Connecting device for reducing slippage of bridge pier

Abstract

The utility model relates to the technical field of connecting devices, and provides a connecting device for reducing slippage of a bridge pier aiming at the situation that when a cofferdam structure is constructed near a bridge pier traditionally, the generated soil disturbance easily causes slippage of the bridge pier near the cofferdam structure, and the connecting device for reducing slippage of the bridge pier comprises two limiting rings, the two limiting rings are fixedly arranged on the peripheries of the adjacent bridge piers in a sleeving mode correspondingly, a plurality of connecting beams are further arranged between the two limiting rings, and the two ends of each connecting beam are connected to the opposite sides of the two limiting rings through main connecting pieces correspondingly. The cofferdam structure has the effect of limiting slippage of the pier close to the cofferdam structure in the cofferdam construction process.

Description

Technical Field

[0001] The present application relates to the field of connection devices, and in particular to a connection device for reducing the slippage of bridge piers. Background Art

[0002] During the construction of water conservancy projects, it is usually necessary to construct a cofferdam structure to limit the flow of water and soil into the construction area, thereby providing a dry and stable construction environment for subsequent construction areas.

[0003] In the related technology, due to engineering needs, the cofferdam structure needs to be constructed near the existing bridge piers. The construction process of the cofferdam structure will inevitably cause soil disturbance within a certain range. In areas with poor geological conditions such as low soil strength, soil disturbance can easily cause the bridge piers near the cofferdam structure to slip. Therefore, there is room for improvement. Utility Model Content

[0004] In order to reduce the slippage of the bridge pier due to soil disturbance when a cofferdam structure is constructed near the bridge pier, the present application provides a connection device for reducing the slippage of the bridge pier.

[0005] The present application provides a connection device for reducing the slippage of bridge piers, which adopts the following technical solution:

[0006] A connection device for reducing the slippage of bridge piers comprises two limit rings, wherein the two limit rings are respectively sleeved and fixed on the outer periphery of adjacent bridge piers, and a plurality of connecting beams are arranged between the two limit rings, and both ends of the connecting beams are respectively connected to the opposite sides of the two limit rings through main connecting parts.

[0007] By adopting the above technical solution, the connection limit of two adjacent piers is realized by utilizing the connection structure formed by two limiting rings and a number of connecting beams, thereby improving the connection integrity of the two adjacent piers and reducing the soil disturbance caused by the subsequent construction of the cofferdam structure in the area near the piers, which may cause the piers near the cofferdam structure to slip.

[0008] Preferably, the limiting ring is formed by splicing a plurality of arc-shaped boxes, and the adjacent ends of the adjacent arc-shaped boxes are connected by a secondary connecting piece.

[0009] By adopting the above technical solution, after several arc-shaped boxes are moved to the periphery of the bridge pier, the adjacent arc-shaped boxes are connected by auxiliary connecting parts, so that the limit ring can be fixed on the periphery of the bridge pier. When the limit ring is subsequently removed, the auxiliary connecting parts at the adjacent ends of the adjacent arc-shaped boxes are removed, and the limit ring can be removed from the periphery of the bridge pier, which facilitates the disassembly and assembly of the limit ring.

[0010] Preferably, the main connecting member includes a main connecting plate vertically connected to the end of the connecting beam, and a plurality of fastening bolts are arranged on the main connecting plate. The fastening bolts pass through the main connecting plate and the side wall of the arc-shaped box body and extend into the inner cavity of the arc-shaped box body. The tail end of the fastening bolt is threadedly connected with a fastening nut and the fastening nut is tightly pressed against the inner cavity wall of the arc-shaped box body.

[0011] By adopting the above technical solution, the end of the connecting beam and the limiting ring are tightly connected. At the same time, after the subsequent cofferdam structure construction is completed, the fastening bolts and fastening nuts are removed, and the connecting beam can be removed from between the two limiting rings, which is convenient for the disassembly and assembly of the connecting beam.

[0012] Preferably, flexible pads are provided on the concave sides of the arc-shaped box.

[0013] By adopting the above technical solution, on the one hand, when assembling the arc box, the impact of the arc box on the outer periphery of the bridge pier can be buffered, reducing the damage to the arc box and the bridge pier; on the other hand, after the subsequent limit ring is assembled and formed, it is beneficial to improve the friction between the inner periphery of the limit ring and the outer periphery of the bridge pier, thereby limiting the slippage of the limit ring.

[0014] Preferably, brackets are welded on opposite sides of the two limiting rings corresponding to the connecting beams, and the ends of both ends of the connecting beam are respectively overlapped on the brackets corresponding to the two limiting rings.

