Concrete crash barrier joint construction method

Abstract

The application provides a concrete crash barrier joint construction method and relates to the technical field of bridge crash barrier construction technology, and comprises the following steps: installing a crash barrier module; wrapping a crash barrier joint forming plate with a foam plate; placing the foam plate-wrapped crash barrier joint forming plate into the crash barrier module, so that the crash barrier joint forming plate and the preset crash barrier joint position are in the same position; fixing the foam plate-wrapped crash barrier joint forming plate by using an L-shaped steel bar; pouring concrete; after the concrete reaches the demolding strength, disassembling the crash barrier joint forming plate and the crash barrier module; removing sundries in the concrete joint and sealing the joint by using sealant, thereby forming a crash barrier joint; and replacing the wooden formwork with the crash barrier joint forming plate. The crash barrier joint forming plate can be recycled, thereby avoiding the waste of the wooden formwork, saving the cost of removing the joint formwork and processing the formwork, and achieving good use effect.

Description

Technical Field

[0001] This invention relates to the field of bridge crash barrier construction technology, specifically a method for constructing fracture joints in concrete crash barriers. Background Technology

[0002] With the development of highway engineering, the proportion of expansion joints reserved in concrete crash barriers for highway bridges and high retaining walls is increasing. Traditionally, wooden formwork is used to cut the joints of concrete crash barriers. Because the wooden formwork is well bonded to the concrete, it is difficult to remove it later. In addition, the wooden formwork has a small expansion and contraction range. If it is not removed, it is easy to cause the concrete crash barrier to crack under high temperature. At the same time, the wooden formwork cannot be reused. Each joint requires the processing of formwork, which wastes labor and materials. Summary of the Invention

[0003] This invention provides a method for constructing joints in concrete crash barriers, which solves the aforementioned technical problems. Due to the good bond between wooden formwork and concrete, it is difficult to remove it later. Furthermore, the wooden formwork has a small expansion and contraction range, and if it is not removed, it can easily cause the concrete crash barrier to crack under high temperatures. At the same time, the wooden formwork cannot be reused, and each joint requires the processing of formwork, which wastes labor and materials.

[0004] To solve the above-mentioned technical problems, this invention discloses a method for constructing fracture joints in concrete crash barriers, comprising the following steps:

[0005] Step 1: Install the crash barrier module;

[0006] Step 2: Wrap the anti-collision guardrail joint shaping board with foam board;

[0007] Step 3: Place the foam-board-wrapped crash barrier joint shaping plate into the crash barrier module, so that the crash barrier joint shaping plate is in the same position as the preset crash barrier joint position;

[0008] Step 4: Use L-shaped steel bars to secure the foam board-wrapped crash barrier joint fixing plate;

[0009] Step 5: Pour concrete into the crash barrier module. After the concrete reaches the demolding strength, disassemble the crash barrier joint shaping plate and the crash barrier module.

[0010] Step 6: Remove debris from the gap in the crash barrier and seal the area around the gap with sealant to form a crash barrier gap.

[0011] Preferably, the crash barrier module includes front and rear crash barrier templates, which are connected by a connecting mechanism. The connecting mechanism includes two through holes 1 that are provided through the lower side of each of the front and rear crash barrier templates, which are distributed left and right. Two connecting plates are fixedly provided at the upper end of each of the front and rear crash barrier templates, which are distributed left and right. Through holes 2 are provided through the connecting plates. The front and rear through holes 1 are correspondingly engaged with tie rod 1. A sleeve is fitted on the middle cylindrical section of tie rod 1. The threaded sections at the front and rear of tie rod 1 are threadedly connected to bolt 1. The front and rear through holes 2 are correspondingly engaged with tie rod 2. The threaded sections at the front and rear of tie rod 2 are threadedly connected to bolt 2.

[0012] Preferably, the anti-collision guardrail joint shaping plate includes a shaping plate, the upper end of which is provided with a lifting plate, and the lifting plate is provided with a lifting hole.

[0013] Preferably, the specific steps of step 1 are as follows;

[0014] Step 11: After removing the thickness of the concrete protective layer according to the outer contour dimensions of the crash barrier, hang a line and tie the steel bars of the crash barrier segments to form a front and rear distributed crash barrier steel mesh. Steel bars are welded between the front and rear distributed crash barrier steel meshes.

