A self-balanced type steel cantilever platform formwork support system

Abstract

The application provides a self-balanced type steel cantilever platform formwork support system, which comprises: a suspended support beam 1 used for being fixed on a building body 6 and suspended at one end on one side of the building body 6; a support column rod 2 vertically supported on a fixed section of the suspended support beam 1, and both sides of the support column rod 2 are provided with adjustable tension rods 3 arranged in an inclined manner, both ends of the adjustable tension rods 3 are connected with the suspended support beam 1 and the support column rod 2 respectively, and the adjustable tension rods 3 are used for providing adjustable prestress; and a working face erecting assembly 4 arranged on the suspended support beam 1 and used for providing an erecting working face of a formwork support system. The application has a clear force transmission path, controllable rigidity and bearing capacity, and can significantly reduce the risk of local instability, and solves the problems of poor universality, insufficient combination flexibility, difficulty in adapting to complex structure mechanics transmission requirements and poor overall stability of the existing cantilever formwork support system.

Description

Technical Field

[0001] This invention relates to the field of high-altitude cantilever formwork construction technology, and more specifically, to a self-balancing steel cantilever platform formwork support system. Background Technology

[0002] Cantilever formwork support systems are crucial temporary facilities in the construction of complex cast-in-place concrete structures such as cantilevered structures in high-rise buildings, stadium stands, and large canopies. Currently, the formwork support systems widely used in engineering practice are mostly modular structures based on fixed-specification members, such as coupler-type, cup-type, and ring-type steel pipe supports. These traditional systems are assembled on-site using members and accessories of different lengths to form a load-bearing skeleton.

[0003] However, as modern architecture rapidly develops towards more diverse shapes, more complex structures, larger spans, and super high-rise buildings, the aforementioned traditional modular support system has gradually revealed significant limitations. Firstly, its fixed component specifications severely limit its flexibility in assembly, making it difficult to accurately adapt to irregularly shaped components, curved contours, or structures with complex spatial geometry. In actual construction, it often requires cutting, filling, or adding numerous non-standard connectors to barely accommodate these components, which not only increases on-site workload and material waste but also easily creates weak points in the force transmission path.

[0004] Secondly, due to the lack of standardized modular integrated design, the stress calculations and erection processes of traditional systems are difficult to accurately match the inherent mechanical transmission requirements of complex structures. Especially when subjected to eccentric or asymmetrical loads (such as at the base of cantilever structures, or at the junction of grandstand beams and platforms), mechanical imbalances such as localized overload of members, failure of nodes before structural members, and decreased overall stability are prone to occur. These problems directly restrict construction efficiency and concrete forming quality, significantly increase the risk of instability and overturning of the support system, and drastically increase the difficulty of construction safety management.

[0005] In summary, existing cantilever formwork support systems have significant shortcomings in terms of versatility, modularity, and mechanical adaptability, making it difficult to meet the stringent requirements of modern complex construction projects for construction safety, efficiency, and finished product quality. Therefore, there is an urgent need to develop a new type of cantilever formwork support system that features standardization and modularity, optimizes force transmission paths, and improves overall stability. Summary of the Invention

[0006] In view of this, the present invention proposes a self-balancing steel cantilever platform formwork support system, which aims to solve the problems of poor versatility, poor stress adaptability and insufficient overall stability of existing support systems.

[0007] This invention proposes a self-balancing steel cantilever platform formwork support system, which includes: a suspended support beam 1, fixed to the building body 6 with one end suspended on one side of the building body 6; a support column 2, vertically supported on the fixed section of the suspended support beam 1, and adjustable tie rods 3 arranged at an incline on both sides of the support column 2, with their ends connected to the suspended support beam 1 and the support column 2 respectively, for providing adjustable prestress; and a working surface erection assembly 4, set on the suspended support beam 1, for providing a working surface for erecting the formwork support system.

[0008] Furthermore, in the aforementioned self-balancing steel cantilever platform formwork support system, the fixed end of the suspended support beam 1 is fixed to the building body 6 via the main beam fixing component 5.

