A bracket for a pier cap form

Abstract

The utility model relates to bridge pier bent cap construction technical field, concretely is a kind of bracket of bridge pier bent cap formwork.The device includes the support plate for supporting bent cap formwork, the hoop for being tightly gripped on bridge pier, the center column fixedly connected on support plate, multiple groups of inhaul cables being arranged between center column and support plate, and the support assembly for supporting support plate is arranged on hoop;Along the length direction of center column, inhaul cable is symmetrically spaced arrangement, the upper end of inhaul cable is vertically spaced connection on center column, and the lower end of inhaul cable is transversely spaced connection on support plate.The device is symmetrically spaced arrangement by inhaul cable along center column vertically, support plate transversely, and load is evenly transmitted to center column and hoop, avoid local stress concentration, inhaul cable tension is adjustable, and maintenance is convenient: by means of "sleeve + nut" structure, single inhaul cable tension can be individually fine-tuned, adapt to construction load fluctuation, and when overhauling, fault inhaul cable can be individually replaced, without integral disassembly.

Description

Technical Field

[0001] This utility model relates to the field of bridge pier cap beam construction technology, specifically a bracket for bridge pier cap beam formwork. Background Technology

[0002] A cap beam is a beam installed on top of a bridge pier to support, distribute, and transfer the load of the superstructure. Its main function is to support the superstructure and transfer all the load to the substructure. In bridge engineering, cap beams are mainly constructed by erecting formwork and then casting on site. However, the existing formwork supports are not adequately supported at both ends, resulting in limited load-bearing capacity, which is insufficient to support the cap beam mold.

[0003] Chinese patent CN201921419982.2 discloses "A Bridge Cap Beam Template Support", publication number CN210946508U. This device has U-shaped support fixing seats connected to the left and right sides of the central support plate, which are fixed by support fixing bolts penetrating the pier columns. The upper end of the U-shaped support fixing seats is connected to a template support beam via an I-beam column. A pair of suspension columns are connected to the front and rear sides of the central support plate. The top of the suspension columns is connected to the top of the template support beam via a connecting cable and a locking buckle, providing suspension support for the extension beam of the template support beam. However, this device has some drawbacks: the upper ends of multiple cables are fixed to the top of the suspension columns, causing the tension of all cables to concentrate at this fixed end. Some cables are prone to tensile deformation, wire breakage, or even breakage, while others are not fully stressed and cannot play a supporting role, threatening the overall stability of the support. Utility Model Content

[0004] To address the problems of the prior art, this utility model provides a bracket for a bridge pier cap beam formwork. Multiple sets of cables are arranged symmetrically and dispersedly, connecting the upper and lower structures in multiple sets of diagonal bracing. This can evenly distribute the upper load to the lower support structure, avoid local stress concentration, and make the overall structure more evenly stressed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bracket for a bridge pier cap beam formwork, comprising a support plate for supporting the cap beam formwork, a clamp for fastening it to the bridge pier, a central column fixedly connected to the support plate, and multiple sets of cables disposed between the central column and the support plate. The clamp is provided with a support component for supporting the support plate. Along the length direction of the central column, the cables are arranged symmetrically at intervals, with the upper ends of the cables vertically and at intervals connected to the central column, and the lower ends of the cables horizontally and at intervals connected to the support plate.

[0006] With the above structural design, the cables are symmetrically arranged vertically along the central column and horizontally along the support plate. This allows the load of the cap beam formwork (self-weight + concrete pouring load) borne by the support plate to be evenly transferred to the central column through multiple sets of cables, avoiding support plate deformation or cable overload caused by local stress concentration.

[0007] Preferably, the cable includes a first cable, a second cable, and a third cable symmetrically arranged on the central column. The upper end of the first cable is fixedly connected to a first sleeve, the upper end of the second cable is fixedly connected to a second sleeve, and the upper end of the third cable is fixedly connected to a third sleeve. The first sleeve, the second sleeve, and the third sleeve are all sleeved on the central column. A first nut is provided below the first sleeve, a second nut is provided below the second sleeve, and a third nut is provided below the third sleeve. The first nut, the second nut, and the third nut are all threaded onto the central column.

[0008] With the above structural design, the vertical position of each cable group can be adjusted individually through the sliding fit between the sleeve and the central column and the threaded locking of the nut, thereby fine-tuning the cable tension and ensuring that the force on multiple cable groups is balanced, adapting to the slight changes in load distribution during construction; the threaded adjustment structure facilitates quick assembly during construction and subsequent maintenance (for example, when replacing a single cable, there is no need to disassemble the whole structure, only the corresponding nut needs to be loosened).

