Hydraulic self-climbing formwork system for bridge pier

Abstract

The utility model discloses a bridge pier hydraulic pressure self creeping formwork system, including template structure, template translation mechanism and template climbing mechanism, template structure includes the pouring template and the support template that sets up from top to bottom in proper order, the support template includes the upper support template and the lower support template that sets up from top to bottom in proper order, the template translation mechanism comprises a slideway supporting frame, a slideway, a translation oil cylinder and an inclined supporting rod, the slideway supporting frame is connected with the lower supporting template, the slideway is arranged on the slideway supporting frame, the translation oil cylinder is clamped in the slideway in a sliding mode, an output shaft of the translation oil cylinder is connected with the outer wall of the lower supporting template, and the two ends of the inclined supporting rod are connected with the translation oil cylinder and the pouring template respectively; the formwork jacking mechanism comprises a jacking oil cylinder supporting frame and a jacking oil cylinder, the jacking oil cylinder supporting frame is connected with the lower supporting formwork, the jacking oil cylinder is arranged on the top of the jacking oil cylinder supporting frame, and an output shaft of the jacking oil cylinder is connected with the pouring formwork. The problems of high cost, low efficiency and potential safety hazards of the existing rollover are solved.

Description

Technical Field

[0001] The utility model relates to the field of equipment for bridge construction, in particular to a hydraulic self-climbing formwork system for bridge piers. Background Art

[0002] When pouring bridge piers, a formwork turnover mechanism is used, that is, the bridge pier is poured section by section. During the formwork turnover process of the traditional steel formwork for formwork turnover, the formwork needs to be disassembled. After disassembly, a hoisting device is used to hoist it, and then the formwork turnover is completed. This not only requires high costs because hoisting equipment and operators are needed, but also there are great safety hazards during the hoisting process, and it takes too long to occupy the crane, affecting the progress of other processes. Therefore, it is necessary to improve the existing formwork turnover device. Content of the Utility Model

[0003] The purpose of the utility model is to provide a hydraulic self-climbing formwork system for bridge piers, so as to solve the problems of high cost, low efficiency and safety hazards of the existing formwork turnover.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A hydraulic self-climbing formwork system for bridge piers includes a formwork structure, a formwork translation mechanism and a formwork lifting mechanism. The formwork structure includes a casting formwork and a supporting formwork arranged in sequence from top to bottom. The supporting formwork includes an upper supporting formwork and a lower supporting formwork arranged in sequence from top to bottom. The formwork translation mechanism includes a slideway support frame, a slideway, a translation oil cylinder and a diagonal brace. The inner side of the slideway support frame is connected to the outer wall of the lower supporting formwork. The slideway is arranged at the top of the slideway support frame. The translation oil cylinder is arranged in the slideway, and the translation oil cylinder is slidably clamped in the slideway. The output shaft of the translation oil cylinder extends inwards and is connected to the outer wall of the lower supporting formwork. The lower end of the diagonal brace is connected to the translation oil cylinder, and the top of the diagonal brace is connected to the casting formwork. The formwork lifting mechanism includes a lifting oil cylinder support frame and a lifting oil cylinder. The inner side of the lifting oil cylinder support frame is connected to the outer wall of the lower supporting formwork. The lifting oil cylinder is arranged at the top of the lifting oil cylinder support frame. The output shaft of the lifting oil cylinder extends upwards and is connected to the outer wall of the casting formwork through a lifting oil cylinder fixing seat.

[0006] During construction, the height of the formwork lifted and poured each time is such that for a pier shaft with a height of 4.5 m, when the formwork for pouring and the upper support formwork + diagonal bracing rods + slideways + translation cylinders are in the ascending working state, the lifting cylinder support frame is fixed to the concreted section of the segment through the wall-piercing tie rods of the lower support formwork. The lifting cylinder support frame and the lifting cylinders are in a stressed state. After the formwork for pouring and the upper support formwork + diagonal bracing rods + slideways + translation cylinders reach the pre-pouring position, the formwork is closed. All the wall-piercing tie rods and locking angle tie rods of the upper support formwork are installed and fixed to the concreted pier shaft of the pier, and this is used as the stress point. At this time, the lifting cylinders are depressurized to reversely lift the lifting cylinder support frame + slideway support frame + lower support formwork to the position of the designed reserved tie rod holes, and the lower support formwork is accurately fixed to the concreted pier shaft through the wall-piercing tie rods. The slideways are temporarily fixedly connected to the slideway support frames, and the formwork for pouring is adjusted to the accurate position through the translation cylinders. The wall-piercing tie rods and locking angle tie rods are installed. After the concrete is poured and its strength meets the requirements, the formwork is moved backward and cleaned through the formwork translation system, the connection between the slideways and the slideway support frames is released, and the formwork for pouring and the upper support formwork + diagonal bracing rods + slideways + translation cylinders are lifted again, and the construction is cycled to complete the entire pier column.