[0015] Step 12: Using construction equipment, move the front and rear distributed guardrail templates to the corresponding positions of the front and rear distributed guardrail steel mesh;

[0016] Step 13: Connect the front and rear guardrail templates using the connecting mechanism to complete the installation of the guardrail modules.

[0017] Preferably, step 5 consists of the following steps:

[0018] Step 51: Disassemble the connecting mechanism of the front and rear guardrail templates so that the guardrail templates are unconnected in the front and rear direction;

[0019] Step 52: Use construction equipment to remove the anti-collision guardrail joint shaping plate from the concrete joint;

[0020] Step 53: Use construction equipment to dismantle the crash barrier template.

[0021] Preferably, the construction equipment includes a top block, with symmetrical base platforms on the front and rear sides of the lower end of the top block. A placement plate is provided at one end of each base platform that is close to the other, and the placement plate is used to place the anti-collision guardrail template. Wheels are provided at the lower end of the base platforms. The rear base platform is fixedly connected to a fixing plate. An electric telescopic rod is fixedly provided at the upper end of the fixing plate, and the electric telescopic rod is fixedly connected to the rear end of the top block. Motors are symmetrically provided at the front and rear ends of the top block. A cavity three is provided at the lower end of the top block. A connecting block one is fixedly provided in the middle of the lower end of the cavity three. Threaded rods are symmetrically provided on the front and rear sides of the connecting block one. The threaded section of the threaded rod one is threadedly connected to a connecting block two. Connecting blocks two are symmetrically arranged on the front and rear sides of the cavity three. The cylindrical section of the threaded rod one passes through the side end of the cavity three and is fixedly connected to the motor one.

[0022] Preferably, both connecting block one and connecting block two have mounting grooves at their lower ends, in which a hoist is installed and fixedly connected to the hook.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] Replacing wooden formwork with prefabricated joint boards for crash barriers effectively prevents damage caused by thermal expansion of the crash barriers due to the inability to remove wooden formwork. Furthermore, the prefabricated joint boards can be reused, avoiding waste of wooden formwork and saving the cost of removing and processing formwork. The results are excellent.

[0025] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0026] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0027] Figure 1 This is a schematic diagram of the construction method of the present invention;

[0028] Figure 2 This is a schematic diagram of the construction equipment structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the connection structure between the crash barrier module and the crash barrier joint shaping plate of the present invention;

[0030] Figure 4 This is a schematic diagram showing the distribution of through holes one and two on the anti-collision guardrail template of the present invention;

[0031] Figure 5 This is a top view schematic diagram of the connection structure between the anti-collision guardrail module and the anti-collision guardrail joint shaping plate of the present invention;

[0032] Figure 6This is a schematic diagram of the anti-collision guardrail joint shaping plate structure of the present invention;

[0033] Figure 7 This is a schematic diagram of the crash barrier and the crash barrier joint structure of the present invention;

[0034] Figure 8 This is a front view structural diagram of the construction equipment of the present invention;

[0035] Figure 9 This is a schematic diagram of the automatic disassembly mechanism for the anti-collision guardrail module of the present invention;

[0036] Figure 10 for Figure 9 A magnified structural diagram of region A in the diagram.

[0037] In the diagram: 1. Crash barrier module; 101. Crash barrier template; 102. Through hole two; 103. Tie rod two; 104. Tie rod one; 105. Bolt one; 106. Connecting plate; 107. Bolt two; 108. Through hole one; 2. Crash barrier joint shaping plate; 201. Lifting plate; 202. Lifting hole; 203. Shaping plate; 3. Foam board; 4. Electric telescopic rod one; 5. Fixing plate one; 6. Connecting block one; 7. Base; 8. Placement plate; 9. Lifting machine; 10. Hook; 11. Motor one; 12. Threaded rod one; 13. Connecting block two; 14. Fixing shell one; 15. Mounting plate; 16. Wheel; 17. Motor two; 18. Threaded sleeve; 19. L-shaped 20. Plate; 21. Through hole; 22. Cavity 1; 23. Sliding sleeve; 24. Sliding block; 25. Connecting block 4; 26. Mounting block; 27. Fixing rod; 28. Rotating rod; 29. ​​Base block; 20. Connecting block 3; 30. Clamping plate; 31. Buffer cavity; 32. Slider; 33. Spring; 34. Bolt sleeve; 35. Gear 1; 36. Cavity 2; 37. Motor 3; 38. Gear 2; 39. Top block; 40. L-shaped steel bar; 41. Steel bar; 42. Cavity 3; 43. Telescopic rod; 44. Electric telescopic rod 2; 45. Fixing plate 2; 46. Sliding hole; 47. Fixing shell 2; 48. Anti-collision guardrail steel mesh; 49. Anti-collision guardrail gap; 50. Anti-collision guardrail. Detailed Implementation

