An assembled cantilevered i-beam formwork support
By using a mechanical connection method for assembled cantilevered I-beam formwork support, the problem of non-removable formwork support for cantilever structures is solved, enabling disassembly and reusability, improving construction efficiency and saving steel.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG CONSTAR CONSTR GRP CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-21
AI Technical Summary
The existing formwork support system for cantilever structures is non-removable due to welded connections, which prevents the components from being reused and results in low construction efficiency.
The system employs assembled cantilevered I-beam formwork support, utilizing high-strength bolts and adjustable supports to achieve a detachable and reusable support structure. It is connected to the cantilevered main beam through a combination of short and long supports, and secured using bolts and stiffening connecting plates.
This technology enables the cantilevered I-beam formwork support to be detachable and reusable, improving construction efficiency, saving steel, and optimizing node connections.
Smart Images

Figure CN224532254U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roof eaves cantilever construction technology, specifically an assembled cantilevered I-beam formwork support. Background Technology
[0002] In building roof construction, cantilevered structures with standard floor outlines are common. However, their protruding structure leads to a lack of reliable support points when erecting formwork. The current mainstream solution is to use cantilevered I-beams as the main supporting beams and erect a formwork support system. However, because cantilever structures usually have large spans, the anchorage section of the cantilevered I-beams needs to be extended to the depth of the structural floor slab. Furthermore, the I-beam joints are mostly welded connections, making the components non-removable and unable to be reused.
[0003] Therefore, we propose an assembled cantilevered I-beam formwork support to solve the problems mentioned above. Utility Model Content
[0004] The purpose of this utility model is to provide an assembled cantilevered I-beam formwork support to solve the problem mentioned in the background art that the welding connection method of the existing support system results in the components being unable to be disassembled and reused.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an assembled cantilevered I-beam formwork support, comprising an embedded beam and a lower structural beam, wherein the side of the embedded beam is connected to the cantilevered main beam.
[0006] The cantilever main beam is connected to a main support side plate on its side. The upper and lower sides of the cantilever main beam are provided with first stiffening connecting plates. Long connecting bolts pass through the sides of the first stiffening connecting plates. A short support is provided at the lower end of the cantilever main beam. The right side of the short support is connected to a long support.
[0007] The upper end of the structural beam is connected to an adjustable support, and the lower end of the long support is connected to the adjustable support.
[0008] Preferably, the main support side plate is fitted to the embedded beam, and high-strength bolts penetrate the four corners of the main support side plate, and the main support side plate is connected to the embedded beam by high-strength bolts.
[0009] By adopting the above technical solution, the main support side plate fixed to the side of the cantilever main beam facilitates the connection with the embedded beam. The main support side plate can be fixed to the embedded beam using high-strength bolts.
[0010] Preferably, the upper ends of both the short support and the long support are fixed with a second stiffening connecting plate, and the lower end of the short support and the side of the long support are fixed with a third stiffening connecting plate, and the two sets of third stiffening connecting plates are bolted together.
[0011] Using the above technical solution, the cantilever main beam can be supported by the combination of short and long supports, and the short and long supports are connected by two sets of third stiffening connecting plates and bolts.
[0012] Preferably, both sets of second stiffening connecting plates are attached to the lower first stiffening connecting plate, and long connecting bolts penetrate the four corners of the first and second stiffening connecting plates, with the upper and lower ends of the long connecting bolts connected to the first and second stiffening connecting plates respectively.
[0013] Using the above technical solution, the short and long supports are connected to the cantilever main beam via a second stiffening connecting plate and a first stiffening connecting plate. The two sets of first stiffening connecting plates can clamp the two sides of the cantilever main beam, and are connected to the first and second stiffening connecting plates with long connecting bolts, thus achieving the connection between the upper ends of the short and long supports and the cantilever main beam.
[0014] Preferably, an auxiliary positioning plate is provided on the side of the first stiffening connecting plate at the lower end, and the auxiliary positioning plate is engaged with the side of the cantilever main beam. A fixing bolt is connected to the middle of the auxiliary positioning plate, and the fixing bolt passes through the first stiffening connecting plate and connects the second stiffening connecting plate.
