A ribbed UHPC tube basalt fiber recycled concrete composite single column pier

Abstract

The present invention discloses a ribbed UHPC tube basalt fiber recycled concrete combined single-column pier, which belongs to the technical field of bridge engineering, and comprises a pier outer tube, which is composed of a first outer tube and a second outer tube. An anti-shear device is installed on the pier outer tube, and a fixed column is connected to the pier outer tube. There are multiple fixed columns, which are arranged on the first outer tube and the second outer tube in pairs. The cross section of the fixed column is L-shaped, and a movable plate passes through the fixed column. The tightening component is rotatably connected to the support bar, the support bar is fixedly connected to the movable plate, the support bar is slidably connected to the fixed column, and there are two support bars arranged crosswise. One end of the traction wire rope passes through the fixed column and is connected to the first outer tube, and the other end of the traction wire rope surrounds the tightening component and passes through the support bar, and the other end of the traction wire rope is fixedly connected to the tightening component at the lower end of the support bar. This solves the problem that the bridge pier is twisted and damaged by shear force due to the influence of external environment such as strong wind weather in the existing device.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge engineering, and in particular relates to a ribbed UHPC tube basalt fiber recycled concrete combined single column pier. Background Art

[0002] Bridges are important hubs of traffic lifelines. Once a bridge is damaged during strong winds, it is easy to cause traffic interruption, resulting in rescue personnel being unable to arrive in time, and causing immeasurable casualties and economic losses. As the main component of a bridge, the pier plays a vital role in the overall stability of the bridge. At present, single-column piers are widely used due to their beautiful appearance, small structural engineering volume and saved floor space. In the prior art, single-column piers generally adopt traditional reinforced concrete structures, and their main forms of damage are bending damage and shear damage. They are easily affected by external environments such as strong winds, causing the piers to twist and be damaged by shear forces. Summary of the invention

[0003] In view of this, the purpose of the present invention is to provide a ribbed UHPC tube basalt fiber recycled concrete combined single-column pier to solve the problem of the existing device being affected by external environment such as strong wind weather, resulting in the pier being twisted and damaged by shear force.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention provides a ribbed UHPC tube basalt fiber recycled concrete composite single column pier, characterized in that it includes a column pier outer cylinder, the column pier outer cylinder includes a first outer cylinder and a second outer cylinder spliced ​​together, an anti-shear device is installed on the column pier outer cylinder, the anti-shear device includes: a fixed column, a movable plate, a support bar, a traction steel wire rope and a tightening component, the fixed column is connected to the column pier outer cylinder, there are multiple fixed columns and they are arranged on the first outer cylinder and the second outer cylinder in pairs, the cross-section of the fixed column is L-shaped, the movable plate passes through the fixed column, the tightening component is rotatably connected to the support bar, the support bar is fixedly connected to the movable plate, the support bar is slidably connected to the fixed column, and two of the support bars are cross-arranged, one end of the traction steel wire rope passes through the fixed column and is connected to the first outer cylinder, the other end of the traction steel wire rope surrounds the tightening component and passes through the support bar, and the other end of the traction steel wire rope is fixedly connected to the tightening component at the lower end of the support bar.

[0006] Furthermore, the tightening component includes: a first rotating wheel, a second rotating wheel, a third rotating wheel, a gear and a rack, the first rotating wheel is rotatably connected to the upper end of the support bar, the second rotating wheel is rotatably connected to the lower end of the support bar, the third rotating wheel is located at the lower side of the second rotating wheel, the gear is located on the side of the third rotating wheel, the gear is fixedly connected to the third rotating wheel, one end of the traction wire rope is connected to the first outer cylinder and wraps around the first rotating wheel, the other end of the traction wire rope passes through the support bar and wraps around the second rotating wheel and is fixedly connected to the gear, the rack is connected to the fixed column, and the rack is meshed with the gear.

