Steel-aluminum composite formwork system for independent high and large concrete column and construction method of steel-aluminum composite formwork system

Abstract

The invention provides a steel-aluminum composite formwork system for an independent high and large concrete column and a construction method, and relates to the technical field of concrete formworks. The steel-aluminum composite formwork system comprises multiple sections of aluminum alloy units which are vertically spliced, and every two adjacent aluminum alloy units are connected through a hinge structure; the hinge structures are used for enabling the two adjacent aluminum alloy units to rotate relatively and limiting the rotating directions of the two aluminum alloy units; the connecting structure further comprises a fixing mechanism, the fixing mechanism comprises a child connecting assembly and a mother connecting assembly which are detachably connected, the child connecting assembly and the mother connecting assembly are arranged on the two adjacent aluminum alloy units respectively, the fixing mechanism has a first state and a second state which can be switched, and when the fixing mechanism is in the first state, the child connecting assembly and the mother connecting assembly are connected. When the fixing mechanism is in the first state, the child connecting assemblies and the mother connecting assemblies are combined, and when the fixing mechanism is in the second state, the child connecting assemblies and the mother connecting assemblies are separated so that the two adjacent aluminum alloy units can be unlocked.

Description

Technical Field

[0001] This invention relates to the field of concrete formwork technology, and in particular to a steel-aluminum composite formwork system for independent tall concrete columns and its construction method. Background Technology

[0002] Steel-aluminum composite formwork systems are used for independent, tall concrete columns in building construction. Typically composed of a steel frame and aluminum alloy panels, they combine the high strength of steel with the lightweight properties of aluminum, providing excellent load-bearing capacity to support the pouring and shaping of tall concrete columns. Simultaneously, the use of aluminum alloy makes the formwork lighter, facilitating transportation and installation, and reducing labor and machinery costs. Furthermore, aluminum alloy has strong corrosion resistance, extending the service life of the formwork, and its smooth surface helps improve the finish of the concrete, reducing subsequent plastering work. This composite formwork system has a high reusability rate, typically allowing for multiple uses, thus effectively reducing construction costs. Overall, it provides a good balance between structural strength and construction convenience, meeting the demands of efficient modern building construction.

[0003] The inventors discovered during multiple transports of the steel-aluminum composite formwork system at the construction site that the system often experienced transportation difficulties and instability. Summary of the Invention

[0004] To address the common problems of transportation difficulties and instability in steel-aluminum composite formwork systems, this application provides a steel-aluminum composite formwork system for independent tall concrete columns and its construction method.

[0005] In the first aspect, this application provides a steel-aluminum composite formwork system for independent tall concrete columns, adopting the following technical solution:

[0006] A steel-aluminum composite formwork system for independent tall concrete columns includes vertically spliced ​​multi-segment aluminum alloy units. Adjacent aluminum alloy units are connected by a hinge structure, which allows relative rotation between the two adjacent units and defines their rotation direction. The system also includes a fixing mechanism comprising a detachably connected sub-connecting component and a female connecting component, which are respectively disposed on two adjacent aluminum alloy units. The fixing mechanism has a switchable first state and a second state. In the first state, the sub-connecting component and the female connecting component are engaged to lock the two adjacent aluminum alloy units. In the second state, the sub-connecting component and the female connecting component are disengaged to unlock the two adjacent aluminum alloy units.

[0007] Preferably, the fixing mechanism and the hinge structure are staggered in the circumferential direction of the aluminum alloy unit.

[0008] Preferably, the hinge structure includes a first lug, a second lug, and a connector. On two adjacent aluminum alloy units, one is provided with the first lug and the other with the second lug. The first lug and the second lug have overlapping portions in the radial direction of the aluminum alloy unit, and the lug and the groove are both circular in shape. The connector is provided between the first lug and the second lug, and when the connector connects the first lug and the second lug, it allows the two to rotate relative to each other.