[0009] Furthermore, in the aforementioned self-balancing steel cantilever platform formwork support system, the main beam fixing component 5 includes: a pre-embedded connecting plate 51, pre-embedded in the surface of the building body 6 and connected to the suspended support beam 1, used to fix the fixed end of the suspended support beam 1; a U-shaped anchor 52, the bottom of which is pre-embedded in the building body 6, and the top open end of the U-shaped anchor 52 is positioned above the building body 6, with the suspended support beam 1 positioned between the two vertical connecting rods 521 of the U-shaped anchor 52; and a pressure plate connecting plate 53, pressed onto the suspended support beam 1 along the width direction, and the pressure plate connecting plate 53 is detachably connected to the two vertical connecting rods 521 of the U-shaped anchor 52, used to clamp the suspended support beam 1 onto the building body 6.

[0010] Furthermore, in the aforementioned self-balancing steel cantilever platform formwork support system, there are multiple U-shaped anchors 52, which are arranged at intervals along the length direction of the suspended support beam 1.

[0011] Furthermore, in the aforementioned self-balancing steel cantilever platform formwork support system, the U-shaped anchor 52 and the suspended support beam 1 are filled with transverse timber 55.

[0012] Furthermore, in the above-mentioned self-balancing steel cantilever platform formwork support system, the suspended support beam 1 includes: a beam body 11 and two U-shaped fasteners 12; wherein, the two U-shaped fasteners 12 are spaced apart on the fixed end and the suspended end of the beam body 11, and are used to fix the ends of the adjustable tie rods 3 respectively.

[0013] Furthermore, in the aforementioned self-balancing steel cantilever platform formwork support system, the beam body 11 is an I-beam structure.

[0014] Furthermore, in the above-mentioned self-balancing steel cantilever platform formwork support system, the support column 2 includes: a column body 21; two U-shaped opposing fasteners 22, which are arranged opposite to each other at the top of the column body 21, and a support rod 23 is provided between the corresponding ends of the two U-shaped opposing fasteners 22 for fixing the ends of the two adjustable tie rods 3 respectively.

[0015] Furthermore, in the aforementioned self-balancing steel cantilever platform formwork support system, the column body 21 is an I-beam column.

[0016] Furthermore, in the above-mentioned self-balancing steel cantilever platform formwork support system, the working surface erection component 4 includes: a plurality of longitudinal timbers 41, all arranged at intervals perpendicular to the suspended support beam 1 on the suspended support beam 1; a fixed formwork 42, set above the longitudinal timbers 41 to form a working surface; and a safety net 43, set on the suspended support beam 1.

[0017] The self-balancing steel cantilever platform formwork support system provided by this invention uses a suspended support beam 1 fixed at one end as the cantilever load-bearing foundation. Vertical support columns 2 combined with adjustable tie rods 3 on both sides form a self-balancing prestressed system. A stable working platform is provided by a work surface erection assembly 4. The prestress applied by the adjustable tie rods 3 mechanically counteracts the negative bending moment and shear deformation at the end of the suspended beam, transforming the cantilever structure from a traditional "passive load-bearing" structure to one of "active control." This effectively offsets adverse deformations and stress concentrations caused by external loads. Furthermore, the adjustable tie rods 3 allow for precise on-site adjustment of the prestress to adapt to different spans and load conditions. Therefore, this system has a clear force transmission path, controllable stiffness and load-bearing capacity, significantly reducing the risk of local instability. It solves the problems of poor versatility, insufficient combination flexibility, difficulty in adapting to complex structural mechanical transmission requirements, and poor overall stability of existing cantilever formwork support systems. In addition, the components are highly modular, easy to assemble and disassemble, and reusable, improving construction efficiency. Meanwhile, this self-balancing steel cantilever platform formwork support system is more efficient, convenient, safe, and stable, and also has the following beneficial effects: 1. Enhanced Structural Safety and Reliability: The innovative combination of "I-beam main beam + I-beam column + turnbuckle tie rod" load-bearing system constructs a spatial load-bearing system that combines rigid cantilever and flexible suspension. The force transmission path is clear and the force is balanced, significantly improving overall stability and load-bearing capacity. At the same time, the turnbuckle tie rod actively applies prestress and adjusts it in real time, and digital monitoring enables deformation control throughout the construction process, strictly controlling the deflection within L / 250, completely solving the core pain points of large deformation and insufficient stability in traditional systems.