[0007] A clamping device is provided at the connection between the first outer cylinder and the second outer cylinder, and the clamping device includes: a groove, a baffle, a protrusion, a sliding block, a connecting rod, a spring and a fixed block. The first outer cylinder is provided with a groove, and the second outer cylinder is provided with a protrusion corresponding to the groove. The bottom of the groove is elliptical, and two baffles are located at the bottom of the groove. The front end of the protrusion is connected to the fixed block, and a through hole is provided in the middle of the fixed block. One end of the connecting rod passes through the fixed block, and the other end of the connecting rod is connected to the sliding block. The connecting rod passes through the spring, and the spring is located between the fixed block and the sliding block.

[0008] Furthermore, the interior of the protrusion is hollow, and the outer side of the clamping device is connected to a pouring ring, the pouring ring is hollow, and the pouring ring is provided with an opening.

[0009] Furthermore, the first rotating wheel, the second rotating wheel and the third rotating wheel are all provided with inverted cone pieces.

[0010] Furthermore, the outer tube of the pier is made of ultra-high performance concrete UHPC, a steel cage and a cast-in-place recycled concrete column core mixed with basalt fiber are arranged inside the outer tube of the pier, and the outer tube of the pier is provided with a plurality of concrete ribs arranged along the axial direction.

[0011] The beneficial effects of the present invention are:

[0012] The present invention provides a ribbed UHPC tube basalt fiber recycled concrete combined single column pier. A moving plate is blown by strong wind, and the moving plate drives the traction wire rope to move, so that the traction wire rope is tightened by a tightening component, thereby improving the anchoring force of the outer tube of the pier to prevent shearing of the outer tube of the pier; the support bar is slidably connected with the fixed column, so that the support bar has traction force, thereby improving the traction force of the outer tube of the pier; the connection of the outer tube of the pier can be made more secure by a clamping device, and the outer side of the clamping device can be coated with concrete by a casting ring to improve the firmness of the outer tube of the pier; and the traction wire rope is prevented from sliding by an inverted cone.

[0013] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0015] Figure 1 It is an overall display diagram of the present invention;

[0016] Figure 2 It is a side view of the present invention;

[0017] Figure 3 It is a cross-sectional view of the anti-shear device and other components of the present invention;

[0018] Figure 4 It is a cross-sectional view of the clamping device of the present invention;

[0019] Figure 5 This is a splicing view of the outer tube of the pier of the present invention;

[0020] Figure 6 This is a cross-sectional view of the outer tube of the pier of the present invention;

[0021] Figure 7 This is an enlarged view of the first rotating wheel of the present invention.

[0022] The markings in the attached drawings are as follows: 1. pier outer tube; 12. first outer tube; 13. second outer tube; 2. anti-shear device; 21. fixed column; 22. movable plate; 23. support bar; 24. traction wire rope; 3. tightening component; 31. first rotating wheel; 32. second rotating wheel; 33. third rotating wheel; 34. gear; 35. rack; 4. clamping device; 41. groove; 42. protrusion; 43. sliding block; 44. fixed block; 45. spring; 46. through hole; 47. connecting rod; 48. baffle; 5. inverted cone; 6. pouring ring; 7. steel cage; 8. concrete rib; 9. recycled concrete column core. DETAILED DESCRIPTION