[0015] By adopting the above technical solution, on the one hand, when installing the connecting beam, the two ends of the connecting beam can be overlapped on the brackets of the two limiting rings respectively to realize temporary limiting of the connecting beam, so as to facilitate fixing the main connecting plate at the end of the connecting beam to the arc-shaped box body of the limiting ring through fastening bolts and fastening nuts. On the other hand, after the subsequent installation of the connecting beam is completed, the connecting beam can be auxiliary supported by the brackets on the two limiting rings, which is beneficial to improve the stress condition of the fastening bolts at the connection between the end of the connecting beam and the arc-shaped box body, so that the fastening bolts are not easily deformed and damaged.

[0016] Preferably, the auxiliary connecting member includes a plurality of connecting bolts arranged at an end adjacent to the arc-shaped box body, the connecting bolts penetrate the box wall at an end adjacent to the arc-shaped box body, and the tail ends of the connecting bolts are threadedly connected with connecting nuts.

[0017] By adopting the above technical solution, after the arc box is moved to the position corresponding to the periphery of the bridge pier, the adjacent ends of the arc box are connected by a number of connecting bolts and connecting nuts, so that the assembly and fixation of the limit ring can be completed, which makes it easier to set and fix the limit ring on the periphery of the bridge pier.

[0018] Preferably, a plurality of water-permeable holes are provided on the outer side of the arc-shaped box body.

[0019] By adopting the above technical solution, by opening a plurality of water-permeable holes on the arc-shaped box body, seawater can subsequently flow into the arc-shaped box body to maintain the pressure balance inside and outside the arc-shaped box body, thereby reducing the floating of the arc-shaped box body due to the buoyancy of seawater.

[0020] Preferably, the cavity walls on opposite sides of the inner cavity of the arc-shaped box body are tension-connected with cross bracing rods.

[0021] By adopting the above technical solution and arranging a plurality of transverse braces, it is beneficial to improve the overall strength of the arc-shaped box body through the plurality of transverse braces, and reduce the deformation of the arc-shaped box body after the subsequent limiting ring is subjected to force.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. After two limit rings are respectively installed on the outer periphery of adjacent piers, the two ends of a number of connecting beams are respectively connected to the opposite sides of the two limit rings through main connecting parts, so as to realize the connection limit of the two piers, which is beneficial to improve the connection integrity of the two adjacent piers and limit the subsequent soil disturbance caused by the construction of cofferdam structure near the piers, resulting in the slip of the piers adjacent to the cofferdam structure.

[0024] 2. Corbels are provided on the opposite sides of the two limiting rings and the two ends of the connecting beam are respectively overlapped on the corbels of the two limiting rings. When the connecting piece is subsequently fixed to the limiting ring through the main connecting piece, the supporting beam can be temporarily limited by the corbels, thereby facilitating the installation and fixation of the end of the connecting beam. At the same time, the two ends of the connecting beam are subsequently fixed to the two limiting rings respectively, and the connecting beam can be auxiliary supported by the corbels on the two limiting rings, which is beneficial to improve the stress condition of the fastening bolts at the connection between the connecting beam and the limiting ring.

[0025] 3. A number of water holes are opened on the outer periphery and bottom of the arc-shaped box, and subsequent seawater or river water can enter the inner cavity of the arc-shaped box through the water holes, which is beneficial to maintain the pressure balance inside and outside the arc-shaped box and reduce the subsequent upward displacement of the arc-shaped box due to buoyancy. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the connection device used to illustrate the embodiment of the present application.

[0027] Figure 2 yes Figure 1 Enlarged schematic diagram of part A in the middle.

[0028] Figure 3 It is a schematic diagram used to illustrate the connection relationship between adjacent arc-shaped boxes and auxiliary connecting members in an embodiment of the present application.

[0029] Description of reference numerals:

[0030] 1. Bridge pier; 10. Abutment; 2. Limiting ring; 21. Arc box; 210. Water-permeable hole; 211. Inspection port; 212. Corbel; 3. Connecting beam; 31. Main connecting plate; 32. Fastening bolt; 4. Connecting bolt; 41. Connecting nut. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] The present application embodiment discloses a connection device for reducing the slippage of a bridge pier, referring to Figure 1 and Figure 2 , including two limiting rings 2, the two limiting rings 2 are respectively mounted on two adjacent piers 1, the bottoms of the limiting rings 2 are overlapped on the pedestal 10 on the top of the pier 1, and a plurality of connecting beams 3 are arranged between the two limiting rings 2, and both ends of the connecting beams 3 are respectively connected to the opposite sides of the adjacent limiting rings 2 through main connecting parts.

