A prestressed carbon fiber plate anti-fracture reinforcement device for bridge engineering

Abstract

This invention discloses a prestressed carbon fiber plate anti-fracture reinforcement device for bridge engineering, comprising a fixing component, an adjusting component, and a carbon fiber plate disposed under the bridge. The carbon fiber plate is positioned between the fixing component and the adjusting component. This invention relates to the field of bridge reinforcement technology. This prestressed carbon fiber plate anti-fracture reinforcement device for bridge engineering, through the arrangement of a segmented clamping assembly and a tension driving assembly, clamps the carbon fiber plate in segments and applies prestress to the clamped segments. With the addition of a marking assembly, segments of the carbon fiber plate are marked during segmented clamping, facilitating continuous prestressing of different segments. This allows for simultaneous prestressing of the entire carbon fiber plate and assembly of the reinforcement components according to the segment markings, further ensuring uniform reinforcement of the bridge by the carbon fiber plate after prestressing.

Description

Technical Field

[0001] This invention relates to the field of bridge reinforcement technology, specifically to a prestressed carbon fiber plate anti-fracture reinforcement device for bridge engineering. Background Technology

[0002] Carbon fiber plates are formed by impregnating and hardening carbon fibers arranged in the same direction with resin. They can effectively solve the problems of difficult construction and large amount of work in multi-layer carbon fiber cloth. They have good reinforcement effect and are easy to construct. In terms of reinforcement methods, reinforcement methods can now be divided into two categories: active reinforcement technology and passive reinforcement technology. Conventional fiber composite carbon fiber cloth and carbon fiber plates are passive reinforcement methods, while prestressed carbon fiber plates are active reinforcement methods.

[0003] As described in application number 201810522930.1, a prestressed carbon fiber plate tensioning device and a method for reinforcing steel beams are used to stretch the carbon fiber plate by extending a hydraulic jack, thereby applying prestress.

[0004] Based on the search of the above information, it can be seen that when prestressing carbon fiber plates, the conventional method is to fix one end and stretch the other end. When the carbon fiber plate is long, this method is prone to uneven application of prestress. In this case, when the prestressed carbon fiber plate is assembled on the bridge for anti-fracture reinforcement, the uniformity of the bridge reinforcement cannot be guaranteed. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a prestressed carbon fiber plate anti-fracture reinforcement device for bridge engineering, which solves the problem that conventional prestressed carbon fiber plates cannot guarantee the uniformity of bridge reinforcement when assembled onto bridges for anti-fracture reinforcement.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a prestressed carbon fiber plate anti-fracture reinforcement device for bridge engineering, comprising a fixing component, an adjusting component, and a carbon fiber plate disposed under the bridge. The carbon fiber plate is disposed between the fixing component and the adjusting component. The adjusting component is provided with a segmented clamping assembly and a tension driving assembly. The segmented clamping assembly is used to clamp the carbon fiber plate in segments, and the tension driving assembly is used to prestress the carbon fiber plate after segmented clamping. The adjusting component is also provided with a marking assembly, which is used to mark the segments when the carbon fiber plate is clamped in segments. Several reinforcement components adapted to the carbon fiber plate are disposed under the bridge, and the reinforcement components are disposed at the segmented markings of the carbon fiber plate after segmented prestressing tension.

[0009] The present invention is further configured such that: the adjusting member includes a first U-shaped fixing frame, and a first docking plate is fixedly installed on both sides of the top of the first U-shaped fixing frame;

[0010] The bottom of the bridge has a first groove, and two first mating plates are fixedly installed under the bridge by bolts and nuts.

[0011] The present invention is further configured such that: the segmented clamping assembly includes a locking plate and a sliding plate, both of which are slidably mounted on the top of two first mating plates and cooperate with the first groove; the front and rear sides of the bottom of the locking plate are fixedly mounted with first screws, the bottom end of the first screws penetrates the first U-shaped fixing frame and is threadedly connected to a first fastening cap; and the outer periphery of the two first screws is sleeved and slidably mounted with an adjusting plate.

