Formwork system for steel reinforced concrete construction
Through the formwork system combining curved wooden formwork and round-rotating square reinforcement, the design of pulling screws and limiting plates is used to solve the problem of insufficient stiffness and high cost of formwork reinforcement in steel concrete construction, low-cost and efficient formwork support is achieved, and construction quality and efficiency are improved.
Patent Information
- Application Number
- CN202421892774.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-06
AI Technical Summary
In the construction of traditional steel concrete, the formwork reinforcement technology has problems such as insufficient stiffness, high cost and complex construction, especially in the construction of complex shaped components such as special columns, which affects the construction quality and efficiency.
A formwork system is adopted that combines arc wood formwork and circular square reinforcement. Through the design of pulling screws and limiting plates, the arc wood formwork is fixed, avoiding interference with the steel, and ensuring structural integrity and safety.
It reduces construction costs, improves the stability and construction efficiency of the formwork system, solves the shortcomings in traditional formwork reinforcement technology, and improves the construction quality and efficiency of the SRC structure.
Smart Images
Figure CN223119517U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of steel reinforced concrete construction, and particularly relates to a formwork system for steel reinforced concrete construction. Background Technique
[0002] With the continuous progress of construction technology and the increasing diversification of engineering requirements, the steel reinforced concrete (SRC) structure has been widely used in the construction of large public buildings, industrial plants, especially large-span and heavy-load plants due to its excellent bearing capacity and good seismic performance. The SRC structure effectively improves the stiffness and strength of components through the combination of internal steel shapes and concrete, meeting the high requirements for structural performance under complex engineering conditions. Despite the many advantages of the SRC structure, the complexity and difficulty of its construction technology are still one of the key factors restricting its wide application. Especially in the formwork reinforcement technology, there are many challenges in the construction of complex-shaped components such as special-shaped columns.
[0003] In the traditional construction process of SRC structures, there are significant technical problems in the formwork reinforcement link. First, the design of the connection node between the steel column and the shear wall is complex, with a wide variety of stirrups, a large number of them, and a close spacing, which poses extremely high requirements for the stiffness and stability of the formwork. Due to the limitations of the material itself, the traditional wooden formwork system often fails to achieve sufficient stiffness to support the stirrup structure at complex nodes, resulting in frequent problems such as formwork deformation and leakage of mortar, seriously affecting the construction quality; while using steel formwork can improve the stiffness, but its high cost significantly increases the project cost, which is not conducive to cost control. Second, it is extremely inconvenient to directly punch holes at the steel flange, which brings great inconvenience to the tension reinforcement of the formwork. In traditional practices, the method of cutting the tension bolt and welding it to the shear studs of the steel shape is often used to achieve reinforcement. This method is not only cumbersome and inefficient in operation, but also the heat generated during the welding process may cause stress deformation of the shear studs, thereby affecting their shear performance and posing a potential threat to structural safety. In addition, if the tension bolt is directly passed through the main structure for reinforcement, since the tension bolt is not part of the main structure of the project, its mixing into the main structure will affect the integrity and durability of the structure. Summary of the Utility Model
[0004] Aiming at the problems existing in the prior art, the utility model provides a formwork system for steel reinforced concrete construction, aiming to realize the erection of the formwork system on the premise of using wooden formwork, reduce the construction cost, and improve the stability and construction efficiency of the formwork system.
[0005] In order to solve the above technical problems, the utility model is realized through the following technical solutions:
[0006] A formwork system for the construction of steel reinforced concrete, comprising an arc-shaped wooden formwork attached to the outer wall of the steel mesh of the steel reinforced concrete column to be constructed, and a round-to-square stiffener attached to the outer wall of the arc-shaped wooden formwork;
[0007] Two first tie rods penetrate through the first side to the second side of the round-to-square stiffener. Among them, one first tie rod is located on the first side of the steel section of the steel reinforced concrete column to be constructed, and the other first tie rod is located on the second side of the steel section of the steel reinforced concrete column to be constructed; the first side and the second side of the round-to-square stiffener are directly opposite to each other, and the first side and the second side of the steel section are directly opposite to each other;
[0008] Two second tie rods penetrate through the third side to the fourth side of the round-to-square stiffener. Among them, one second tie rod is located on the third side of the steel section of the steel reinforced concrete column to be constructed, and the other second tie rod is located on the fourth side of the steel section of the steel reinforced concrete column to be constructed; the third side and the fourth side of the round-to-square stiffener are directly opposite to each other, and the third side and the fourth side of the steel section are directly opposite to each other.