[0023] like Figures 1 to 6As shown, the present invention provides a ribbed UHPC tube basalt fiber recycled concrete composite single column pier, characterized in that it includes a column pier outer tube 1, and the column pier outer tube 1 is made of ultra-high performance concrete UHPC. A steel cage 7 and a cast-in-place recycled concrete column core 9 mixed with basalt fiber are arranged inside the column pier outer tube 1. The cast-in-place recycled concrete column core 9 mixed with basalt fiber is composed of a mixture of recycled concrete aggregate, basalt fiber, cement, fine sand, silica powder and fly ash ceramsite. The volume proportion of recycled concrete aggregate is 20%~30%, the volume proportion of basalt fiber is 0.1%~0.4%, the volume proportion of cement is 30%~40%, the volume proportion of fine sand is 20%~30%, the volume proportion of silica powder is 10%~15%, and the volume proportion of fly ash ceramsite is 5%~10%. The column pier outer tube 1 is provided with a plurality of concrete ribs 8 arranged along the axial direction. The column pier outer tube 1 is composed of a first outer tube 12 and a second outer tube 13, and an anti-shear device 2 is installed on the column pier outer tube 1. The anti-shear device 2 includes: a fixed column 21, a movable plate 22, a support bar 23, a traction wire rope 24 and a tightening component 3. The fixed column 21 is connected to the column pier outer tube 1. There are multiple fixed columns 21 and they are arranged on the first outer tube 12 and the second outer tube 13 in pairs. The fixed columns 21 correspond to each other in a group, and there are four groups surrounding the column pier outer tube 1. The cross section of the fixed column 21 is L-shaped. The movable plate 22 is arc-shaped, and the movable plate 22 passes through the fixed column 21 and is slidably connected to the fixed column 21. The tightening component 3 is rotatably connected to the support bar 23. The support bar 23 is arc-shaped and fixedly connected to the movable plate 22. The support bar 23 is slidably connected to the fixed column 21. There are two support bars 23 arranged crosswise to achieve the purpose of traction of the column pier outer tube 1. One end of the traction wire rope 24 passes through the fixed column 21 and is connected to the first outer cylinder 12, and the other end of the traction wire rope 24 wraps around the tightening component 3 and passes through the support bar 23. The other end of the traction wire rope 24 is fixedly connected to the tightening component 3 at the lower end of the support bar 23.

[0024] The working principle of the above scheme is: after the first outer tube 12 and the second outer tube 13 are spliced ​​to form the column pier outer tube 1, the anti-shear device 2 is installed on the outside of the column pier outer tube 1. When encountering strong wind weather, the wind blows the movable plate 22, causing the movable plate 22 to move toward the column pier outer tube 1. At this time, the movable plate 22 drives the tightening component 3 to tighten the traction wire rope 24, making the traction wire rope 24 tighter. The movable plate 22 can also fit the column pier outer tube 1, so that the column pier outer tube 1 will not be hit by debris brought by strong winds. The recycled concrete aggregate, basalt fiber, concrete, fine sand and water uniformly mixed according to the designed ratio are poured into the interior of the column pier outer tube 1, and vibrated to ensure the dense structure.

[0025] The beneficial effects of the above scheme are as follows: the moving plate 22 is blown by strong wind, so that the moving plate 22 drives the traction wire rope 24 to move, so that the traction wire rope 24 is tightened by the tightening component 3, thereby improving the anchoring force of the column pier outer tube 1 to prevent the column pier outer tube 1 from shearing; the support bar 23 is slidably connected with the fixed column 21, so that the support bar 23 has traction force, thereby improving the traction force of the column pier outer tube 1.

[0026] In one embodiment of the present invention, Figures 3 to 7 As shown, the tightening component 3 includes: a first rotating wheel 31, a second rotating wheel 32, a third rotating wheel 33, a gear 34 and a rack 35. The first rotating wheel 31, the second rotating wheel 32 and the third rotating wheel 33 are all provided with an arc groove, and a plurality of inverted cone pieces 5 are provided in the arc groove. The first rotating wheel 31 is rotatably connected to the upper end of the support bar 23, and the upper end of the support bar 23 is located on the side of the fixed column 21. The second rotating wheel 32 is rotatably connected to the lower end of the support bar 23, and the lower end of the support bar 23 is located on the side of the fixed column 21. The third rotating wheel 33 is located at the lower side of the second rotating wheel 32. The gear 34 is located on the side of the third rotating wheel 33, and the gear 34 is fixedly connected to the third rotating wheel 33. One end of the traction wire rope 24 is connected to the first outer cylinder 12 and passes through the first rotating wheel 31, and the other end of the traction wire rope 24 passes through the support bar 23 and passes through the second rotating wheel 32 to be fixedly connected to the gear 34. The rack 35 is connected to the fixed column 21, and the rack 35 is meshed with the gear 34. The teeth of the gear 34 are conical, and the teeth of the rack 35 are conical.