[0012] The front and rear sides of the bottom of the skateboard are fixedly installed with second screws. The outer periphery of the two second screws is fitted with a first fixing plate and a lap plate from top to bottom. The outer surfaces of the two second screws are threaded with two second fastening caps. The two second fastening caps are respectively located below the first fixing plate and below the lap plate. A first telescopic cylinder is fixedly installed on the top of the lap plate and between the two second screws. The telescopic end of the first telescopic cylinder contacts the bottom of the first fixing plate. The two second screws are both located on the right side of the first U-shaped fixing frame.

[0013] A third screw is fixedly installed on both the front and rear sides of the left side of the first fixing plate, and one end of the third screw passes through the adjusting plate.

[0014] The present invention is further configured such that: the stretching drive assembly includes a mounting plate, a second telescopic cylinder is fixedly mounted on the top of the mounting plate, a lifting plate is fixedly mounted on the telescopic end of the second telescopic cylinder, the bottom of the lifting plate is slidably connected to the top of the mounting plate, and an insert plate is fixedly mounted on the right side of the top of the mounting plate.

[0015] The present invention is further configured such that: the bottom of the first U-shaped fixing frame is provided with a slot adapted to the insert plate; one end of the third screw passes through the lifting plate; and three third fastening caps are sleeved on the outer surface of the third screw, and the three third fastening caps are respectively located on the left side of the first fixing plate, the left side of the adjusting plate, and the left side of the lifting plate.

[0016] The present invention is further configured such that: the marking component includes a pigment box, a sponge strip is fixedly fixed through the top of the pigment box, a plurality of cotton strips are provided at the bottom of the sponge strip, and the bottom end of the cotton strips extends to the bottom of the inner cavity of the pigment box;

[0017] A dovetail groove is provided on the right side of the adjusting plate, and a dovetail block that matches the dovetail groove is fixedly installed on the left side of the pigment box.

[0018] The present invention is further configured such that: the reinforcement component includes a reinforcement plate, the top of the reinforcement plate is in contact with the bottom of the carbon fiber plate, and the reinforcement plate is fixedly installed under the bridge by bolts and nuts.

[0019] The present invention is further configured such that: the fixing component includes a second U-shaped fixing frame, and a second docking plate is fixedly installed on both sides of the top of the second U-shaped fixing frame; a second groove is provided at the bottom of the bridge; and the two second docking plates are fixedly installed under the bridge by bolts and nuts.

[0020] The top of the two second docking plates is slidably mounted with positioning plates that are adapted to the second grooves. Several fourth screws are fixedly mounted on the bottom of the second docking plates. The outer periphery of the several fourth screws is sleeved and slidably mounted with a second fixing plate. The outer periphery of the fourth screws is threaded with a fourth nut, and the fourth nut is located below the second fixing plate.

[0021] (III) Beneficial Effects

[0022] This invention provides a prestressed carbon fiber plate anti-fracture reinforcement device for bridge engineering. It has the following beneficial effects:

[0023] (1) The present invention uses segmented clamping components and tension driving components to perform segmented clamping of carbon fiber plates and prestressing treatment on the segmented clamped carbon fiber plates. With the setting of marking components, segmented marking is performed when the carbon fiber plates are segmented, which facilitates continuous prestressing treatment of carbon fiber plates of different segments. While the entire carbon fiber plate is prestressed, the reinforcement components are assembled according to the segmented markings, which further ensures that the carbon fiber plates uniformly reinforce the bridge after the prestress is applied.

