Cast-in-place beam formwork system

Abstract

The utility model relates to the technical field of cast-in-place beam, especially to cast-in-place beam formwork system, cast-in-place beam formwork system includes Z -shaped hanger, bottom die and side mould, Z -shaped hanger is two rows of parallel in front and back, two groups of left and right opposition, and the end of two groups of Z -shaped hangers is formed to support department, and the end of far away is formed to overlap and joint department, and overlap and joint department is corresponding to overlap and joint on two adjacent prestressed beams, bottom die extends horizontally and is supported on support department, side mould extends vertically and is two rows of parallel in front and back and is supported on bottom die, and the side wall of two prestressed beams forms the end mould of pouring device, to enclose the pouring cavity of top for open mouth, and its beneficial effect is through its unique Z -shaped hanger structure, can directly hang between two adjacent prestressed beams, need not additional setting traditional support leg or support frame to maintain the stability of formwork, this not only greatly simplifies the construction process, also significantly improved the whole pouring efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of cast-in-place beams, and in particular to a cast-in-place beam formwork system. Background Technology

[0002] Traditional cast-in-place beams in factory buildings are typically constructed using formwork support. However, given the high ceilings and spatial constraints of factory buildings, rebar tying and the erection of high formwork become particularly challenging. High formwork not only requires a large amount of support material but also carries significant safety risks. Furthermore, its complex construction procedures often lead to project delays. To avoid high formwork, a method has been used where outriggers are installed on the sides of the prestressed beams, and formwork is erected on these outriggers. However, this method also presents operational hazards and cumbersome procedures. Therefore, there is an urgent need to develop a simple and efficient construction method to solve the construction challenges of short cast-in-place beams in tall, spacious factory buildings. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a cast-in-place beam formwork system, which solves the technical problems of dangerous operation and complicated procedures in the prior art of building formwork on the legs.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] In a first aspect, this utility model provides a cast-in-place beam formwork system suitable for casting beams on-site between two adjacent prestressed beams. The cast-in-place beam formwork system includes Z-shaped hangers, a bottom formwork, and side formwork. The Z-shaped hangers are arranged in two parallel rows and two sets facing each other. The ends of the two sets of Z-shaped hangers that are close to each other form a support part, and the ends that are far apart form an overlap part. The overlap part overlaps with the two adjacent prestressed beams. The bottom formwork extends horizontally and is supported on the support part. The side formwork extends vertically and is arranged in two parallel rows and is supported on the bottom formwork. The side walls of the two prestressed beams form the end formwork of the casting device to enclose a casting cavity with an open top.

[0008] In one technical solution of this utility model, the Z-shaped hanger includes an upper crossbeam, a lower crossbeam, and a vertical beam connecting the two; a first positioning surface is formed on the lower crossbeam and / or the vertical beam, which is parallel to the side mold and suitable for defining the front and rear positions of the side mold; a second positioning surface is formed on the vertical beam, which is parallel to the end mold and suitable for defining the left and right positions of the side mold.

[0009] In one technical solution of this utility model, the lower horizontal beam and vertical beam are both angle steel, and the legs formed by the angle steel face the casting cavity, so as to form a support part, a first positioning surface and a second positioning surface on the angle steel.

[0010] In one technical solution of this utility model, an adjusting component is also included, which is suitable for adjusting the front and rear spacing of the Z-shaped hanger; the adjusting component includes a screw, the two ends of which are connected to the front and rear adjacent Z-shaped hangers to adjust the spacing between the front and rear adjacent Z-shaped hangers.

[0011] In one technical solution of this utility model, an inverted U-shaped clamp is also included. The inverted U-shaped clamp can be vertically inserted into the outside of the front and rear rows of side molds to limit the front and rear distance between the two rows of side molds.

[0012] In one technical solution of this utility model, the inverted U-shaped clamp includes three interconnected angle steels.

[0013] In one technical solution of this utility model, the inverted U-shaped clamp is available in various span sizes; or the front and rear spans of the inverted U-shaped clamp are adjustable.

[0014] In one technical solution of this utility model, both the bottom mold and the side mold include a flat plate and a reinforcing rib, with the reinforcing rib fixedly connected to the back of the flat plate away from the casting cavity; both the flat plate and the reinforcing rib are made of wood.

[0015] In one technical solution of this utility model, a steel cage is also included, which is placed in the casting cavity. The steel cage includes bottom bars, stirrups and stirrups. The bottom bars are U-shaped and extend laterally at both ends and can be respectively lapped on the top of the adjacent prestressed beams. The stirrups extend to the left and right and can connect the two ends of the bottom bars. The bottom bars and stirrups are arranged in two rows to form the main skeleton, and the stirrups can be tied around the outside of the main skeleton.