[0009] Preferably, the clamp includes a left arc-shaped plate and a right arc-shaped plate. The ends of the left arc-shaped plate are all fixedly connected to a left fixing plate, and the ends of the right arc-shaped plate are all fixedly connected to a right fixing plate. Fixing bolts are passed through the left fixing plate, and through holes matching the fixing bolts are opened on the right fixing plate. Anti-slip pads are fixedly connected to the inner walls of the left and right arc-shaped plates.

[0010] With the above structural design, the arc-shaped plate conforms to the shape of the bridge pier, and a rigid connection is achieved by fixing bolts passing through the through holes of the left / right fixing plates. The bolt preload can be adjusted according to the diameter of the bridge pier to ensure that the clamp does not loosen under load. The anti-slip pad on the inner wall (such as rubber material) increases the friction with the surface of the bridge pier, preventing the bracket from sliding vertically or horizontally due to vibration (such as the impact of concrete pouring) or lateral force (such as wind), thus ensuring construction safety. The split arc-shaped plate design can adjust the opening and closing degree with bolts, making it compatible with circular or irregularly shaped bridge piers of different diameters within a certain range, thus enhancing its versatility.

[0011] Preferably, the support assembly includes multiple diagonal bracing columns disposed between the clamp and the support plate. The upper end of each diagonal bracing column is inserted into an upper positioning block, and an upper positioning bolt passes through the upper positioning block. An upper positioning hole matching the upper positioning bolt is opened at the upper end of each diagonal bracing column. The upper positioning block is fixedly connected to the support plate. The lower end of each diagonal bracing column is inserted into a lower positioning block, and a lower positioning bolt passes through the lower positioning block. A lower positioning hole matching the lower positioning bolt is opened at the lower end of each diagonal bracing column. Lower positioning blocks are fixedly connected to both the left and right arc-shaped plates.

[0012] With the above structural design, the upper / lower positioning blocks are engaged with the positioning holes of the diagonal brace column through bolts to ensure the accurate installation angle of the diagonal brace column (ensuring force efficiency). At the same time, the bolt connection facilitates quick assembly and disassembly during construction, improving turnover efficiency.

[0013] Preferably, a lifting column is provided below both the left and right arc-shaped plates, and a card interface matching the upper end of the lifting column is provided on the left and right arc-shaped plates.

[0014] With the above structural design, the rising column is directly supported on the ground or foundation, providing additional vertical support points for the clamp. It is especially suitable for scenarios where the pier is high and the clamp alone is insufficient, reducing the local pressure at the contact point between the clamp and the pier.

[0015] Preferably, one end of the support plate is hinged to a lateral support column, and the upper end of the lateral support column is hinged to a lateral support plate.

[0016] With the above structural design, the lateral support plate can abut against the side of the cap beam formwork to resist the lateral pressure (such as the lateral thrust of fluid concrete) on the formwork during concrete pouring, prevent the formwork from expanding or shifting, and ensure the dimensional accuracy of the cap beam; the two hinged structures allow the lateral support columns and support plates to be flexibly adjusted according to the side angle of the formwork, improving the adaptability to the cap beam formwork.

[0017] Compared with the prior art, the beneficial effects of this utility model are: This device distributes the load evenly to the central column and clamps through symmetrically spaced cables arranged vertically along the central column and laterally along the support plate, avoiding localized stress concentration. It is suitable for heavy-duty and high-altitude cap beam formwork support. The cable tension is adjustable, making maintenance convenient: with the "sleeve + nut" structure, the tension of a single cable can be finely adjusted individually to adapt to fluctuations in construction loads. During maintenance, faulty cables can be replaced individually without overall disassembly, improving turnover efficiency. The clamps are highly versatile, securely fastened to prevent displacement, and the anti-slip pads increase friction to prevent slippage. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2This is a partially enlarged structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the structure of the clamp of this utility model. Detailed Implementation

[0019] Please see Figure 1 , Figure 2 , Figure 3 This utility model provides a technical solution: a bracket for a bridge pier cap beam formwork, including a support plate 1 for supporting the cap beam formwork, a clamp 2 for fastening to the bridge pier, a central column 3 fixedly connected to the support plate 1, and multiple sets of cables 4 arranged between the central column 3 and the support plate 1. Two sets of central columns 3 are arranged symmetrically on both sides of the support plate 1. The clamp 2 is provided with a support component for supporting the support plate 1. Along the length direction of the central column 3, the cables 4 are arranged symmetrically at intervals. The upper end of the cables 4 is vertically and intermittently connected to the central column 3, and the lower end of the cables 4 is horizontally and intermittently connected to the support plate 1.

[0020] The cable 4 includes a first cable 41, a second cable 42, and a third cable 43 symmetrically arranged on the central column 3. The upper end of the first cable 41 is fixedly connected to the first sleeve 51, the upper end of the second cable 42 is fixedly connected to the second sleeve 52, and the upper end of the third cable 43 is fixedly connected to the third sleeve 53. The first sleeve 51, the second sleeve 52, and the third sleeve 53 are all sleeved on the central column 3. A first nut 61 is provided below the first sleeve 51, a second nut 62 is provided below the second sleeve 52, and a third nut 63 is provided below the third sleeve 53. The first nut 61, the second nut 62, and the third nut 63 are all threaded onto the central column 3.