[0024] (2) The present invention achieves synchronous lifting and lowering of the adjusting plate and the first fixed plate through the cooperation of the first telescopic cylinder, the first fixed plate, the third screw and the adjusting plate. With the setting of the locking plate and the sliding plate, the carbon fiber plate is clamped in sections. With the extension and retraction of the second telescopic cylinder, the lifting plate is driven to move left and right. With the cooperation of the third fastening cap, the first fixed plate is driven to move, ensuring that a stable prestress is applied to the segmented clamped carbon fiber plate. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0026] Figure 2 This is a schematic diagram showing the connection between the segmented clamping component and the stretching drive component structure of the present invention;

[0027] Figure 3 This is a right view of the segmented clamping component structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the internal structure of the fastener of the present invention;

[0029] Figure 5 For the present invention Figure 2 A magnified view of a portion of point A in the middle;

[0030] In the diagram, 1. Bridge; 2. Fixing component; 3. Adjusting component; 4. Carbon fiber plate; 5. Segmented clamping assembly; 6. Tensioning drive assembly; 7. Marking assembly; 8. Reinforcing assembly; 9. First U-shaped fixing frame; 10. First docking plate; 11. First groove; 12. Locking plate; 13. Slide plate; 14. First screw; 15. First fastening cap; 16. Adjusting plate; 17. Second screw; 18. First fixing plate; 19. Overlap plate; 20. Second fastening cap; 21. ... 1. Telescopic cylinder; 22. Third screw; 23. Mounting plate; 24. Second telescopic cylinder; 25. Lifting plate; 26. Insert plate; 27. Slot; 28. Third fastening cap; 29. ​​Paint box; 30. Sponge strip; 31. Cotton strip; 32. Dovetail groove; 33. Dovetail block; 34. Reinforcing plate; 35. Second U-shaped fixing frame; 36. Second docking plate; 37. Second groove; 38. Positioning plate; 39. Fourth screw; 40. Second fixing plate; 41. Fourth nut. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0032] Please see Figure 1-5 The present invention provides the following technical solution: a prestressed carbon fiber plate anti-fracture reinforcement device for bridge engineering, including a fixing member 2, an adjusting member 3 and a carbon fiber plate 4 disposed below the bridge 1, the carbon fiber plate 4 being disposed between the fixing member 2 and the adjusting member 3, and the adjusting member 3 being provided with a segmented clamping assembly 5 and a tension driving assembly 6.

[0033] As detailed in the description, the adjusting component 3 includes a first U-shaped fixing frame 9, on both sides of the top of the first U-shaped fixing frame 9, a first docking plate 10 is fixedly installed, a first groove 11 is provided at the bottom of the bridge 1, and two first docking plates 10 are fixedly installed below the bridge 1 by bolts and nuts. The fixing component 2 includes a second U-shaped fixing frame 35, on both sides of the top of the second U-shaped fixing frame 35, a second docking plate 36 is fixedly installed, a second groove 37 is provided at the bottom of the bridge 1, and two second docking plates 36 are fixedly installed below the bridge 1 by bolts and nuts. A positioning plate 38 that matches the second groove 37 is slidably installed on the top of the two second docking plates 36. A plurality of fourth screws 39 are fixedly installed on the bottom of the second docking plates 36. A second fixing plate 40 is slidably installed on the outer periphery of the plurality of fourth screws 39. A fourth nut 41 is threaded on the outer periphery of the fourth screws 39 and is located below the second fixing plate 40.

[0034] As a preferred embodiment, in order to achieve segmented clamping of the carbon fiber plate 4, the segmented clamping assembly 5 includes a locking plate 12 and a sliding plate 13. The locking plate 12 and the sliding plate 13 are slidably mounted on the top of the two first docking plates 10 and are used in conjunction with the first groove 11. The front and rear sides of the bottom of the locking plate 12 are fixedly mounted with first screws 14. The bottom end of the first screws 14 passes through the first U-shaped fixing frame 9 and is threadedly connected to the first fastening cap 15. The outer periphery of the two first screws 14 is jointly sleeved and slidably mounted with an adjusting plate 16. The adjusting plate 16 is slidably mounted inside the first U-shaped fixing frame 9.