[0018] 2. More efficient construction: Adhering to the design concept of standardization and modularization, all steel components are prefabricated in the factory. On-site assembly can be completed with only bolt connection and basket pull rod adjustment. No complicated on-site processing is required, saving 30%-50% of the construction period compared with traditional scattered construction, effectively adapting to the strict requirements of modern engineering for construction progress.

[0019] 3. More significant economic benefits: The main steel components can be flexibly disassembled and reused 8-10 times, greatly reducing material consumption; according to actual engineering calculations, the overall cost is reduced by more than 20% compared with traditional methods under the same conditions, and the reliable safety performance reduces the occurrence of quality accidents, further reducing maintenance costs, and the economic advantages throughout the entire life cycle are outstanding.

[0020] 4. Excellent adaptability: Through modular component combination and turnbuckle dimensional deviation compensation, it can accurately adapt to the complex structural requirements of different cantilever lengths and irregular shapes, solving the problem that traditional system components have fixed specifications, poor combination flexibility, and are difficult to adapt to modern complex cantilever buildings.

[0021] 5. Green and environmentally friendly standards are met: Steel components can be recycled and reused throughout their entire life cycle, and there is no wet work during the construction process, which significantly reduces noise and dust pollution; compared with the traditional wooden formwork support system, it can save a lot of wood resources, which is in line with the concept of green construction and has the dual benefits of resource conservation and environmental friendliness. Attached Figure Description

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of the structure of the self-balancing steel cantilever platform formwork support system provided in an embodiment of the present invention; Figure 2 A structural schematic diagram of beams and columns is provided for embodiments of the present invention; Figure 3 A schematic diagram of the structure of the top of the column provided in an embodiment of the present invention. Figure 4 This is a structural schematic diagram of the beam fixing assembly provided in an embodiment of the present invention; Figure 5 A side view of the beam fixing assembly provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the working face tower assembly provided in an embodiment of the present invention; 1-Suspended support beam 1, 11-Beam body 11, 12-U-shaped fastener 12, 121-Vertical rod 121, 122-Horizontal connecting rod 122, 2-Support column rod 2, 21-Column body 21, 22-U-shaped opposing fastener 22, 23-Support rod 23, 3-Adjustable tie rod 3, 4-Work surface erection assembly 4, 41-Longitudinal timber 41, 42-Fixed template 42, 43-Safety net 43, 5-Main beam fixing assembly 5, 51-Embedded connecting plate 51, 52-U-shaped anchor 52, 521-Vertical connecting rod 521, 53-Pressure plate connecting plate 53, 54-Nut 54, 55-Horizontal timber 55, 6-Building structure 6. Detailed Implementation

[0023] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] See Figures 1 to 6 This figure illustrates a preferred structure of the self-balancing steel cantilever platform formwork support system provided in an embodiment of the present invention. As shown, the support system includes: a suspended support beam 1, support columns 2, adjustable tie rods 3, and a working surface erection assembly 4; wherein, The suspended support beam 1 is used to fix itself to the building body 6 and one end is suspended on one side of the building body 6.

[0025] Specifically, the suspended support beam 1 can be made of high-strength steel such as I-beams, and its fixed end can be fixed to the building structure 6 through the main beam fixing component 5. In particular, it can be reliably anchored to the building structure 6, thereby ensuring that the cantilever end remains stable when bearing formwork, reinforcing bars, concrete and construction live loads. The building structure 6 is the building structure, which can be a shear wall, edge beam or main structural column, etc.