[0009] Further, the round-to-square stiffener includes a plurality of round-to-square plates arranged at intervals in the vertical direction, and a plurality of vertical connecting bars connecting the plurality of round-to-square plates. The arc surface of each round-to-square plate is in matching contact with the outer wall of the arc-shaped wooden formwork.
[0010] Further, first limiting plates are connected to the positions where the first tie rods extend out of the first side and the second side of the round-to-square stiffener, and the first limiting plates abut against a plurality of the vertical connecting bars on the corresponding side.
[0011] Further, the first limiting plates and a plurality of the vertical connecting bars on the corresponding side are arranged orthogonally.
[0012] Further, second limiting plates are connected to the positions where the second tie rods extend out of the third side and the fourth side of the round-to-square stiffener, and the second limiting plates abut against a plurality of the vertical connecting bars on the corresponding side.
[0013] Further, the second limiting plates and a plurality of the vertical connecting bars on the corresponding side are arranged orthogonally.
[0014] Further, the first end of the arc-shaped wooden formwork is in a tenon structure, and the second end is in a mortise structure; the first end is the upper end of the arc-shaped wooden formwork, and the second end is the lower end of the arc-shaped wooden formwork, or the first end is the lower end of the arc-shaped wooden formwork, and the second end is the upper end of the arc-shaped wooden formwork.
[0015] Further, both side ends of the arc-shaped wooden formwork are in a tenon structure or a mortise structure.
[0016] Compared with the prior art, the utility model has at least the following beneficial effects:
[0017] A formwork system for steel reinforced concrete construction provided by the utility model adopts a low-cost arc-shaped wooden formwork, and cooperates with a round-to-square stiffener and a tension rod to fix the arc-shaped wooden formwork. The outer side of the round-to-square stiffener is of a square structure. The tension rod passes through the round-to-square stiffener, which can effectively achieve the tension effect. The tension rod will not interfere with the steel section of the steel reinforced concrete column to be constructed. The arc-shaped wooden formwork is limited and fixed by the round-to-square stiffener, realizing the erection of the formwork system based on the wooden formwork, reducing the construction cost, and improving the stability and construction efficiency of the formwork system.
[0018] In order to make the above-mentioned objects, features and advantages of the utility model more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes a detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the specific embodiments of the utility model, the following will briefly introduce the drawings required for use in the description of the specific embodiments. Obviously, the drawings in the following description are some embodiments of the utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0020] Figure 1 Isometric view of a formwork system for steel reinforced concrete construction of the utility model;
[0021] Figure 2 Top view of a formwork system for steel reinforced concrete construction of the utility model.
[0022] In the figure: 1 - arc-shaped wooden formwork; 2 - round-to-square stiffener; 200 - round-to-square plate; 201 - vertical connecting strip; 3 - first tension rod; 4 - second tension rod; 5 - first limiting plate; 6 - second limiting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] In order to make the objects, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions of the utility model will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without creative efforts fall within the protection scope of the utility model.
[0024] Combined with Figure 1 and Figure 2As shown in the figure, the embodiment of the present utility model provides a formwork system for steel reinforced concrete construction, aiming to solve the problems of insufficient stiffness, high cost and complex construction existing in the traditional formwork reinforcement technology, and is particularly suitable for the SRC structure construction of complex-shaped members such as special-shaped columns. This formwork system mainly consists of an arc-shaped wooden formwork 1 and a round-to-square stiffening body 2, and the two are closely combined to form a stable formwork support structure.
