Bridge substructure concrete curing apparatus and method

Abstract

The application relates to a bridge substructure concrete curing device and method, which comprises a guide rail, a mounting plate, a driving mechanism, a lifting mechanism, a spraying mechanism and a film covering mechanism. The guide rail is annular and horizontally sleeved outside a bridge pier. The mounting plate is slidingly arranged on the guide rail. The lifting mechanism is arranged on the bridge pier and connected with the guide rail. The lifting mechanism is used for driving the guide rail to move in the vertical direction. The driving mechanism is arranged on the mounting plate. The driving mechanism is used for driving the mounting plate to move along the guide rail. The spraying mechanism and the film covering mechanism are both arranged on the mounting plate. The spraying mechanism is used for spraying the surface of the bridge pier. The film covering mechanism is used for laying a plastic film on the surface of the bridge pier. The application has the effect of facilitating comprehensive maintenance of the bridge pier.

Description

Technical Field

[0001] This application relates to the field of concrete curing technology, and in particular to a device and method for curing concrete in bridge substructures. Background Technology

[0002] The substructure of a bridge typically consists of piers, abutments, and foundations. During the current construction process, cast-in-place piers and abutments require curing after the cement has set. Maintaining the surface of the concrete is crucial to ensure proper hydration and hardening of the cement. If curing is not performed promptly, the hydration reaction will cease once the concrete surface loses water. Simultaneously, surface drying and shrinkage will cause cracks in the concrete structure under shrinkage stress, compromising its safety and normal use.

[0003] The common method for curing concrete is to use manual water spraying. Bridge abutments are located at both ends of the bridge and are connected to the roadbed, making manual curing convenient. However, bridge piers have a large outer diameter and height, making it impossible to fully cure them manually. This inevitably leads to gaps in the curing process, which ultimately affects the engineering quality and service life of the bridge piers. Summary of the Invention

[0004] To facilitate comprehensive maintenance of bridge piers, this application provides a concrete curing device for the substructure of bridges.

[0005] On the one hand, the concrete curing equipment for bridge substructure provided in this application adopts the following technical solution:

[0006] A concrete curing device for bridge substructure includes a guide rail, a mounting plate, a drive mechanism, a lifting mechanism, a spraying mechanism, and a film covering mechanism. The guide rail is annular and horizontally sleeved on the outside of the bridge pier. The mounting plate is slidably mounted on the guide rail. The lifting mechanism is mounted on the bridge pier and connected to the guide rail, and is used to drive the guide rail to move vertically. The drive mechanism is mounted on the mounting plate and is used to drive the mounting plate to move along the guide rail. Both the spraying mechanism and the film covering mechanism are mounted on the mounting plate. The spraying mechanism is used to spray water onto the surface of the bridge pier, and the film covering mechanism is used to lay a plastic film on the surface of the bridge pier.

[0007] Preferably, the guide rail is composed of multiple arc-shaped segments connected together.

[0008] Preferably, the driving mechanism includes a drive motor and a gear, a rack is arranged around the guide rail, the drive motor is mounted on the mounting plate, the gear is coaxially mounted on the output shaft of the drive motor, and the gear meshes with the rack.

[0009] Preferably, the lifting mechanism includes winches and pull ropes. Multiple winches are arranged around the top of the bridge pier, and pull ropes are wound around each of the multiple winches. The lower ends of the multiple pull ropes are connected to the guide rails.

[0010] Preferably, multiple support rods are arranged around the top of the bridge pier, with the ends of the support rods extending outside the bridge pier. Cables are connected to the support rods, and the multiple cables pass through guide rails and are connected to the ground.

[0011] Preferably, the spraying mechanism includes a water tank, atomizing nozzles, and a water pump. The water tank is mounted on a mounting plate, and multiple atomizing nozzles are arranged on the mounting plate facing the bridge pier. The water pump is located on top of the water tank, and the water tank, atomizing nozzles, and water pump are connected by a water supply pipe.

[0012] Preferably, the film coating mechanism includes a feeding box, a guide rod, and a film-applying roller. The feeding box is located behind the water tank in the direction of movement of the mounting plate. A discharge slit for outputting plastic film is provided on the feeding box. A roller for mounting plastic film rolls is rotatably arranged inside the feeding box. One end of the guide rod is set on the mounting plate, and the other end extends away from the mounting plate toward the bridge pier. A film-applying roller is vertically rotatably arranged at the end of the guide rod.