[0016] (III) Beneficial Effects

[0017] The beneficial effects of this utility model are as follows: The cast-in-place beam formwork system of this utility model, through its unique Z-shaped hanger structure, can be directly suspended between two adjacent prestressed beams without the need for additional traditional legs or support frames to maintain the stability of the formwork. This not only greatly simplifies the construction process but also significantly improves the overall pouring efficiency. At the same time, it eliminates the step of erecting support structures at height, effectively reducing safety risks during construction, and enabling rapid installation and dismantling. It avoids the high risks and time consumption associated with complex procedures such as formwork erection and rebar tying in traditional high-altitude operations.

[0018] In addition, the device cleverly utilizes the prestressed beams in the existing building structure as end forms, further simplifying the overall structure of the formwork system, thereby improving construction efficiency while effectively controlling construction costs. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of the cast-in-place beam and the prestressed beam of this utility model;

[0020] Figure 2This is a structural schematic diagram of the cast-in-place beam formwork system of this utility model;

[0021] Figure 3 This is a structural schematic diagram of the Z-shaped hanger and adjusting component of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the bottom mold and side mold of this utility model;

[0023] Figure 5 This is a schematic diagram of the inverted U-shaped clamp of this utility model;

[0024] Figure 6 This is a structural schematic diagram of the steel cage of this utility model.

[0025] [Explanation of Labels in the Attached Image]

[0026] 100: Prestressed beam; C: Casting cavity;

[0027] 1: Z-shaped hanger; A: Supporting part; B: Overlapping part;

[0028] 11: Upper crossbeam; 12: Lower crossbeam; 13: Vertical beam;

[0029] D: First positioning surface; E: Second positioning surface;

[0030] 2: Bottom mold;

[0031] 3: Side mold;

[0032] 231: Flat plate; 232: Reinforcing rib;

[0033] 4: Adjustment parts;

[0034] 5: Inverted U-shaped clamp;

[0035] 6: Reinforcing cage; 61: Bottom reinforcement; 62: Stirrups; 63: Stirrups. Detailed Implementation

[0036] To better explain and facilitate understanding of this utility model, the following description is provided in conjunction with the appendix. Figures 1-6 This invention will be described in detail through specific embodiments. Wherein, directional terms such as "upper" and "lower" are used in this document. Figure 1 The orientation is used as a reference.

[0037] Example 1:

[0038] Reference Figures 1-6This utility model provides a cast-in-place beam formwork system suitable for casting beams between two adjacent prestressed beams 100 on site. The cast-in-place beam formwork system includes Z-shaped hangers 1, bottom formwork 2, and side formwork 3. The Z-shaped hangers 1 are two parallel rows and two sets facing each other. The ends of the two sets of Z-shaped hangers 1 that are close to each other form a support part A, and the ends that are far apart form an overlap part B. The overlap part B overlaps with the two adjacent prestressed beams 100. The bottom formwork 2 extends horizontally and is supported on the support part A. The side formwork 3 extends vertically and is two parallel rows that are supported on the bottom formwork 2. The side walls of the two prestressed beams 100 form the end formwork of the casting device to form a casting cavity C with an open top.

[0039] In this embodiment, the cast-in-place beam formwork system, through its unique Z-shaped hanger 1 structure, can be directly suspended between two adjacent prestressed beams 100 without the need for additional traditional supports or brackets to maintain formwork stability. This not only greatly simplifies the construction process but also significantly improves the overall pouring efficiency. Simultaneously, it eliminates the need for high-altitude support structure erection, effectively reducing safety risks during construction and enabling rapid installation and dismantling. This avoids the high risks and time consumption associated with complex procedures such as formwork erection and rebar tying in traditional high-altitude operations.

[0040] Furthermore, this device cleverly utilizes the prestressed beams 100 in the existing building structure as end forms, further simplifying the overall structure of the formwork system. This improves construction efficiency while effectively controlling construction costs. This design not only demonstrates structural innovation but also showcases excellent economy and operability in practical applications, representing a highly efficient, safe, and economical solution for cast-in-place beam construction.

[0041] Specifically, the overlapping part B overlaps with two adjacent prestressed beams 100, thus achieving stable suspension of the entire formwork device. The bottom formwork 2 extends horizontally and is placed on the support part A to bear the weight of the poured concrete. The side formwork 3 is arranged vertically, also set as two parallel rows, and is fixedly supported on the bottom formwork 2. The side walls of the two prestressed beams 100 naturally form the end formwork part of the formwork device, together with the bottom formwork 2 and the side formwork 3, forming a top-open pouring cavity C, which facilitates the injection and vibration of concrete.