[0035] The front and rear sides of the bottom of the slide plate 13 are fixedly installed with second screws 17. The outer periphery of the two second screws 17 is fitted with a first fixing plate 18 and a lap plate 19 from top to bottom. The outer surfaces of the two second screws 17 are threaded with two second fastening caps 20. The two second fastening caps 20 are respectively located below the first fixing plate 18 and below the lap plate 19. The top of the lap plate 19 and between the two second screws 17 is fixedly installed with a first telescopic cylinder 21. The first telescopic cylinder 21 is electrically connected to an external power source and is controlled by a control switch. The telescopic end of the first telescopic cylinder 21 contacts the bottom of the first fixing plate 18. The two second screws 17 are both located on the right side of the first U-shaped fixing frame 9.

[0036] The first fixing plate 18 has a third screw 22 fixedly installed on both the front and rear sides of the left side, and one end of the third screw 22 passes through the adjusting plate 16.

[0037] As a preferred embodiment, in order to achieve effective prestress application of the carbon fiber plate 4 after segmented clamping, the tension drive assembly 6 is used to perform prestress tension on the carbon fiber plate 4 after segmented clamping. The tension drive assembly 6 includes a mounting plate 23, a second telescopic cylinder 24 is fixedly mounted on the top of the mounting plate 23, the second telescopic cylinder 24 is electrically connected to an external power source and controlled by a control switch, a lifting plate 25 is fixedly mounted on the telescopic end of the second telescopic cylinder 24, the bottom of the lifting plate 25 is slidably connected to the top of the mounting plate 23, an insert plate 26 is fixedly mounted on the right side of the top of the mounting plate 23, a slot 27 adapted to the insert plate 26 is opened at the bottom of the first U-shaped fixing frame 9, one end of the third screw 22 passes through the lifting plate 25, and three third fastening caps 28 are sleeved on the outer surface of the third screw 22, and the three third fastening caps 28 are respectively located on the left side of the first fixing plate 18, the left side of the adjusting plate 16 and the left side of the lifting plate 25.

[0038] As a preferred embodiment, in order to ensure uniform prestressing of the entire carbon fiber plate 4, the adjusting component 3 is also provided with a marking component 7. The marking component 7 is used to mark the segments when the carbon fiber plate 4 is clamped in segments. The marking component 7 includes a pigment box 29, which contains colored pigment. A sponge strip 30 is fixedly fixed through the top of the pigment box 29. Several cotton strips 31 are provided at the bottom of the sponge strip 30. The bottom end of the cotton strips 31 extends to the bottom of the inner cavity of the pigment box 29. In order to facilitate the installation of the pigment box 29, a dovetail groove 32 is provided on the right side of the adjusting plate 16. A dovetail block 33 that matches the dovetail groove 32 is fixedly installed on the left side of the pigment box 29.

[0039] As a preferred embodiment, in order to improve the stability of the connection between the carbon fiber plate 4 and the bridge 1, a number of reinforcing components 8 adapted to the carbon fiber plate 4 are provided under the bridge 1. The reinforcing components 8 are located at the segment markings of the carbon fiber plate 4 after segmented prestressing tension. Specifically, the reinforcing components 8 include reinforcing plates 34, the top of which contacts the bottom of the carbon fiber plate 4, and the reinforcing plates 34 are fixedly installed under the bridge 1 by bolts and nuts.

[0040] Before use, according to the design dimensions, the first groove 11 and the second groove 37 are dug out under the bridge 1, and several screws are planted under the bridge 1 to provide installation conditions for the first U-shaped fixing frame 9 and the second U-shaped fixing frame 35.

[0041] The specific usage method of the prestressed carbon fiber plate anti-fracture reinforcement device for bridge engineering is as follows:

[0042] S1. Insert the carbon fiber plate 4 from the locking plate 12 side to the sliding plate 13 side, so that the carbon fiber plate 4 is placed between the locking plate 12 and the adjusting plate 16, and between the sliding plate 13 and the first fixed plate 18. Activate the first telescopic cylinder 21, which extends and pushes the first fixed plate 18 to move upward to clamp the carbon fiber plate 4. During the process, the first fixed plate 18 drives the third screw 22 to raise the adjusting plate 16 and clamp the carbon fiber plate 4.