[0026] The support column 2 is vertically supported on the fixed section of the suspended support beam 1. Furthermore, both sides of the support column 2 are provided with adjustable tie rods 3 arranged at an inclination, with their ends connected to the suspended support beam 1 and the support column 2 respectively, to provide adjustable prestress.

[0027] Specifically, the support column 2 is vertically fixed to the end of the suspended support beam 1 near the building body 6, i.e., above the fixed section, serving as a vertical force transmission fulcrum. The adjustable tie rod 3 is preferably a rigid tie rod with a positive and negative threaded adjusting sleeve, one end of which is connected to the top or upper middle part of the support column 2, and the other end is connected to the outside of the cantilevered or fixed section of the suspended support beam 1. By rotating the adjusting sleeve, the preload of the tie rod can be changed, thereby establishing a beneficial self-balancing prestress state in the support system, actively offsetting some of the bending moment and deformation caused by external loads, and significantly improving the overall stiffness and overturning stability. Among them, the adjustable tie rod 3 can be a basket tie rod, with its two ends fixed to one end of the suspended support beam 1 and the top of the support column 2, respectively.

[0028] The working surface erection component 4 is set on the suspended support beam 1 to provide a working surface for the erection of the template support system.

[0029] Specifically, the working surface erection component 4 is fixed on the surface of the suspended support beam 1 to form a self-balancing steel cantilever platform, which provides a foundation for building the formwork system. After the cantilever platform structure is completed, a working surface can be erected for the formwork support system, effectively carrying out construction procedures and ensuring personnel safety.

[0030] See also Figures 1 to 2 , Figures 4 to 5 The suspended support beam 1 includes a beam body 11 and two U-shaped fasteners 12; wherein the two U-shaped fasteners 12 are spaced apart on the fixed end and the suspended end of the beam body 11, and are used to fix the ends of the adjustable tie rods 3 respectively.

[0031] Specifically, the beam body 11 is an I-beam structure, which reduces the risks of working at height and the need for high-altitude welding. I-beams have advantages such as high bending stiffness, relatively light weight, and ease of welding and bolting. In practical use, several pre-drilled holes can be made in the web of the I-beam for fasteners or safety devices. Two U-shaped fasteners 12 are fixedly installed on the upper flange plate of the beam body 11, i.e., the top wall of the horizontal plate at the top of the I-beam. One U-shaped fastener 12 is located near the fixed end of the beam body 11, i.e., the end connected to the building structure 6, while the other U-shaped fastener 12 is located near the suspended end of the beam body 11, i.e., the cantilevered end. The installation spacing of the two U-shaped fasteners 12 can be optimized based on the design tilt angle of the adjustable tie rod 3 and the cantilever length. The U-shaped fasteners 12 and the beam body 11 can be permanently fixed together by welding to ensure load-bearing reliability; alternatively, they can be detachably installed using bolts for easy maintenance or position adjustment later. The beam body 11 and the two U-shaped fasteners 12 can be fixed by welding.

[0032] In this embodiment, as Figure 4As shown, each U-shaped fastener 12 has two upwardly extending vertical rods 121, with a transverse connecting rod 122 between them, which can be, for example, a high-strength steel bar or a bolt. This transverse connecting rod 122 is used to pass through a pre-set connecting ring or spherical bearing at the end of the adjustable tie rod 3, thereby forming a hinged support for the lower end of the adjustable tie rod 3. Through this hinged connection, the adjustable tie rod 3 can rotate freely around the axis of the transverse connecting rod 122, ensuring that no additional bending moment is generated at the end of the tie rod when adjusting the prestress of the tie rod or when the structure is subjected to stress deformation, thus ensuring a clear and pure force transmission path.

[0033] Therefore, by setting U-shaped fasteners 1212 at the fixed end and the suspended end of the beam body 11 respectively, the two U-shaped fasteners 12 provide independent and clear connection points for the two adjustable tie rods 3 with opposite inclination directions, so that the prestress can be adjusted separately without interfering with each other; at the same time, the lower connection point of the adjustable tie rod 3 can be adjusted along the beam length direction, so as to flexibly adapt to the requirements of different cantilever spans for the tie rod angle; furthermore, since the transverse connecting rod 122 of the U-shaped fastener 12 forms a pivot point, the adjustable tie rod 3 can automatically center during the application of prestress, avoiding eccentric force caused by installation errors.

