Bridge pier pouring detachable formwork structure

Abstract

The utility model discloses a kind of bridge pier pouring detachable formwork structures, including a plurality of modularization formwork units being formed cylindrical pouring cavity along circumferential splicing, splicing locking mechanism for fixing adjacent formwork unit, annular reinforcing component for reinforcing formwork overall structure, stripping auxiliary structure for assisting formwork disassembly, and to promote the stability of formwork overall inclined strut component. The utility model modularization design cooperates mortise and tenon positioning structure, without complex positioning procedure, splicing speed is greatly promoted compared with traditional formwork;Bolt locking operation is convenient, reduces labor intensity;Stripping coating reduces concrete bonding, stripping auxiliary structure initiatively pushes stripping, disassembly process does not need to knock formwork, avoid formwork damage, improve turnover utilization rate;Vertical splicing can meet different height construction demand, reduce formwork inventory, reduce construction cost;Mortise and tenon splicing cooperates bolt locking, sealing performance is good at splicing place, avoid slurry leakage.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction equipment technology, specifically to a detachable template structure for bridge pier casting. Background Technology

[0002] Bridge piers are the core load-bearing components of a bridge, and their casting quality directly affects the overall stability and service life of the bridge. Formwork, as a key piece of equipment in pier casting construction, must meet requirements such as structural stability, tight joints, and easy disassembly.

[0003] Currently, most bridge pier casting formwork uses steel or wood. Steel formwork is heavy, requires large hoisting equipment for splicing, and has complicated bolt connections. Disassembly is difficult due to concrete adhesion, resulting in low formwork turnover efficiency. Wood formwork has low strength, poor reusability, and is prone to problems such as grout leakage and deformation during casting, affecting the quality of pier casting.

[0004] Therefore, we propose a detachable formwork structure for bridge pier casting to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a detachable template structure for bridge pier casting to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a detachable formwork structure for bridge pier casting, comprising several modular formwork units spliced ​​circumferentially to form a cylindrical casting cavity, a splicing locking mechanism for fixing adjacent formwork units, an annular reinforcing component for reinforcing the overall formwork structure, a demolding auxiliary structure for assisting formwork disassembly, and a diagonal bracing component for improving the overall stability of the formwork; the inner wall of each formwork unit is coated with a demolding coating, and the outer wall is integrally formed with several reinforcing ribs distributed along the height direction; the splicing locking mechanism includes convex tenons and concave tenons located on the four sides of the formwork unit, and fixing through holes, etc. The convex tenon and concave tenon are adapted to each other, and the fixing through holes between adjacent template units are fixed by bolts and nuts; the annular reinforcement component includes an annular hoop, which is spaced along the height direction of the template unit; one end of the diagonal brace is hinged to the annular hoop, and the other end is provided with an anchor seat fixed to the ground; the demolding auxiliary structure includes a push block embedded in the inner wall of the template unit, an adjusting screw with a through threaded part on the template unit, the end of the adjusting screw being movably connected to the push block, and the push block forming a telescopic structure within the template unit through the adjusting screw, with the telescopic direction of the push block perpendicular to the inner wall of the template unit.

[0007] Preferably, the template unit is made of high-strength aluminum alloy, and the height and thickness of the template unit are 8-12mm.

[0008] Preferably, the outer wall of the convex tenon is provided with anti-slip texture, and the inner wall of the concave tenon is provided with a groove that matches the anti-slip texture.

[0009] Preferably, the annular hoop is composed of two semi-circular arc-shaped hoops, the ends of which are fixed by locking bolts and nuts. The inner side of the annular hoop is provided with a limiting groove that matches the outer reinforcing rib of the template unit.

[0010] Preferably, the push block is flush with the same side of the template unit, and a rubber sealing gasket is provided between the push block and the template unit.

[0011] Preferably, the diagonal brace assembly is a telescopic structure, including an internally threaded rod and an externally threaded sleeve rod with threaded connections at both ends of the internally threaded rod. The internally threaded rod has an integrally formed prism with a through hole at the middle position, and the anchor seat has a pre-embedded anchor rod at the bottom.

[0012] Preferably, the release coating is a polytetrafluoroethylene coating with a thickness of 0.3-0.5 mm.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. High splicing efficiency: The modular design combined with the mortise and tenon positioning structure eliminates the need for complex positioning procedures, significantly increasing the splicing speed compared to traditional templates; the bolt locking operation is convenient and reduces labor intensity.

[0014] 2. Easy disassembly: The release coating reduces concrete adhesion, and the release aid structure actively pushes the formwork out of the formwork. The disassembly process does not require knocking on the formwork, avoiding damage to the formwork and improving the turnover rate.