[0013] Preferably, the guide rod is rotatably mounted on the mounting plate, and the mounting plate is provided with a tension spring. The other end of the tension spring is connected to the guide rod, and the tension spring causes the end of the film-applying roller to always have a tendency to rotate toward the bridge pier.

[0014] On the other hand, this application provides a method for curing concrete in the substructure of a bridge, comprising the following steps:

[0015] Install the mounting plate onto the guide rail, and then install the guide rail onto the outside of the bridge pier.

[0016] Install the lifting mechanism and connect it to the guide rail;

[0017] Install the spraying structure and coating mechanism onto the mounting plate, and then install the mounting plate onto the guide rail;

[0018] The mounting plate is driven to move along the guide rail by the drive mechanism, and the guide rail is lifted by the lifting mechanism. During the movement of the mounting plate, the spraying mechanism sprays the bridge pier and the film covering mechanism covers the sprayed part.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. After the bridge pier is poured, it needs to be cured. At this time, the guide rail is installed on the outside of the bridge pier, the lifting mechanism is installed on the top of the bridge pier, and the lifting mechanism is connected to the guide rail. The mounting plate is slidably installed on the guide rail. The mounting plate is driven to move along the guide rail by the drive mechanism, and the guide rail is lifted by the lifting mechanism. During the movement of the mounting plate, the spraying mechanism sprays the surface of the bridge pier, thereby spraying the entire surface of the bridge pier and achieving comprehensive spray curing of the bridge pier.

[0021] 2. After watering the concrete surface for curing, it is best to apply a layer of plastic film to prevent the concrete surface from evaporating too quickly and failing to achieve a good curing effect. However, due to the height of the bridge piers, plastic film is generally not applied during the curing of bridge piers. By using the curing equipment in this embodiment, the film covering mechanism applies plastic film to the surface of the bridge pier during the movement of the installation plate, thereby improving the curing effect of the bridge piers. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0023] Figure 2 This is a schematic diagram used to illustrate the guide rail structure in the embodiments of this application.

[0024] Figure 3 This is a schematic diagram used to illustrate the drive mechanism in the embodiments of this application.

[0025] Figure 4 This is a schematic diagram illustrating the coating mechanism in the embodiments of this application.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Guide rail; 11. Arc-shaped segment; 12. Clip block; 13. Slot; 14. Fixing bolt; 2. Mounting plate; 3. Drive mechanism; 31. Drive motor; 32. Gear; 33. Rack; 4. Lifting mechanism; 41. Winch; 42. Pull rope; 5. Spraying mechanism; 51. Water tank; 52. Atomizing nozzle; 53. Water pump; 54. Water supply pipe; 55. Mounting frame; 6. Film coating mechanism; 61. Feed box; 62. Guide rod; 63. Film coating roller; 64. Plastic film roll; 65. Roller shaft; 66. Tension spring; 7. Support rod; 71. Cable; 72. Anchor bolt. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0029] This application discloses a concrete curing device for bridge substructures, referring to... Figure 1 and Figure 2A concrete curing device for bridge substructure includes a guide rail 1, a mounting plate 2, a drive mechanism 3, a lifting mechanism 4, a spraying mechanism 5, and a film covering mechanism 6. The guide rail 1 is annular, with its inner diameter larger than the outer diameter of the bridge pier, and is horizontally and coaxially fitted around the bridge pier. The mounting plate 2 is slidably mounted on the guide rail 1 and located inside it. The lifting mechanism 4 is mounted on the top of the bridge pier and connected to the guide rail 1, driving the guide rail 1 to move vertically outside the bridge pier. The drive mechanism 3 is mounted on the mounting plate 2, connected to the guide rail 1, and used to drive the mounting plate 2 to move along the guide rail 1. Both the spraying mechanism 5 and the film covering mechanism 6 are mounted on the mounting plate 2. The spraying mechanism 5 sprays water onto the surface of the bridge pier, and the film covering mechanism 6 lays a plastic film on the surface of the bridge pier.

[0030] After the bridge pier is poured, it needs to be cured. At this time, guide rail 1 is installed outside the pier, lifting mechanism 4 is installed at the top of the pier and connected to guide rail 1, and mounting plate 2 is slidably installed onto guide rail 1. The mounting plate 2 is driven to move along guide rail 1 by drive mechanism 3, and the guide rail 1 is lifted by lifting mechanism 4. During the movement of mounting plate 2, spraying mechanism 5 sprays the surface of the pier, thus achieving comprehensive spray curing. Simultaneously, after water curing the concrete surface, it is best to apply a layer of plastic film to prevent the concrete surface moisture from evaporating too quickly and failing to achieve a good curing effect. However, due to the height and vertical position of the bridge pier, plastic film is generally not used during current pier curing. By using the curing equipment in this embodiment, the film-covering mechanism 6 applies a plastic film to the pier surface during the movement of mounting plate 2, thereby improving the curing effect of the pier.

