at the upper end of the anchoring connecting plate 4 and are symmetrically arranged. The positioning groove 7 is used to install the steel reinforcement net 8 after the entire anchoring device is installed, and the steel reinforcement net 8 is installed between the two anchoring connecting plates 4 to prevent cracking of the concrete after it is cured.

[0044] In use: the anchoring plate 3 is welded with the anchoring connecting plate 4 to form the anchoring assembly 1, and the anchoring assembly 1 is arranged at equal intervals. The anchoring support plate 2 is arranged horizontally at the upper end of the anchoring assembly 1, and the anchoring support plate 2 is welded with the anchoring assembly 1 to form the entire anchoring device;

[0045] In the construction site, the anchoring device is made in advance according to the needs of the site, and the anchoring connecting plate 4 is placed next to the embedded steel bar 9 protruding from the beam body. Due to the overall structure of the anchoring device, the laying can be completed at one time, and due to the symmetrical and identical structure, the construction technology on site is effectively improved;

[0046] After the anchoring devices on both sides are laid, the cross reinforcement 10 is placed on the fixed connecting block 6 on the central hole 41, and the cross reinforcement 10 is tightly welded with the arc surface of the fixed connecting block 6 after being ensured to be tightly attached to the arc surface of the fixed connecting block 6, and thus the connection of the anchoring device and the bridge body is completed, and the subsequent concrete pouring work can be performed.

[0047] The above is a further detailed description of the utility model in combination with specific preferred embodiments, and the specific implementation of the utility model cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, a number of simple deductions or substitutions can be made without departing from the concept of the utility model, and all of them should be regarded as belonging to the protection scope of the utility model.

Claims

1. An anchoring device for a high level bridge expansion joint, characterised in that: The application relates to an anchoring assembly (1) and an anchoring support plate (2) matched with the anchoring assembly (1). The anchoring assembly (1) is composed of an anchoring plate (3) and an anchoring connecting plate (4); The anchoring support plate (2) is horizontally arranged at the upper end of the anchoring plate (3); The anchoring connecting plate (4) is arranged at the front end surface of the anchoring plate (3) in a staggered mode; The anchoring connecting plate (4) is fixedly provided with a reinforcing rib plate (5).

2. An anchoring device for a high level bridge expansion joint as claimed in claim 1, wherein: The anchoring assembly (1) comprises a plurality of anchoring assemblies, and the anchoring assemblies are arranged at equal intervals along the length direction of the anchoring support plate (2).

3. An anchoring device for a high level bridge expansion joint as claimed in claim 1, wherein: A central inner hole (41) is arranged at the center of the anchoring connecting plate (4).

4. An anchoring device for a high level bridge expansion joint as claimed in claim 3, wherein: Two fixed connecting blocks (6) are arranged at the lower end of the central inner hole (41). The side, away from the anchoring plate (3), of the fixed connecting block (6) is a circular arc surface.

5. An anchoring device for a high level bridge expansion joint as claimed in claim 4, wherein: The reinforcing rib plate (5) comprises a first reinforcing plate (51) and a second reinforcing plate (52), and the first reinforcing plate (51) and the second reinforcing plate (52) are both arranged at the front end surface of the anchoring connecting plate (4). The first reinforcing plate (51) is arranged at the upper end of the anchoring connecting plate (4). The second reinforcing plate (52) is arranged at the lower end of the central inner hole (41), and the upper end surface of the second reinforcing plate (52) is flush with the lower end of the central inner hole (41).

6. An anchoring device for a high level bridge expansion joint as claimed in claim 5 wherein: A positioning groove (7) is arranged at each of the front and rear end surfaces of the anchoring connecting plate (4).

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