[0038] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0039] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0040] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0041] The present invention provides the following embodiments.

[0042] Example 1

[0043] This invention provides a method for constructing joints in concrete crash barriers, such as... Figure 1 As shown,

[0044] Step 1: Install crash barrier module 1;

[0045] Step 2: Wrap the anti-collision guardrail joint shaping board 2 with foam board 3;

[0046] Step 3: Place the foam board 3-wrapped crash barrier joint shaping plate 2 into the crash barrier module 1, so that the crash barrier joint shaping plate 2 is in the same position as the preset crash barrier joint position.

[0047] Step 4: Use L-shaped steel bars 40 to fix the anti-collision guardrail joint shaping plate 2 wrapped with foam board 3;

[0048] Step 5: Pour concrete into the crash barrier module 1. After the concrete reaches the demolding strength, hoist and disassemble the crash barrier joint shaping plate 2 and the crash barrier module 1.

[0049] Step 6: Remove debris from the gap 49 of the crash barrier and seal the area around the gap with sealant to prevent debris from filling the gap and forming the crash barrier gap 49.

[0050] The working principle of the above technical solution is as follows:

[0051] According to the cross-sectional shape of the crash barrier 50, the crash barrier joint shaping plate 2 is laser-cut. A lifting lug is pre-installed at the top of the crash barrier joint shaping plate 2. Before installation, the entire crash barrier joint shaping plate 2, wrapped with foam board 3, is placed into the corresponding position of the pre-set crash barrier joint and fixed with L-shaped steel bars 40. After the concrete is poured, the crash barrier joint shaping plate 2 is lifted out, leaving the L-shaped steel bars 40 and foam board 3 inside the crash barrier 50. The crash barrier module 1 is then disassembled, and the area around the concrete joint is sealed with flexible sealant, specifically asphalt mastic. Replacing the wooden formwork with the break joint shaping board 2 effectively avoids the damage caused by thermal expansion of the guardrail due to the inability to remove the wooden formwork. Furthermore, the break joint shaping board 2 can be reused, avoiding the waste of wooden formwork and saving the cost of removing and processing formwork. It has proven effective in solving the problems of wooden formwork being difficult to remove later due to its strong bond with concrete, its limited expansion and contraction leading to cracking of the concrete guardrail under high temperatures if not removed, and the inability to reuse wooden formwork, requiring formwork processing for each break joint, resulting in wasted labor and materials.

[0052] Example 2

[0053] Based on Example 1, such as Figures 2-7 As shown, the crash barrier module 1 includes crash barrier templates 101 distributed front and rear. The crash barrier templates 101 are connected by a connecting mechanism. The connecting mechanism includes two through holes 108 that are provided through the lower side of the crash barrier templates 101. The two through holes 108 are distributed left and right. Two connecting plates 106 are fixedly provided at the upper end of the crash barrier templates 101. The two connecting plates 106 are distributed left and right. Through holes 102 are provided through the connecting plates 106. The through holes 108 distributed front and rear are correspondingly engaged with the tie rods 104. A sleeve is fitted on the cylindrical section in the middle of the tie rods 104. The threaded sections of the tie rods 104 at both the front and rear are threadedly connected with bolts 105. The through holes 102 distributed front and rear are correspondingly engaged with the tie rods 103. The threaded sections of the tie rods 103 at both the front and rear are threadedly connected with bolts 107.