[0025] Specifically, a formwork system for steel reinforced concrete construction includes an arc-shaped wooden formwork 1 attached to the outer wall of the steel bar mesh of the steel reinforced concrete column to be constructed and a round-to-square stiffening body 2 attached to the outer wall of the arc-shaped wooden formwork 1. That is to say, the arc-shaped wooden formwork 1 is customized according to the shape of the outer wall of the steel bar mesh of the steel reinforced concrete column to be constructed, and has sufficient strength and stiffness to withstand the lateral pressure during concrete pouring. The surface of the arc-shaped wooden formwork 1 needs to be polished to ensure it is smooth and flawless to reduce the phenomenon of mortar leakage.
[0026] Two first tension bolts 3 penetrate through the first side to the second side of the round-to-square stiffening body 2. Among them, one first tension bolt 3 is located on the first side of the steel of the steel reinforced concrete column to be constructed, and the other first tension bolt 3 is located on the second side of the steel of the steel reinforced concrete column to be constructed; the first side and the second side of the round-to-square stiffening body 2 are opposite to each other, and the first side and the second side of the round-to-square stiffening body steel are opposite to each other. Two second tension bolts 4 penetrate through the third side to the fourth side of the round-to-square stiffening body 2. Among them, one second tension bolt 4 is located on the third side of the steel of the steel reinforced concrete column to be constructed, and the other second tension bolt 4 is located on the fourth side of the steel of the steel reinforced concrete column to be constructed; the third side and the fourth side of the round-to-square stiffening body 2 are opposite to each other, and the third side and the fourth side of the round-to-square stiffening body steel are opposite to each other.
[0027] That is to say, two tension bolts (i.e., the first tension bolts 3 and the second tension bolts 4) penetrate through the first side to the second side and the third side to the fourth side of the round-to-square stiffening body 2 respectively. The arrangement positions of these tension bolts are designed to ensure that they can be located outside the four opposite sides of the steel of the steel reinforced concrete column to be constructed respectively, avoiding interference with the steel of the steel reinforced concrete column to be constructed, avoiding the influence of welding heat on the shear studs of the steel, ensuring the integrity and safety of the structure, and realizing the effective reinforcement of the formwork system.
[0028] The round-to-square solid 2 is the core component of the present utility model, and its design ingeniously designs the "round-to-square" form to adapt to the special requirements of the SRC structure. The round-to-square solid 2 has a square structure on the outside. The tie bolts passing through the round-to-square solid 2 can effectively achieve the tie effect, and the tie bolts will not interfere with the steel shapes of the steel reinforced concrete columns to be constructed. The round-to-square solid 2 is used to limit and fix the arc-shaped formwork 1. Exemplarily, the round-to-square solid 2 is made of wood, with low cost, sufficient stiffness and stability, and can effectively resist the lateral pressure during concrete pouring, preventing the arc-shaped formwork 1 from deforming.
[0029] The formwork system for steel reinforced concrete construction of the present utility model has the advantages of simple structure, convenient operation, low cost and remarkable reinforcement effect, can effectively solve the problems existing in the traditional formwork reinforcement technology, and improve the construction quality and efficiency of the SRC structure.
[0030] In one implementable manner, as Figure 1 shown, the round-to-square solid 2 includes a plurality of round-to-square plates 200 arranged at intervals in the vertical direction, and a plurality of vertical connecting strips 201 connecting the plurality of round-to-square plates 200. The arc surface of each round-to-square plate 200 is in matching contact with the outer wall of the arc-shaped formwork 1.
[0031] That is to say, the round-to-square plate 200 is the basic unit of the round-to-square solid 2, and its inner side has an arc-shaped or approximately arc-shaped structure to match the outer wall of the arc-shaped formwork 1. Specifically, the arc surface of each round-to-square plate 200 is in close contact with the outer wall of the arc-shaped formwork 1. The number and size of the round-to-square plates 200 are customized according to the actual situation of the SRC column to be constructed to ensure the reinforcement effect. These plate members are arranged at intervals in the vertical direction to form a solid barrier, effectively resisting the lateral pressure during concrete pouring. The vertical connecting strips 201 are used to connect adjacent round-to-square plates 200 and firmly fix them together to form an integral structure. These connecting strips extend in the vertical direction to ensure the stability and continuity of the round-to-square solid 2 in the height direction.
