Combined pier

Abstract

The utility model provides a combined pier. The combined pier comprises a pre-buried base, an inner cylinder and a plurality of outer cylinders, the inner cylinder is vertically arranged at the top of the embedded base, a filling cavity is formed in the inner cylinder, and a filling layer is arranged in the filling cavity; the inner cylinder is sleeved with the multiple outer cylinders in sequence from top to bottom, the end faces of every two adjacent outer cylinders abut against each other, the axes of the outer cylinders and the axis of the inner cylinder are overlapped, a pouring cavity is formed between the inner cylinder and the multiple outer cylinders, and concrete is arranged in the pouring cavity. According to the combined type bridge pier, the embedded base is arranged, a horizontal installation face is provided through the embedded base, the outer barrel and the inner barrel can be conveniently positioned and installed, and the forming quality of the bridge pier is guaranteed; concrete is poured between the inner cylinder and the outer cylinder to form the concrete layer, the filling layer is arranged in the inner cylinder, the filling layer and the concrete layer jointly cooperate to support the bridge, the filling layer does not need to wait for concrete solidification, the construction time is shortened, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge structures, and in particular relates to a combined bridge pier. Background Art

[0002] Most cast-in-place bridge support construction uses a steel pipe column truss support system, which uses a whole steel pipe to stand on the pedestal and pour concrete into the steel pipe to form a temporary bridge pier. When the concrete solidifies, the steel pipe is removed to complete the temporary bridge pier construction. The bridge is supported by a concrete temporary bridge pier structure.

[0003] However, temporary concrete piers are positioned and shaped by steel pipes. Due to the influence of the terrain, it is difficult to position the steel pipes and keep them vertical. As a result, the quality of the poured temporary piers cannot be guaranteed, which increases the risk of using the piers. At the same time, after the steel pipes are cut off, they become multiple pieces of waste and cannot be reused, which increases the manufacturing cost. Utility Model Content

[0004] The embodiment of the utility model provides a combined bridge pier, aiming to solve the technical problems in the prior art that the difficulty in positioning the steel tube leads to low quality of the cast bridge pier, affecting its use, and the removal of the steel tube leads to high costs.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a combined bridge pier, including:

[0006] Embedded base;

[0007] An inner cylinder is erected on the top of the embedded base, a filling cavity is formed inside the inner cylinder, and a filling layer is arranged in the filling cavity; and

[0008] A plurality of outer cylinders are sequentially sleeved on the outer circumference of the inner cylinder from top to bottom, and the end faces of two adjacent outer cylinders abut against each other, the outer cylinder at the bottom is connected to the embedded base, the axis of the outer cylinder overlaps the axis of the inner cylinder, and a casting cavity is formed between the inner cylinder and the plurality of outer cylinders, and concrete is arranged in the casting cavity.

[0009] In a possible implementation, the bridge pier further includes a connection assembly, and the connection assembly includes:

[0010] Two connecting frames are symmetrically arranged on both sides of the outer cylinder at the bottom, and the two connecting frames are detachably connected to the embedded base respectively;

[0011] Two pads are respectively arranged on opposite sides of the corresponding connecting frame, and the two pads are respectively in contact with the outer cylinder; and

[0012] Two connecting rods are arranged on both sides of the outer cylinder, two ends of the connecting rods are respectively connected to the two connecting frames, and the axes of the connecting rods are perpendicular to the long axes of the connecting frames.

[0013] In a possible implementation, the connection assembly further includes a support member, wherein the support member has a horizontal plate and a vertical plate vertically connected to each other, the horizontal plate is connected to the top of the connection frame, and the vertical plate is connected to the outer cylinder.

[0014] In a possible implementation, a first mesh plate and a second mesh plate perpendicular to each other are provided in the inner tube, the side edges of the first mesh plate and the side edges of the second mesh plate are respectively abutted against the inner wall of the inner tube, and the plate surfaces of the first mesh plate and the second mesh plate are parallel to the up and down directions.

[0015] In a possible implementation, the filling layer includes evenly mixed crushed stone and sand.

[0016] In a possible implementation, a reinforcing protrusion extending upward is provided on the top of the inner wall of the outer tube, a reinforcing groove is provided on the bottom of the inner wall of the outer tube, and the reinforcing protrusion is plug-fitted with the adjacent reinforcing groove of the outer tube.