[0054] The anti-collision guardrail joint shaping plate 2 includes a shaping plate 203, and a lifting plate 201 is provided at the upper end of the shaping plate 203. A lifting hole 202 is provided through the lifting plate 201.

[0055] The working principle of the above technical solution is as follows:

[0056] The lifting plate 201 and the lifting hole 202 constitute the lifting nose. The front and rear anti-collision guardrail templates 101 can be connected by tie rod 2 103 and bolt 2 107, tie rod 104 and bolt 105 to form the anti-collision guardrail module 1, which facilitates the pouring of concrete. A sleeve is installed on the middle cylindrical section of tie rod 104 to prevent concrete from being poured on tie rod 104, so that tie rod 104 can be pulled out after the concrete is poured, which in turn facilitates the disassembly of the front and rear anti-collision guardrail templates 101. The front and rear anti-collision guardrail templates 101 have different shapes. The front side of the anti-collision guardrail 50 has the same shape as the front anti-collision guardrail template 101, and the rear side of the anti-collision guardrail 50 has the same shape as the rear anti-collision guardrail template 101.

[0057] Example 3

[0058] Based on Example 2, such as Figures 1-7 As shown, the specific steps of step 1 are as follows;

[0059] Step 11: After removing the thickness of the concrete protective layer according to the outer contour dimensions of the crash barrier, hang a line and tie the steel bars of the crash barrier segments to form a front and rear distributed crash barrier steel mesh 48. Two steel bars 41 are welded between the front and rear distributed crash barrier steel mesh 48.

[0060] Step 12: Using construction equipment, move the front and rear distributed anti-collision guardrail templates 101 to the corresponding positions of the front and rear distributed anti-collision guardrail steel mesh 48;

[0061] Step 13: Connect the front and rear guardrail templates 101 using the connecting mechanism to complete the installation of the guardrail module 1.

[0062] The specific steps of step 5 are as follows:

[0063] Step 51: Disassemble the connecting mechanism of the front and rear guardrail templates 101 so that the guardrail templates are unconnected in the front and rear direction.

[0064] Step 52: Use construction equipment to remove the anti-collision guardrail joint shaping plate 2 from the concrete joint;

[0065] Step 53: Use construction equipment to dismantle the crash barrier template 101.

[0066] The working principle of the above technical solution is as follows:

[0067] The front crash barrier template 101 contacts the front crash barrier steel mesh 48, and the rear crash barrier template 101 contacts the rear crash barrier steel mesh 48. Two steel bars 41 are symmetrically distributed on the left and right sides of the crash barrier steel mesh 48 with the crash barrier joint as the center line. L-shaped steel bars 40 can be welded on the steel bars 41, and the vertical end of the L-shaped steel bars 40 contacts the foam board 3. Thus, the left and right sides of the crash barrier joint shaping plate 2 wrapped by the foam board 3 are limited by L-shaped steel bars 40, which completes the purpose of fixing the crash barrier joint shaping plate 2 wrapped by the foam board 3 with the L-shaped steel bars 40. The crash barrier template 101 and the crash barrier joint shaping plate 2 are moved and disassembled by hoisting.

[0068] Example 4

[0069] Based on Example 2, such as Figure 2 , Figure 8 As shown, the construction equipment includes a top block 39. A base platform 7 is symmetrically arranged on the front and rear sides of the lower end of the top block 39. A placement plate 8 is provided at one end of the base platform 7 that is close to each other. The placement plate 8 is used to place the anti-collision guardrail template 101. A wheel 16 is provided at the lower end of the base platform 7. The rear base platform 7 is fixedly connected to a fixing plate 5. An electric telescopic rod 4 is fixedly provided at the upper end of the fixing plate 5. The electric telescopic rod 4 is fixedly connected to the rear end of the top block 39. A motor 11 is symmetrically arranged at the front and rear ends of the top block 39. A cavity 42 is provided at the lower end of the top block 39. A connecting block 6 is fixedly arranged in the middle of the lower end of the cavity 42. Threaded rods 12 are symmetrically arranged on the front and rear sides of the connecting block 6. The threaded section of the threaded rod 12 is threadedly connected to a connecting block 13. The connecting block 13 is symmetrically arranged on the front and rear sides of the cavity 42. The cylindrical section of the threaded rod 12 passes through the side end of the cavity 42 and is fixedly connected to the motor 11.