[0021] The upper end of the first cable 41 is detachably connected to the first sleeve 51, the upper end of the second cable 42 is detachably connected to the second sleeve 52, and the upper end of the third cable 43 is detachably connected to the third sleeve 53. The upper end of the first cable 41 is connected to the first sleeve 51 by a locking buckle, the upper end of the second cable 42 is connected to the second sleeve 52 by a locking buckle, and the upper end of the third cable 43 is connected to the third sleeve 53 by a locking buckle. The lower ends of the first cable 41, the second cable 42, and the third cable 43 are spaced apart on the support plate 1. The lower ends of the first cable 41, the second cable 42, and the third cable 43 are detachably connected to the support plate 1, and the lower ends of the first cable 41, the second cable 42, and the third cable 43 are connected to the support plate 1 by a locking buckle.

[0022] The clamp 2 includes a left arc-shaped plate 21 and a right arc-shaped plate 22. The ends of the left arc-shaped plate 21 are fixedly connected to a left fixing plate 23, and the ends of the right arc-shaped plate 22 are fixedly connected to a right fixing plate 24. Fixing bolts 25 are passed through the left fixing plate 23, and through holes 26 matching the fixing bolts 25 are opened on the right fixing plate 24. Anti-slip pads are fixedly connected to the inner walls of the left arc-shaped plate 21 and the right arc-shaped plate 22.

[0023] The support assembly includes multiple diagonal bracing columns 7 disposed between the clamp 2 and the support plate 1. The upper end of the diagonal bracing column 7 is inserted into the upper positioning block 71. An upper positioning bolt 73 passes through the upper positioning block 71. An upper positioning hole matching the upper positioning bolt 73 is opened at the upper end of the diagonal bracing column 7. The upper positioning block 71 is fixedly connected to the support plate 1. The lower end of the diagonal bracing column 7 is inserted into the lower positioning block 72. A lower positioning bolt 74 passes through the lower positioning block 72. A lower positioning hole matching the lower positioning bolt 74 is opened at the lower end of the diagonal bracing column 7. The lower positioning blocks 72 are fixedly connected to both the left arc plate 21 and the right arc plate 22.

[0024] Lifting columns 9 are provided below the left arc plate 21 and the right arc plate 22, and card interfaces matching the upper end of the lifting columns 9 are provided on the left arc plate 21 and the right arc plate 22.

[0025] The lifting column 9 includes an upper lifting rod 91 and a lower lifting column 92 threadedly fitted onto the upper lifting column 91. The locking interface matches the upper end of the upper lifting rod 91, and the bottom end of the lower lifting column 92 is fixedly connected to a stabilizing plate for stable support of the lifting column 9. One end of the support plate 1 is hinged to a lateral support column 8, and the upper end of the lateral support column 8 is hinged to a lateral support plate 81.

[0026] Working principle: Installation and fixing stage: First, the left arc-shaped plate 21 and right arc-shaped plate 22 of the clamp 2 are tightened onto the bridge pier using fixing bolts 25 and through holes 26. The anti-slip pads on the inner walls of the left arc-shaped plate 21 and right arc-shaped plate 22 increase friction to prevent slippage. At the same time, the lifting column 9 is installed at the locking interface below the left arc-shaped plate 21 and right arc-shaped plate 22. The relative positions of the upper lifting rod 91 and the lower lifting column 92 of the lifting column 9 are adjusted to change the height of the lifting column 9, so that the support plate 1 remains horizontal, providing stable bottom support for the overall structure.

[0027] During the support component assembly stage: the lower positioning block 72 on the clamp 2 is fixed to the lower end of the diagonal brace 7 by the lower positioning bolt 74 and the lower positioning hole at the lower end of the diagonal brace 7. The upper end of the diagonal brace 7 is connected to the support plate 1 by the upper positioning block 71, the upper positioning bolt 73 and the upper positioning hole at the upper end of the diagonal brace 7, forming a triangular stable structure, which enhances the lateral stiffness of the support plate 1 and disperses the load of the support plate 1.

[0028] Cable connection and adjustment stage: The upper ends of the first cable 41, the second cable 42, and the third cable 43 are fixed to the first sleeve 51, the second sleeve 52, and the third sleeve 53 respectively, which are sleeved on the central column 3. The lower ends of the first cable 41, the second cable 42, and the third cable 43 are horizontally and intermittently connected to the support plate 1. By rotating the first nut 61, the second nut 62, and the third nut 63 on the central column 3, the vertical position of the first sleeve 51, the second sleeve 52, and the third sleeve 53 on the central column 3 is adjusted, thereby fine-tuning the tension of the first cable 41, the second cable 42, and the third cable 43 to ensure that the multiple sets of cables are subjected to balanced force, and to evenly transfer the load of the cap beam formwork borne by the support plate 1 to the central column 3.