[0033] By utilizing two limiting rings 2 and a number of connecting beams 3 between the two limiting rings 2, the limiting fixation of two adjacent bridge piers 1 is achieved, thereby improving the connection integrity between the two bridge piers 1 and reducing the possibility of slippage of the bridge pier 1 adjacent to the cofferdam structure due to soil disturbance when a cofferdam structure is subsequently constructed near the bridge pier 1.

[0034] The limiting ring 2 is assembled from two arc-shaped boxes 21, and the two arc-shaped boxes 21 are connected at one end by a secondary connector. The limiting ring 2 is sleeved on the outer periphery of the pier 1. In this embodiment, the arc-shaped box 21 is a steel sleeve box. The inner cavity of the arc-shaped box 21 is welded with a cross brace relative to the cavity wall. Specifically, the cross brace can be a steel bar or a square tube. The arrangement of the cross brace is conducive to further improving the overall strength of the arc-shaped box 21.

[0035] A plurality of water-permeable holes 210 are provided on the outside and the bottom of the arc-shaped box body 21. When the arc-shaped box body 21 is subsequently lowered or the tide rises, seawater can enter the arc-shaped box body 21 through the water-permeable holes 210, which is beneficial to maintaining the pressure balance inside and outside the arc-shaped box body 21, and reducing the difficulty in lowering the arc-shaped box body 21 due to the buoyancy of seawater, or the upward displacement caused by the buoyancy of seawater after the arc-shaped box body 21 is subsequently installed and fixed.

[0036] Flexible pads are connected to the concave sides of the arc-shaped box body 21. In the present embodiment, the flexible pads are rubber pads. Through the provision of the flexible pads, on the one hand, when the arc-shaped box body 21 is spliced ​​in the early stage, the impact of the arc-shaped box body 21 on the bridge pier 1 can be cushioned by the flexible pads, so that the bridge pier 1 and the arc-shaped box body 21 are not easily damaged. On the other hand, after the two arc-shaped boxes 21 are subsequently assembled to form the limit ring 2, the friction between the inner periphery of the limit ring 2 and the outer periphery of the bridge pier 1 can be increased by the flexible pads on the concave side of the arc-shaped box body 21, so that the limit ring 2 is not easy to slip.

[0037] Reference Figure 1 and Figure 3 The secondary connecting parts include a plurality of connecting bolts 4 arranged at the proximal end of the adjacent arc-shaped box bodies 21, and the plurality of connecting bolts 4 are all penetrated through the box wall at the proximal end of the adjacent arc-shaped box bodies 21; the tail ends of the connecting bolts 4 are threadedly connected with connecting nuts 41, and the connecting nuts 41 are pressed against the inner cavity wall of the arc-shaped box body 21 through gaskets, so as to realize the fastening connection of the adjacent arc-shaped box bodies 21, and facilitate the assembly and forming of the limit ring 2.

[0038] Reference Figure 1 and Figure 2 A maintenance opening 211 is provided on the top of the arc-shaped box body 21, and a ladder is welded to the inner cavity of the arc-shaped box body 21, and the top of the ladder extends to the bottom of the maintenance opening 211, so that subsequent construction personnel can enter and exit the arc-shaped box body 21 through the maintenance opening 211 and the ladder, so as to facilitate the connection of adjacent arc-shaped boxes 21 through connecting bolts 4 and connecting nuts 41.

[0039] In this embodiment, the connecting beam 3 is an I-beam. The main connecting member includes a main connecting plate 31 vertically welded at the end of the connecting beam 3, the main connecting plate 31 is abutted against the outer side of the arc box 21 on the limiting ring 2, and a plurality of fastening bolts 32 are arranged on the main connecting plate 31, the fastening bolts 32 are all penetrated by the main connecting plate 31 and the outer side of the arc box 21, and the tail ends of the fastening bolts 32 extend into the corresponding inner cavity of the arc box 21, and the tail ends of the fastening bolts 32 are threadedly connected with fastening nuts, which are pressed against the inner cavity wall of the arc box 21 through gaskets to achieve the fastening connection between the end of the connecting beam 3 and the limiting ring 2, so that the connecting device can better limit and fix the two adjacent piers 1. At the same time, the two ends of the connecting beam 3 can be detachably installed on the corresponding limiting rings 2. After the subsequent cofferdam structure is completed, the connecting bolts 4 and the connecting nuts 41 between the main connecting plate 31 and the arc box 21 can be removed, so that the connecting beam 3 can be removed from between the two limiting rings 2, which is convenient for the disassembly and assembly of the connecting beam 3.