[0017] In a possible implementation manner, an elastic sealing layer is provided between two adjacent outer cylinders.

[0018] In a possible implementation, a rigid sealing ring is provided between two adjacent outer cylinders, a first mounting ring groove is provided at the top of the sealing ring, and a second mounting ring groove is provided at the bottom of the sealing ring, and the first mounting ring groove and the second mounting ring groove are respectively plugged into and matched with the adjacent outer cylinders.

[0019] In a possible implementation, the embedded base is connected to a first reinforcing rib and a second reinforcing rib extending upward, the top of the first reinforcing rib extends into the casting cavity, and the top of the second reinforcing rib extends into the filling cavity.

[0020] In a possible implementation, a mounting groove is provided on the upper portion of the embedded base, and the bottom of the inner tube located at the bottom end is plug-fitted into the mounting groove.

[0021] Compared with the prior art, the combined pier provided by the utility model is provided with an embedded base, which provides a horizontal installation surface, facilitates the positioning and installation of the outer tube and the inner tube, and ensures the molding quality of the pier; concrete is poured between the inner tube and the outer tube to form a concrete layer, and a filling layer is arranged inside the inner tube, and the filling layer and the concrete layer cooperate to support the bridge, which saves the cost of concrete use. At the same time, the filling layer does not need to wait for the concrete to solidify, shortens the construction time, and speeds up the construction efficiency; the arrangement of multiple outer tubes allows the outer tubes to be dismantled in sequence after the concrete layer is formed, without the need for cutting and crushing, and the outer tubes can be reused, saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 This is a schematic diagram of the main structure of the combined bridge pier provided in the first embodiment of the utility model;

[0024] Figure 2 This is a cross-sectional view of the combined bridge pier used in the first embodiment of the utility model;

[0025] Figure 3 This is a schematic diagram of the assembly of the reinforcing protrusion and the outer cylinder used in the first embodiment of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the embedded base used in the first embodiment of the utility model;

[0027] Figure 5 A top view of the outer cylinder used in the second embodiment of the present utility model;

[0028] Figure 6 This is an assembly cross-sectional view of the sealing ring and the outer cylinder used in the third embodiment of the utility model.

[0029] Description of reference numerals:

[0030] 1. Embedded base; 11. First reinforcing rib; 12. Second reinforcing rib; 13. Mounting groove;

[0031] 2. Inner cylinder; 20. Filling cavity; 21. Filling layer; 22. First mesh plate; 23. Second mesh plate;

[0032] 3. Outer tube; 30. Casting cavity; 31. Concrete layer; 32. Reinforcement protrusion; 33. Reinforcement groove; 34. Outer tube body; 35. U-shaped plate;

[0033] 4. Connecting assembly; 41. Connecting frame; 42. Pad; 43. Connecting rod; 44. Support member;

[0034] 5. Sealing layer;

[0035] 6. Sealing ring; 61. First mounting ring groove; 62. Second mounting ring groove. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] It should be noted that the terms "length", "width", "height", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0038] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0040] Please also read Figures 1 to 6Now, the combined bridge pier provided by the utility model is described. The combined bridge pier includes a pre-embedded base 1, an inner tube 2 and a plurality of outer tubes 3. The inner tube 2 is erected on the top of the pre-embedded base 1, and a filling cavity 20 is formed inside the inner tube 2, and a filling layer 21 is arranged in the filling cavity 20; a plurality of outer tubes 3 are sequentially sleeved on the outer circumference of the inner tube 2 from top to bottom, and the end faces of two adjacent outer tubes 3 abut against each other, the outer tube 3 at the bottom is connected to the pre-embedded base 1, the axis of the outer tube 3 overlaps with the axis of the inner tube 2, and a casting cavity 30 is formed between the inner tube 2 and the plurality of outer tubes 3, and concrete is arranged in the casting cavity 30.

[0041] It should be noted that the embedded base 1 is made of cast concrete.

[0042] During specific implementation, the outer cylinder 3 at the bottom is fixed to the embedded base 1 by welding, or can be inserted into the embedded base 1 during the molding process of the embedded base 1.

[0043] It should be noted that after the concrete is formed, a concrete layer 31 is formed and the outer cylinder 3 is removed for easy reuse.