[0009] Preferably, the connector includes a connecting rod and a limiting part. The portions of the first lug and the second lug that face each other are provided with through holes. The connecting rod passes through the two through holes. The limiting part is provided at each of the two ends of the connecting rod. The outer diameter of the limiting part is larger than the inner diameter of the through hole.

[0010] Preferably, the hinge structure is provided on each of the two adjacent aluminum alloy units on opposite sides.

[0011] Preferably, the aluminum alloy unit has a rotating edge, which is located between two hinge structures, and the rotating edges of two adjacent aluminum alloy units are arranged opposite to each other; the rotating edge is arc-shaped, and the two opposing rotating edges are recessed in opposite directions to form a clearance space for the two adjacent aluminum alloy units to rotate.

[0012] Preferably, the inner diameter of the clearance space gradually decreases from the middle to the side closer to the hinge structure.

[0013] Preferably, on two adjacent aluminum alloy units, one is provided with a sub-connecting assembly and the other with a female connecting assembly; when the fixing mechanism switches between the first state and the second state, the sub-connecting assembly and the female connecting assembly are connected or separated on the outer side of the middle near the clearance space.

[0014] Preferably, the sub-connecting assembly includes a first connecting frame, which is open at both ends and hollow inside; the female connecting assembly includes a second connecting frame, a plug-in portion, and a blocking portion, wherein the second connecting frame and the first connecting frame are arranged opposite each other in the axial direction of the aluminum alloy unit, the plug-in portion is slidably inserted between the first connecting frame and the second connecting frame, and the blocking portion protrudes from the side of the plug-in portion away from the first connecting frame, and the blocking portion is used to stop against the edge of the opening of the second connecting frame away from the first connecting frame.

[0015] Secondly, this application provides a construction method for a steel-aluminum composite formwork system for independent tall concrete columns, employing the following technical solution:

[0016] Separate the sub-connecting assembly and the female connecting assembly to place the fixing mechanism in the second state;

[0017] Two adjacent aluminum alloy units are rotated and bent through a hinge structure until they reach the maximum bending state.

[0018] Each adjacent aluminum alloy unit is bent in turn, so that the steel-aluminum composite template system is in a bent state as a whole;

[0019] After placing the bent steel-aluminum composite formwork system on the hoisting equipment until it reaches the predetermined position, the steel-aluminum composite formwork system is then removed.

[0020] After laying the removed steel-aluminum composite formwork system in a straight line, combine the sub-connecting components and the female connecting components to bring the fixing mechanism back to its first state, thereby keeping the steel-aluminum composite formwork system in a straight line, and then proceed with construction.

[0021] The present invention has the following advantages and beneficial effects:

[0022] This configuration, by introducing flexible aluminum alloy units, allows the system to be placed in a folded state within the lifting equipment, resulting in a more compact transport layout and reduced space occupation by the lifting equipment. The core of this innovative design lies in the hinged structure, which allows adjacent aluminum alloy units to rotate relative to each other, enabling the template system to be adjusted to a straight or curved shape when needed, enhancing its adaptability and flexibility.

[0023] Specifically, traditional straight-shaped steel-aluminum composite formwork often requires significant time and manpower for securing during hoisting and transportation to ensure its stability. However, this method is not only time-consuming but also increases the complexity and safety hazards at the construction site. To address this issue, the formwork system of this invention employs a detachable securing mechanism, consisting of sub-connecting components and a mother connecting component, respectively mounted on adjacent aluminum alloy units. With this design, when the securing mechanism is in its first state, adjacent aluminum alloy units are locked, ensuring their safety and stability during hoisting and construction; in the second state, the two units are unlocked, facilitating flexible shape adjustment or disassembly. This mechanism not only improves the stability of the formwork during hoisting and transportation but also significantly reduces the need for additional securing measures.

[0024] Furthermore, the hinged structure design provides the formwork with flexible adjustment capabilities during construction. Construction workers can quickly change the shape of the formwork according to the actual needs of the site, thus adapting to different construction conditions and environments. This flexibility enables the steel-aluminum composite formwork system to better cope with various challenges in building construction and improve overall construction efficiency.

