Prefabricated circular mold

Abstract

The utility model relates to a prefabricated circular mold, and belongs to the technical field of ceiling pier column construction, the prefabricated circular mold comprises a pier column foundation pile, a concrete pouring pile is arranged on the pier column foundation pile, a steel reinforcement framework is arranged in the concrete pouring pile, and a splicing module is arranged on the outer surface of the pier column foundation pile. According to the prefabricated circular mold, through the arrangement of the splicing module, the foundation pile mold is installed on the outer surface of a pier column foundation pile, then the pouring pile mold is placed on the top of the foundation pile mold, so that a forming space is provided for subsequent concrete pouring, the foundation pile mold and the pouring pile mold are in the form of a prefabricated concrete cylinder and can be manufactured in advance in a factory, and the manufacturing cost is reduced. The foundation pile mold and the pouring pile mold are assembled and then transported to a construction site to be assembled, so that the site construction time is shortened, the construction efficiency is improved, concrete pouring piles formed after concrete pouring are integrated with the foundation pile mold and the pouring pile mold respectively, the subsequent mold removal process is avoided, the labor intensity of workers is reduced, and the construction period is effectively shortened.

Description

Technical Field

[0001] This utility model relates to the field of bridge pier construction technology, specifically a prefabricated circular mold. Background Technology

[0002] The construction of overpass piers is a crucial step in overpass construction, and its quality directly affects the stability and safety of the overpass. The construction process includes steps such as construction preparation, foundation construction, pier reinforcement processing and installation, formwork installation, concrete pouring, curing and formwork removal, and quality inspection. Reinforcement processing adopts mechanical processing methods, such as reinforcement straightening machines and bending machines, for straightening and bending operations. When installing formwork, the edge lines of the pier formwork are first marked on the top surface of the foundation, and the formwork is positioned based on these lines. For taller piers, the formwork can be hoisted as a whole or assembled in sections. Concrete pouring should be continuous to avoid cold joints. During the pouring process, the drop height of the concrete must be controlled to prevent concrete segregation.

[0003] In current technologies, the construction of overpass piers involves steps such as formwork installation and dismantling. Both installation and dismantling require manual labor, thus taking up construction time and causing significant labor intensity for workers. For some special overpasses, construction can only be carried out during periods of downtime, making the construction time quite tight. Furthermore, the strength of the connections between precast columns cannot meet the load-bearing requirements when using a fully precast structure. Therefore, a precast circular mold is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a prefabricated circular mold that avoids the need for formwork removal. It solves the problem that the construction of overpass piers involves steps such as formwork installation and removal, which require manual labor and thus consumes a portion of the construction time. Furthermore, the labor intensity for workers is relatively high. For some special overpasses, construction can only be carried out during the off-peak season, resulting in tight construction time. Moreover, the connection strength between prefabricated columns cannot meet the stress requirements when using a fully prefabricated structure.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated circular mold, including a pier foundation pile, wherein a concrete pouring pile is provided on the pier foundation pile, a steel reinforcement skeleton is provided inside the concrete pouring pile, and an assembly module is provided on the outer surface of the pier foundation pile.

[0006] The splicing module includes a pile mold installed on the outer surface of the pier pile, a casting pile mold installed on the top of the pile mold, a sealing component for preventing concrete leakage between the pile mold and the casting pile mold, metal ring sleeves fitted on the outer surfaces of the pile mold and the casting pile mold, threaded sleeves pre-embedded inside the pile mold and the casting pile mold, pile bolts adapted to the threaded sleeves installed on the metal ring sleeves, and bolt washers provided on both the pile bolts and the casting pile bolts.

[0007] Furthermore, the bottom of the concrete-cast pile is fixedly connected to the top of the pier foundation pile, and the steel reinforcement cage is pre-embedded inside the pier foundation pile and the concrete-cast pile.

[0008] Furthermore, both the foundation pile mold and the casting pile mold are precast concrete cylinders, and each of the foundation pile mold and the casting pile mold has four pre-embedded holes.

