A T-shaped profile, wall formwork and column formwork reinforcement system

Abstract

The present invention discloses a T-shaped profile, wall formwork and column formwork reinforcement system. The T-shaped profile is composed of horizontal members and vertical members combined into a T-shape; the horizontal member is bilaterally symmetrical and has a saddle structure with a saddle groove in the middle; the vertical member is a rectangular channel steel structure with a width less than the length of the wing side, and the vertical member is seated on the horizontal member through the saddle groove. The open end of the vertical member constitutes a free end, and a plurality of connection holes are formed on the side wings of the vertical member; a plurality of long strip holes are formed on the bottom of the saddle groove and the bottom wall of the vertical member of the rectangular channel steel. The wall formwork and column formwork reinforcement systems are both based on the T-shaped profile to form a closed reinforcement frame with transverse back ribs. The beneficial effects of the present invention are that the T-shaped profile has a wide bearing surface, good structural stability and strong bending resistance; the wall formwork and column formwork reinforcement system reinforcement frame has a low density, a small number and a light weight, which can effectively improve the convenience of system erection, reduce labor intensity, improve erection and dismantling efficiency, reduce construction costs and improve construction efficiency.

Description

Technical Field

[0001] The invention relates to a construction formwork reinforcement technology, in particular to a T-shaped profile, wall formwork and column formwork reinforcement system. Background Art

[0002] In existing building construction, formwork is required to erect structural columns or wall cavities. The formwork is secured by a reinforcement system consisting of vertical back ribs and a reinforcement frame formed from the horizontal back ribs. The vertical back ribs primarily serve to strengthen the formwork structure. There are two approaches to installing vertical back ribs: metal formwork, where the vertical back ribs are integrally formed on the back of the formwork. Polypropylene (PP) hollow plastic formwork and plywood formwork, where the vertical back ribs are nailed to the back of the formwork. Metal formwork made from ordinary steel suffers from heavy weight, labor-intensive assembly and disassembly, and inconvenience; aluminum alloy formwork also suffers from high operating costs. Consequently, PP hollow plastic formwork and plywood are currently widely used. Installing the vertical back ribs in both PP and plywood forms is labor-intensive, requiring numerous nails and requiring high labor intensity. To address this issue, those skilled in the art have eliminated the vertical back ribs by increasing the density and width of the reinforcement frames, thereby creating a reinforcement system without vertical back ribs. However, existing measures may also result in a significant increase in the number of reinforcement frames or a significant increase in the weight of the reinforcement frames. Therefore, further improvements are needed. Summary of the Invention

[0003] The first purpose of the present invention is to address the shortcomings of existing reinforcement systems for formwork without vertical back ribs, which have a large number of reinforcement frames and are heavy. By providing a T-shaped profile, when used as a reinforcement frame for the transverse back ribs, the system can significantly reduce the number of reinforcement frames in the system without vertical back ribs. Compared to simply widening existing reinforcement frames, the T-shaped profile is lighter, reduces the intensity of mold erection and dismantling operations, and improves ease of operation. The second and third purposes of the present invention are to provide a wall formwork reinforcement system and a column formwork reinforcement system, respectively, based on the aforementioned T-shaped profile, which require fewer reinforcement frames and improve erection and dismantling efficiency.

[0004] To achieve the first purpose, the present invention adopts the following technical solution.

[0005] A T-shaped profile is formed by combining a horizontal member and a vertical member into a T shape; the horizontal member is bilaterally symmetrical and has a saddle structure with a saddle groove in the middle; the vertical member is a rectangular channel steel structure with a width less than the length of the wing side, and the vertical member is seated on the horizontal member through the cooperation of its bottom end with the saddle groove, the open end of the vertical member constitutes a free end, and a plurality of connecting holes are formed on the side wings of the vertical member; a plurality of long strip holes are formed on the bottom of the saddle groove and the bottom wall of the vertical member of the rectangular channel steel.