[0027] The working principle of the above scheme is: when the moving plate 22 is moved by strong wind, the first rotating wheel 31 rotates to drive the traction wire rope 24 to the direction of the second rotating wheel 32. At this time, the gear 34 drives the third rotating wheel 33 to rotate, and the third rotating wheel 33 collects the traction wire rope 24, thereby tightening the traction wire rope 24. When there is no wind, the moving plate 22 is no longer subjected to force, and the traction wire rope 24 drives the moving plate 22 to reset.

[0028] The beneficial effects of the above scheme are as follows: the traction wire rope 24 is connected with the gear 34 so that the traction wire rope 24 has a tightening function, so that the traction wire rope 24 has a pulling force on the column pier outer tube 1 to prevent the column pier outer tube 1 from being sheared; the gear 34 makes the traction wire rope 24 pull tighter as the movable plate 22 moves toward the column pier outer tube 1; the inverted cone piece 5 is used to prevent the traction wire rope 24 from slipping.

[0029] In one embodiment of the present invention, Figures 1 to 5As shown, it is characterized in that: a clamping device 4 is provided at the connection between the first outer cylinder 12 and the second outer cylinder 13, and the clamping device 4 has a plurality of uniformly arranged around the connection between the first outer cylinder 12 and the second outer cylinder 13. The clamping device 4 includes: a groove 41, a baffle 48, a convex block 42, a sliding block 43, a connecting rod 47, a spring 45 and a fixed block 44. The first outer cylinder 12 is provided with a groove 41, the upper part of which is wedge-shaped, the second outer cylinder 13 is provided with a convex block 42 corresponding to the groove 41, the bottom of which is elliptical, the baffle 48 has two pieces arranged oppositely at the bottom of the groove 41, and the front end of the baffle 48 is arc-shaped. The front end of the convex block 42 is connected to the fixed block 44, the middle part of which is provided with a through hole 46, one end of the connecting rod 47 passes through the fixed block 44, the other end of the connecting rod 47 is connected to the sliding block 43, the connecting rod 47 passes through the spring 45, and the spring 45 is located between the fixed block 44 and the sliding block 43. The protrusion 42 is hollow inside, and a pouring ring 6 is connected to the outside of the clamping device 4. The pouring ring 6 is divided into two halves, and the pouring ring 6 is hollow and has an opening.

[0030] The working principle of the above scheme is as follows: when the protrusion 42 enters the groove 41, the sliding block 43 contacts the front end of the baffle 48, and the sliding plate moves closer to the fixed block 44, and the spring 45 compresses the connecting rod 47 to move toward the fixed block 44. At this time, the protrusion 42 is stuck in the groove 41, and the sliding block 43 is no longer in contact with the baffle 48. The spring 45 drives the connecting rod 47 and the sliding block 43 to reset, and the sliding block 43 is located on the baffle 48, and the protrusion 42 is stuck in the groove 41. At this time, the pouring ring 6 is closed, and concrete is poured into the pouring ring 6, and the concrete will also flow into the protrusion 42, thereby strengthening the connection between the protrusion 42 and the groove 41.

[0031] The beneficial effects of the above solution are as follows: the clamping device 4 can make the connection of the pier outer tube 1 more secure, and the pouring ring 6 can cover the outer side of the clamping device 4 with concrete to improve the firmness of the pier outer tube 1.