[0031] Reference Figure 2 The guide rail 1 is composed of multiple arc-shaped segments 11 connected together. One end of each arc-shaped segment 11 is equipped with a snap-fit ​​block 12, and the other end has a slot 13 that matches the snap-fit ​​block 12. Multiple arc-shaped segments 11 are connected and spliced ​​into a single unit through the snap-fit ​​joints of the snap-fit ​​blocks 12 and slots 13. Simultaneously, each arc-shaped segment 11 has a fixing bolt 14 passing through both ends, vertically through the snap-fit ​​joints of two arc-shaped segments 11, thus connecting the two segments into a single unit. The guide rail 1, composed of multiple arc-shaped segments 11, facilitates installation and disassembly, as well as handling and transportation.

[0032] Reference Figure 2 and Figure 3The guide rail 1 has an I-shaped cross-section. A connecting plate is provided on the side of the mounting plate 2 facing the guide rail 1. The connecting plate has a groove with a convex cross-section. The mounting plate 2 is slidably mounted on the guide rail 1 through the snap-fit ​​between the connecting plate and the guide rail 1. The drive mechanism 3 includes a drive motor 31 and a gear 32. A rack 33 is mounted around the guide rail 1 and located inside the outer wing plate of the guide rail 1. The drive motor 31 is fixedly mounted on the mounting plate 2, and the gear 32 is coaxially fixedly mounted on the output shaft of the drive motor 31, and the gear 32 meshes with the rack 33.

[0033] Start the drive motor 31, which drives the gear 32 to rotate. Since the gear 32 meshes with the rack 33, the rotation of the gear 32 will drive the mounting plate 2 to move along the rack 33, thereby achieving the effect of driving the mounting plate 2 to move along the guide rail 1.

[0034] Reference Figure 1 The lifting mechanism 4 includes winches 41 and pull ropes 42. Multiple winches 41 are installed around the top of the bridge pier, with equal spacing between them and their ends extending beyond the bridge pier. The pull ropes 42 are connected to and wound around the winches 41, with their lower ends extending vertically downwards and connecting to the guide rail 1. Simultaneous activation of the multiple winches 41 winds up or unwinds the pull ropes 42, thereby driving the guide rail 1 to move vertically, facilitating lifting and lowering of the guide rail 1.

[0035] Reference Figure 1 Multiple support rods 7 are installed around the top of the bridge pier. These support rods 7 are fixedly connected to the reinforcing steel bars at the top of the pier using clamps and other fasteners. The ends of the support rods 7 extend outside the pier, and are connected to cables 71. All cables 71 extend vertically downwards and pass through the guide rail 1, with anchor rods 72 fixedly connected to their ends. The cables 71 are tightened and fixed to the anchor rods 72. These taut cables 71 serve to position the guide rail 1, preventing excessive horizontal swaying during lifting and lowering, which could affect the normal operation of the maintenance equipment.

[0036] Reference Figure 3 and Figure 4The spraying mechanism 5 includes a water tank 51, atomizing nozzles 52, and a water pump 53. The water tank 51 is fixedly installed on the side of the mounting plate 2 facing the pier. A C-shaped mounting bracket 55 is installed on the mounting plate 2 and on the side of the water tank 51. The mounting bracket 55 extends towards the pier. Multiple atomizing nozzles 52 are installed on the vertical section of the mounting bracket 55 away from the mounting plate 2. The water pump 53 is located at the top of the water tank 51. The input end of the water pump 53 is connected to a water inlet pipe. The other end of the water inlet pipe passes through the water tank 51 and extends to the bottom of the water tank 51. A water supply pipe 54 is installed between the output end of the water pump 53 and the multiple atomizing nozzles 52.

[0037] When watering the surface of the bridge pier for maintenance, water pump 53 from water tank 51 is pumped into water pipe 54. Water in water pipe 54 is then sprayed onto the surface of the bridge pier through atomizing nozzle 52, thus achieving watering maintenance of the bridge pier surface. At the same time, through the combined action of lifting mechanism and drive mechanism 3, the device installed on the outside of the bridge pier can be spirally raised, thereby spraying water evenly on the surface of the bridge pier, achieving the effect of comprehensive maintenance of the bridge pier surface.