[0029] Lateral support deployment stage: The lateral support column 8 hinged to one end of the support plate 1 unfolds upward. The lateral support plate 81 at the upper end of the lateral support column 8 is adjusted according to the side angle of the cap beam formwork and abuts against the side of the formwork to resist the lateral pressure on the formwork during concrete pouring and prevent the formwork from expanding or shifting.

[0030] Load transfer and force balance stage: The load of the cap beam formwork and concrete is transferred to the first cable 41, the second cable 42, the third cable 43 and the diagonal bracing column 7 through the support plate 1. The first cable 41, the second cable 42, and the third cable 43 vertically transfer the load to the central column 3. The diagonal bracing column 7 transfers part of the load to the clamp 2, and the clamp 2 then transfers the load to the pier. At the same time, the lifting column 9 assists in supporting the clamp 2, together achieving uniform load distribution and force balance of the overall structure, ensuring the safety and stability of the cap beam construction. The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0031] The present invention has been described above with reference to preferred embodiments, but the scope of protection of the present invention is not limited thereto. All technical solutions falling within the scope of the claims are within the scope of protection of the present invention. Various modifications can be made to the present invention, and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way.

Claims

1. A bracket for a bridge pier cap beam formwork, comprising a support plate (1) for supporting the cap beam formwork, a clamp (2) for fastening to the bridge pier, a central column (3) fixedly connected to the support plate (1), and multiple sets of cables (4) disposed between the central column (3) and the support plate (1), characterized in that: The clamp (2) is provided with a support component for supporting the tray (1); along the length of the central column (3), the cables (4) are arranged symmetrically at intervals, the upper end of the cables (4) is vertically connected to the central column (3) at intervals, and the lower end of the cables (4) is horizontally connected to the tray (1) at intervals.

2. The bracket for a bridge pier cap beam formwork according to claim 1, characterized in that: The cable includes a first cable (41), a second cable (42), and a third cable (43) symmetrically arranged on the central column (3). The upper end of the first cable (41) is fixedly connected to the first sleeve (51), the upper end of the second cable (42) is fixedly connected to the second sleeve (52), and the upper end of the third cable (43) is fixedly connected to the third sleeve (53). The first sleeve (51), the second sleeve (52), and the third sleeve (53) are all sleeved on the central column (3). A first nut (61) is provided below the first sleeve (51), a second nut (62) is provided below the second sleeve (52), and a third nut (63) is provided below the third sleeve (53). The first nut (61), the second nut (62), and the third nut (63) are all threaded onto the central column (3).

3. The bracket for a bridge pier cap beam formwork according to claim 1, characterized in that: The clamp (2) includes a left arc plate (21) and a right arc plate (22). The ends of the left arc plate (21) are fixedly connected to a left fixing plate (23), and the ends of the right arc plate (22) are fixedly connected to a right fixing plate (24). A fixing bolt (25) is passed through the left fixing plate (23), and a through hole (26) matching the fixing bolt (25) is opened on the right fixing plate (24). Anti-slip pads are fixedly connected to the inner walls of the left arc plate (21) and the right arc plate (22).

4. The bracket for a bridge pier cap beam formwork according to claim 3, characterized in that: The support assembly includes multiple diagonal bracing columns (7) disposed between the clamp (2) and the support plate (1). The upper end of the diagonal bracing column (7) is inserted into the upper positioning block (71). An upper positioning bolt (73) is inserted through the upper positioning block (71). An upper positioning hole matching the upper positioning bolt (73) is opened at the upper end of the diagonal bracing column (7). The upper positioning block (71) is fixedly connected to the support plate (1). The lower end of the diagonal bracing column (7) is inserted into the lower positioning block (72). A lower positioning bolt (74) is inserted through the lower positioning block (72). A lower positioning hole matching the lower positioning bolt (74) is opened at the lower end of the diagonal bracing column (7). The lower positioning blocks (72) are fixedly connected to both the left arc plate (21) and the right arc plate (22).

5. The bracket for a bridge pier cap beam formwork according to claim 4, characterized in that: Lifting columns (9) are provided below the left arc plate (21) and the right arc plate (22), and card interfaces matching the upper end of the lifting columns (9) are opened on the left arc plate (21) and the right arc plate (22).

6. A bracket for a bridge pier cap beam formwork according to any one of claims 1 to 5, characterized in that: One end of the support plate (1) is hinged to a lateral support column (8), and the upper end of the lateral support column (8) is hinged to a lateral support plate (81).

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