[0032] It should be noted that the round-to-square solid 2 is prefabricated in advance, and during use, it only needs to be hoisted and installed in matching with the arc-shaped formwork 1, ensuring the improvement of construction quality and efficiency.
[0033] In one implementable manner, as Figure 1 shown, the first tie bolts 3 are connected with first limiting plates 5 at the positions where they extend out of the first side and the second side of the round-to-square solid 2, and the first limiting plates 5 abut against a plurality of vertical connecting strips 201 on the corresponding sides.
[0034] Specifically, the first pair of tie rods 3 is designed to pass through the round-to-square solid 2 to achieve the tensioning effect and prevent deformation during the concrete pouring process. These tie rods penetrate into the round-to-square solid 2 from the first side (such as the left side), pass through the entire round-to-square solid, and finally extend out from the second side (such as the right side). The first limit plate 5 is installed at the positions where the first pair of tie rods 3 extends out from the first side and the second side of the round-to-square solid 2. When installing the first limit plate 5, it needs to be firmly fixed on the tie rod and ensure that it can abut against the corresponding vertical connecting bar 201. In this way, when the tie rod is subjected to an external force, the limit plate will transfer these forces to the vertical connecting bar, and then disperse them to the entire structure of the round-to-square solid 2, improving the overall bearing capacity and stability.
[0035] The first limit plate 5 effectively enhances the overall stability of the round-to-square solid by restricting the displacement of the first pair of tie rods 3. During the concrete pouring process, even under a large lateral pressure, the solid can maintain its shape and position unchanged, thus ensuring the construction quality and safety. When the first pair of tie rods 3 is subjected to tensile or compressive forces, these forces will be dispersed by the first limit plate 5 and transferred to the vertical connecting bar 201. Since the vertical connecting bar connects multiple round-to-square plates 200, these forces will be further dispersed to the entire solid structure, thereby reducing the risk of local stress and damage.
[0036] It should be noted here that in some working conditions, the first side or the second side of the round-to-square solid 2 corresponds to a shear wall. Therefore, on this side corresponding to the shear wall, the first limit plate 5 directly abuts against the shear wall and cooperates with the second pair of tie rods 4 to achieve the tensioning effect.
[0037] Preferably, the first limit plate 5 is orthogonally arranged with several vertical connecting bars 201 on the corresponding side. Orthogonal arrangement means that when the first limit plate 5 is installed, its plane is perpendicular to the axis (or the main extension direction) of several vertical connecting bars 201 on the corresponding side at an angle of 90 degrees. This arrangement has the following advantages: The orthogonal arrangement enables the first limit plate 5 to effectively disperse the forces transmitted by the first pair of tie rods 3 to the vertical connecting bars 201, and then to the entire round-to-square solid structure. Due to the short and direct force transmission path, the stability of the entire solid is significantly improved. The orthogonal arrangement reduces the loss and deviation during the force transmission process, enabling the vertical connecting bars 201 to more effectively bear the forces from the first pair of tie rods 3. This helps to improve the overall bearing capacity of the solid and ensure that no deformation or damage occurs during the concrete pouring process.
[0038] In an implementable manner, the second pair of tie rods 4 is connected with second limit plates 6 at the positions where they extend out from the third side and the fourth side of the round-to-square solid 2, and the second limit plates 6 abut against several vertical connecting bars 201 on the corresponding side.
[0039] Specifically, the second pair of tie rods 4 is similar to the first pair of tie rods 3. These tie rods penetrate into the circular-to-square solid from the third side (such as the front side) and pass through the entire solid, and finally extend out from the fourth side (such as the rear side). The second limiting plate 6 is installed at the positions where the second pair of tie rods 4 extends out from the third side and the fourth side of the circular-to-square solid 2. Similar to the first limiting plate 5, the main function of the second limiting plate 6 is to limit the displacement of the tie rods when they are subjected to tensile or compressive forces, thereby maintaining the overall stability of the circular-to-square solid. During installation, the second limiting plate 6 needs to be firmly fixed to the tie rods and ensure that it can abut against a number of vertical connecting bars 201 on the corresponding side. In this way, when the second pair of tie rods 4 is subjected to external forces, the second limiting plate 6 will transfer these forces to the vertical connecting bars, and then disperse them to the entire solid structure.