[0009] Furthermore, the sealing components are a foam strip and structural adhesive. The foam strip is installed between the foundation pile mold and the casting pile mold, and the structural adhesive is filled between the foundation pile mold and the casting pile mold.

[0010] Furthermore, the number of threaded sleeves is eight, and the threaded sleeves are fixedly installed inside the pre-embedded holes. The threaded sleeves and pre-embedded holes on the foundation pile mold are centrally symmetrically distributed, and the threaded sleeves and pre-embedded holes on the cast-in-place pile mold are centrally symmetrically distributed.

[0011] Furthermore, there are four foundation pile bolts and four cast-in-place pile bolts. One end of the foundation pile bolt passes through the threaded sleeve on the foundation pile mold, and the foundation pile bolt is threadedly connected to the threaded sleeve. One end of the cast-in-place pile bolt passes through the threaded sleeve on the cast-in-place pile mold, and the cast-in-place pile bolt is threadedly connected to the threaded sleeve.

[0012] Furthermore, the number of bolt washers is eight, and the eight bolt washers are respectively installed on four foundation pile bolts and four cast-in-place pile bolts.

[0013] Furthermore, both the foundation pile bolts and the cast-in-place pile bolts are low-carbon bolts, the threaded sleeves are high-strength steel sleeves, and the bolt washers are high-strength steel sheets.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] This precast circular mold, with its splicing modules, allows the foundation pile mold to be installed on the outer surface of the pier foundation pile, and then the casting pile mold to be placed on top of the foundation pile mold, thus providing forming space for subsequent concrete pouring. The foundation pile mold and the casting pile mold are in the form of precast concrete cylinders, which can be prefabricated in the factory and then transported to the construction site for assembly, thereby reducing on-site construction time and improving construction efficiency. The concrete casting pile formed after concrete pouring is integrated with the foundation pile mold and the casting pile mold, respectively, avoiding the subsequent demolding process, reducing the labor intensity of workers, effectively shortening the construction period, and enhancing the practicality of the precast circular mold. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 1 Enlarged view of point A in the image;

[0018] Figure 3 This is a perspective view of the structural foundation pile mold, the casting pile mold, and the metal ring sleeve of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the present utility model. Figure 1 The front view.

[0020] In the diagram: 1. Pier foundation pile; 2. Concrete-cast pile; 3. Reinforcing steel cage; 41. Foundation pile mold; 42. Cast-in-place pile mold; 43. Sealing component; 44. Metal ring sleeve; 45. Threaded sleeve; 46. Foundation pile bolt; 47. Cast-in-place pile bolt; 48. Bolt washer. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1 to 4 In this embodiment, the prefabricated circular mold includes a pier pile 1, a concrete pile 2 is provided on the pier pile 1, a steel reinforcement cage 3 is provided inside the concrete pile 2, a splicing module is provided on the outer surface of the pier pile 1, the bottom of the concrete pile 2 is fixedly connected to the top of the pier pile 1, and the steel reinforcement cage 3 is pre-embedded inside the pier pile 1 and the concrete pile 2.

[0023] Example 1: Please refer to Figures 1 to 4 In this embodiment, the splicing module includes a pile mold 41 installed on the outer surface of the pier pile 1. A casting pile mold 42 is installed on the top of the pile mold 41. Both the pile mold 41 and the casting pile mold 42 are precast concrete cylinders. Both the pile mold 41 and the casting pile mold 42 have four pre-embedded holes. The shape of the pile mold 41 and the casting pile mold 42 is adapted to the pier pile 1 and the concrete casting pile 2, which can provide forming space for subsequent concrete pouring. A sealing component 43 is provided between the pile mold 41 and the casting pile mold 42 to prevent concrete leakage.

[0024] The sealing component 43 consists of a foam strip and structural adhesive. The foam strip is installed between the foundation pile mold 41 and the casting pile mold 42, and the structural adhesive is filled between the foundation pile mold 41 and the casting pile mold 42. The foam strip plays a preliminary sealing and buffering role, while the structural adhesive further fills the gaps to prevent concrete leakage during the concrete pouring process.