[0044] It should be noted that both the outer cylinder 3 and the inner cylinder 2 are made of steel cylinders, and the outer cylinder 3 is a circular steel cylinder formed by two semicircular wing plates.

[0045] In specific implementation, the temporary bridge pier can be completely removed after the bridge construction is completed. At this time, since the amount of concrete layer 31 is small compared with the existing concrete temporary bridge piers, the removal difficulty is low and the removal efficiency is high.

[0046] In specific implementation, adjacent outer cylinders 3 can be fixed by welding, or connected by a clamp.

[0047] As an implementation manner of the outer cylinder 3 , the outer cylinder 3 is a cylinder, which is coaxially sleeved on the outer circumference of the inner cylinder 2 .

[0048] As another embodiment of the outer cylinder 3, see Figure 5 The outer cylinder 3 includes an outer cylinder body 34 and three U-shaped plates 35. The three U-shaped plates 35 are arranged around the axis of the outer cylinder body 34, and the inner cavity of the U-shaped plate 35 is connected to the inner cavity of the outer cylinder body 34. The formed concrete layer is filled in the inner cavity of the U-shaped plate 35 and the inner cavity of the outer cylinder body 34, and the formed concrete layer has a stable structure and good bending strength.

[0049] Compared with the prior art, the combined pier provided in the present embodiment is provided with an embedded base 1. The embedded base 1 provides a horizontal installation surface, which is convenient for positioning and installing the outer tube 3 and the inner tube 2, thereby ensuring the construction quality of the pier. Concrete is poured between the inner tube 2 and the outer tube 3 to form a concrete layer 31. A filling layer 21 is arranged inside the inner tube 2. The filling layer 21 and the concrete layer 31 cooperate to support the bridge, thereby saving the cost of concrete. At the same time, the filling layer 21 does not need to wait for the concrete to solidify, thereby shortening the construction time and accelerating the construction efficiency. The arrangement of multiple outer tubes 3 allows the outer tubes 3 to be dismantled in sequence after the concrete layer 31 is formed, without the need for cutting and crushing. The outer tubes 3 can be reused, thereby saving costs.

[0050] In some embodiments, see Figure 1 and Figure 4 The pier also includes a connection assembly 4, which includes two connection frames 41, two pads 42 and two connection rods 43. The two connection frames 41 are symmetrically arranged on both sides of the outer tube 3 at the bottom, and the two connection frames 41 are detachably connected to the embedded base 1 respectively; the two pads 42 are respectively arranged on the opposite sides of the corresponding connection frames 41, and the two pads 42 are respectively abutted against the outer tube 3; the two connection rods 43 are arranged on both sides of the outer tube 3, and the two ends of the connection rods 43 are respectively connected to the two connection frames 41, and the axis of the connection rod 43 is perpendicular to the long axis of the connection frame 41. The two connection rods 43 and the two connection frames 41 enclose a rectangular positioning space, and the outer tube 3 is arranged in the rectangular positioning space.

[0051] In specific implementation, the connecting frame 41 is made of I-beams, which are widely available and do not need to be specially purchased or manufactured, thus reducing the preparation cost. C-beams or connecting plates can also be used.

[0052] During specific implementation, the bottom wing plate of the connecting frame 41 is fixed to the embedded base 1 by welding.

[0053] In specific implementation, a through hole is provided on the bottom wing plate of the connecting frame 41 , and a through slot is provided on the embedded base 1 corresponding to the through hole. The staff passes high-strength bolts through the through hole and screws them to the through slot to achieve the effect of fixing the connecting frame 41 .

[0054] The connection assembly 4 provided in this embodiment has a stable structure, a large contact area between the bottom wing plate of the connection frame 41 and the embedded base 1, a stable connection, and can limit the outer tube 3 on both sides. The two connection frames 41 are respectively connected to the connecting rods 43, which limit the outer tube 3 from all sides to ensure that the outer tube 3 can always remain in a vertical state and ensure the quality of the pier construction. The pad 42 abuts against the outer periphery of the outer tube 3 to increase the contact area and prevent the outer tube 3 from directly abutting against the connection frame 41, resulting in excessive local pressure.