[0040] Similar to the first limiting plate 5, the second limiting plate 6 effectively enhances the overall stability of the circular-to-square solid by restricting the displacement of the second pair of tie rods 4, which helps to keep the shape and position of the circular-to-square solid 2 unchanged during the concrete pouring process, thus improving the construction quality and safety. When the second pair of tie rods 4 is subjected to tensile or compressive forces, these forces will be dispersed and transferred to the vertical connecting bars 201 by the second limiting plate 6. As one of the main load-bearing members of the solid, the vertical connecting bars can effectively disperse these forces to the entire solid structure, thereby reducing the risk of local stress and damage. By increasing the combined use of the second pair of tie rods 4 and the second limiting plate 6, the load-bearing capacity of the entire circular-to-square solid has been significantly improved.
[0041] It should be noted here that in some working conditions, the third side or the fourth side of the circular-to-square solid 2 corresponds to a shear wall. Therefore, on this side corresponding to the shear wall, the second limiting plate 6 directly abuts against the shear wall and cooperates with the second pair of tie rods 4 to achieve the tensioning effect.
[0042] Preferably, the second limiting plate 6 and a number of vertical connecting bars 201 on the corresponding side are arranged orthogonally. The orthogonal arrangement enables the second limiting plate 6 to effectively disperse the forces transmitted by the second pair of tie rods 4 to the vertical connecting bars 201, and then transmit them to the entire circular-to-square solid structure.
[0043] In an implementable manner, the first end of the arc-shaped formwork 1 is in a tenon structure, and the second end is in a mortise structure; the first end of the circular-to-square solid is the upper end of the arc-shaped formwork 1, and the second end is the lower end of the arc-shaped formwork 1, or the first end of the circular-to-square solid is the lower end of the arc-shaped formwork 1, and the second end is the upper end of the arc-shaped formwork 1.
[0044] Specifically, the arc-shaped wooden formwork 1 is designed with a mortise and tenon structure. This design enhances the connection strength between the arc-shaped wooden formworks 1 and effectively prevents the occurrence of slurry leakage. Through the mutual cooperation of the tenon and the mortise groove, a stable connection between the arc-shaped wooden formworks 1 is achieved. The mortise and tenon structure tightly connects two formworks together by physical biting, without the need for additional steel straps for fastening, and has a better effect on preventing slurry leakage. The installation and disassembly process of the mortise and tenon structure is relatively simple and fast, which can significantly improve the construction efficiency and shorten the construction period.
[0045] In an implementable manner, both side ends of the arc-shaped wooden formwork 1 are in a tenon structure or a mortise groove structure. Similarly, this design can better prevent the problem of slurry leakage and improve the construction efficiency.
[0046] The embodiment of the present utility model provides a construction method for a formwork system used in the construction of steel-concrete structures, including: installing and attaching the arc-shaped wooden formwork 1 on the outer wall of the steel bar mesh of the steel-concrete column to be constructed; installing and attaching the arc surface of the round-to-square stiffener 2 on the outer wall of the arc-shaped wooden formwork 1; passing two first tension bolts 3 through the first side to the second side of the round-to-square stiffener 2 for tension reinforcement, and making one first tension bolt 3 located on the first side of the steel of the steel-concrete column to be constructed and the other first tension bolt 3 located on the second side of the steel of the steel-concrete column to be constructed; passing two second tension bolts 4 through the third side to the fourth side of the round-to-square stiffener 2 for tension reinforcement, and making one second tension bolt 4 located on the third side of the steel of the steel-concrete column to be constructed and the other second tension bolt 4 located on the fourth side of the steel of the steel-concrete column to be constructed.
