Simple support mechanism for assembly type laminated slab formwork

By using I-beams and columns to support the composite slab, combined with height adjustment devices and diagonal bracing, the problems of material waste and heavy load in traditional support frames are solved. This enables efficient formwork installation for the composite slab and post-cast strip area, improving construction efficiency and material turnover.

CN223893791UActive Publication Date: 2026-02-10ANHUI WATER CONSERVANCY DEV CO LTD
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Patent Information

Application Number
CN202520475311.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-02-10
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

Traditional steel pipe and coupler-type internal support frames result in significant material waste during the construction of prefabricated composite slab structures. Furthermore, the on-site loads are large, the support for post-cast strip formwork is complex, and the materials are difficult to reuse after demolding.

Method used

A simple support structure for prefabricated composite slab formwork is adopted, which uses I-beams and columns to support the composite slab. Round tubes are inserted through holes in the vertical plates of the I-beams to form support. Combined with height adjustment devices and diagonal bracing, the formwork installation of the composite slab and the post-pouring strip area is realized.

Benefits of technology

It simplifies the support system of composite slabs, reduces material consumption, improves construction efficiency, reduces on-site load, and facilitates the disassembly, assembly, and turnover of formwork.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an assembly type laminated slab formwork simple support mechanism which comprises I-shaped beams located on the two sides of a post-cast strip area, and the bottom of each I-shaped beam on the single side is supported through a plurality of stand columns. The I-shaped beam comprises horizontal plates with the upper side and the lower side parallel to each other, and a vertical plate is arranged between the horizontal plates on the two sides for connection. A plurality of round holes are evenly formed in the vertical plate at equal intervals, the ends of the round pipes are inserted into the corresponding round holes, the round pipes form a horizontal support of the post-cast strip area, and a formwork is installed and used for concrete pouring of the post-cast strip area. The mode that the stand columns are matched with the I-shaped beams is adopted for supporting, the post-cast strip area is reserved between the laminated slabs, holes are formed in the vertical plates corresponding to the I-shaped beams, the round pipes are selected as supporting carriers, formworks are laid on the upper sides, and then formwork installation of the post-cast strip is completed, a supporting system of the laminated slabs is achieved, and meanwhile formwork building of the post-cast strip area is completed. And engineering disassembly and assembly are simple, consumables are few, and the structure is reliable
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Description

Technical Field

[0001] This utility model belongs to the technical field of engineering construction equipment, and in particular relates to a simple support mechanism for prefabricated composite slab formwork. Background Technology

[0002] During the construction of public buildings, the construction unit uses traditional steel pipe and coupler-type internal support frames for the formwork of prefabricated composite slab structures, erecting them across the entire slab and covering the formwork. This current practice requires a large amount of steel pipes, couplers, square timber, and formwork for support. Given the high floor height, large spans, and large beam cross-sections, this results in significant line loads on the on-site frame beams, sometimes necessitating expert review.

[0003] Post-cast strips are temporary construction joints set up during the construction of cast-in-place reinforced concrete structures to prevent harmful cracks caused by temperature, shrinkage, and other factors. The formwork and supports for post-cast strips should be set up independently. When pouring formwork for post-cast strips between composite slabs, internal supports are generally used. Demolding and piling up large amounts of material prevents effective turnover, resulting in significant material waste and inconvenience to site access. Utility Model Content

[0004] The purpose of this utility model is to provide a simple support mechanism for prefabricated composite slab templates, providing a simple support system to support prefabricated composite slabs, and at the same time providing template support for post-pouring strips, saving manpower and material resources.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] The prefabricated composite slab formwork simple support mechanism includes I-beams located on both sides of the post-pouring strip area, with the I-beams supporting the adjacent composite slabs on the upper side; the bottom of each I-beam is supported by multiple columns.

[0007] The lower end of the column is a base plate;

[0008] The I-beam includes horizontal plates that are parallel to each other on the upper and lower sides, and vertical plates are connected between the two horizontal plates.

[0009] The upper end of the column is supported by a horizontal plate, and the column has a height adjustment device;

[0010] The vertical plate has multiple round holes evenly spaced, and multiple round pipes are connected between the I-beams on both sides. The ends of the round pipes are inserted into the corresponding round holes. The round pipes form a horizontal support for the post-pouring strip area and are equipped with templates for concrete pouring in the post-pouring strip area.

[0011] Furthermore, a support plate is installed between the column and the I-beam. A sleeve is fixed at the bottom center of the support plate for connecting the upper end of the column. The support plate has a folded plate on the side corresponding to the horizontal plate for limiting the position of the side of the horizontal plate.

[0012] Both the folding plate and the horizontal plate have corresponding holes, which are then fixed in place by bolts.

[0013] Furthermore, the height adjustment device is a screw installed on the upper end of the column, the upper end of the screw is sleeved on the sleeve and rotates to engage, the upper end of the column has a threaded sleeve for threaded engagement with the lower end of the screw, and the side wall of the screw has a handle.