[0032] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A ribbed UHPC tube basalt fiber recycled concrete composite single column pier, characterized by: The invention comprises a column pier outer tube (1), wherein the column pier outer tube (1) comprises a first outer tube (12) and a second outer tube (13) spliced ​​together, and an anti-shear device (2) is installed on the column pier outer tube (1), and the anti-shear device (2) comprises: a fixed column (21), a movable plate (22), a support bar (23), a traction wire rope (24) and a tightening component (3), and the fixed column (21) is connected to the column pier outer tube (1), and the fixed column (21) has a plurality of fixed columns (21) and is arranged in pairs on the first outer tube (12) and the second outer tube (13). The fixed column (21) has an L-shaped cross section, the movable plate (22) passes through the fixed column (21), the tightening component (3) is rotatably connected to the support bar (23), the support bar (23) is fixedly connected to the movable plate (22), the support bar (23) is slidably connected to the fixed column (21), two support bars (23) are arranged crosswise, one end of the traction wire rope (24) passes through the fixed column (21) and is connected to the first outer cylinder (12), and the other end of the traction wire rope (24) is wrapped around the tightening component (3) and passes through the support bar (23), the other end of the traction wire rope (24) is fixedly connected to the tightening component (3) at the lower end of the support bar (23); the tightening component (3) comprises: a first rotating wheel (31), a second rotating wheel (32), a third rotating wheel (33), a gear (34) and a rack (35), the first rotating wheel (31) is rotatably connected to the upper end of the support bar (23), the second rotating wheel (32) is rotatably connected to the lower end of the support bar (23), and the third rotating wheel (33) is located on the second rotating wheel (32), the gear (34) is located on the side of the third rotating wheel (33), the gear (34) is fixedly connected to the third rotating wheel (33), one end of the traction wire rope (24) is connected to the first outer cylinder (12) and passes around the first rotating wheel (31), the other end of the traction wire rope (24) passes through the support bar (23) and passes around the second rotating wheel (32) and is fixedly connected to the gear (34), the rack (35) is connected to the fixed column (21), and the rack (35) is meshed with the gear (34).

2. The ribbed UHPC tube basalt fiber recycled concrete composite monocolumn pier according to claim 1, characterized in that: A clamping device (4) is provided at the connection between the first outer cylinder (12) and the second outer cylinder (13), and the clamping device (4) comprises: a groove (41), a baffle (48), a convex block (42), a sliding block (43), a connecting rod (47), a spring (45) and a fixed block (44). The first outer cylinder (12) is provided with a groove (41), and the second outer cylinder (13) is provided with a convex block (42) corresponding to the groove (41). The bottom of the groove (41) is elliptical. Two baffles (48) are located at the bottom of the groove (41). The front end of the convex block (42) is connected to the fixed block (44). A through hole (46) is provided in the middle of the fixed block (44). One end of the connecting rod (47) passes through the fixed block (44), and the other end of the connecting rod (47) is connected to the sliding block (43). The connecting rod (47) passes through the spring (45), and the spring (45) is located between the fixed block (44) and the sliding block (43).

3. The ribbed UHPC tube basalt fiber recycled concrete composite monocolumn pier according to claim 2, characterized in that: The interior of the protrusion (42) is hollow, and the outside of the clamping device (4) is connected to a pouring ring (6), the pouring ring (6) is hollow, and the pouring ring (6) is provided with an opening.

4. The ribbed UHPC tube basalt fiber recycled concrete composite monocolumn pier according to claim 1, characterized in that: The first rotating wheel (31), the second rotating wheel (32) and the third rotating wheel (33) are all provided with an inverted cone piece (5).

5. The ribbed UHPC tube basalt fiber recycled concrete composite monocolumn pier according to claim 1, characterized in that: The column pier outer tube (1) is made of ultra-high performance concrete (UHPC), a steel cage (7) and a cast-in-place recycled concrete column core (9) mixed with basalt fibers are arranged inside the column pier outer tube (1), and the column pier outer tube (1) is provided with a plurality of concrete ribs (8) arranged along the axial direction.

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