[0070] Both connecting block 6 and connecting block 13 have mounting slots at their lower ends, in which a hoist 9 is installed. The hoist 9 is fixedly connected to the hook 10.

[0071] The working principle of the above technical solution is as follows:

[0072] When the construction equipment is working, the connecting blocks 13 distributed at the front and rear correspond to the anti-collision guardrail templates 101 distributed at the front and rear, and the connecting block 6 corresponds to the anti-collision guardrail joint shaping plate 2. The hooks 10 installed on the connecting blocks 13 are connected to the through holes 102 on the anti-collision guardrail templates 101, and the hooks 10 installed on the connecting blocks 6 are connected to the lifting holes 202 on the anti-collision guardrail joint shaping plate 2. When the hoist 9 is working, it can lift the anti-collision guardrail templates 101 or the anti-collision guardrail joint shaping plate 2 connected to the hooks 10.

[0073] By setting up an electric telescopic rod 4, when the electric telescopic rod 4 extends or retracts, it can drive the top block 39 to move along the front-back direction of the base 7. When the base 7 moves along the front-back direction, it can cause the connecting block 6 and the connecting block 13 to move back and forth. When the motor 11 works, it drives the threaded rod 12 to rotate, causing the connecting block 13 to move back and forth along the cavity 3 42. This realizes the adjustment of the position of the connecting block 6 and the connecting block 13 in the front-back direction, which makes it convenient for the hook 10 installed on the connecting block 6 to lift the anti-collision guardrail template 101, and for the hook 10 installed on the connecting block 13 to lift the anti-collision guardrail joint shaping plate 2. The lower end of the base 7 is equipped with wheels 16 to facilitate the movement of construction equipment along the construction direction of the anti-collision guardrail. The placement plate 8 is set up to facilitate the placement of the anti-collision guardrail template 101.

[0074] Example 5

[0075] Based on Example 4, such as Figure 2 , Figures 8-10 As shown, the construction equipment also includes an automatic disassembly mechanism for the crash barrier module. This mechanism includes a sliding hole 46 penetrating the base 7. A fixed shell 14 is correspondingly provided in the sliding hole 46 of the front base 7. The fixed shell 14 has a cavity 21 inside. An opening 1 penetrates the rear end of the fixed shell 14, and the cavity 21 communicates with the opening 1. Fixed rods 26 are symmetrically provided on the upper and lower sides of the cavity 21. Sliding blocks 23 are symmetrically provided on the front and rear sides of the fixed rods 26. The sliding blocks 23 are slidably connected to the cavity 21 and rotatably connected to a rotating rod 27. The rotating rod 27 is rotatably connected to a base block 28. A buffer cavity 31 is provided inside the base block 28. A slider 32 is slidably provided in the buffer cavity 31. Several springs 33 are fixedly provided between the slider 32 and the buffer cavity 31. The slider 32 is fixedly connected to a connecting block 29. The third 29 penetrates the side end of the buffer cavity 31 and enters the cavity 21 to be fixedly connected to the clamping plate 30. The clamping plate 30 is used to clamp and fix the pull rod 104. The opening is slidably connected to the sliding sleeve 22. The sliding sleeve 22 is provided with a through hole 20 for the bolt 107 to pass through. The front end of the sliding sleeve 22 is fixedly connected to the mounting block 25. The upper and lower ends of the mounting block 25 are symmetrically provided with connecting blocks 24. The connecting blocks 24 are fixedly connected to the sliding block 23 on the rear side. The rear end of the sliding sleeve 22 is fixedly connected to the vertical end of the L-shaped plate 19. The horizontal end of the L-shaped plate 19 is fixedly connected to the mounting plate 15. The mounting plate 15 is fixedly connected to the threaded sleeve 18 and the telescopic rod 43. The threaded sleeve 18 is threadedly connected to the threaded rod 2. The threaded rod 2 is fixedly connected to the motor 2 17. The motor 2 17 is fixedly connected to the upper side of the front base 7. The telescopic rod 43 is fixedly connected to the lower side of the front base 7.