[0007] As a further improvement of the present utility model, the formwork for pouring comprises two sections of formwork each with a height of 2.25 m.

[0008] As a further improvement of the present utility model, both the upper support formwork and the lower support formwork are formwork with a height of 0.75 m.

[0009] As a further improvement of the present utility model, the slideways and the slideway support frames are connected by pin joints.

[0010] As a further improvement of the present utility model, the lower end of the diagonal bracing rod is rotatably connected to the translation cylinder, and the top of the diagonal bracing rod is rotatably connected to the formwork for pouring through a diagonal bracing ear plate seat.

[0011] As a further improvement of the present utility model, the lower end of the lifting cylinder is rotatably connected to the lifting cylinder support frame, and the upper end of the lifting cylinder is rotatably connected to a lifting cylinder fixed seat.

[0012] As a further improvement of the present utility model, a falling prevention rod is also provided at the lifting cylinder fixed seat.

[0013] As a further improvement of the present utility model, there are 8 groups of formwork translation mechanisms and 6 groups of formwork lifting mechanisms.

[0014] After careful demonstration by the company's technical personnel, it is unanimously believed that the adoption of this hydraulic system installed on the climbing formwork can not only reduce the cumbersome installation and removal of the climbing frames of the climbing formwork, but also ensure the construction of high piers is safer and more efficient.

[0015] Compared with the prior art, the present utility model can achieve at least one of the following beneficial effects:

[0016] 1. The structure is simple. After use, the labor and material costs during mold turning are greatly reduced.

[0017] 2. Using this mechanism for mold turning has high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the present utility model after connecting the inclined bracing rod.

[0019] Figure 2 It is a schematic structural diagram of the present utility model after connecting the jacking oil cylinder.

[0020] Figure 3 It is a top view of the present utility model after being assembled. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0023] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Specific Embodiment 1:

[0028] Figure 1 、 Figure 2 、 Figure 3 shows a hydraulic self-climbing formwork system for bridge piers, including a formwork structure, a formwork translation mechanism, and a formwork jacking mechanism. The formwork structure includes a casting formwork 1 and a supporting formwork 2 arranged in sequence from top to bottom. The supporting formwork 2 includes an upper supporting formwork 21 and a lower supporting formwork 22 arranged in sequence from top to bottom. The formwork translation mechanism includes a slideway support frame 3, a slideway 4, a translation oil cylinder 5, and a diagonal brace 6. The inner side of the slideway support frame 3 is connected to the outer wall of the lower supporting formwork 22. The slideway 4 is arranged on the top of the slideway support frame 3. The translation oil cylinder 5 is arranged in the slideway 4 and is slidably clamped in the slideway 4. The output shaft of the translation oil cylinder 5 extends inwards and is connected to the outer wall of the lower supporting formwork 22. The lower end of the diagonal brace 6 is connected to the translation oil cylinder 5, and the top of the diagonal brace 6 is connected to the casting formwork 1. The formwork jacking mechanism includes a jacking oil cylinder support frame 7 and a jacking oil cylinder 8. The inner side of the jacking oil cylinder support frame 7 is connected to the outer wall of the lower supporting formwork 22. The jacking oil cylinder 8 is arranged on the top of the jacking oil cylinder support frame 7. The output shaft of the jacking oil cylinder 8 extends upwards and is connected to the outer wall of the casting formwork 1 through a jacking oil cylinder fixing seat.

[0029] During construction, the height of the formwork is jacked up and poured each time. When pouring a pier shaft with a height of 4.5m, when the formwork for pouring and the upper support formwork + diagonal brace + slideway + translation oil cylinder are in the rising working state, the jacking oil cylinder support frame is fixed on the concreted section of the joint segment through the wall-piercing tie rods of the lower support formwork. The jacking oil cylinder support frame and the jacking oil cylinder are in a stressed state. After the formwork for pouring and the upper support formwork + diagonal brace + slideway + translation oil cylinder reach the pre-pouring position, the formwork is closed. All the wall-piercing tie rods and corner locking tie rods of the upper support formwork are installed and fixed on the concreted pier shaft, and this is used as the stress point. At this time, the jacking oil cylinder returns oil to lift the jacking oil cylinder support frame + slideway support frame + lower support formwork in the reverse direction to the position of the designed reserved tie rod holes, and the lower support formwork is accurately fixed on the concreted pier shaft through the wall-piercing tie rods. The slideway is temporarily fixedly connected to the slideway support frame. The formwork for pouring is adjusted to the accurate position through the translation oil cylinder. The wall-piercing tie rods and corner locking tie rods are installed. After the concrete is poured and the strength meets the requirements, the formwork is moved backward and cleaned through the formwork translation system. The connection between the slideway and the slideway support frame is released. The formwork for pouring and the upper support formwork + diagonal brace + slideway + translation oil cylinder are jacked up again, and the construction is cycled to complete the entire pier column. Specific Embodiment 2:

[0031] This embodiment further describes the formwork for pouring 1 on the basis of Specific Embodiment 1. The formwork for pouring 1 includes two sections of formwork with a height of 2.25m. Specific Embodiment 3:

[0033] This embodiment further describes the upper support formwork 21 on the basis of Specific Embodiment 1. Both the upper support formwork 21 and the lower support formwork 22 are formwork with a height of 0.75m. Specific Embodiment 4:

[0035] This embodiment further describes the slideway 4 on the basis of Specific Embodiment 1. The slideway 4 is connected to the slideway support frame 3 through a pin. Specific Embodiment 5:

[0037] This embodiment further describes the diagonal brace 6 on the basis of Specific Embodiment 1. The lower end of the diagonal brace 6 is rotatably connected to the translation oil cylinder 5, and the top of the diagonal brace 6 is rotatably connected to the formwork for pouring 1 through a diagonal brace ear plate seat. Specific Embodiment 6:

[0039] This embodiment further describes the jacking oil cylinder 8 on the basis of Specific Embodiment 1. The lower end of the jacking oil cylinder 8 is rotatably connected to the jacking oil cylinder support frame 7, and the upper end of the jacking oil cylinder 8 is rotatably connected to the jacking oil cylinder fixed seat. Specific Embodiment 7:

[0041] This embodiment further describes the jacking oil cylinder fixing seat on the basis of the specific embodiment 6, and a falling prevention rod is also provided at the jacking oil cylinder fixing seat. Specific embodiment 8:

[0043] This embodiment further describes the template translation mechanism on the basis of the specific embodiment 1. There are 8 groups of the template translation mechanism and 6 groups of the template jacking mechanism.

[0044] After careful demonstration by the company's technical personnel, it is unanimously believed that installing this hydraulic system on the climbing formwork can not only reduce the cumbersome installation and disassembly of the climbing frame of the climbing formwork, but also ensure the safety and efficiency of the construction of high piers.

[0045] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A hydraulic self-climbing formwork system for bridge piers, characterized in that: It includes a formwork structure, a formwork translation mechanism, and a formwork jacking mechanism. The formwork structure includes a casting formwork (1) and a supporting formwork (2) arranged successively from top to bottom. The supporting formwork (2) includes an upper supporting formwork (21) and a lower supporting formwork (22) arranged successively from top to bottom. The formwork translation mechanism includes a slideway support frame (3), a slideway (4), a translation oil cylinder (5), and a diagonal brace (6). The inner side of the slideway support frame (3) is connected to the outer wall of the lower supporting formwork (22). The slideway (4) is arranged at the top of the slideway support frame (3). The translation oil cylinder (5) is arranged in the slideway (4), and the translation oil cylinder (5) is slidably clamped in the slideway (4). The output shaft of the translation oil cylinder (5) extends inwards and is connected to the outer wall of the lower supporting formwork (22). The lower end of the diagonal brace (6) is connected to the translation oil cylinder (5), and the top of the diagonal brace (6) is connected to the casting formwork (1). The formwork jacking mechanism includes a jacking oil cylinder support frame (7) and a jacking oil cylinder (8). The inner side of the jacking oil cylinder support frame (7) is connected to the outer wall of the lower supporting formwork (22). The jacking oil cylinder (8) is arranged at the top of the jacking oil cylinder support frame (7). The output shaft of the jacking oil cylinder (8) extends upwards and is connected to the outer wall of the casting formwork (1) through a jacking oil cylinder fixing seat.

2. The hydraulic self-climbing formwork system for bridge piers according to claim 1, wherein: The casting formwork (1) includes two sections of formwork with a height of 2.25 m.

3. The hydraulic self-climbing formwork system for bridge piers according to claim 1, wherein: Both the upper supporting formwork (21) and the lower supporting formwork (22) are formwork with a height of 0.75 m.

4. The hydraulic self-climbing formwork system for bridge piers according to claim 1, wherein: The slideway (4) is connected to the slideway support frame (3) through a pin.

5. The hydraulic self-climbing formwork system for bridge piers according to claim 1, characterized in that: The lower end of the diagonal brace (6) is rotatably connected to the translation oil cylinder (5), and the top of the diagonal brace (6) is rotatably connected to the casting formwork (1) through a diagonal brace ear plate seat.

6. The hydraulic self-climbing formwork system for bridge piers according to claim 1, characterized in that: The lower end of the jacking oil cylinder (8) is rotatably connected to the jacking oil cylinder support frame (7), and the upper end of the jacking oil cylinder (8) is rotatably connected to the jacking oil cylinder fixing seat.

7. The hydraulic self-climbing formwork system for bridge piers according to claim 1, characterized in that: A falling prevention rod is also provided at the jacking oil cylinder fixing seat.

8. The hydraulic self-climbing formwork system for bridge piers according to claim 1, characterized in that: There are 8 groups of the formwork translation mechanism and 6 groups of the formwork jacking mechanism.

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