[0006] The T-shaped profile of the aforementioned scheme combines the horizontal member of the saddle structure with the vertical structure of the rectangular channel steel to form a T-shaped profile. By utilizing the large width of the horizontal member and the good stability of the saddle channel combined with the rectangular channel steel, the profile's bearing surface width can be increased and its structural stability can be effectively improved to enhance its bending resistance. Thus, when used in a wall or column form reinforcement system without vertical back ribs, the horizontal back ribs used to form the reinforcement frame can reduce the density of reinforcement frames and the number of reinforcement frames. Compared to the prior art method of simply widening the back ribs, this can effectively reduce the weight of the back ribs, reduce the labor intensity of setting up the mold system, reduce the workload of setting up the reinforcement frame, and improve the efficiency of the installation. The elongated holes and connecting holes can reduce weight, while the elongated holes facilitate the insertion of tie bolts or through-wall bolts, and the connecting holes facilitate the connection between adjacent back ribs, achieving a fixed connection when forming the mold reinforcement system. Vertical components can be made of metal materials such as steel or aluminum alloy, while horizontal components can be made of engineering plastics or reinforced plastics, or they can also be made of steel or aluminum alloy. When both are made of the same material, they can be connected by welding, riveting, or removable bolts or pins. When the horizontal component is made of plastic, it can be formed into a single piece during the injection molding process to form a plastic-steel or aluminum-plastic composite structure. When injection molding is used for the horizontal component, the provision of elongated holes and weight-reducing holes can also help save materials and reduce costs.

[0007] Preferably, the two sides of the horizontal member are triangular structures, which enhance stability and improve overall strength and bending resistance.

[0008] Further preferably, the horizontal member has a hollow structure on both sides, and a plurality of weight-reducing holes are distributed on its outer wall. Reduce weight and save material consumption. When the horizontal member is made of metal material, rolling or extrusion molding can be adopted; wherein, the weight-reducing holes can be formed by punching during the molding process, or can be formed by drilling using metal cutting equipment after molding. In order to simplify the molding process and mold structure, when the formed triangle cannot be closed, welding is used to complete the closure. Accordingly, the horizontal member can be formed by bending the plate, and a closed triangle can be formed by welding after molding. When metal materials are used, cold bending or hot bending with local heating can be adopted; when plastic materials are used, thermoplastic deformation molding is used.

[0009] Furthermore, preferably, the horizontal members are separated into a grid structure by crisscrossing reinforcing ribs on both sides. This reduces weight while ensuring strength. This is particularly suitable for horizontal members made of plastic, which facilitates injection molding.

[0010] Preferably, the free ends of the two side wings of the vertical member of the rectangular channel steel are bent inwards, so that the rectangular channel steel forms an inner curling channel steel structure; and the middle part of the side wings of the rectangular channel steel is formed with an inward concave section, which can improve the bending resistance.

[0011] Preferably, the length of the horizontal member is shorter than that of the vertical member, so as to facilitate the operation of fixing and connecting adjacent back ribs at the external corner when the horizontal back ribs are used.

[0012] Preferably, the horizontal member is formed by combining at least two sections in the length direction. Multiple sections can be combined to form the required length to meet the formwork reinforcement requirements of structural columns with different cross-sectional dimensions or walls of different lengths. Specifically, multiple sections can be manufactured according to various standard specifications to meet different combination requirements.

[0013] To achieve the second purpose, the present invention adopts the following technical solution.

[0014] A wall formwork reinforcement system consists of multiple plate formworks and multiple reinforcement frames. The plate formworks form a closed mold cavity on all sides, and the reinforcement frames form a closed structure based on transverse back ribs; the transverse back ribs are composed of T-shaped profiles to achieve the first purpose, adjacent transverse back ribs are fixedly connected by connecting members, and parallel transverse back ribs are fixedly connected by through-wall bolts.