[0015] 3. High versatility: It can be vertically spliced ​​to meet the construction needs of different heights, reduce the amount of formwork to be prepared, and reduce construction costs.

[0016] 4. Stable casting quality: The mortise and tenon joints are locked with bolts, and the joints have good sealing performance to prevent grout leakage; the reinforcing ribs and the ring reinforcement components work together, along with the support of the diagonal bracing components, to reduce formwork deformation and ensure the forming accuracy of the pier column. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a schematic diagram of the template unit splicing structure of this utility model; Figure 4 This is a schematic diagram of the connection structure between the template unit and the ring-shaped reinforcement component of this utility model; Figure 5This is a schematic diagram of the structure of the novel ring-shaped reinforcement component. Figure 6 This is a schematic diagram of the outer structure of the template unit of this utility model; Figure 7 This is a schematic diagram of the inner structure of the template unit of this utility model; Figure 8 This is a schematic cross-sectional view of the template unit of this utility model.

[0018] In the diagram: 1. Template unit; 2. Splicing and locking mechanism; 21. Convex tenon; 22. Concave tenon groove; 23. Fixing through hole; 3. Annular reinforcing component; 31. Annular hoop; 32. Locking bolt; 4. Demolding auxiliary structure; 41. Adjusting screw; 42. Push block; 5. Diagonal brace component. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-8 This utility model provides a technical solution: a detachable template structure for bridge pier casting, including several modular template units 1 spliced ​​together in the circumferential direction to form a cylindrical casting cavity, a splicing locking mechanism 2 for fixing adjacent template units 1, an annular reinforcing component 3 for reinforcing the overall structure of the template, a demolding auxiliary structure 4 for assisting in template disassembly, and a diagonal bracing component 5 for improving the overall stability of the template. The inner wall of template unit 1 is coated with a release coating, which is a polytetrafluoroethylene coating with a thickness of 0.3-0.5mm, to reduce concrete adhesion. The outer wall is integrally formed with several reinforcing ribs distributed along the height direction to improve structural rigidity and prevent deformation during pouring. Template unit 1 is made of high-strength aluminum alloy material, and the height and thickness of template unit 1 are 8-12mm, giving template unit 1 both strength and lightweight advantages.

[0021] The splicing locking mechanism 2 includes convex tenons 21 and concave tenons 22 located on the four sides of the template unit 1, as well as fixing through holes 23. The convex tenons 21 and concave tenons 22 are adapted to each other. The tenons and tenons cooperate to realize the rapid positioning and splicing of the template unit 1 in the up, down, left and right directions. The fixing through holes 23 between adjacent template units 1 are fixed by bolts and nuts. The outer side wall of the convex tenon 21 is provided with anti-slip texture, and the inner side wall of the concave tenon 22 is provided with a groove adapted to the anti-slip texture to enhance the connection stability and prevent grout leakage at the splice.

[0022] The annular reinforcement component 3 includes an annular hoop 31, which is spaced out along the height direction of the template unit 1. The annular hoop 31 consists of two semi-circular hoops, and the ends of the two hoops are fixed by locking bolts 32 and nuts, which facilitates the disassembly and assembly of the annular hoop 31. The inner side of the annular hoop 31 is provided with a limiting groove that matches the outer reinforcing rib of the template unit 1 to prevent displacement during reinforcement.

[0023] One end of the diagonal brace component 5 is hinged to the annular hoop 31, and the other end is provided with an anchor seat fixed to the ground, forming a triangular support structure to improve the overall stability of the template. The diagonal brace component 5 is a telescopic structure, including an internal threaded rod and an external threaded sleeve rod with threads connected to both ends of the internal threaded rod. The middle position of the internal threaded rod is provided with an integrated prism with a through hole, which facilitates the rotation of the internal threaded rod through the prism with the through hole, thereby facilitating the adjustment of the working length of the diagonal brace component 5. The bottom of the anchor seat is provided with a pre-embedded anchor rod to ensure the stability of the anchor seat in working condition.

[0024] The demolding auxiliary structure 4 includes a push block 42 embedded in the inner wall of the template unit 1, an adjusting screw 41 with a through thread on the template unit 1, and the end of the adjusting screw 41 is movably connected to the push block 42. The push block 42 forms a telescopic structure in the template unit 1 through the adjusting screw 41, and the telescopic direction of the push block 42 is perpendicular to the inner wall of the template unit 1. After the pouring is completed, when the template is dismantled, the adjusting screw 41 is rotated to push the push block 42 to push the concrete pier column. With the help of the demolding coating, the demolding can be quickly demolded, avoiding damage caused by the adhesion between the template and the concrete.