[0034] See also Figure 2 and Figure 3 The supporting column 2 may include: a column body 21 and two U-shaped opposing fasteners 22; wherein, the two U-shaped opposing fasteners 22 are arranged opposite each other at the top of the column body 21 (relative to the top of the column body 21). Figure 2 As shown in the figure, a support rod 23 is provided between the corresponding ends of the two U-shaped opposing fasteners 22, which is used to fix the ends of the two adjustable pull rods 3 respectively.

[0035] Specifically, two U-shaped opposing fasteners 22 are arranged in pairs, with their opening directions facing each other, on both sides of the top of the column body 21. The column body 21 can be an I-beam column, and the two U-shaped opposing fasteners 22 are arranged on both sides of the two flange plates of the column body 21 (e.g., Figure 3 (As shown on the upper and lower sides). Each U-shaped opposing fastener 22 has two parallel extending lugs, and a through hole is formed between the opposing lugs of the two U-shaped opposing fasteners 22 for the support rod 23 to pass through; there are two support rods 23, each corresponding to one of the two adjustable tie rods 3. The support rod 23 is preferably a high-strength steel bar or bolt, which passes through the two opposing lugs and the connecting ring or spherical bearing at the end of the adjustable tie rod 3 located between them. In this way, the top end of the adjustable tie rod 3 forms a hinged connection with the column body 21, allowing the tie rod to rotate slightly in the plane of force, thereby avoiding additional bending moment at the connection node due to the deformation of the cantilever beam or the preload of the tie rod. The column body 21 and the two U-shaped opposing fasteners 22 can be fixed by welding.

[0036] Furthermore, since the two U-shaped opposing fasteners 22 correspond to two adjustable tie rods 3 with opposite inclination directions, one adjustable tie rod 3 is inclined towards the floating end and the other adjustable tie rod 3 is inclined towards the fixed end, so that the tops of the two adjustable tie rods 3 share the same pair of column ear plates. This not only simplifies the structure and reduces the number of parts, but also ensures that the intersection point of the forces of the two tie rods is located on the center line of the column body 21, which is conducive to the symmetrical transmission and balance of forces and avoids bending and torsional damage to the column caused by eccentric loading.

[0037] Meanwhile, locking nuts 54 or cotter pins can be installed at both ends of the support rod 23 to prevent axial movement. When it is necessary to adjust the prestress of the adjustable tie rod 3, simply rotate the adjusting sleeve in the middle of the tie rod, and the end of the tie rod will adaptively and finely adjust the angle along the axis of the support rod 23. The whole process will not produce jamming or additional resistance, which greatly improves the convenience and reliability of on-site construction.

[0038] See also Figure 4 and Figure 5 The main beam fixing assembly 5 includes: a pre-embedded connecting plate 51, a U-shaped anchor 52, and a pressure plate connecting plate 53; wherein, the pre-embedded connecting plate 51 is pre-embedded in the surface of the building body 6 and connected to the suspended support beam 1, used to fix the fixed end of the suspended support beam 1; the bottom of the U-shaped anchor 52 is pre-embedded in the building body 6, and the top open end of the U-shaped anchor 52 is positioned above the building body 6, and the suspended support beam 1 is arranged between the two vertical connecting rods 521 of the U-shaped anchor 52; the pressure plate connecting plate 53 is along the width direction of the suspended support beam 1 (e.g., ...). Figure 4 The plate 53 (in the horizontal direction shown) is pressed on the top of the suspended support beam 1, especially on the top surface of the upper flange plate of the beam body 11. The plate 53 is detachably connected to the two vertical connecting rods 521 of the U-shaped anchor 52 to clamp the suspended support beam 1 to the building body 6.