[0025] In summary, the steel-aluminum composite formwork system of this invention successfully solves the stability and operational complexity problems of traditional formwork during transportation and hoisting by introducing a flexible design and an efficient fixing mechanism. This innovation not only improves construction safety but also significantly enhances construction efficiency and shortens the construction cycle, providing strong support for building engineering. Therefore, this invention has significant application prospects and can promote the advancement of steel-aluminum composite formwork technology, meeting the urgent needs of modern building construction for efficiency and safety. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 These are structural illustrations of some embodiments of this application. Figure 1 ;

[0028] Figure 2 These are exploded diagrams of some embodiments of this application;

[0029] Figure 3 yes Figure 2 A partial structural diagram;

[0030] Figure 4 These are structural illustrations of some embodiments of this application. Figure 2 .

[0031] The diagram is marked as follows:

[0032] 1. Aluminum alloy unit; 11. Rotating edge; 12. Clearance space; 2. Hinge structure; 21. First lug; 22. Second lug; 23. Connector; 231. Connecting rod; 232. Limiting part; 3. Fixing mechanism; 31. Sub-connecting assembly; 311. First connecting frame; 32. Female connecting assembly; 321. Second connecting frame; 322. Insertion part; 323. Blocking part; 4. Through hole. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0034] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0035] In the field of building construction, steel-aluminum composite formwork systems are widely used for the construction of independent, tall concrete columns. This system typically consists of a steel frame and aluminum alloy panels, fully utilizing the high strength of steel and the lightweight properties of aluminum alloy. It possesses excellent load-bearing capacity, effectively supporting the pouring and shaping of tall concrete columns. Furthermore, the use of aluminum alloy makes the entire formwork system easier to transport and install, reducing labor and machinery costs. Simultaneously, the corrosion resistance of aluminum alloy enhances the durability of the formwork, while its smooth surface helps improve the finish of the concrete, thus reducing the need for subsequent plastering. This composite formwork system typically has a high reusability rate, allowing for multiple uses, further reducing construction costs.

[0036] However, during actual construction, the inventors discovered difficulties and instability during the transportation of the steel-aluminum composite formwork system. The main reason for this problem is that the steel-aluminum composite formwork system is integrally molded and has a long, straight shape. Using a straight-line hoisting method is particularly inconvenient during hoisting, easily leading to the collapse of the formwork system. Furthermore, to maintain the stability of the formwork during hoisting, construction workers often need to install numerous fixing structures inside the hoisting equipment to enhance its stability. This not only increases the construction period but also presents difficulties when removing the formwork.

[0037] The shortcomings of existing technologies are mainly reflected in the following aspects: First, the straight and long structure of the steel-aluminum composite formwork system makes the hoisting process complex, prone to safety hazards, and increases the risk of accidents on the construction site. Second, the installation and dismantling of the fixed structure is not only time-consuming but also requires additional manpower and material resources, thereby reducing construction efficiency. Third, traditional hoisting methods have failed to effectively solve the stability problem of the formwork during transportation, resulting in a decrease in the efficiency of transportation and use on the construction site, which seriously affects the overall construction progress.

[0038] Therefore, to address the aforementioned issues, a novel transportation and hoisting solution for steel-aluminum composite formwork is urgently needed to improve its stability on construction sites, simplify the installation and dismantling process, thereby enhancing construction efficiency and ensuring safety. This solution should overcome the shortcomings of existing technologies, providing a more convenient, safe, and efficient solution for the transportation and hoisting of formwork systems, thus supporting the development of the construction industry.

[0039] Analysis of existing technologies reveals that while steel-aluminum composite formwork is designed to improve construction efficiency and reduce costs during transportation and hoisting, its insufficient stability and operational complexity lead to prolonged construction periods and increased safety hazards in practice. Therefore, it is essential to explore a new formwork system that meets high strength requirements while simplifying operational procedures, from a technological innovation perspective. This will not only help improve the overall efficiency of building construction but also promote the further application and development of steel-aluminum composite formwork systems while ensuring construction safety.