[0040] Several connecting beams 3 are provided with brackets 212 corresponding to the opposite sides of the two limiting rings 2. The brackets 212 are welded and fixed to the outer side of the arc-shaped box body 21 of the limiting rings 2, and the two ends of the connecting beam 3 are respectively overlapped on the corresponding brackets 212 of the two limiting rings 2. Through the above arrangement, on the one hand, when installing and fixing the connecting beam 3, after overlapping the two ends of the connecting beam 3 on the corresponding brackets 212, temporary limiting of the connecting beam 3 can be achieved, which is convenient for connecting the main connecting plate 31 at the end of the connecting beam 3 to the corresponding arc-shaped box body 21 through the fastening bolts 32 and the fastening nuts. On the other hand, after the subsequent connecting beam 3 is installed and fixed, it can be auxiliary supported by the brackets 212 on the two limiting rings 2, which is beneficial to improve the stress condition of the fastening bolts 32 at the end of the connecting beam 3 and reduce the deformation and damage of the connecting bolts 4.

[0041] The implementation principle of the embodiment of the present application is as follows: after the two arc-shaped boxes 21 are moved to the outer periphery of the corresponding pier 1 and the bottoms thereof are overlapped on the pedestal 10 of the pier 1, the adjacent ends of the arc-shaped boxes 21 are connected by connecting bolts 4 and connecting nuts 41, so as to realize that the limit ring 2 is sleeved and fixed on the outer periphery of the corresponding pier 1; the connecting beam 3 is hoisted between the two limit rings 2 by floating crane, and the two ends of the connecting beam 3 are overlapped on the corresponding corbels 212 of the two limit rings 2 respectively, and then the main connecting plate 31 at the end of the connecting beam 3 is fixed to the outer side of the arc-shaped box 21 of the limit ring 2 by fastening bolts 32 and fastening nuts, and the connecting device formed by the two limit rings 2 and the several connecting beams 3 between the two limit rings 2 is used to limit and fix the two adjacent piers 1, so as to reduce the situation that the piers 1 near the cofferdam structure slip due to soil disturbance during the subsequent cofferdam structure construction.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A connection device for reducing the slippage of a bridge pier, characterized in that: It comprises two limiting rings (2), the two limiting rings (2) are respectively sleeved and fixed on the outer circumference of adjacent bridge piers (1), a plurality of connecting beams (3) are also arranged between the two limiting rings (2), and both ends of the connecting beams (3) are respectively connected to the opposite sides of the two limiting rings (2) through main connecting parts.

2. A connection device for reducing pier slippage according to claim 1, characterized in that: The limiting ring (2) is formed by splicing a plurality of arc-shaped boxes (21), and the adjacent ends of the adjacent arc-shaped boxes (21) are connected via a secondary connecting piece.

3. The connection device for reducing pier slippage according to claim 2, characterized in that: The main connecting member comprises a main connecting plate (31) vertically connected to the end of the connecting beam (3), and a plurality of fastening bolts (32) are arranged on the main connecting plate (31). The fastening bolts (32) penetrate the main connecting plate (31) and the side wall of the arc-shaped box body (21) and extend into the inner cavity of the arc-shaped box body (21). The tail end of the fastening bolt (32) is threadedly connected with a fastening nut, and the fastening nut is tightly pressed against the inner cavity wall of the arc-shaped box body (21).

4. The connection device for reducing pier slippage according to claim 2, characterized in that: Flexible pads are provided on the concave sides of the arc-shaped box body (21).

5. The connection device for reducing pier slippage according to claim 3, characterized in that: The connecting beam (3) is welded with a bracket (212) on one side opposite to the two limiting rings (2), and the ends of both ends of the connecting beam (3) are respectively overlapped on the brackets (212) corresponding to the two limiting rings (2).

6. The connection device for reducing pier slippage according to claim 2, characterized in that: The secondary connecting member comprises a plurality of connecting bolts (4) arranged at an end adjacent to the arc-shaped box body (21), the connecting bolts (4) passing through the box wall at an end adjacent to the arc-shaped box body (21), and the tail ends of the connecting bolts (4) are all threadedly connected with connecting nuts (41).

7. The connection device for reducing pier slippage according to claim 6, characterized in that: A plurality of water-permeable holes (210) are provided on the outer side of the arc-shaped box body (21).

8. The connection device for reducing pier slippage according to claim 7, characterized in that: The cavity walls on opposite sides of the inner cavity of the arc-shaped box body (21) are both connected in tension with transverse bracing rods.

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