[0076] The automatic disassembly mechanism of the anti-collision guardrail module also includes a fixed shell 47, which is correspondingly set in the sliding hole 46 of the rear base 7. The rear end of the fixed shell 47 is fixedly connected to the fixed plate 45 through the fixed block. The fixed plate 45 is fixedly connected to the electric telescopic rod 44. The electric telescopic rod 44 is fixedly connected to the lower side of the rear base 7. The interior of the fixed shell 47 is provided with a cavity 36. The front end of the cavity 36 is rotatably provided with a bolt sleeve 34. The mating hole in the bolt sleeve 34 is correspondingly engaged with the bolt 107 at the rear of the fixed pull rod 104. The rear end of the fixed shell 47 is provided with an opening 2. The bolt sleeve 34 is fixedly provided with a gear 35. The gear 35 meshes with the gear 38. The gear 38 is fixedly connected to the motor 37. The motor 37 is fixedly set in the cavity 36.

[0077] Motor 2 17 and Motor 3 37 have the same rotation speed. The threaded hole of bolt 2 107 is exactly the same as the threaded hole of threaded sleeve 18. The threaded section of threaded rod 2 is exactly the same as the threaded section of fixed tie rod 1 104. The placement plate 8 and sliding hole are distributed on the left and right.

[0078] The working principle of the above technical solution is as follows:

[0079] The automatic disassembly mechanism automatically pulls out tie rod 104. Since tie rod 104 and the sleeve are located in concrete, pulling them out is quite difficult. The automatic disassembly mechanism eliminates the need for manual pulling, saving time and effort. When pulling out tie rod 104, the base 7 is first moved to the corresponding position of tie rod 104 in the front-back direction. Then, the electric telescopic rod 44 is retracted. The electric telescopic rod 44 drives the fixed shell 47 to move through the fixed plate 45 and the fixed block, causing the fixed shell 47 to move towards tie rod 104 until it reaches the mating hole in the bolt sleeve 34. The bolt 107 at the rear of the fixed tie rod 104 is matched accordingly. Then, the motor 17 is controlled to work, driving the threaded rod 2 to rotate. When the threaded rod 2 rotates, the threaded sleeve 18 moves towards the motor 17. The threaded sleeve 18 drives the mounting plate 15 to move. The mounting plate 15 drives the L-shaped plate 19 to move, and causes the telescopic rod 43 to retract. The L-shaped plate 19 drives the mounting block 25 to move through the sliding sleeve 22. The mounting block 25 contacts the rear end of the cavity 21, thereby driving the fixed shell 14 to move backward until the tie rod 104 enters the cavity 21 through the through hole 20.

[0080] Simultaneously, motors 17 and 37 are activated. Motor 37 drives gear 38 to rotate, which in turn drives gear 35 to rotate. Gear 35 drives bolt sleeve 34 to rotate, which in turn drives bolt 107 to rotate. At this time, motor 17 drives threaded rod 2 to rotate. As threaded rod 2 rotates, threaded sleeve 18 moves away from fixed tie rod 104. Threaded sleeve 18 drives mounting plate 15 to move. Mounting plate 15 drives sliding sleeve 22 to move via L-shaped plate 19. Sliding sleeve 22 drives sliding block 23 to move via mounting block 25, connecting block 4 24. When sliding block 23 moves, it drives rotating rod 27 to rotate. Rotating rod 27 drives base block 28 to move upward. Base block 28 moves towards fixed tie rod 104 via connecting block 3 29 and clamping plate 30. Clamping plate 30 clamps and fixes fixed tie rod 104. The spring 33 ensures that the clamping plate 30 maintains a stable clamping and fixing of fixed tie rod 104, and the spring... The telescopic performance of the clamping plate 30 allows it to clamp fixed tie rods 104 of different diameters. After the clamping plate 30 clamps and fixes the fixed tie rod 104 and the vertical end of the L-shaped plate 19 contacts the rear end of the fixed shell 14, the L-shaped plate 19 continues to move with the mounting plate 15. At this time, the fixed shell 14 continues to move, and the clamping plate 30 in the fixed shell 14 drives the fixed tie rod 104 to move. Since the threaded hole of the bolt 107 is exactly the same as the threaded hole of the threaded sleeve 18, and the threaded section of the threaded rod 107 is exactly the same as the threaded section of the fixed tie rod 104, the rotation speed of the bolt 107 is the same as the rotation speed of the threaded sleeve 18, thus ensuring that the fixed tie rod 104 can be smoothly pulled out of the concrete. The setting of the telescopic rod 43 guides the movement of the mounting plate 15 and prevents the fixed shell 14 from rotating. The placement plate 8 and the sliding hole are distributed on the left and right to avoid mutual interference between the fixed shell 14 or the fixed shell 47 and the placement plate 8.