[0055] In some embodiments, see Figure 1The connecting assembly 4 further includes a support member 44, which includes a horizontal plate and a vertical plate vertically connected to each other, the horizontal plate is connected to the top of the connecting frame 41, and the vertical plate is connected to the outer cylinder 3. The support member 44 can be welded to the outer cylinder 3 and the connecting frame 41 respectively to increase the connection strength between the outer cylinder 3 and the connecting frame 41 and improve the stabilizing effect on the outer cylinder 3.

[0056] In specific implementation, the support member 44 is an angle steel, and is welded to the outer cylinder 3 and the connecting frame 41 respectively.

[0057] In some embodiments, see Figure 5 The inner tube 2 is provided with a first mesh plate 22 and a second mesh plate 23 which are perpendicular to each other. The side edges of the first mesh plate 22 and the second mesh plate 23 are respectively in contact with the inner wall of the inner tube 2. The plate surfaces of the first mesh plate 22 and the second mesh plate 23 are parallel to the up-down direction. The first mesh plate 22 and the second mesh plate 23 support the inner tube 2 from four directions respectively, ensuring the bending strength of the inner tube 2. After the filling layer 21 is filled, the structural strength inside the inner tube 2 is ensured, thereby improving the overall structural strength of the bridge pier.

[0058] As another specific implementation method for improving the structural strength of the inner tube 2, a grid structure can be provided in the inner tube 2, which divides the inner tube 2 into a plurality of channels, and the channels extend along the long axis direction of the inner tube 2, and the filling layer 21 is filled into each channel.

[0059] In some embodiments, the filling layer 21 includes evenly mixed crushed stone and sand. After the crushed stone and sand are filled into the inner tube 2, the inner tube 2 becomes a solid structure, which meets the support requirements and ensures the bending strength. The crushed stone and sand are widely available and easy to fill. There is no need to wait for maintenance after filling, which shortens the construction period. The filling layer 21 can be reused to save costs.

[0060] The specific implementation is that the ratio of crushed stone and sand is 1 to 1.5.

[0061] It should be noted that the particle diameter of the crushed stone is larger than the particle diameter of the sandy soil. After the crushed stone is evenly filled into the filling cavity 20, the sandy soil fills the gaps between the crushed stone to ensure the density of the filling layer 21, and further ensure the structural strength of the filling layer 21, so that the bridge pier can work stably.

[0062] In some embodiments, see Figure 3 The top of the inner wall of the outer tube 3 is provided with a reinforcing protrusion 32 extending upward, and the bottom of the inner wall of the outer tube 3 is provided with a reinforcing groove 33, and the reinforcing protrusion 32 and the reinforcing groove 33 of the adjacent outer tube 3 are plugged in and matched. The adjacent reinforcing protrusions 32 and reinforcing grooves 33 are plugged in and matched, and can limit the circumference of the outer tube 3, ensuring that the adjacent outer tubes 3 will not rotate relative to each other, ensuring the stability of the overall structure, improving the stability of the outer tube 3, and improving the construction safety.

[0063] In a specific implementation, a plurality of reinforcing protrusions 32 are provided and arranged around the axis of the outer cylinder 3 to ensure that the outer cylinder 3 is limited from rotating in the circumferential direction.

[0064] In some embodiments, see Figure 1 and Figure 2 An elastic sealing layer 5 is provided between two adjacent outer cylinders 3. The sealing layer 5 can fill the gap between the adjacent outer cylinders 3 to ensure the sealing between the outer cylinders 3, and the concrete will not overflow from the gap between the outer cylinders 3, thereby ensuring the molding quality of the concrete layer 31.

[0065] Optionally, the sealing layer 5 uses a rubber sealing ring to seal the gap between adjacent outer cylinders 3, or a concrete ring may be used.

[0066] In some embodiments, see Figure 6 A rigid sealing ring 6 is provided between two adjacent outer cylinders 3, a first mounting ring groove 61 is provided on the top of the sealing ring 6, and a second mounting ring groove 62 is provided on the bottom of the sealing ring 6, and the first mounting ring groove 61 and the second mounting ring groove 62 are respectively plugged and matched with the adjacent outer cylinders 3. The sealing ring 6 is respectively connected to the upper and lower outer cylinders 3, restricting the movement of the outer cylinders 3 in the radial direction of the outer cylinders 3, and ensuring the overall structural strength of the multiple outer cylinders 3.