[0025] By adopting the above technical solution, the foundation pile mold 41 and the cast-in-place pile mold 42 are made of precast concrete cylinders, which can be manufactured in the factory in advance and then transported to the construction site for assembly. The prefabrication method reduces the on-site construction time and workload, improves construction efficiency, and the foundation pile mold 41 and the cast-in-place pile mold 42 are integrated with the formed concrete cast-in-place pile 2 to form a complete pier structure, avoiding the need for demolding work, reducing the labor intensity of workers, and further improving construction efficiency.

[0026] Example 2: Please refer to Figures 1 to 4 In this embodiment, metal rings 44 are fitted onto the outer surfaces of the foundation pile mold 41 and the cast-in-place pile mold 42. Threaded sleeves 45 are pre-embedded inside both the foundation pile mold 41 and the cast-in-place pile mold 42. There are eight threaded sleeves 45, which are fixedly installed inside the pre-embedded holes. The threaded sleeves 45 on the foundation pile mold 41 and the pre-embedded holes are centrally symmetrically distributed. The threaded sleeves 45 on the cast-in-place pile mold 42 and the pre-embedded holes are centrally symmetrically distributed. Foundation pile bolts 46 that are compatible with the threaded sleeves 45 are installed on the metal rings 44. Cast-in-place pile bolts 47 that are compatible with the threaded sleeves 45 are installed on the metal rings 44. Bolt washers 48 are provided on both the foundation pile bolts 46 and the cast-in-place pile bolts 47.

[0027] There are four pile bolts 46 and four cast-in-place pile bolts 47. One end of the pile bolt 46 passes through the threaded sleeve 45 on the pile mold 41 and is threadedly connected to the threaded sleeve 45. One end of the cast-in-place pile bolt 47 passes through the threaded sleeve 45 on the cast-in-place pile mold 42 and is threadedly connected to the threaded sleeve 45. This makes it easy to fix the pile mold 41 and the cast-in-place pile mold 42 using the pile bolts 46 and the cast-in-place pile bolts 47.

[0028] In addition, there are eight bolt washers 48, which are installed on four foundation pile bolts 46 and four cast-in-place pile bolts 47 respectively. Both foundation pile bolts 46 and cast-in-place pile bolts 47 are low-carbon bolts, the threaded sleeves 45 are high-strength steel sleeves, and the bolt washers 48 are high-strength steel sheets, which play a role in increasing friction and preventing bolts from loosening, ensuring that the foundation pile mold 41 and the cast-in-place pile mold 42 are tightly connected together.

[0029] By adopting the above technical solution, the metal ring 44 is fitted onto the outer surface of the pile mold 41 and the casting pile mold 42. The pile bolts 46 and the casting pile bolts 47 on the metal ring 44 are threadedly connected to the threaded sleeves 45 pre-embedded inside the pile mold 41 and the casting pile mold 42, respectively. The bolt washers 48 are installed on the pile bolts 46 and the casting pile bolts 47 to increase friction and prevent the bolts from loosening, thus ensuring that the pile mold 41 and the casting pile mold 42 are tightly connected together.

[0030] The working principle of the above embodiments is as follows:

[0031] When using this precast circular mold, the foundation pile mold 41 is first installed on the outer surface of the pier foundation pile 1, and then the casting pile mold 42 is placed on top of the foundation pile mold 41. Both the foundation pile mold 41 and the casting pile mold 42 are precast concrete cylinders, and their shapes are adapted to the pier foundation pile 1 and the concrete casting pile 2, which can provide forming space for subsequent concrete pouring.

[0032] A sealing component 43 is installed between the foundation pile mold 41 and the cast-in-place pile mold 42. First, a foam strip is installed, and then structural adhesive is filled. The foam strip plays a preliminary sealing and buffering role, while the structural adhesive further fills the gaps to prevent concrete leakage during the concrete pouring process. A metal ring 44 is fitted onto the outer surface of the foundation pile mold 41 and the cast-in-place pile mold 42. The foundation pile bolts 46 and the cast-in-place pile bolts 47 on the metal ring 44 are threadedly connected to the threaded sleeves 45 pre-embedded inside the foundation pile mold 41 and the cast-in-place pile mold 42, respectively. Bolt washers 48 are installed on the foundation pile bolts 46 and the cast-in-place pile bolts 47 to increase friction and prevent the bolts from loosening, ensuring that the foundation pile mold 41 and the cast-in-place pile mold 42 are tightly connected together.