[0039] Specifically, the embedded connecting plate 51 is a rectangular steel plate, pre-embedded in a predetermined position before pouring the concrete of the building body 6. Its surface is flush with or slightly protruding from the outer surface of the building body 6. Anchor bars can be welded to the back of the embedded connecting plate 51 to enhance the bond strength with the concrete. The fixed end face or lower flange of the suspended support beam 1 can be connected to the embedded connecting plate 51 by welding or bolting. This connection mainly bears the horizontal shear force and prevents the beam end from detaching. The U-shaped anchor 52 is preferably made of high-strength round steel or threaded steel, with its bottom bent section embedded deep in the concrete to provide strong pull-out bearing capacity. The opening of the U-shaped anchor 52 faces upward, and the two vertical connecting rods 521 of the U-shaped anchor 52 extend upward to a certain height from the surface of the building body 6. The extension height can be determined according to the actual situation, such as the height of the beam body 11. The net distance between the two is slightly greater than the height of the suspended support beam 1, i.e., the web height of the I-beam, so that the beam can be smoothly inserted and secured inside. In this embodiment, the top of the vertical connecting rod 521 may be provided with a threaded rod section for fixing by a nut 54, thereby limiting and fixing the pressure plate connecting plate 53 and the beam body 11. In actual installation, multiple U-shaped anchors 52 can be pre-embedded along the beam length direction at the designed spacing. After the concrete reaches the design strength, the suspended support beam 1 is hoisted into place, so that the beam passes between the two vertical connecting rods 521 of each U-shaped anchor 52. The pressure plate connecting plate 53 can be a steel plate with two through holes, and its length is greater than the width of the suspended support beam 1. During installation, the pressure plate connecting plate 53 is pressed onto the top of the upper flange of the suspended support beam 1, and the two through holes are aligned with the upper ends of the two vertical connecting rods 521 of the U-shaped anchor 52, and then the nut 54 is tightened. Through the pre-tightening force generated by tightening the nut 54, the pressure plate connecting plate 53 presses the suspended support beam 1 downward, thereby forming a "top-pressing and bottom-supporting" clamping effect together with the bottom of the U-shaped anchor 52 and the pre-embedded connecting plate 51. In this embodiment, a transverse wooden block 55 is used to fill the space between the U-shaped anchor 52 and the suspended support beam 1.

[0040] In this embodiment, the coordinated operation of the pre-embedded connecting plate 51, U-shaped anchors 52, and pressure plate connecting plate 53 brings the following beneficial effects: First, the multi-point anchoring, i.e., the combination of multiple U-shaped anchors 52 and end fixing, i.e., the pre-embedded connecting plate 51, can effectively resist the huge overturning moment and horizontal shear force generated by the cantilever structure, preventing the beam end from tilting or shifting laterally; Second, the use of a detachable pressure plate connecting plate 53 and nut 54 connection method allows the suspended support beam 1 to be easily removed after the completion of the superstructure construction, realizing the reuse of the component; Third, all the fixing components are made of metal prefabricated parts, requiring no welding or only a small number of bolts on site, resulting in fast construction speed and controllable quality, avoiding large-area later excavation or rebar installation of the building body 6, and minimizing damage to the main structure.

[0041] See also Figure 6The working surface erection component 4 includes: several longitudinal timbers 41, a fixed template 42, and a safety net 43; wherein, the several longitudinal timbers 41 are arranged perpendicularly to the suspended support beam 1 at intervals on the suspended support beam 1; the fixed template 42 is set above the longitudinal timbers 41 to form the working surface; and the safety net 43 is set on the suspended support beam 1.