[0015] The wall formwork reinforcement system employing the aforementioned solution utilizes T-shaped profiles, forming the reinforcement frame's back crossbars. This utilizes the T-shaped profiles' wide load-bearing surface, excellent structural stability, and strong bending resistance. This reduces the density and number of reinforcement frames required. Compared to the prior art approach of simply widening the back crossbars, this approach effectively reduces back crossbar weight, lowers the labor intensity of mold system installation, and reduces the workload of reinforcement frame erection, thereby improving installation efficiency. The connecting members and through-wall bolts are connected via corresponding vertical members.

[0016] Preferably, the connecting members include extension members, internal corner transition members, and corner tension members. The extension members are used to extend the T-shaped profile in the length direction, the internal corner transition members are used to connect mutually perpendicular adjacent transverse back ribs at the internal corner, and the tension members are used to connect mutually perpendicular adjacent transverse back ribs at the external corner and the external corner of the wall end.

[0017] To achieve the third purpose, the present invention adopts the following technical solution.

[0018] A column mold reinforcement system consists of multiple plate templates and multiple reinforcement frames. The plate templates surround a cylindrical mold cavity that is closed on all sides. The reinforcement frame is formed based on transverse back ribs. The transverse back ribs are composed of T-shaped profiles that achieve the first purpose. Adjacent transverse back ribs are connected by connecting components.

[0019] The column formwork reinforcement system adopts the above-mentioned solution, and the back rib crossbars forming the reinforcement frame are composed of the above-mentioned T-shaped profiles, taking advantage of their wide bearing surface, good structural stability, and strong bending resistance. The density of the reinforcement frames can be reduced, and the number of reinforcement frames can be reduced. Compared with the measure of simply widening the back ribs in the prior art, it can effectively reduce the weight of the back ribs, reduce the labor intensity of setting up the mold system, reduce the workload of setting up the reinforcement frames, and improve the efficiency of setting up. Among them, the connecting members are composed of "T"-shaped or "7"-shaped connecting members, and / or, diagonal tension members; the connecting members are connected by means of corresponding vertical members.

[0020] The beneficial effects of the present invention are that the T-shaped profile has a wide bearing surface, good structural stability and strong bending resistance; the reinforcement frames of the wall formwork and column formwork reinforcement system are set with low density, small number and light weight, which can effectively improve the convenience of system erection, reduce labor intensity, improve erection and dismantling efficiency, reduce construction costs and improve construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the cross-sectional structure of the T-shaped profile in the present invention.

[0022] Figure 2 This is a schematic axonometric view of the T-shaped profile structure of Example 1 of the present invention.

[0023] Figure 3 In the present invention Figure 1 Top view of .

[0024] Figure 4 It is a schematic axonometric view of the T-shaped profile structure of Example 2 and Example 3 of the present invention.

[0025] Figure 5 It is a schematic axonometric diagram of the structure of the horizontal component in Example 2 of the present invention.

[0026] Figure 6 It is a schematic axonometric view of the T-shaped profile structure of Example 4 of the present invention.

[0027] Figure 7 It is a schematic axonometric diagram of a partial structure of the wall formwork reinforcement system of Example 5 of the present invention.

[0028] Figure 8 It is a schematic axonometric diagram of the structure of the internal angle transition component in Example 5 of the present invention.

[0029] Figure 9 It is a schematic axonometric diagram of the structure of the diagonal tension member of Example 5 of the present invention.

[0030] Figure 10 This invention is attached Figure 7 Enlarged view of part A in .

[0031] Figure 11It is a schematic axonometric diagram of the structure of the diagonal tension member in Example 5 of the present invention.

[0032] Figure 12 It is a schematic axonometric diagram of a partial structure of the column form reinforcement system of Example 6 of the present invention.

[0033] Figure 13 It is a structural schematic axonometric diagram of the "7"-shaped connecting component in Example 6 of the present invention.

[0034] Figure 14 It is a schematic axonometric diagram of the partial structure of the column form reinforcement system of Example 7 of the present invention.

[0035] Figure 15 It is a structural schematic axonometric diagram of the "7"-shaped connecting component in Example 7 of the present invention. DETAILED DESCRIPTION

[0036] The present invention will be further described below with reference to the accompanying drawings, but the present invention is not limited to the scope of the embodiments.