[0081] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A method of constructing a concrete crash barrier joint, characterised by: Includes the following steps: Step 1: Install the crash barrier module (1); Step 2: Wrap the anti-collision guardrail joint shaping board (2) with foam board (3); Step 3: Place the foam board (3) wrapped with the anti-collision guardrail joint shaping board (2) into the anti-collision guardrail module (1) so that the anti-collision guardrail joint shaping board (2) is in the same position as the preset anti-collision guardrail joint position; Step 4: Use L-shaped steel bars (40) to fix the anti-collision guardrail joint shaping board (2) wrapped with foam board (3); Step 5: Pour concrete into the crash barrier module (1). After the concrete reaches the demolding strength, disassemble the crash barrier joint shaping plate (2) and the crash barrier module (1). Step 6: Remove debris from the concrete joint and seal the area around the joint with sealant to form a crash barrier joint (49). The crash barrier module (1) includes crash barrier templates (101) distributed in front and back, and the crash barrier templates (101) distributed in front and back are connected by a connecting mechanism; The construction equipment includes a top block (39). A base platform (7) is symmetrically arranged on the front and rear sides of the lower end of the top block (39). A placement plate (8) is provided at one end of each base platform (7) that is close to the other. The placement plate (8) is used to place the anti-collision guardrail template (101). Wheels (16) are provided at the lower end of the base platform (7). The rear base platform (7) is fixedly connected to a fixing plate (5). An electric telescopic rod (4) is fixedly installed at the upper end of the fixing plate (5). The electric telescopic rod (4) is fixedly connected to the rear end of the top block (39). The top block (39)... Motor 1 (11) is symmetrically provided at both ends. Cavity 3 (42) is provided at the lower end of the top block (39). Connecting block 1 (6) is fixedly provided at the middle of the lower end of cavity 3 (42). Threaded rod 1 (12) is symmetrically provided on both the front and rear sides of connecting block 1 (6). The threaded section of threaded rod 1 (12) is threadedly connected to connecting block 2 (13). Connecting block 2 (13) is symmetrically provided on both the front and rear sides of cavity 3 (42). The cylindrical section of threaded rod 1 (12) passes through the side end of cavity 3 (42) and is fixedly connected to motor 1 (11). The construction equipment also includes an automatic disassembly mechanism for the anti-collision guardrail module. The automatic disassembly mechanism for the anti-collision guardrail module includes a sliding hole (46) that runs through the base (7). A fixed shell (14) is provided in the sliding hole (46) of the front base (7). A cavity (21) is provided inside the fixed shell (14). An opening is provided through the rear end of the fixed shell (14). The cavity (21) is connected to the opening. Fixed rods (26) are symmetrically provided on the upper and lower sides of the cavity (21). Sliding blocks (23) are symmetrically provided on the front and rear sides of the fixed rods (26). The sliding blocks (23) are slidably connected to the cavity (21). The sliding blocks (23) are rotatably connected to the rotating rod (27). The rotating rod (27) is rotatably connected to the base block (28). A buffer cavity (31) is provided inside the base block (28). A slider (32) is slidably provided in the buffer cavity (31). Several springs (33) are fixed between the slider (32) and the buffer cavity (31). The slider (32) is fixedly connected to the connecting block three (29). The connecting block three (29) passes through the side end of the buffer cavity (31) and enters the cavity one (21) to be fixedly connected to the clamping plate (30). The clamping plate (30) is used to clamp and fix the pull rod one (104). The opening one is slidably connected to the sliding sleeve (22). The sliding sleeve (22) is provided with a through hole (20) for the bolt two (107) to pass through. The front end of the sliding sleeve (22) is fixedly connected to the mounting block (25). The upper and lower ends of the mounting block (25) are symmetrically provided with connecting blocks four (24). The connecting blocks four (24) are fixedly connected to the sliding block (23) on the rear side. The rear end of the sliding sleeve (22) is connected to L The vertical end of the L-shaped plate (19) is fixedly connected, the horizontal end of the L-shaped plate (19) is fixedly connected to the mounting plate (15), the mounting plate (15) is fixedly connected to the threaded sleeve (18) and the telescopic rod (43), the threaded sleeve (18) is threadedly connected to the threaded rod II, the threaded rod II is fixedly connected to the motor II (17), the motor II (17) is fixedly connected to the upper side of the front base (7), and the telescopic rod (43) is fixedly connected to the lower side of the front base (7). The automatic disassembly mechanism for the anti-collision guardrail module also includes a second fixed shell (47), which is correspondingly installed in the sliding hole (46) of the rear base (7). The rear end of the second fixed shell (47) is fixedly connected to the second fixed plate (45) via a fixing block. The second fixed plate (45) is fixedly connected to the second electric telescopic rod (44), and the second electric telescopic rod (44) is fixedly connected to the lower side of the rear base (7). The second fixed shell (47) has a second cavity (36) inside. (36) has a rotating bolt sleeve (34) at the front end. The mating hole in the bolt sleeve (34) is matched with the bolt two (107) at the rear of the fixed pull rod one (104). The rear end of the fixed shell two (47) has an opening two. The bolt sleeve (34) is fixedly provided with a gear one (35). The gear one (35) meshes with the gear two (38). The gear two (38) is fixedly connected to the motor three (37). The motor three (37) is fixedly installed in the cavity two (36). Motor 2 (17) and Motor 3 (37) have the same rotation speed. The threaded hole of Bolt 2 (107) is exactly the same as the threaded hole of Threaded Sleeve (18). The threaded section of Threaded Rod 2 is exactly the same as the threaded section of Fixed Tie Rod 1 (104). The placement plate (8) and sliding hole are distributed on the left and right.