[0015] By adopting the above technical solution, the connection stability between the first stiffening connecting plate and the cantilever main beam can be further improved through the cooperation of the auxiliary positioning plate and the fixing bolt. The fixing bolt is used to connect with the second stiffening connecting plate, so that the positioning plate and the second stiffening connecting plate cooperate to clamp the first stiffening connecting plate and the cantilever main beam, thereby avoiding lateral displacement between the first stiffening connecting plate and the cantilever main beam.
[0016] Preferably, the lower end of the long support is fixed with a connecting seat, and the lower end of the connecting seat is rotatably connected to the adjustable support.
[0017] The above technical solution utilizes a long support and a connecting seat and an adjustable support for rotational connection, which facilitates fine-tuning and fixing.
[0018] Compared with the prior art, the beneficial effects of this utility model are: the assembled cantilevered I-beam formwork support; the overall connection points of this support structure are mechanically fastened, allowing for disassembly and reuse, and a high number of reuses; the use of bolted connections greatly improves the efficiency of single-point construction; and the optimized nodes save steel. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;
[0021] Figure 3This is a schematic diagram of the short support and long support structures of this utility model;
[0022] Figure 4 This is a schematic diagram of the embedded beam and main support side plate structure of this utility model;
[0023] Figure 5 This is a schematic diagram of the first stiffening connecting plate and the long connecting bolt of this utility model.
[0024] In the diagram: 1. Embedded beam; 2. Cantilever main beam; 3. Main support side plate; 4. First stiffening connecting plate; 5. Short support; 6. Long support; 7. Second stiffening connecting plate; 8. Long connecting bolt; 9. Third stiffening connecting plate; 10. Connecting seat; 11. Adjustable support; 12. Structural beam; 13. Auxiliary positioning plate; 14. Fixing bolt. Detailed Implementation
[0025] 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.
[0026] Please see Figures 1-5 This utility model provides a technical solution: an assembled cantilevered I-beam formwork support, including an embedded beam 1 and a lower structural beam 12. The side of the embedded beam 1 is connected to a cantilevered main beam 2 (the cantilevered main beam 2 is a 20A I-beam). The side of the cantilevered main beam 2 is welded to a main support side plate 3. The main support side plate 3 is fitted to the embedded beam 1, and high-strength bolts penetrate the four corners of the main support side plate 3. The main support side plate 3 is connected to the embedded beam 1 by high-strength bolts. The embedded beam 1 is installed according to requirements. Elongated holes are made at the four corners of the main support side plate 3, and high-strength bolts are passed through these holes to connect to the embedded beam 1.
[0027] The cantilever main beam 2 is provided with first stiffening connecting plates 4 on both the upper and lower sides. There are two sets of first stiffening connecting plates 4, which are located 680mm and 1280mm away from the left end face, respectively. Long connecting bolts 8 pass through the side of the first stiffening connecting plates 4. A short support 5 is provided at the lower end of the cantilever main beam 2. The right side of the short support 5 is connected to the long support 6. Both the short support 5 and the long support 6 are made of 18 H-beams. The upper ends of the short support 5 and the long support 6 are fixed with second stiffening connecting plates 7. The lower end of the short support 5 and the side of the long support 6 are fixed with third stiffening connecting plates 9, and the two sets of third stiffening connecting plates 9 are bolted together. The two sets of second stiffening connecting plates 7 are attached to the lower first stiffening connecting plates 4. Long connecting bolts 8 pass through the four corners of the first stiffening connecting plates 4 and the second stiffening connecting plates 7, and the upper and lower ends of the long connecting bolts 8 are connected to the first stiffening connecting plates 4 and the second stiffening connecting plates 7, respectively. Both the short support 5 and the long support 6 are connected to a third stiffening connecting plate 9 at their lower ends. The two sets of third stiffening connecting plates 9 are fitted together and connected by bolts to achieve the connection between the short support 5 and the long support 6. Both the short support 5 and the long support 6 are fixed to a second stiffening connecting plate 7 at their upper ends. The second stiffening connecting plate 7 is fitted together with the first stiffening connecting plate 4 at its lower end. The long connecting bolts 8 and nuts can fix the relative positions of the two sets of first stiffening connecting plates 4 and second stiffening connecting plates 7. The two sets of first stiffening connecting plates 4 can clamp and fix the cantilever main beam 2, while the connection between the second stiffening connecting plate 7 and the first stiffening connecting plate 4 can fix the cantilever main beam 2 to the short support 5 and the long support 6.