[0040] Based on this, this application provides a steel-aluminum composite formwork system for independent tall concrete columns. Please refer to... Figures 1-4 The steel-aluminum composite template system includes vertically spliced ​​multi-segment aluminum alloy units 1. Two adjacent aluminum alloy units 1 are connected by a hinge structure 2. The hinge structure 2 is used to allow the two adjacent aluminum alloy units 1 to rotate relative to each other and to limit the direction of rotation of the two.

[0041] Meanwhile, the steel-aluminum composite template system also includes a fixing mechanism 3. The fixing mechanism 3 includes a detachably connected sub-connecting component 31 and a female connecting component 32. The sub-connecting component 31 and the female connecting component 32 are respectively disposed on two adjacent aluminum alloy units 1. The fixing mechanism 3 has a switchable first state and a second state. When the fixing mechanism 3 is in the first state, the sub-connecting component 31 and the female connecting component 32 are combined to lock the two adjacent aluminum alloy units 1. When the fixing mechanism 3 is in the second state, the sub-connecting component 31 and the female connecting component 32 are separated to unlock the two adjacent aluminum alloy units 1.

[0042] The steel-aluminum composite formwork system of this application aims to solve the problems of insufficient stability and operational complexity encountered in the transportation and hoisting process of existing technologies. Specifically, the formwork system is designed to bend into a folded state to facilitate compact placement in hoisting equipment, thereby reducing the time and manpower consumed by fixing long, straight formwork.

[0043] This system consists of multiple vertically spliced ​​aluminum alloy units 1, which are connected by a hinged structure 2. This allows for relative rotation between adjacent units while restricting their direction of rotation. This design enables the formwork to adapt to different spatial constraints during transportation and allows for flexible adjustment to a straight or curved shape during hoisting. The application of the hinged structure 2 enhances the stability of the formwork during hoisting, effectively preventing tilting or collapse due to an unstable center of gravity, thereby improving the safety of the construction site.

[0044] Furthermore, this invention introduces a detachable fixing mechanism 3, consisting of a sub-connecting assembly 31 and a female connecting assembly 32, respectively disposed on adjacent aluminum alloy units 1. This fixing mechanism 3 has a switchable first state and a second state. In the first state, the sub-connecting assembly 31 and the female connecting assembly 32 are engaged, locking the adjacent aluminum alloy units 1 and ensuring no displacement during hoisting and construction. In the second state, the sub-connecting assembly 31 and the female connecting assembly 32 are separated, releasing the locking state and facilitating quick disassembly and reconfiguration. This innovative design significantly simplifies the installation and disassembly process of the formwork, reduces reliance on additional fixing devices, and minimizes construction efficiency losses.

[0045] By implementing this formwork system, construction workers can quickly adjust and configure the formwork without having to perform cumbersome fixing steps during hoisting. This not only optimizes construction time and improves efficiency but also reduces safety hazards caused by improper operation. The folding function of the formwork reduces its space requirement during transportation, facilitating the centralized transport of multiple sections, thereby improving transportation efficiency and reducing transportation costs.

[0046] In summary, the steel-aluminum composite formwork system of this invention, through its flexible hinged structure 2 and efficient fixing mechanism 3, solves the problems of insufficient stability and operational complexity existing in the prior art. This system design not only enhances construction safety but also significantly improves construction efficiency, providing reliable technical support for the modernization of the construction industry. Therefore, this invention has significant application value and broad market prospects in the field of construction, effectively meeting the current dual demands of safety and efficiency in construction.