[0043] S2. After completing the clamping in S1, control the second telescopic cylinder 24 to retract. The second telescopic cylinder 24 drives the lifting plate 25 to move to the right. The lifting plate 25 presses the third fastening cap 28, causing the third screw 22 to move to the right. The third screw 22 drives the first fixing plate 18 to move to the right. The first fixing plate 18, through the second screw 17, drives the sliding plate 13 to apply prestress to the clamped carbon fiber plate 4. After the prestress is applied, control the first telescopic cylinder 21 to retract and release the clamping of the carbon fiber plate 4.

[0044] During the upward movement of the adjusting plate 16 in S3 and S1, the pigment box 29 is driven to rise, so that the sponge strip 30 comes into contact with the carbon fiber plate 4, and the pigment absorbed by the sponge strip 31 is printed on the carbon fiber plate 4 to achieve segmented marking.

[0045] S4. Repeat the operations of S1, S2 and S3 according to the segmentation marks in S3 to apply prestress to the entire carbon fiber plate 4.

[0046] S5. When the length of the prestressed carbon fiber plate 4 is sufficient to extend between the positioning plate 38 and the second fixing plate 40, tighten the fourth nut 41 so that the second fixing plate 40 can squeeze and limit the prestressed carbon fiber plate 4.

[0047] S6. Apply adhesive to the top of the prestressed carbon fiber plate 4. During the process, control the second telescopic cylinder 24 to be in the retracted state. After the adhesive is applied, cut the carbon fiber plate 4 between the adjusting plate 16 and the first fixing plate 18. Then start the first telescopic cylinder 21. The first telescopic cylinder 21 extends and pushes the first fixing plate 18 to move upward to clamp the carbon fiber plate 4. Then start the second telescopic cylinder 24. The second telescopic cylinder 24 drives the lifting plate 25 to move to the left. The lifting plate 25 squeezes the third fastening cap 28 to make the third screw 22 move to the left. The third screw 22 drives the first fixing plate 18 to move to the left. The first fixing plate 18 drives the sliding plate 13 to tighten the clamped carbon fiber plate 4 through the second screw 17, so that the carbon fiber plate 4 is tightly attached to the bottom of the bridge 1.

[0048] S7. According to the segmentation marks in S3, plant several bolts under the bridge 1, and use nuts to fix the reinforcement plate 34 under the bridge 1 along the segmentation marks.

[0049] S8. Rotate the third fastening cap 28 in the middle so that the third fastening cap 28 is tightly attached to the left side of the adjusting plate 16. Then cut the third screw 22 on the left side of the third fastening cap 28 to remove the tension drive assembly 6. Then tighten the second fastening cap 20 at the top to the bottom of the first fixing plate 18 to cut the second screw 17 below the first fixing plate 18 and remove the first telescopic cylinder 21.