[0033] After the mold assembly is completed and checked to be correct, concrete is poured into the space formed by the foundation pile mold 41 and the casting pile mold 42. The concrete fills the steel reinforcement skeleton 3 to form the concrete casting pile 2, which together with the pier foundation pile 1 constitutes a complete pier structure.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precast circular mold, including pier foundation piles (1), characterized in that: The pier foundation pile (1) is provided with a concrete pouring pile (2), the concrete pouring pile (2) is provided with a steel reinforcement skeleton (3) inside, and the outer surface of the pier foundation pile (1) is provided with a splicing module. The splicing module includes a pile mold (41) installed on the outer surface of the pier pile (1), a casting pile mold (42) installed on the top of the pile mold (41), a sealing component (43) for preventing concrete leakage is provided between the pile mold (41) and the casting pile mold (42), a metal ring sleeve (44) is sleeved on the outer surface of the pile mold (41) and the casting pile mold (42), a threaded sleeve (45) is pre-embedded inside the pile mold (41) and the casting pile mold (42), a pile bolt (46) adapted to the threaded sleeve (45) is installed on the metal ring sleeve (44), a casting pile bolt (47) adapted to the threaded sleeve (45) is installed on the metal ring sleeve (44), and a bolt washer (48) is provided on the pile bolt (46) and the casting pile bolt (47).

2. The prefabricated circular mold according to claim 1, characterized in that: The bottom of the concrete-cast pile (2) is fixedly connected to the top of the pier foundation pile (1), and the steel reinforcement cage (3) is embedded in the pier foundation pile (1) and the concrete-cast pile (2).

3. The prefabricated circular mold according to claim 1, characterized in that: Both the foundation pile mold (41) and the casting pile mold (42) are precast concrete cylinders, and both the foundation pile mold (41) and the casting pile mold (42) have four pre-embedded holes.

4. The prefabricated circular mold according to claim 1, characterized in that: The sealing component (43) consists of a foam strip and structural adhesive. The foam strip is installed between the foundation pile mold (41) and the casting pile mold (42), and the structural adhesive is filled between the foundation pile mold (41) and the casting pile mold (42).

5. The prefabricated circular mold according to claim 3, characterized in that: The number of threaded sleeves (45) is eight. The threaded sleeves (45) are fixedly installed inside the pre-embedded holes. The threaded sleeves (45) on the foundation pile mold (41) and the pre-embedded holes are centrally symmetrically distributed. The threaded sleeves (45) on the cast pile mold (42) and the pre-embedded holes are centrally symmetrically distributed.

6. The prefabricated circular mold according to claim 1, characterized in that: The number of the foundation pile bolts (46) and the cast-in-place pile bolts (47) are both four. One end of the foundation pile bolt (46) passes through the threaded sleeve (45) on the foundation pile mold (41), and the foundation pile bolt (46) is threadedly connected to the threaded sleeve (45). One end of the cast-in-place pile bolt (47) passes through the threaded sleeve (45) on the cast-in-place pile mold (42), and the cast-in-place pile bolt (47) is threadedly connected to the threaded sleeve (45).

7. The prefabricated circular mold according to claim 1, characterized in that: The number of bolt washers (48) is eight, and the eight bolt washers (48) are respectively installed on four foundation pile bolts (46) and four cast-in-place pile bolts (47).

8. The prefabricated circular mold according to claim 1, characterized in that: The foundation pile bolts (46) and the cast-in-place pile bolts (47) are both low-carbon bolts, the threaded sleeve (45) is a high-strength steel sleeve, and the bolt washer (48) is a high-strength steel sheet.

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