[0037] Example 1, see Figure 1 、 Figure 2 、 Figure 3 A T-shaped profile is composed of a horizontal member 1 and a vertical member 2 combined into a T shape; the horizontal member 1 is bilaterally symmetrical and has a saddle structure with a saddle groove in the middle; the vertical member 2 is a rectangular channel steel structure with a width less than the length of the wing edge, and the vertical member 2 is seated on the horizontal member 1 through the cooperation of its bottom end and the saddle groove, and the open end of the vertical member 2 constitutes a free end, and a plurality of connecting holes 3 are formed on the side wings of the vertical member 2; a plurality of long strip holes 4 are formed on the bottom of the saddle groove and the bottom wall of the vertical member 2 of the rectangular channel steel.

[0038] The horizontal member 1 has two hollow triangular structures on both sides, with multiple weight-reducing holes 1a distributed on its outer walls. The free ends of the two wings of the vertical member 2 of the rectangular channel steel are bent inward, forming bending means 2a toward the bottom of the channel, giving the rectangular channel steel an inner-curled channel structure. The middle of the wing of the rectangular channel steel has a concave section 2b, and the connection hole 3 is located in the concave section 2b.

[0039] In this embodiment, the horizontal component 1 and the vertical component 2 can be integrated by welding or injection molding.

[0040] In this embodiment, the horizontal member 1 and the vertical member 2 are split structures. When used to form the transverse back ribs and reinforcement frame of the formwork reinforcement system, the two press the vertical member 2 onto the horizontal member 1 through the connecting parts between the transverse back ribs, and the horizontal member 1 is loaded on the back of the formwork.

[0041] In this embodiment, the horizontal member 1 and the vertical member 2 have the same length.

[0042] Example 2, see Figure 4 and Figure 5 The horizontal members 1 are separated into a grid structure by a plurality of crisscrossing reinforcing ribs on either side. The longitudinal ribs 1b extend along the length, while the transverse ribs 1c extend along the width. The longitudinal ribs 1b, which form the sidewalls of the saddle groove, are provided with first fixing holes 1d for secure connection to the vertical members 2. Second fixing holes (not shown) are provided at corresponding locations on the vertical members 2.

[0043] In this embodiment, the horizontal member 1 and the vertical member 2 can also be fixedly connected together by passing bolts, rivets or pins through the first fixing connection hole 1d and the second fixing connection hole.

[0044] The rest of the structure of this embodiment is the same as that of embodiment 1 and will not be described again here.

[0045] Example 3, see Figure 4 , the length of the horizontal member 1 is smaller than the length of the vertical member 2.

[0046] The remaining structures of this embodiment are the same as those of embodiment 1 or 2 and will not be described again here.

[0047] Example 4, see Figure 6 The horizontal member 1 is formed by combining at least two sections in the length direction.

[0048] The remaining structures of this embodiment are the same as those of Embodiment 1, 2 or 3 and will not be described again here.

[0049] In the above embodiment, the single-section length of the horizontal member 1 can be manufactured in five specifications: 100mm, 150mm, 200m, 300mm and 600mm. By adopting a single-section structure and a structure composed of at least two sections, various length specifications between 100mm and 3000mm with increments of 50mm can be obtained.

[0050] Example 5, see Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 11 A wall formwork reinforcement system consists of multiple plate formworks 9 and multiple reinforcement frames. The plate formworks form a closed mold cavity on all sides, and the reinforcement frame forms a closed structure based on the transverse back ribs; the transverse back ribs are composed of T-shaped profiles 10 of embodiments 1, 2 or 4, and adjacent transverse back ribs are fixedly connected by connecting members, and parallel transverse back ribs are fixedly connected by through-wall bolts 5.