[0047] In some implementations, such as Figure 1As shown, the fixing mechanism 3 and the hinge structure 2 are staggered in the circumferential direction of the aluminum alloy unit 1. By staggering the fixing mechanism 3 and the hinge structure 2, the stress applied to the template can be effectively dispersed, avoiding stress concentration and thus reducing the risk of deformation and damage to the template during hoisting. Simultaneously, this staggered distribution design enhances the mutual support between adjacent aluminum alloy units 1, allowing the template to distribute pressure more evenly under external loads, thereby improving the overall load-bearing capacity. This structural layout also improves the flexibility of the template, making it easier to adapt to various construction environments and conditions in practical applications, further improving the efficiency of template use. Furthermore, the staggered arrangement reduces interference that may result from the direct overlap of the fixing mechanism 3 and the hinge structure 2, improving operational convenience. In summary, this circumferentially staggered distribution design not only effectively solves the problem of insufficient stability in existing technologies but also improves the overall performance of the template, providing a safer and more reliable technical guarantee for building construction.

[0048] In some implementations, combined with Figure 2 , 3 The hinge structure 2 includes a first lug 21, a second lug 22, and a connector 23. On two adjacent aluminum alloy units 1, one has the first lug 21 and the other has the second lug 22. The first lug 21 and the second lug 22 overlap in the radial direction of the aluminum alloy unit 1, and both the lug and the groove are circular in shape. Meanwhile, the connector 23 is located between the first lug 21 and the second lug 22, and when the connector 23 connects the first lug 21 and the second lug 22, it allows the two to rotate relative to each other.

[0049] This design, employing a circular structure with lugs and grooves, provides excellent fit during relative rotation, reducing friction and wear, thereby extending the service life of the hinge structure 2. The circular shape of this structure not only makes rotation smoother but also reduces localized stress concentration caused by rotation, thus minimizing damage to the aluminum alloy unit 1 caused by stress concentration during use. This design enhances the flexibility of the formwork during construction, allowing construction personnel to quickly adjust the angle or shape of the formwork as needed, adapting to different construction environments and conditions, and improving the convenience and safety of construction.

[0050] Furthermore, the overlapping portion design of the hinge structure 2 allows for better alignment of the two aluminum alloy units 1 during connection, ensuring more even force transmission under external loads and contributing to improved overall load-bearing capacity. Simultaneously, this design effectively avoids assembly difficulties caused by misalignment, simplifying the installation and disassembly process of the formwork and further improving construction efficiency. In summary, through this hinge structure 2 design, the present invention not only enhances the operational flexibility and service life of the formwork but also strengthens safety and stability during construction, providing a more efficient and reliable solution for modern building construction.

[0051] In some implementations, such as Figure 2 , 3 As shown, the connector 23 includes a connecting rod 231 and a limiting part 232. The parts of the first lug 21 and the second lug 22 that are directly opposite each other are provided with through holes 4. The connecting rod 231 passes through the two through holes 4. The limiting part 232 is provided at both ends of the connecting rod 231. The outer diameter of the limiting part 232 is larger than the inner diameter of the through hole 4.

[0052] Specifically, by providing through holes 4 on the first lug 21 and the second lug 22 and connecting them with a connecting rod 231, the connection strength between the aluminum alloy units 1 is enhanced, and the assembly process of the hinge structure 2 is simplified. The use of the connecting rod 231 allows the two aluminum alloy units 1 to form a more stable hinge relationship when connected, reducing the loosening of the connection caused by vibration or external force during construction. The setting of the limiting part 232 can effectively restrict the movement of the connecting rod 231 in the through hole 4, ensuring the fixation of the connection position and preventing loosening or displacement due to improper operation or external force during use, thereby greatly improving the safety of construction.

[0053] Furthermore, the design of the outer diameter of the limiting part 232 being larger than the inner diameter of the perforation 4 ensures simple operation during installation and prevents the connecting rod 231 from accidentally falling off. This design allows construction workers to complete the operation more smoothly when installing or adjusting the formwork, reducing the need for manpower and time and improving construction efficiency. At the same time, the combination of the connecting rod 231 and the limiting part 232 ensures that the hinged structure 2 can effectively disperse stress when bearing various loads, reducing local stress concentration and thus extending the service life of the overall formwork.