[0025] The jacking block 42 is flush with the same side as the template unit 1 to ensure the flatness of the outer side of the pier after pouring. A rubber sealing gasket is provided between the jacking block 42 and the template unit 1 to prevent grout leakage.

[0026] In addition, adjacent template units 1 can also be vertically spliced ​​by using convex tenons 21 and concave tenons 22, and by using bolts and nuts to fix them through the fixing through holes 23, so as to meet the construction needs of piers of different heights.

[0027] Specifically, during construction, the foundation is first erected at the pier pouring location, the anchoring seat is fixed and the anchor rod is pre-embedded; four template units 1 are circumferentially spliced ​​together using convex tenons 21 and concave tenons 22, locking bolts are inserted into the fixing through holes 23 and tightened with nuts to form a pouring cavity; annular hoop 31 is fitted along the height direction of the template, and the locking bolts 32 are tightened so that the annular hoop 31 is tightly attached to the outer reinforcing rib of the template unit 1, the diagonal bracing assembly 5 is connected and the appropriate support length is adjusted; if a higher pier needs to be poured, the splicing and reinforcement steps between the upper and lower template units 1 are repeated.

[0028] After the pouring is completed and cured to the design strength, remove the diagonal bracing assembly 5 and the ring hoop 31; loosen the bolts on the template unit 1, rotate the adjusting screw 41 to push the jacking block 42 to separate the template unit 1 from the pier column, and remove each template unit 1 in sequence to complete the disassembly.

[0029] The template structure in this embodiment is easy to assemble and disassemble, adaptable to the construction of piers of different heights and specifications, and the cast piers have a smooth surface and small verticality error, meeting the requirements of bridge construction specifications.

[0030] Although the present invention 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A detachable formwork structure for bridge pier casting, characterized in that, It includes several modular template units (1) that are spliced ​​together in the circumferential direction to form a cylindrical casting cavity, a splicing locking mechanism (2) for fixing adjacent template units (1), a ring reinforcement component (3) for reinforcing the overall structure of the template, a demolding auxiliary structure (4) for assisting in the disassembly of the template, and a diagonal bracing component (5) for improving the overall stability of the template. The inner wall of the template unit (1) is coated with a release coating, and the outer wall is integrally formed with several reinforcing ribs distributed along the height direction. The splicing locking mechanism (2) includes a convex tenon (21) and a concave tenon (22) provided on the four sides of the template unit (1), as well as a fixing through hole (23). The convex tenon (21) and the concave tenon (22) are adapted to each other. The fixing through hole (23) between adjacent template units (1) is fixed by bolts and nuts. The annular reinforcement component (3) includes an annular hoop (31), which is spaced out along the height direction of the template unit (1); One end of the diagonal brace assembly (5) is hinged to the annular hoop (31), and the other end is provided with an anchor seat fixed to the ground; The demolding auxiliary structure (4) includes a push block (42) embedded in the inner wall of the template unit (1), a through threaded adjusting screw (41) on the template unit (1), the end of the adjusting screw (41) is movably connected to the push block (42), the push block (42) forms a telescopic structure in the template unit (1) through the adjusting screw (41), and the telescopic direction of the push block (42) is perpendicular to the inner wall of the template unit (1).

2. The bridge pier casting detachable formwork structure according to claim 1, characterized in that: The template unit (1) is made of high-strength aluminum alloy and the height and thickness of the template unit (1) are 8-12mm.

3. The bridge pier casting detachable formwork structure according to claim 1, characterized in that: The outer wall of the convex tenon (21) is provided with anti-slip texture, and the inner wall of the concave tenon (22) is provided with a groove that matches the anti-slip texture.

4. The detachable formwork structure for bridge pier casting according to claim 1, characterized in that: The annular hoop (31) consists of two semi-circular hoops. The ends of the two hoops are fixed by locking bolts (32) and nuts. The inner side of the annular hoop (31) is provided with a limiting groove that matches the outer reinforcing rib of the template unit (1).

5. A detachable formwork structure for bridge pier casting according to claim 1, characterized in that: The push block (42) is flush with the same side of the template unit (1), and a rubber sealing gasket is provided between the push block (42) and the template unit (1).

6. The detachable formwork structure for bridge pier casting according to claim 1, characterized in that: The diagonal bracing assembly (5) is a telescopic structure, including an internal threaded rod and an external threaded sleeve rod with threaded connections at both ends of the internal threaded rod. The internal threaded rod has an integrally formed prism with a through hole in the middle position, and the anchor seat has a pre-embedded anchor rod at the bottom.

7. A detachable formwork structure for bridge pier casting according to claim 1, characterized in that: The release coating is a polytetrafluoroethylene coating with a thickness of 0.3-0.5 mm.

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