[0042] Example 2:

[0043] Reference Figures 1-6 In addition to possessing all the technical solutions of the above embodiments, the embodiments of this utility model further possess the following technical solutions:

[0044] Z-shaped hanger 1 includes an upper crossbeam 11, a lower crossbeam 12, and a vertical beam 13 connecting the two; a first positioning surface D is formed on the lower crossbeam 12 and / or the vertical beam 13, which is parallel to the side mold 3 and suitable for defining the front and rear positions of the side mold 3; a second positioning surface E is formed on the vertical beam 13, which is parallel to the end mold and suitable for defining the left and right positions of the side mold 3.

[0045] In this embodiment, the first positioning surface D is provided on at least one of the lower horizontal and vertical beams 13, preferably simultaneously. The first positioning surface D is used to accurately position the installation position of the side mold 3 in the front-back direction, ensuring that the side mold 3 will not shift during the casting process, thereby ensuring that the geometric dimensions and shape of the formed beam meet the design requirements.

[0046] Meanwhile, a second positioning surface E, parallel to the end formwork, is also provided at the corresponding location of the vertical beam 13. This positioning surface is mainly used to limit the position of the side formwork 3 in the left and right directions, preventing lateral displacement during construction and further enhancing the overall rigidity and stability of the formwork system. Through the synergistic effect of the first positioning surface D and the second positioning surface E, the side formwork 3 is accurately positioned in three-dimensional space, which not only improves the efficiency and accuracy of formwork installation but also effectively ensures the quality of concrete pouring.

[0047] Example 3:

[0048] Reference Figures 1-6 In addition to possessing all the technical solutions of the above embodiments, the embodiments of this utility model further possess the following technical solutions:

[0049] Both the lower horizontal beam 12 and the vertical beam 13 are angle steel, and the legs formed by the angle steel face the casting cavity C, so as to form a support part A, a first positioning surface D and a second positioning surface E on the angle steel.

[0050] In this embodiment, both the lower horizontal beam 12 and the vertical beam 13 are made of angle steel, which not only utilizes the excellent mechanical properties of angle steel, but also provides stable support for the entire template device due to its unique L-shaped structure. The support legs of the angle steel are set towards the inside of the pouring cavity C, and this layout cleverly forms the support part A, the first positioning surface D, and the second positioning surface E.

[0051] Specifically, the arrangement of the angle steel allows it to provide a stable support A through the bent portion when used as the lower crossbeam 12, which is used to support the bottom mold 2, ensuring that the bottom mold 2 extends horizontally and remains stable. At the same time, the vertically extended portion can form the first positioning surface D, which restricts the front and rear positions of the bottom mold 2 and the side mold 3, avoiding possible displacement during the pouring process.

[0052] In addition, the angle steel of the vertical beam 13 will naturally form the first positioning surface D and the second positioning surface E, which are responsible for limiting the position of the side formwork 3 in the left and right directions and the front and back directions, further enhancing the stability and positional accuracy of the side formwork 3, preventing unnecessary movement, ensuring the precise positioning of the side formwork 3 in three-dimensional space, thereby ensuring the accurate size and regular shape of the beam after concrete pouring.

[0053] Furthermore, angle steel is a common material on construction sites. Using angle steel to support the lower horizontal beam 12 and vertical beam 13 facilitates workers in making the cast-in-place beam formwork system on-site, improving convenience and flexibility.

[0054] Furthermore, the upper crossbeam 11 can also be an angle steel, with the plane of the angle steel resting on top of the prestressed beam 100.

[0055] The two transverse ends of the bottom mold 2 make way for the angle steel that forms the second positioning surface E to ensure that the ends of the bottom mold 2 can fit against the side wall of the prestressed beam 100.

[0056] Example 4:

[0057] Reference Figures 1-6 In addition to possessing all the technical solutions of the above embodiments, the embodiments of this utility model further possess the following technical solutions:

[0058] The cast-in-place beam formwork system also includes an adjustment component 4 suitable for adjusting the front and rear spacing of the Z-shaped hangers 1; the adjustment component 4 includes a screw rod, the two ends of which are connected to the front and rear adjacent Z-shaped hangers 1 to adjust the spacing between the front and rear adjacent Z-shaped hangers 1.

[0059] In this embodiment, by adjusting the adjusting component 4, the spacing between the front and rear Z-shaped hangers 1 can be flexibly adjusted to adapt to the needs of different cast-in-place beams, thereby improving the flexibility of the cast-in-place beam formwork system.