[0054] In some implementations, such as Figure 4As shown, a hinge structure 2 is provided on each of the two adjacent aluminum alloy units 1, facing away from each other. By providing a hinge structure 2 on each side of the aluminum alloy unit 1, the externally applied load can be effectively balanced, reducing deformation and tilting caused by uneven stress. This double-sided hinge design allows the formwork to maintain better stability during hoisting and construction, reducing the risk of tipping or damage. Furthermore, the interaction between the two hinge structures 2 helps to distribute force, increasing the overall rigidity of the formwork and thus improving safety during concrete pouring. This design also simplifies the installation and adjustment process of the formwork, making it easier for construction workers to operate, thereby further improving construction efficiency and safety. Overall, this invention, through the innovative design of the double-sided hinge structure 2, provides a more reliable and efficient technical guarantee for modern building construction.

[0055] In some implementations, reference is made to Figure 4 The aluminum alloy unit 1 has a rotating edge 11, which is located between two hinge structures 2, and the rotating edges 11 of two adjacent aluminum alloy units 1 are arranged opposite to each other. The rotating edge 11 is arc-shaped, and the two opposing rotating edges 11 are recessed in opposite directions to form a clearance space 12 for the adjacent two aluminum alloy units 1 to rotate.

[0056] Specifically, the design of the rotating edge 11 allows for smoother rotation of the aluminum alloy units 1, preventing interference between the connecting hinge structures 2 during movement and avoiding operational difficulties caused by friction or obstruction. This arc-shaped edge not only reduces wear at the connection points but also provides additional clearance 12, ensuring that adjacent aluminum alloy units 1 can move freely during rotation, thereby improving operational safety and efficiency. This structural configuration helps to disperse stress, reduce localized stress concentration, and thus extend the service life of the template.

[0057] Furthermore, the recessed design of the rotating edge 11 provides additional rotation space for adjacent aluminum alloy units 1, allowing the template to be adjusted more flexibly and without restriction to complete the required angle changes. This flexibility not only improves the convenience for construction workers during operation, but also enables the template to better adapt to different construction conditions and environments, thereby improving the overall construction efficiency and safety.

[0058] In some implementations, reference is made to Figure 4 The inner diameter of the clearance space 12 gradually decreases from the middle to the side near the hinge structure 2.

[0059] By gradually reducing the inner diameter, the movement trajectory of adjacent aluminum alloy units 1 during rotation can be effectively guided, reducing displacement and swaying that may be caused by excessive freedom, thereby improving the stability of the formwork during hoisting and pouring. Furthermore, this design allows the gaps at the connection points to gradually tighten, helping to improve the precision and sealing of the hinged structure 2, preventing concrete leakage or overflow due to excessive gaps during concrete pouring. Simultaneously, the reduced inner diameter facilitates a more precise fit when the aluminum alloy units 1 rotate relative to each other, improving the overall structural rigidity and load-bearing capacity of the formwork, thus providing a safer and more stable technical guarantee for the construction of tall concrete columns. This innovative design not only improves the ease of operation of the formwork but also further enhances the safety and efficiency of construction, meeting the demands of modern building construction for high-performance formwork.

[0060] In some implementations, such as Figure 2 , 3 As shown, on two adjacent aluminum alloy units 1, one is provided with a sub-connecting component 31 and the other with a female connecting component 32; when the fixing mechanism 3 switches between the first state and the second state, the sub-connecting component 31 and the female connecting component 32 are connected or separated on the outer side of the middle near the clearance space 12.

[0061] For example, the sub-connecting component 31 includes a first connecting frame 311, which has openings at both ends and is hollow inside; the female connecting component 32 includes a second connecting frame 321, a plug-in portion 322, and a blocking portion 323. The second connecting frame 321 and the first connecting frame 311 are arranged opposite each other in the axial direction of the aluminum alloy unit 1. The plug-in portion 322 is slidably inserted between the first connecting frame 311 and the second connecting frame 321, and the blocking portion 323 protrudes from the side of the plug-in portion 322 away from the first connecting frame 311. The blocking portion 323 is used to stop the second connecting frame 321 from the opening edge of the side of the second connecting frame 321 away from the first connecting frame 311.