[0047] More specifically, the construction method operates as follows:
[0048] According to the construction drawings, determine the installation position and direction of the arc-shaped wooden formwork 1, use a hoisting device to lift the arc-shaped wooden formwork 1 to the position to be constructed, and attach it to the outer wall of the steel bar mesh. Use temporary supports or jigs to initially fix the arc-shaped wooden formwork 1 to prevent displacement during the installation process. Then, finely adjust the position and shape of the formwork to ensure that it meets the design requirements.
[0049] Lift and install the prefabricated round-to-square stiffening body 2 on the outer wall of the arc-shaped wooden formwork 1, ensuring tight fit between the two. Starting from the first side of the round-to-square stiffening body 2, sequentially penetrate two first tie rods 3 through the round-to-square stiffening body and the section steel until the second side. Ensure that one tie rod is on the first side of the section steel and the other is on the second side of the section steel. Then, install first limit plates 5 at the positions where the two tie rods extend out of the round-to-square stiffening body, and adjust their positions so that they abut against the vertical connecting bars 201 on the corresponding side and are orthogonally arranged with the vertical connecting bars. Repeat the above steps. Starting from the third side of the round-to-square stiffening body, install two second tie rods 4 and install second limit plates 6 at both ends respectively. Similarly, ensure that the limit plates are orthogonally arranged with the vertical connecting bars. Use nuts or other fasteners to fasten the tie rods to ensure the firm and reliable connection between the round-to-square stiffening body and the arc-shaped wooden formwork. At the same time, check whether all connection parts are firm and there is no loosening phenomenon.
[0050] After confirming that the formwork system is installed correctly, the concrete pouring work can be carried out. During the pouring process, attention should be paid to controlling the pouring speed and vibration intensity to avoid excessive impact on the formwork system. At the same time, special personnel should be arranged to monitor and maintain the formwork system to ensure construction safety and quality. After the concrete reaches the design strength, the form removal work can be carried out.
[0051] Exemplarily, the tie rods adopt M20 specification, the vertical connecting bars adopt wooden strips of 50×100mm, the arc-shaped wooden formwork adopts 15mm thick plywood, and the limit plates adopt No. 8 channel steel. The interval between two adjacent round-to-square plates constituting the round-to-square stiffening body is 197mm. The limit plates (No. 8 channel steel, with a spacing of 200 - 400mm from bottom to top, a total of 22 rows) are used to support the pressure borne by the vertical connecting bars. The limit plates are connected to each other by tie rods to form a complete column formwork support system. Two tie rods are respectively arranged in the direction parallel to the shear wall and perpendicular to the shear wall. Among them, one tie rod is arranged at an axis offset of 50mm outside the flange plate surface in the direction perpendicular to the shear wall (ensuring to be closely attached to the edge of the steel skeleton flange), and the tie rod passes through the arc-shaped wooden formwork but does not pass through the section steel column; in the direction parallel to the shear wall, the first tie rod is arranged at an axis offset of 50mm outside the flange plate surface, and the second tie rod is arranged at 150mm outside the shear wall (50mm away from the side wing of the flange plate).
[0052] The utility model is aimed at the formwork reinforcement of the special-shaped structure where the steel-concrete column with a height not exceeding 8.5 meters and a diameter not exceeding 2.8 meters is connected to the shear wall. It adopts a prefabricated round-to-square stiffening body and a design of directly reinforcing with tie rods, featuring convenient construction. This system effectively solves the problem of formwork reinforcement for the joints of tall and special-shaped steel-concrete columns and shear walls, realizes the formwork reinforcement of steel-concrete, ensures the quality of concrete pouring, and achieves good economic and social benefits. The application cases are as follows:
[0053] For a certain expansion project, the rapid transit platform uses steel reinforced concrete columns, which are circular columns with a diameter of 2.8m or special-shaped columns combining circular and square columns. The steel reinforced concrete columns are more than 8 meters high, with a large diameter, a variety of stirrup types, a large number, and a small spacing. During this period, the formwork system for steel reinforced concrete construction of the present utility model was applied to the working conditions of 24 wall-mounted steel reinforced concrete columns (with diameters of 2000mm, 2400mm, and 2800mm) of the main structure. Both the work efficiency improvement and cost reduction reached the expected level, as can be seen in Table 1.