[0042] Specifically, multiple longitudinal timbers 41 are evenly arranged at certain intervals along the length of the suspended support beam 1. The spacing between adjacent timbers can be adjusted according to the magnitude of the upper construction load: the spacing can be appropriately increased when the load is large, and appropriately increased when the load is small. Since the longitudinal timbers 41 are perpendicular to the direction of the suspended support beam 1, they can evenly distribute the load transmitted from the fixed formwork 42 above onto each parallel suspended support beam 1, avoiding localized concentrated stress. The bottom surface of the fixed formwork 42 is laid flat on the top surface of the longitudinal timbers 41 and is fixedly connected to the longitudinal timbers 41 with nails or self-tapping screws. The upper surface of the fixed formwork 42 is required to be flat, smooth, and without warping to form a working base surface that meets the requirements of subsequent formwork support erection. During construction, this working base surface can serve as both a lower protective platform and a bottom formwork for the cast-in-place concrete structure. The safety net 43 is usually a close-mesh safety net 43 or a large-mesh net woven from high-strength polyester fiber, and the safety net 43 is fixed to the suspended support beam 1 by ties or hooks. When personnel or materials accidentally fall, safety net 43 can effectively absorb and cushion the fall, preventing the accident from occurring.

[0043] In this embodiment, the coordinated arrangement of longitudinal timber 41, fixed template 42, and safety net 43, along with the transverse laying of the longitudinal timber 41 and the fixed template 42 providing a flat and continuous working platform, ensures the safety of construction personnel and provides a reliable support base for the upper template support. The introduction of the safety net 43 solves the fall risk of high-altitude cantilever operations, and its installation position does not interfere with the working space above, achieving a balance between construction safety and operational convenience. This working surface erection component 4 has a simple structure, is quick to assemble and disassemble, and is safe and reliable, fully meeting the high requirements of modern cantilever structure construction for the working platform.

[0044] In summary, the self-balancing steel cantilever platform formwork support system provided in this embodiment uses a suspended support beam 1 fixed at one end as the cantilever load-bearing foundation. Vertical support columns 2 combined with adjustable tie rods 3 on both sides form a self-balancing prestressed system. A stable working platform is provided by the work surface erection assembly 4. The prestress applied by the adjustable tie rods 3 mechanically counteracts the negative bending moment and shear deformation at the end of the suspended beam, transforming the cantilever structure from a traditional "passive load-bearing" system to one of "active control." This effectively offsets adverse deformations and stress concentrations caused by external loads. Furthermore, the adjustable tie rods 3 allow for precise on-site adjustment of the prestress, adapting to different spans and load conditions. Therefore, this system has a clear force transmission path, controllable stiffness and load-bearing capacity, significantly reducing the risk of local instability. It solves the problems of poor versatility, insufficient combination flexibility, difficulty in adapting to complex structural mechanical transmission requirements, and poor overall stability of existing cantilever formwork support systems. In addition, the components are highly modular, easy to assemble and disassemble, and reusable, improving construction efficiency. Meanwhile, this self-balancing steel cantilever platform formwork support system is more efficient, convenient, safe, and stable, and also has the following beneficial effects: 1. Enhanced Structural Safety and Reliability: The innovative combination of "I-beam main beam + I-beam column + turnbuckle tie rod" load-bearing system constructs a spatial load-bearing system that combines rigid cantilever and flexible suspension. The force transmission path is clear and the force is balanced, significantly improving overall stability and load-bearing capacity. At the same time, the turnbuckle tie rod actively applies prestress and adjusts it in real time, and digital monitoring enables deformation control throughout the construction process, strictly controlling the deflection within L / 250, completely solving the core pain points of large deformation and insufficient stability in traditional systems.

[0045] 2. More efficient construction: Adhering to the design concept of standardization and modularization, all steel components are prefabricated in the factory. On-site assembly can be completed with only bolt connection and basket pull rod adjustment. No complicated on-site processing is required, saving 30%-50% of the construction period compared with traditional scattered construction, effectively adapting to the strict requirements of modern engineering for construction progress.

[0046] 3. More significant economic benefits: The main steel components can be flexibly disassembled and reused 8-10 times, greatly reducing material consumption; according to actual engineering calculations, the overall cost is reduced by more than 20% compared with traditional methods under the same conditions, and the reliable safety performance reduces the occurrence of quality accidents, further reducing maintenance costs, and the economic advantages throughout the entire life cycle are outstanding.