[0038] Reference Figure 3 and Figure 4 The film coating mechanism 6 includes a feeding box 61, guide rods 62, and film-applying rollers 63. The feeding box 61 is mounted on the mounting plate 2 and is located behind the water tank 51 in the direction of movement of the mounting plate 2. The feeding box 61 is vertically mounted on the mounting plate 2. Bearing seats are installed on the inner top and bottom walls of the feeding box 61. A roller shaft 65 for mounting plastic film rolls 64 is rotatably mounted inside the feeding box 61 via the bearing seats. A discharge slot for discharging plastic film is vertically opened on the side of the feeding frame away from the guide rail 1. The guide rods 62 are rectangular rods, and two guide rods 62 are mounted on the mounting plate 2 and are parallel to each other. The other end of the guide rods 62 extends towards the bridge pier, and the end of the guide rods 62 is set away from the water tank 51. A film-applying roller 63 is vertically rotatably mounted between the ends of the two guide rods 62. A flexible sleeve, which is made of sponge or cloth, is sleeved on the surface of the film-applying roller 63. One end of the guide rod 62 near the mounting plate 2 is rotatably connected to the mounting plate 2. Two tension springs 66 are also provided on the mounting plate 2, corresponding to the two guide rods 62. The other end of the tension springs 66 is connected to the guide rods 62. The tension springs 66 make the end of the guide rods 62 always tend to rotate towards the pier. That is, the tension springs 66 make the film-applying roller 63 always tend to be in contact with the surface of the pier. The flexible sleeve on the surface of the film-applying roller 63 ensures that the film-applying roller 63 will not damage the pier during the rolling process on the pier surface.

[0039] When applying a film to the surface of the bridge pier, a plastic film roll 64 is installed into the feeding box 61, and the end of the plastic film roll 64 is pulled out from the discharge slot in the feeding box 61. The plastic film is then wrapped around the film-applying roller 63 near the side of the bridge pier, so that the film-applying roller 63 presses the plastic film tightly onto the surface of the bridge pier and fixes the end of the plastic film to the bottom of the bridge pier. Since the end of the plastic film is fixed to the bottom of the bridge pier, as the mounting plate 2 moves, the plastic film will be continuously pulled out from the feeding box 61 and applied to the bridge pier by the film-applying roller 63. This process of applying a film to the surface of the bridge pier after spraying water results in better maintenance of the bridge pier.

[0040] The implementation principle of the concrete curing equipment for the substructure of a bridge according to this application embodiment is as follows: the mounting plate 2 is slidably installed onto the guide rail 1, the guide rail 1 is spliced ​​and installed outside the pier, the lifting mechanism 4 is installed on the top of the pier, and the lifting mechanism 4 is connected to the guide rail 1; the mounting plate 2 is driven to move along the guide rail 1 by the driving mechanism 3, and the guide rail 1 is lifted by the lifting mechanism 4. During the movement of the mounting plate 2, the spraying mechanism 5 sprays the surface of the pier, thereby spraying the surface of the pier comprehensively and realizing the spray curing of the pier; at the same time, during the movement of the mounting plate 2, the film covering mechanism 6 applies a plastic film to the surface of the pier, thereby improving the curing effect of the pier.

[0041] This application also discloses a method for curing concrete in the substructure of a bridge, including the following steps:

[0042] Install the mounting plate 2 onto one of the arc-shaped segments 11 of the guide rail 1;

[0043] Multiple arc-shaped segments 11 are connected end to end outside the bridge pier to form a ring guide rail 1, which is then fitted onto the outside of the bridge pier.

[0044] Multiple winches 41 are installed on the top of the bridge piers, and the pull ropes 42 hanging from the winches 41 are fixedly connected to the guide rails 1.

[0045] Multiple winches 41 are started simultaneously, lifting the guide rail 1, so that the entire maintenance equipment is lifted off the ground;

[0046] Multiple support rods 7 are installed on the top of the pier. The cable 71 hanging from the support rod 7 is passed through the guide rail 1. Anchor rods 72 are installed on the ground opposite to the cable 71. The cable 71 is tightened and fixed on the anchor rods 72.

[0047] Fill the water tank 51 with water, install the plastic film roll 64 into the feeding box 61, pull the end of the plastic film out of the feeding box 61, and fix the end of the plastic film to the bottom of the bridge pier after wrapping it around the film-applying roller 63.