[0054] Table 1 Comparison of effects between traditional formwork reinforcement and the use of circular-to-square formwork
[0055]
[0056] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model.
[0057] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.
[0058] In the present utility model, unless otherwise clearly specified and limited, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communicable with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0059] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.
[0060] In the present utility model, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0061] Finally, it should be noted that the above-described embodiments are only specific embodiments of the present utility model, used to illustrate the technical solutions of the present utility model, rather than limiting it. The protection scope of the present utility model is not limited thereto. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: any person skilled in the art within the technical scope disclosed by the present utility model can still modify the technical solutions recorded in the foregoing embodiments or can easily think of changes, or make equivalent replacements for some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model, and should all be covered by the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims
1. A formwork system for steel reinforced concrete construction, characterized in that, It includes an arc-shaped wooden formwork (1) attached to the outer wall of the steel bar mesh of the steel reinforced concrete column to be constructed, and a round-to-square stiffener (2) attached to the outer wall of the arc-shaped wooden formwork (1); Two first tension bolts (3) penetrate through the round-to-square stiffener (2) from the first side to the second side. Among them, one of the first tension bolts (3) is located on the first side of the steel section of the steel reinforced concrete column to be constructed, and the other first tension bolt (3) is located on the second side of the steel section of the steel reinforced concrete column to be constructed; the first side and the second side of the round-to-square stiffener (2) face each other, and the first side and the second side of the steel section face each other; Two second tension bolts (4) penetrate through the round-to-square stiffener (2) from the third side to the fourth side. Among them, one of the second tension bolts (4) is located on the third side of the steel section of the steel reinforced concrete column to be constructed, and the other second tension bolt (4) is located on the fourth side of the steel section of the steel reinforced concrete column to be constructed; the third side and the fourth side of the round-to-square stiffener (2) face each other, and the third side and the fourth side of the steel section face each other.
2. The formwork system for steel reinforced concrete construction according to claim 1, characterized in that, The round-to-square stiffener (2) includes a plurality of round-to-square plates (200) arranged at intervals in the vertical direction, and a plurality of vertical connecting bars (201) connecting the plurality of round-to-square plates (200). The arc surface of each round-to-square plate (200) is in matching contact with the outer wall of the arc-shaped wooden formwork (1).
3. The formwork system for the construction of steel reinforced concrete according to claim 2, characterized in that, At the positions where the first tension bolt (3) extends out of the first side and the second side of the round-to-square stiffener (2), a first limiting plate (5) is connected, and the first limiting plate (5) abuts against a plurality of the vertical connecting bars (201) on the corresponding side.
4. A formwork system for steel reinforced concrete construction according to claim 3, characterized in that The first limiting plate (5) and a plurality of the vertical connecting bars (201) on the corresponding side are arranged orthogonally.
5. A formwork system for steel reinforced concrete construction according to claim 2, characterized in that, At the positions where the second tension bolt (4) extends out of the third side and the fourth side of the round-to-square stiffener (2), a second limiting plate (6) is connected, and the second limiting plate (6) abuts against a plurality of the vertical connecting bars (201) on the corresponding side.
6. The formwork system for the construction of steel reinforced concrete according to claim 5, characterized in that, The second limiting plate (6) and a plurality of the vertical connecting bars (201) on the corresponding side are arranged orthogonally.
7. A formwork system for steel reinforced concrete construction according to claim 1, characterized in that The first end of the arc-shaped wooden formwork (1) is in a tenon structure, and the second end is in a mortise structure; the first end is the upper end of the arc-shaped wooden formwork (1), and the second end is the lower end of the arc-shaped wooden formwork (1), or the first end is the lower end of the arc-shaped wooden formwork (1), and the second end is the upper end of the arc-shaped wooden formwork (1).
8. A formwork system for steel reinforced concrete construction according to claim 1, characterized in that, Both side ends of the arc-shaped wooden formwork (1) are in a tenon structure or a mortise structure.