[0028] An auxiliary positioning plate 13 is provided on the side of the lower first stiffening connecting plate 4, and the auxiliary positioning plate 13 engages with the side of the cantilever main beam 2. A fixing bolt 14 is connected to the middle of the auxiliary positioning plate 13, and the fixing bolt 14 passes through the first stiffening connecting plate 4 and connects to the second stiffening connecting plate 7. The fixing bolt 14 can connect the auxiliary positioning plate 13, the lower first stiffening connecting plate 4, and the second stiffening connecting plate 7. After the auxiliary positioning plate 13 is fixed, it can cooperate with the lower first stiffening connecting plate 4 to clamp the lower end of the cantilever main beam 2, thereby avoiding changes in the relative position between the first stiffening connecting plate 4 and the cantilever main beam 2 and improving the support stability.
[0029] An adjustable support 11 is connected to the upper end of the structural beam 12, and the lower end of the long support 6 is connected to the adjustable support 11. A connecting seat 10 is fixed to the lower end of the long support 6, and the lower end of the connecting seat 10 is rotatably connected to the adjustable support 11. The bottom of the long support 6 is connected to the structural beam 12. By using the connecting seat 10 fixed to the bottom of the long support 6 to rotatably connect with the adjustable support 11 fixed to the upper end of the structural beam 12, fine-tuning of the angle can be achieved, improving installation accuracy.
[0030] The short support 5 and the long support 6 are pre-assembled and then hoisted to the designated position. After adjustment and positioning, they are fixed with bolts. First, the position of the bottom support is fixed. The connecting seat 10 is connected to the adjustable support 11. Then, the two sets of first stiffening connecting plates 4 are fixed to the two nodes of the cantilever main beam 2 using long connecting bolts 8. Finally, fine adjustments are made by adjusting the adjustable support 11 between the nodes. Finally, the first stiffening connecting plate 4 and the second stiffening connecting plate 7 are connected to achieve overall fixation.
[0031] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0032] 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. An assembled cantilevered I-beam formwork support, comprising an embedded beam (1) and a lower structural beam (12), wherein the embedded beam (1) is connected to the cantilevered main beam (2) on its side, characterized in that: The cantilever main beam (2) is connected to a main support side plate (3) on its side. The cantilever main beam (2) is provided with a first stiffening connecting plate (4) on its upper and lower sides. The first stiffening connecting plate (4) is connected to a long connecting bolt (8) on its side. The lower end of the cantilever main beam (2) is provided with a short support (5). The right side of the short support (5) is connected to a long support (6). The upper end of the structural beam (12) is connected to an adjustable support (11), and the lower end of the long support (6) is connected to the adjustable support (11).
2. The assembled cantilevered I-beam formwork support according to claim 1, characterized in that: The main support side plate (3) is attached to the embedded beam (1), and high-strength bolts penetrate the four corners of the main support side plate (3). The main support side plate (3) is connected to the embedded beam (1) by high-strength bolts.
3. The assembled cantilevered I-beam formwork support according to claim 1, characterized in that: The upper ends of the short support (5) and the long support (6) are both fixed with a second stiffening connecting plate (7), and the lower end of the short support (5) and the side of the long support (6) are both fixed with a third stiffening connecting plate (9), and the two sets of third stiffening connecting plates (9) are bolted together.
4. The assembled cantilevered I-beam formwork support according to claim 3, characterized in that: Both sets of the second stiffening connecting plates (7) are attached to the lower first stiffening connecting plate (4), and long connecting bolts (8) penetrate the four corners of the first stiffening connecting plate (4) and the second stiffening connecting plate (7), and the upper and lower ends of the long connecting bolts (8) are connected to the first stiffening connecting plate (4) and the second stiffening connecting plate (7) respectively.
5. The assembled cantilevered I-beam formwork support according to claim 4, characterized in that: An auxiliary positioning plate (13) is provided on the side of the first stiffening connecting plate (4) at the lower end, and the auxiliary positioning plate (13) is engaged with the side of the cantilever main beam (2). A fixing bolt (14) is connected in the middle of the auxiliary positioning plate (13), and the fixing bolt (14) passes through the first stiffening connecting plate (4) and connects to the second stiffening connecting plate (7).
6. The assembled cantilevered I-beam formwork support according to claim 1, characterized in that: The lower end of the long support (6) is fixed with a connecting seat (10), and the lower end of the connecting seat (10) is rotatably connected to the adjustable support (11).