[0060] When the spacing between the two Z-shaped hangers 1 changes, the bottom formwork 2 of the corresponding model should also be replaced to adapt to the pouring requirements.

[0061] Example 5:

[0062] Reference Figures 1-6 In addition to possessing all the technical solutions of the above embodiments, the embodiments of this utility model further possess the following technical solutions:

[0063] The cast-in-place beam formwork system also includes inverted U-shaped clamps 5, which can be vertically inserted into the outside of the front and rear rows of side formwork 3 to limit the front-to-back spacing of the two rows of side formwork 3. The inverted U-shaped clamps 5 are available in various span models; or the front-to-back span of the inverted U-shaped clamps 5 is adjustable.

[0064] In this embodiment, the inverted U-shaped clamp 5 is used to limit and fix the front-to-back distance between the two rows of side molds 3, thereby cooperating with the first positioning surface D, effectively enhancing the overall stability of the entire formwork device during the concrete pouring process, and preventing the outward expansion and deformation of the side molds 3 caused by lateral pressure or construction disturbance from affecting the overall quality of the cast-in-place beam.

[0065] To adapt to different spans and construction conditions, the inverted U-shaped clamp 5 is available in various span sizes, allowing for the selection of appropriate specifications for installation based on actual project needs, achieving rapid and standardized construction. In this case, the inverted U-shaped clamp 5 may include three sequentially connected angle steels, facilitating on-site material sourcing and welding to form the inverted U-shaped clamp 5. Alternatively, an adjustable front and rear span design can be adopted, for example, by incorporating a sliding adjustment section or a threaded adjustment mechanism, enabling the clamp to flexibly adapt to different template spacing requirements, further enhancing its applicability and ease of on-site operation.

[0066] Example 6:

[0067] Reference Figures 1-6 In addition to possessing all the technical solutions of the above embodiments, the embodiments of this utility model further possess the following technical solutions:

[0068] Both the bottom mold 2 and the side mold 3 include a flat plate 231 and a reinforcing rib 232. The reinforcing rib 232 is fixedly connected to the back of the flat plate 231 away from the casting cavity C. Both the flat plate 231 and the reinforcing rib 232 are made of wood.

[0069] In this embodiment, the flat plate 231 is the part that directly contacts the concrete and is responsible for forming the surface of the beam, ensuring that the formed beam has good appearance quality and dimensional accuracy. The reinforcing rib 232 is fixedly connected to the back of the flat plate 231, providing additional support to enhance the rigidity and load-bearing capacity of the entire formwork structure and prevent the formwork from deforming or being damaged due to the pressure during concrete pouring.

[0070] In this embodiment, both the flat plate 231 and the reinforcing rib 232 are made of wood. Wood is widely used in construction due to its ease of processing, cost-effectiveness, and certain strength and toughness. Choosing a wood structure not only facilitates customization and cutting according to actual needs, but also allows for the use of wood's good nailing properties to facilitate a firm connection between the reinforcing rib 232 and the flat plate 231, thereby constructing a formwork system that is both sturdy and has a certain degree of flexibility.

[0071] Furthermore, the wooden bottom formwork 2 and side formwork 3, combined with the Z-shaped hanger 1 made of angle steel, allow the cast-in-place beam formwork system to be easily and quickly sourced from the construction site for on-site fabrication and processing, thus improving convenience and flexibility.

[0072] Specifically, the bottom mold 2 and the side mold 3 can also be made of aluminum alloy or steel.

[0073] Example 7:

[0074] Reference Figures 1-6 In addition to possessing all the technical solutions of the above embodiments, the embodiments of this utility model further possess the following technical solutions:

[0075] The cast-in-place beam formwork system also includes a steel cage 6 placed in the casting cavity C. The steel cage 6 includes bottom bars 61, stirrups 62, and stirrup bars 63. The bottom bars 61 are U-shaped and extend laterally at both ends, and can be respectively lapped on the top of the adjacent prestressed beams 100. The stirrup bars 63 extend left and right and can connect the two ends of the bottom bars 61. The bottom bars 61 and the stirrup bars 63 are arranged in two rows to form the main skeleton, and the stirrups 62 can be fastened to the outside of the main skeleton.

[0076] In this embodiment, the bottom reinforcement 61 has a U-shaped structure with its two ends extending laterally and can be respectively overlapped on the top of two adjacent prestressed beams 100. This method of placing the reinforcement cage 6 directly transfers its own weight to the prestressed beam 100, which not only realizes the effective connection between the prestressed beam 100 and the reinforcement cage 6, but also ensures the thickness of the protective layer between the bottom reinforcement 61 and each template, and improves the installation efficiency of the reinforcement cage 6.