[0048] Start the drive motor 31 and simultaneously start multiple winches 41, so that the mounting plate 2 is lifted in a spiral upward state outside the pier. Start the water pump 53 to complete the water spraying and curing of the pier surface during the lifting process. At the same time, as the mounting plate 2 moves, the plastic film is continuously pulled out from the material box 61 and adhered to the pier surface.

[0049] Finally, it should be noted that in the description of this application, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A concrete curing device for bridge substructure, characterized in that: The bridge structure includes a guide rail (1), a mounting plate (2), a drive mechanism (3), a lifting mechanism (4), a spraying mechanism (5), and a film covering mechanism (6). The guide rail (1) is annular and horizontally fitted around the bridge pier. The mounting plate (2) is slidably mounted on the guide rail (1). The lifting mechanism (4) is mounted on the bridge pier and connected to the guide rail (1), and is used to drive the guide rail (1) to move vertically. The drive mechanism (3) is mounted on the mounting plate (2) and is used to drive the guide rail (1) to move vertically. The movable mounting plate (2) moves along the guide rail (1); the spraying mechanism (5) and the film covering mechanism (6) are both set on the mounting plate (2). The spraying mechanism (5) is used to spray the surface of the bridge pier, and the film covering mechanism (6) is used to lay a plastic film on the surface of the bridge pier. The spraying mechanism (5) includes a water tank (51), atomizing nozzles (52), and a water pump (53). The water tank (51) is set on the mounting plate (2), and multiple atomizing nozzles (52) are set on the mounting plate (2) facing the bridge pier. A water pump (53) is installed on top of a water tank (51). The water tank (51), atomizing nozzle (52), and water pump (53) are connected by a water supply pipe (54). The film coating mechanism (6) includes a feeding box (61), a guide rod (62), and a film coating roller (63). The feeding box (61) is located behind the water tank (51) in the moving direction of the mounting plate (2). A discharge slit for plastic film output is provided on the feeding box (61). A plastic film roll (64) is rotatably installed inside the feeding box. The roller (65) has a guide rod (62) with one end set on the mounting plate (2) and the other end extending away from the mounting plate (2) toward the pier. The end of the guide rod (62) is vertically rotatably equipped with a film-applying roller (63). The guide rod (62) is rotatably set on the mounting plate (2). The mounting plate (2) is equipped with a tension spring (66). The other end of the tension spring (66) is connected to the guide rod (62). The tension spring (66) makes the end of the film-applying roller (63) always have a tendency to rotate toward the pier.

2. The bridge substructure concrete curing equipment according to claim 1, characterized in that: The guide rail (1) is composed of multiple arc-shaped segments (11) connected together.

3. The concrete curing equipment for bridge substructure according to claim 1, characterized in that: The drive mechanism (3) includes a drive motor (31) and a gear (32). A rack (33) is arranged around the guide rail (1). The drive motor (31) is mounted on the mounting plate (2). The gear (32) is coaxially mounted on the output shaft of the drive motor (31). The gear (32) meshes with the rack (33).

4. The bridge substructure concrete curing equipment according to claim 1, characterized in that: The lifting mechanism (4) includes a winch (41) and a pull rope (42). Multiple winches (41) are arranged around the top of the bridge pier. The pull rope (42) is wound around each of the multiple winches (41). The lower ends of the multiple pull ropes (42) are connected to the guide rail (1).

5. The concrete curing equipment for bridge substructure according to claim 1, characterized in that: Multiple support rods (7) are arranged around the top of the bridge pier. The ends of the support rods (7) extend to the outside of the bridge pier. Cables (71) are connected to the support rods (7). The multiple cables (71) pass through the guide rail (1) and are connected to the ground.

6. A method for curing concrete substructure of a bridge based on the curing equipment described in any one of claims 1-5, characterized in that, Includes the following steps: Install the mounting plate (2) onto the guide rail (1), and then install the guide rail (1) onto the outside of the bridge pier; Install the lifting mechanism (4) and connect the lifting mechanism (4) to the guide rail (1); Install the spraying structure and the film covering mechanism (6) onto the mounting plate (2), and install the mounting plate (2) onto the guide rail (1); The mounting plate (2) is driven to move along the guide rail (1) by the drive mechanism (3), and the guide rail (1) is lifted by the lifting mechanism (4). During the movement of the mounting plate (2), the spraying mechanism (5) sprays the pier and the film covering mechanism (6) covers the sprayed part.

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