[0014] Furthermore, square timber is installed at the bottom of the template, extending along the length of the post-pouring strip area, and the square timber has a groove for accommodating square tubes. Multiple diagonal braces are installed on the side of the column, with the upper end of each brace fixed to the side wall of the column and the lower end of each brace having a support plate installed between it and the pad. One end of each support plate is hinged to the pad, and the other end is hinged to the lower end of the diagonal brace.

[0015] The side wall of the column has a connecting lug for fixing the upper end of the diagonal rod, and the upper end of the diagonal rod has a lug plate that cooperates with the connecting lug for fixing, and is fixed by bolts.

[0016] This utility model has the following beneficial effects: It addresses prefabricated composite slabs. Since these slabs are precast reinforced concrete structures, formwork is not required. The bottom supports of the composite slabs are directly erected using columns and I-beams. A post-cast strip area is reserved between the composite slabs. This area does not require additional bottom supports; supports are formed by opening holes in the vertical plates corresponding to the I-beams. Round pipes are used as the support carrier, and formwork is then laid on top for the post-cast strip formwork installation. This not only solves the support system problem for the composite slabs but also completes the formwork erection for the post-cast strip area. The project is easy to assemble and disassemble, consumes fewer materials, and has a reliable structure. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 : Schematic diagram of the structure of this utility model.

[0019] Figure 2 : Schematic diagram of the template installation structure of this utility model.

[0020] Figure 3 : Schematic diagram of the installation and assembly structure of the I-beam and column of this utility model.

[0021] Figure 4 : Schematic diagram of the column structure of this utility model.

[0022] The components represented by each number in the attached diagram are listed below: I-beam 1, composite slab 3, column 2, pad 21, horizontal plate 11, vertical plate 12, round hole 13, round pipe 5, support plate 6, sleeve 61, folding plate 62, screw 7, handle 71, template 4, square timber 41, trough 42, diagonal brace 22, support plate 23, connecting lug 24, lug plate 25. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] like Figures 1-2 As shown: The prefabricated composite slab formwork simple support mechanism includes I-beams 1 located on both sides of the post-pouring strip area. The I-beams 1 support the adjacent composite slabs 3 on the upper side. The bottom of the single-sided I-beam 1 is supported by multiple columns 2. The post-pouring strip area serves as a tolerance area to prevent errors after the composite slab is formed, and is poured and constructed after the composite slab is prepared.

[0025] The lower end of column 2 is a pad 21;

[0026] The I-beam 1 includes horizontal plates 11 that are parallel to each other on the upper and lower sides, and vertical plates 12 connect the two horizontal plates 11; the I-beam is a horizontal beam with an I-shaped cross section.

[0027] The upper end of the column 2 is supported by the horizontal plate 11, and the column has a height adjustment device for adjusting the height of the column according to the floor height.

[0028] The vertical plate 12 has multiple evenly spaced circular holes 13. Multiple circular pipes 5 are connected between the I-beams 1 on both sides. The ends of the circular pipes 5 are inserted into the corresponding circular holes 13. The circular pipes 5 form a horizontal support for the post-cast strip area, and a template 4 is installed for concrete pouring in the post-cast strip area. The circular holes in the vertical plate are not only used for the insertion support of the ends of the circular pipes, but also serve as weight-reducing holes to reduce material consumption and weight, and facilitate transportation and installation.

[0029] The traditional process for pouring floor slabs involves first erecting a full-span support system, which requires a large amount of support pipes, scaffolding, fasteners, and formwork. Then, steel reinforcement joists are tied to the top of the formwork, and finally, concrete is poured. Only after the concrete has solidified and met the required strength can the post-pouring strip be poured. This process not only extends the construction period but also consumes a lot of manpower and resources.

[0030] This utility model addresses prefabricated composite slabs. Since these slabs are precast reinforced concrete structures, formwork is unnecessary. The bottom supports of the composite slabs are directly erected using columns and I-beams. A post-cast strip area is reserved between the composite slabs; this area does not require additional bottom supports. Supports are formed by drilling holes in the vertical plates corresponding to the I-beams, using round pipes as the support carrier. Formwork is then laid on top for the post-cast strip formwork installation. This not only solves the support system problem for the composite slabs but also completes the formwork erection for the post-cast strip area. The project is simple to assemble and disassemble, consumes fewer materials, and has a reliable structure.

[0031] like Figure 3 As shown: A support plate 6 is installed between the column 2 and the I-beam 1. A sleeve 61 is fixed to the center of the bottom of the support plate 6 for fitting the upper end of the column 2. The support plate 6 has a folding plate 62 on the side corresponding to the horizontal plate 11 for limiting the position of the side of the horizontal plate 11. The folding plate and the support plate are an integral structure, and the folding plate and the side of the support plate are perpendicular to each other. The folding plate is used to prevent the installation deviation of the crossbeam. Both the folding plate 62 and the horizontal plate 11 have corresponding holes, which are fixed by bolts. This is used to improve the installation stability between the I-beam and the support plate. Among them, the horizontal plate has a row of holes for adjusting the position of the support plate, which can be adjusted according to the installation position of the support plate.