2. The method of claim 1, wherein: The connecting mechanism includes two through holes (108) on the lower side of the front and rear anti-collision guardrail templates (101), which are distributed left and right. Two connecting plates (106) are fixed at the upper end of the front and rear anti-collision guardrail templates (101), which are distributed left and right. Two through holes (102) are provided on the connecting plates (106). The front and rear through holes (108) are matched with the tie rod (104). A sleeve is fitted on the middle cylindrical section of the tie rod (104). The threaded sections of the front and rear of the tie rod (104) are threadedly connected to the bolt (105). The front and rear through holes (102) are matched with the tie rod (103). The threaded sections of the front and rear of the tie rod (103) are threadedly connected to the bolt (107).

3. The method of claim 1, wherein: The anti-collision guardrail joint shaping plate (2) includes a shaping plate (203), and a lifting plate (201) is provided at the upper end of the shaping plate (203). A lifting hole (202) is provided through the lifting plate (201).

4. The method of claim 2, wherein: The specific steps of step 1 are as follows; Step 11: After removing the thickness of the concrete protective layer according to the outer contour dimensions of the crash barrier, hang the line and tie the steel bars of the crash barrier segments to form a front and rear distributed crash barrier steel mesh (48). Steel bars (41) are welded between the front and rear distributed crash barrier steel mesh (48). Step 12: Using construction equipment, move the front and rear distributed anti-collision guardrail templates (101) to the corresponding positions of the front and rear distributed anti-collision guardrail steel mesh (48); Step 13: Connect the front and rear guardrail templates (101) through the connecting mechanism to complete the installation of the guardrail module (1).

5. The method of claim 4, wherein: The specific steps of step 5 are as follows: Step 51: Disassemble the connecting mechanism of the front and rear guardrail templates (101) so that the guardrail templates are unconnected in the front and rear direction; Step 52: Use construction equipment to remove the anti-collision guardrail joint shaping plate (2) from the concrete joint; Step 53: Use construction equipment to dismantle the crash barrier template (101).

6. The method of claim 1, wherein: Both the lower ends of connecting block 1 (6) and connecting block 2 (13) are provided with mounting slots, in which a hoist (9) is installed, and the hoist (9) is fixedly connected to the hook (10).

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