[0047] 4. Excellent adaptability: Through modular component combination and turnbuckle dimensional deviation compensation, it can accurately adapt to the complex structural requirements of different cantilever lengths and irregular shapes, solving the problem that traditional system components have fixed specifications, poor combination flexibility, and are difficult to adapt to modern complex cantilever buildings.

[0048] 5. Green and environmentally friendly standards are met: Steel components can be recycled and reused throughout their entire life cycle, and there is no wet work during the construction process, which significantly reduces noise and dust pollution; compared with the traditional wooden formwork support system, it can save a lot of wood resources, which is in line with the concept of green construction and has the dual benefits of resource conservation and environmental friendliness.

[0049] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0050] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A self-balancing steel cantilever platform formwork support system, characterized in that, include: Suspended support beam 1 is used to fix it to the building body 6 and one end is suspended on one side of the building body 6; The support column 2 is vertically supported on the fixed section of the suspended support beam 1. Furthermore, both sides of the support column 2 are provided with inclined adjustable tie rods 3, the two ends of which are respectively connected to the suspended support beam 1 and the support column 2 to provide adjustable prestress. The working surface erection component 4 is set on the suspended support beam 1 and is used to provide a working surface for the erection of the template support system.

2. The self-balancing steel cantilever platform formwork support system according to claim 1, characterized in that, The fixed end of the suspended support beam 1 is fixed to the building body 6 by the main beam fixing assembly 5.

3. The self-balancing steel cantilever platform formwork support system according to claim 2, characterized in that, The main beam fixing assembly 5 includes: An embedded connecting plate 51 is embedded in the surface of the building body 6 and connected to the suspended support beam 1 to fix the fixed end of the suspended support beam 1. The U-shaped anchor 52 is pre-embedded in the building body 6 at the bottom, and the top open end of the U-shaped anchor 52 is placed above the building body 6. The suspended support beam 1 is arranged between the two vertical connecting rods 521 of the U-shaped anchor 52. The pressure plate connecting plate 53 is pressed onto the upper part of the suspended support beam 1 along the width direction of the suspended support beam 1, and the pressure plate connecting plate 53 is detachably connected to the two vertical connecting rods 521 of the U-shaped anchor 52, for clamping the suspended support beam 1 to the building body 6.

4. The self-balancing steel cantilever platform formwork support system according to claim 3, characterized in that, There are multiple U-shaped anchors 52, which are arranged at intervals along the length direction of the suspended support beam 1.

5. The self-balancing steel cantilever platform formwork support system according to claim 3, characterized in that, A transverse wooden block 55 is inserted between the U-shaped anchor 52 and the suspended support beam 1.

6. The self-balancing steel cantilever platform formwork support system according to any one of claims 1 to 5, characterized in that, The suspended support beam 1 includes: a beam body 11 and two U-shaped fasteners 12; wherein... Two U-shaped fasteners 12 are spaced apart on the fixed end and the suspended end of the beam body 11, respectively, for fixing the ends of the adjustable tie rod 3.

7. The self-balancing steel cantilever platform formwork support system according to claim 6, characterized in that, The beam body 11 is an I-beam structure.

8. The self-balancing steel cantilever platform formwork support system according to any one of claims 1 to 5, characterized in that, The supporting column 2 includes: Column body 21; Two U-shaped opposing fasteners 22 are arranged opposite each other at the top of the column body 21. A support rod 23 is provided between the corresponding ends of the two U-shaped opposing fasteners 22 to fix the ends of the two adjustable pull rods 3 respectively.

9. The self-balancing steel cantilever platform formwork support system according to claim 8, characterized in that, The column body 21 is an I-beam steel column.

10. The self-balancing steel cantilever platform formwork support system according to any one of claims 1 to 5, characterized in that, The working face erection component 4 includes: Several longitudinal timber beams 41 are arranged at intervals on the suspended support beam 1, perpendicular to it; A fixed template 42 is set above the longitudinal timber 41 to form a working surface; Safety net 43 is installed on the suspended support beam 1.

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