Claims

1. A prestressed carbon fiber plate anti-fracture reinforcement device for bridge engineering, comprising a fixing member (2), an adjusting member (3), and a carbon fiber plate (4) disposed under a bridge (1), wherein the carbon fiber plate (4) is disposed between the fixing member (2) and the adjusting member (3), characterized in that: The adjusting component (3) is provided with a segmented clamping assembly (5) and a tension driving assembly (6). The segmented clamping assembly (5) is used to clamp the carbon fiber plate (4) in segments. The tension driving assembly (6) is used to perform prestress tension on the carbon fiber plate (4) after segmented clamping. The adjusting component (3) is also provided with a marking assembly (7). The marking assembly (7) is used to mark the segments when the carbon fiber plate (4) is clamped in segments. Several reinforcing assemblies (8) adapted to the carbon fiber plate (4) are provided below the bridge (1). The reinforcing assemblies (8) are located at the segmented markings of the carbon fiber plate (4) after segmented prestress tension. The adjusting component (3) includes a first U-shaped fixing frame (9), and a first docking plate (10) is fixedly installed on both sides of the top of the first U-shaped fixing frame (9). The bottom of the bridge (1) is provided with a first groove (11), and two first mating plates (10) are fixedly installed under the bridge (1) by bolts and nuts; The segmented clamping assembly (5) includes a locking plate (12) and a sliding plate (13). The locking plate (12) and the sliding plate (13) are slidably mounted on the top of two first docking plates (10) and cooperate with the first groove (11). The front and rear sides of the bottom of the locking plate (12) are fixedly mounted with first screws (14). The bottom end of the first screws (14) passes through the first U-shaped fixing frame (9) and is threadedly connected to a first fastening cap (15). The outer periphery of the two first screws (14) is fitted with and slidably mounted with an adjusting plate (16). The front and rear sides of the bottom of the slide plate (13) are fixedly installed with second screws (17). The outer periphery of the two second screws (17) is fitted with a first fixing plate (18) and an overlapping plate (19) from top to bottom. The outer surfaces of the two second screws (17) are threaded with two second fastening caps (20). The two second fastening caps (20) are respectively located below the first fixing plate (18) and below the overlapping plate (19). The top of the overlapping plate (19) and between the two second screws (17) is fixedly installed with a first telescopic cylinder (21). The telescopic end of the first telescopic cylinder (21) is in contact with the bottom of the first fixing plate (18). The two second screws (17) are both located on the right side of the first U-shaped fixing frame (9). The first fixing plate (18) has a third screw (22) fixedly installed on both the front and rear sides of the left side, and one end of the third screw (22) passes through the adjusting plate (16); The marking component (7) includes a paint box (29), with a sponge strip (30) fixed through the top of the paint box (29), and several cotton strips (31) provided at the bottom of the sponge strip (30), with the bottom end of the cotton strips (31) extending to the bottom of the inner cavity of the paint box (29). The right side of the adjusting plate (16) is provided with a dovetail groove (32), and the left side of the pigment box (29) is fixedly installed with a dovetail block (33) that matches the dovetail groove (32).

2. The prestressed carbon fiber plate anti-fracture reinforcement device for bridge engineering according to claim 1, characterized in that: The stretching drive assembly (6) includes a mounting plate (23), a second telescopic cylinder (24) is fixedly mounted on the top of the mounting plate (23), a lifting plate (25) is fixedly mounted on the telescopic end of the second telescopic cylinder (24), the bottom of the lifting plate (25) is slidably connected to the top of the mounting plate (23), and an insert plate (26) is fixedly mounted on the right side of the top of the mounting plate (23).

3. The prestressed carbon fiber plate anti-fracture reinforcement device for bridge engineering according to claim 2, characterized in that: The bottom of the first U-shaped fixing frame (9) is provided with a slot (27) that is compatible with the insert plate (26). One end of the third screw (22) passes through the lifting plate (25). The outer surface of the third screw (22) is fitted with three third fastening caps (28), and the three third fastening caps (28) are respectively located on the left side of the first fixing plate (18), the left side of the adjusting plate (16), and the left side of the lifting plate (25).

4. The prestressed carbon fiber plate anti-fracture reinforcement device for bridge engineering according to claim 1, characterized in that: The reinforcement component (8) includes a reinforcement plate (34), the top of which contacts the bottom of the carbon fiber plate (4), and the reinforcement plate (34) is fixedly installed under the bridge (1) by bolts and nuts.

5. The prestressed carbon fiber plate anti-fracture reinforcement device for bridge engineering according to claim 1, characterized in that: The fastener (2) includes a second U-shaped fixing frame (35), and a second docking plate (36) is fixedly installed on both sides of the top of the second U-shaped fixing frame (35). A second groove (37) is opened at the bottom of the bridge (1), and the two second docking plates (36) are fixedly installed under the bridge (1) by bolts and nuts. The top of the two second docking plates (36) is slidably mounted with a positioning plate (38) that is compatible with the second groove (37). The bottom of the second docking plates (36) is fixedly mounted with a plurality of fourth screws (39). The outer periphery of the plurality of fourth screws (39) is sleeved and slidably mounted with a second fixing plate (40). The outer periphery of the fourth screws (39) is threaded with a fourth nut (41), and the fourth nut (41) is located below the second fixing plate (40).

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