[0062] With this configuration, when the fixing mechanism 3 switches between the first and second states, the sub-connecting assembly 31 and the female connecting assembly 32 connect or separate near the outer center of the clearance space 12. This design provides an efficient operating method, allowing construction workers to smoothly complete connections during the assembly and disassembly of the formwork, reducing time wastage and potential safety hazards caused by improper operation. Due to the open design and hollow structure of the connecting frame, the adjustment and docking of the formwork during assembly become more flexible, enabling construction workers to quickly adapt to various construction conditions on site, thereby improving construction efficiency.

[0063] Furthermore, the insertion part 322 in the female connecting assembly 32 allows the first connecting frame 311 and the second connecting frame 321 to slide into each other, ensuring a tight and stable connection. The blocking part 323 protrudes from the side of the insertion part 322 away from the first connecting frame 311, providing additional safety for the template connection and preventing accidental loosening or detachment due to weak connections. This structure not only improves the connection strength between the aluminum alloy units 1 but also effectively reduces the failure rate during construction, thus providing strong support for the safe construction of tall concrete columns.

[0064] Furthermore, the flexibility and adaptability of this design have been significantly enhanced. Through this switchable connection method, the formwork can maintain good operational performance in various construction environments, adapting to different construction requirements and thus meeting the high standards of precision and efficiency demanded by modern construction. This structural layout simplifies the traditional formwork reassembly and disassembly process into an efficient connection process, saving construction units labor costs and time, and improving the overall economic efficiency of construction.

[0065] This application also provides a construction method for a steel-aluminum composite formwork system for independent tall concrete columns, based on the aforementioned steel-aluminum composite formwork system, including the following steps:

[0066] Separate the sub-connecting assembly 31 and the female connecting assembly 32 to put the fixing mechanism 3 in the second state;

[0067] The two adjacent aluminum alloy units 1 are rotated and bent through the hinge structure 2 until the maximum bending state is reached.

[0068] Each adjacent aluminum alloy unit 1 is bent in turn, so that the steel-aluminum composite template system is in a bent state as a whole;

[0069] After placing the bent steel-aluminum composite formwork system on the hoisting equipment until it reaches the predetermined position, the steel-aluminum composite formwork system is then removed.

[0070] After the removed steel-aluminum composite formwork system is laid out in a straight line, the sub-connecting component 31 and the female connecting component 32 are combined to bring the fixing mechanism 3 back to the first state, thereby keeping the steel-aluminum composite formwork system in a straight line, and then construction can be carried out.

[0071] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A steel-aluminum composite formwork system for independent tall concrete columns, characterized in that, It includes vertically spliced ​​multi-segment aluminum alloy units (1), and two adjacent aluminum alloy units (1) are connected by a hinge structure (2). The hinge structure (2) is used to allow two adjacent aluminum alloy units (1) to rotate relative to each other and to limit the direction of rotation of the two. It also includes a fixing mechanism (3), which includes a detachably connected sub-connecting component (31) and a female connecting component (32). The sub-connecting component (31) and the female connecting component (32) are respectively disposed on two adjacent aluminum alloy units (1). The fixing mechanism (3) has a switchable first state and a second state. When the fixing mechanism (3) is in the first state, the sub-connecting component (31) and the female connecting component (32) are combined to lock the two adjacent aluminum alloy units (1). When the fixing mechanism (3) is in the second state, the sub-connecting component (31) and the female connecting component (32) are separated to unlock the two adjacent aluminum alloy units (1).

2. The steel-aluminum composite formwork system for independent tall concrete columns according to claim 1, characterized in that, The fixing mechanism (3) and the hinge structure (2) are offset in the circumferential direction of the aluminum alloy unit (1).