[0077] Stirrups 62 surround the outside of the main frame and are arranged according to the design spacing, serving to restrain the longitudinal reinforcement, enhance the overall structure and shear resistance. Through the coordinated action of the bottom reinforcement 61, the stirrups 63 and the stirrups 62, a steel reinforcement frame system with reasonable stress distribution and structural stability is constructed.

[0078] The installation of this reinforcement system not only enhances the load-bearing capacity and seismic performance of the cast-in-place beams, but also facilitates rapid on-site assembly, simplifies the traditional rebar tying process, and further improves construction efficiency. Combined with the overall design of the formwork device, it achieves an integrated construction process from formwork erection to rebar placement, providing a strong guarantee for the efficient and safe completion of cast-in-place beam construction.

[0079] It can be understood that, except for conflicting parts, the above embodiments 1-7 can be freely combined to form other embodiments of this utility model.

[0080] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0081] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0082] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0083] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0084] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A cast-in-place beam formwork system, characterized in that: Suitable for casting crossbeams on site between two adjacent prestressed beams (100), the cast-in-place beam formwork system includes Z-shaped hangers (1), bottom formwork (2) and side formwork (3); The Z-shaped hanger (1) consists of two parallel rows, each row including two sets of opposite sides. The two sets of Z-shaped hangers (1) form a support part (A) at the close end and an overlapping part (B) at the far end. The overlapping part (B) overlaps on two adjacent prestressed beams (100). The bottom mold (2) extends horizontally and is supported on the support part (A); the side molds (3) extend vertically and are two parallel rows and are supported on the bottom mold (2); the side walls of the two prestressed beams (100) form the end molds of the cast-in-place beam formwork system, and the two prestressed beams (100), the two rows of side molds (3) and the bottom mold (2) together form a casting cavity (C) with an open top.

2. The cast-in-place beam formwork system as described in claim 1, characterized in that: The Z-shaped hanger (1) includes an upper crossbeam (11), a lower crossbeam (12), and a vertical beam (13) connecting the two. A first positioning surface (D) is formed on the lower crossbeam (12) and / or the vertical beam (13) that is parallel to the side mold (3) and is suitable for defining the front and rear positions of the side mold (3). A second positioning surface (E) is formed on the vertical beam (13) that is parallel to the end mold and is suitable for defining the left and right positions of the side mold (3).

3. The cast-in-place beam formwork system as described in claim 2, characterized in that: Both the lower crossbeam (12) and the vertical beam (13) are angle steel, and the legs formed by the angle steel face the casting cavity (C) to form the support part (A), the first positioning surface (D) and the second positioning surface (E) on the angle steel.

4. The cast-in-place beam formwork system as described in claim 1, characterized in that: It also includes an adjusting member (4) suitable for adjusting the front and rear spacing of the Z-shaped hanger (1); The adjusting component (4) includes a screw rod, the two ends of which are connected to the adjacent Z-shaped hangers (1) to adjust the spacing between the adjacent Z-shaped hangers (1).

5. The cast-in-place beam formwork system as described in claim 1, characterized in that: It also includes an inverted U-shaped clamp (5), which can be vertically inserted into the outside of the front and rear rows of the side molds (3) to limit the front and rear distance between the two rows of the side molds (3).

6. The cast-in-place beam formwork system as described in claim 5, characterized in that: The inverted U-shaped clamp (5) includes three interconnected angle steels.

7. The cast-in-place beam formwork system as described in claim 5, characterized in that: The inverted U-shaped clamp (5) is available in various span models; Or the front and rear span of the inverted U-shaped clamp (5) is adjustable.

8. The cast-in-place beam formwork system as described in claim 1, characterized in that: Both the bottom mold (2) and the side mold (3) include a flat plate (231) and a reinforcing rib (232), and the reinforcing rib (232) is fixedly connected to the back of the flat plate (231) away from the casting cavity (C); Both the flat plate (231) and the reinforcing rib (232) are made of wood.

9. The cast-in-place beam formwork system as described in claim 1, characterized in that: It also includes a steel cage (6) placed in the casting cavity (C), the steel cage (6) including bottom bars (61), stirrups (62) and support bars (63); The bottom reinforcement (61) is U-shaped and extends laterally at both ends and can be respectively lapped on the top of the adjacent prestressed beam (100); The supporting rib (63) extends to the left and right and can connect the two ends of the bottom rib (61); The bottom reinforcement (61) and the upright reinforcement (63) are arranged in two rows to form the main skeleton, and the stirrups (62) can be tied around the outside of the main skeleton.

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