[0032] like Figure 4 As shown: The height adjustment device is a screw 7 installed on the upper end of the column 2. The upper end of the screw 7 is sleeved on the sleeve 61 and rotates to engage. The upper end of the column 2 has a threaded sleeve for threaded engagement with the lower end of the screw 7. The side wall of the screw 7 has a handle 71. By rotating the screw, the distance between the column and the screw is increased, thereby achieving the function of adjusting the column height. The handle is used to rotate the screw. A square timber 41 is installed at the bottom of the template 4. The square timber 41 extends along the length of the post-pouring strip area. The square timber 41 has a groove 42 for accommodating the square tube. The square timber improves the stability of the template supported on the round tube.

[0033] Multiple diagonal braces 22 are installed on the sides of the column 2. The upper ends of the diagonal braces 22 are fixed to the side wall of the column 2, and the lower ends are fitted with support plates 23 between them and the base plate 21. One end of the support plate 23 is hinged to the base plate 21, and the other end is hinged to the lower end of the diagonal brace 22. The side wall of the column 2 has connecting ears 24 for fixing the upper ends of the diagonal braces 22. The upper ends of the diagonal braces 22 have ear plates 25 that cooperate with the connecting ears 24 for fixing, and are fixed with bolts. Specifically, there are four diagonal braces, evenly distributed. The support plates are strip-shaped plate structures used to increase the bottom support area. The ends of the support plates are all hinged structures. The connecting ears and ear plates are installed and fixed in a detachable structure. After disassembly, the diagonal braces and support plates can be folded to store them, which facilitates the reduction of the overall volume of the column and makes it convenient for transportation and storage.

[0034] These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of this utility model, so that those skilled in the art can better understand and utilize this utility model.

Claims

1. A simple support mechanism for prefabricated composite slab formwork, characterized in that: Including I-beams (1) located on both sides of the post-cast strip area, the I-beams (1) are supported by the adjacent composite slabs (3) on the upper side; the bottom of the single-sided I-beam (1) is supported by multiple columns (2); The lower end of the column (2) is a pad (21); The I-beam (1) includes horizontal plates (11) that are parallel to each other on the upper and lower sides, and vertical plates (12) connect the two horizontal plates (11); The upper end of the column (2) is supported on the horizontal plate (11), and the column has a height adjustment device; The vertical plate (12) has multiple round holes (13) evenly spaced. Multiple round pipes (5) are connected between the I-beams (1) on both sides. The ends of the round pipes (5) are inserted into the corresponding round holes (13). The round pipes (5) form a horizontal support for the post-pouring strip area and are equipped with templates (4) for concrete pouring in the post-pouring strip area.

2. The simple support mechanism for prefabricated composite slab templates according to claim 1, characterized in that: A support plate (6) is also installed between the column (2) and the I-beam (1). A sleeve (61) is fixed at the center of the bottom of the support plate (6) for connecting the upper end of the column (2). The support plate (6) has a folding plate (62) on the side of the horizontal plate for limiting the position of the side of the horizontal plate (11).

3. The simple support mechanism for prefabricated composite slab templates according to claim 2, characterized in that: Both the folding plate (62) and the horizontal plate (11) have corresponding openings, which are fixed by bolts.

4. The simplified support mechanism for prefabricated composite slab templates according to claim 2, characterized in that: The height adjustment device is a screw (7) installed on the upper end of the column (2). The upper end of the screw (7) is sleeved on the sleeve (61) and rotates to engage. The upper end of the column (2) has a screw sleeve for thread engagement with the lower end of the screw (7). The side wall of the screw (7) has a handle (71).

5. The simplified support mechanism for prefabricated composite slab templates according to claim 1, characterized in that: The bottom of the template (4) is fitted with a square timber (41), which extends along the length of the post-pouring strip area. The square timber (41) has a groove (42) for accommodating the square tube.

6. The simplified support mechanism for prefabricated composite slab templates according to claim 1, characterized in that: Multiple diagonal rods (22) are installed on the side of the column (2). The upper end of the diagonal rod (22) is fixed to the side wall of the column (2), and the lower end is installed between the rod and the pad (21) with a support plate (23). One end of the support plate (23) is hinged to the pad (21), and the other end is hinged to the lower end of the diagonal rod (22).

7. The simple support mechanism for prefabricated composite slab templates according to claim 6, characterized in that: The side wall of the column (2) has a connecting lug (24) for fixing the upper end of the diagonal rod (22), and the upper end of the diagonal rod (22) has a lug plate (25) that cooperates with the connecting lug (24) for fixing, and is fixed by bolts.