[0067] In some embodiments, see Figure 4 The embedded base 1 is connected with a first reinforcing rib 11 and a second reinforcing rib 12 extending upward, the top of the first reinforcing rib 11 extends into the casting cavity 30, and the top of the second reinforcing rib 12 extends into the filling cavity 20. The first reinforcing rib 11 can improve the connection strength between the concrete layer 31 and the embedded base 1, and the second reinforcing rib 12 can improve the connection strength between the filling layer 21 and the embedded base 1, so as to improve the overall structural strength of the pier and ensure the use effect.

[0068] In some embodiments, see Figure 4 The upper part of the embedded base 1 is provided with a mounting groove 13, and the bottom of the inner tube 2 at the bottom is plugged into the mounting groove 13. The installation of the mounting groove 13 facilitates the positioning of the inner tube 2, and can ensure the vertical setting of the inner tube 2, thereby improving the construction quality of the bridge pier.

[0069] In a specific implementation, the second reinforcing rib 12 is disposed in the mounting groove 13 , and the axis thereof is parallel to the axis of the mounting groove 13 .

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A combined bridge pier, characterized in that: include: Embedded base; An inner cylinder is erected on the top of the embedded base, a filling cavity is formed inside the inner cylinder, and a filling layer is arranged in the filling cavity; as well as A plurality of outer cylinders are sequentially sleeved on the outer circumference of the inner cylinder from top to bottom, and the end faces of two adjacent outer cylinders abut against each other, the outer cylinder at the bottom is connected to the embedded base, the axis of the outer cylinder overlaps the axis of the inner cylinder, and a casting cavity is formed between the inner cylinder and the plurality of outer cylinders, and concrete is arranged in the casting cavity.

2. The combined bridge pier according to claim 1, characterized in that: The bridge pier further comprises a connection assembly, wherein the connection assembly comprises: Two connecting frames are symmetrically arranged on both sides of the outer cylinder at the bottom, and the two connecting frames are detachably connected to the embedded base respectively; Two pads are respectively arranged on opposite sides of the corresponding connecting frame, and the two pads are respectively in contact with the outer cylinder; and Two connecting rods are arranged on both sides of the outer cylinder, two ends of the connecting rods are respectively connected to the two connecting frames, and the axes of the connecting rods are perpendicular to the long axes of the connecting frames.

3. The combined bridge pier according to claim 2, characterized in that: The connecting assembly also includes a supporting member, which includes a horizontal plate and a vertical plate vertically connected to each other, wherein the horizontal plate is connected to the top of the connecting frame, and the vertical plate is connected to the outer cylinder.

4. The combined bridge pier according to claim 1, characterized in that: The inner cylinder is provided with a first mesh plate and a second mesh plate which are perpendicular to each other. The side edges of the first mesh plate and the second mesh plate are respectively in contact with the inner wall of the inner cylinder. The plate surfaces of the first mesh plate and the second mesh plate are parallel to the up and down directions.

5. The combined bridge pier according to claim 1, characterized in that: The top of the inner wall of the outer tube is provided with a reinforcing protrusion extending upward, and the bottom of the inner wall of the outer tube is provided with a reinforcing groove, and the reinforcing protrusion is plug-fitted with the adjacent reinforcing groove of the outer tube.

6. The combined bridge pier according to claim 1, characterized in that: An elastic sealing layer is arranged between two adjacent outer cylinders.

7. The combined bridge pier according to claim 1, characterized in that: A rigid sealing ring is provided between two adjacent outer cylinders, a first mounting ring groove is provided at the top of the sealing ring, and a second mounting ring groove is provided at the bottom of the sealing ring, and the first mounting ring groove and the second mounting ring groove are respectively plugged and matched with the adjacent outer cylinders.

8. The combined bridge pier according to claim 1, characterized in that: The embedded base is connected with a first reinforcing rib and a second reinforcing rib extending upward, the top of the first reinforcing rib extends into the casting cavity, and the top of the second reinforcing rib extends into the filling cavity.

9. The combined bridge pier according to claim 1, characterized in that: The upper part of the embedded base is provided with a mounting groove, and the bottom of the inner tube located at the bottom end is plug-fitted with the mounting groove.

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