3. The steel-aluminum composite formwork system for independent tall concrete columns according to claim 1, characterized in that, The hinge structure (2) includes a first lug (21), a second lug (22) and a connector (23). On two adjacent aluminum alloy units (1), one is provided with the first lug (21) and the other is provided with the second lug (22). The first lug (21) and the second lug (22) have overlapping parts in the radial direction of the aluminum alloy unit (1), and the lug and the groove are both circular in shape. The connector (23) is located between the first lug (21) and the second lug (22), and when the connector (23) connects the first lug (21) and the second lug (22), it allows the two to rotate relative to each other.

4. The steel-aluminum composite formwork system for independent tall concrete columns according to claim 3, characterized in that, The connector (23) includes a connecting rod (231) and a limiting part (232). The first lug (21) and the second lug (22) are provided with through holes (4) in the parts that face each other. The connecting rod (231) passes through the two through holes (4). The limiting part (232) is provided at both ends of the connecting rod (231). The outer diameter of the limiting part (232) is larger than the inner diameter of the perforation (4).

5. The steel-aluminum composite formwork system for independent tall concrete columns according to claim 3, characterized in that, The hinge structure (2) is provided on each of the two adjacent aluminum alloy units (1) on opposite sides.

6. The steel-aluminum composite formwork system for independent tall concrete columns according to claim 5, characterized in that, The aluminum alloy unit (1) has a rotating edge (11), which is located between two hinge structures (2), and the rotating edges (11) of two adjacent aluminum alloy units (1) are arranged opposite to each other. The rotating edge (11) is arc-shaped, and the two opposite rotating edges (11) are recessed in opposite directions to form a clearance space (12) for the two adjacent aluminum alloy units (1) to rotate.

7. The steel-aluminum composite formwork system for independent tall concrete columns according to claim 6, characterized in that, The inner diameter of the clearance space (12) gradually decreases from the middle to the side closer to the hinge structure (2).

8. The steel-aluminum composite formwork system for independent tall concrete columns according to claim 6, characterized in that, On two adjacent aluminum alloy units (1), one is provided with a sub-connection assembly (31) and the other is provided with a female connection assembly (32); When the fixing mechanism (3) switches between the first state and the second state, the sub-connecting assembly (31) and the mother connecting assembly (32) are connected or separated on the outer side of the middle near the clearance space (12).

9. The steel-aluminum composite formwork system for independent tall concrete columns according to claim 8, characterized in that, The sub-connecting component (31) includes a first connecting frame (311), which has openings at both ends and is hollow inside; The female connecting assembly (32) includes a second connecting frame (321), a plug-in portion (322), and a blocking portion (323). The second connecting frame (321) and the first connecting frame (311) are arranged opposite each other in the axial direction of the aluminum alloy unit (1). The plug-in portion (322) is slidably inserted between the first connecting frame (311) and the second connecting frame (321). The blocking portion (323) protrudes from the side of the plug-in portion (322) away from the first connecting frame (311). The blocking portion (323) is used to stop the second connecting frame (321) from the opening edge on the side away from the first connecting frame (311).

10. A construction method for a steel-aluminum composite formwork system for independent tall concrete columns, implemented based on the steel-aluminum composite formwork system according to any one of claims 1-9, characterized in that, Includes the following steps: Separate the sub-connecting assembly (31) and the female connecting assembly (32) to place the fixing mechanism (3) in the second state; The two adjacent aluminum alloy units (1) are rotated and bent through the hinge structure (2) until the maximum bending state is reached; Each adjacent aluminum alloy unit (1) is bent in turn, so that the steel-aluminum composite template system is in a bent state as a whole; After placing the bent steel-aluminum composite formwork system on the hoisting equipment until it reaches the predetermined position, the steel-aluminum composite formwork system is then removed. After the removed steel-aluminum composite formwork system is laid out in a straight line, the sub-connecting component (31) and the female connecting component (32) are combined to put the fixing mechanism (3) back into the first state, thereby keeping the steel-aluminum composite formwork system in a straight line, and then construction can be carried out.

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