[0051] The connecting members include an extension member 6, a female corner transition member 7, and a corner tension member 8. The extension member 6 is used to extend the T-shaped profile 10. It has a U-shaped clip structure, with its two side walls clipping onto the outside of the notch of the vertical member 2. Through holes 6a provided therein, it is fixedly connected to the corresponding vertical member 2 via bolts or pins. The female corner transition member 7 is T-shaped, with both the longitudinal and transverse sections of the T composed of U-shaped clip structures. Both sections are fixedly connected to the corresponding vertical member 2 via bolts or pins through holes 7a provided on the corresponding side walls. The tensioning member 8 is used at the corners of the external angles and at the connection between the transverse back ribs at the wall ends and the transverse back ribs on the wall surface. It includes a pair of tensioning screws 8a and two tensioning bearing members. The tensioning bearing member is composed of a U-shaped clamp 8b and an angle steel 8c welded to the back of the bottom of the groove of the U-shaped clamp 8b. One edge of the angle steel 8c forms a tensioning bearing surface inclined to the back of the bottom of the groove. The tensioning bearing surface and the bottom wall of the groove of the U-shaped clamp 8b are provided with long through holes 8e for the tensioning screws 8a to pass through. The U-shaped clamp 8b is fixedly connected to the corresponding vertical members 2 by through-holes 8d set on the corresponding side walls through through-bolts or pins. The tensioning screws 8a are fixedly connected to the tensioning bearing members through the tightening nuts at both ends, thereby forming a fixed connection between the corresponding transverse back ribs.

[0052] In this embodiment, in order to facilitate the connection between the extension member 6 and the corresponding vertical member 2, the through hole 6a at one end is in the shape of an elongated strip. In order to reduce weight, the bottom wall of the U-shaped card is also provided with an elongated weight-reducing hole 6b.

[0053] The remaining structures of this embodiment are the same as those of Embodiment 1, 2 or 4 and will not be described again here.

[0054] The T-shaped profile 10 in this embodiment can also adopt the structure of Example 3. When the structure of Example 3 is adopted, the remaining structure is the same as that of Example 34 and will not be repeated here.

[0055] Example 6, see Figure 12 and Figure 13 A column mold reinforcement system consists of multiple plate templates and multiple reinforcement frames. The plate templates form a cylindrical mold cavity that is closed on all sides. The reinforcement frame is formed based on transverse back ribs. The transverse back ribs are composed of T-shaped profiles 10 of Examples 1, 2 or 4. Adjacent transverse back ribs are connected by connecting components.

[0056] Among them, the connecting members are composed of two "7"-shaped connecting members 11 and two diagonal tension members 8. The two "7"-shaped connecting members 11 are distributed on one group of diagonals, and the two diagonal tension members 8 are distributed on another group of diagonals; the connecting members are connected by means of corresponding vertical members 2.

[0057] The "7"-shaped connecting member 11 is formed by welding a rectangular channel steel section 11a and a rectangular flat tube section 11b. The two side walls of the rectangular channel steel section 11a are stuck on the outside of the notch of the vertical member 2, and are fixedly connected to the corresponding vertical member 2 by passing bolts or pins through the through holes 11c set thereon; the rectangular flat tube section 11b is inserted into the corresponding vertical member 2 from the long hole at the bottom of another horizontal back rib groove, and is fixedly connected to the corresponding vertical member 2 by passing bolts or pins through the connecting holes 11d set thereon.

[0058] The structure and connection form of the diagonal tension member 8 are the same as those in Example 5.

[0059] The remaining structures of this embodiment are the same as those of Embodiment 1, 2 or 4 and will not be described again here.

[0060] In this embodiment, the four connecting members may be composed of only the “7”-shaped connecting members 11 , or may be composed of only the diagonal tension members 8 .

[0061] In this embodiment, the "7"-shaped connecting member 11 can also be replaced by a "T"-shaped connecting member.

[0062] Example 7, see Figure 14 and Figure 15 The transverse back ribs are composed of the T-shaped profile 10 of Example 3.

[0063] In this embodiment, the 7-shaped connecting member 11 is formed by welding two vertical rectangular channel steel segments 11e together, with the front end of one segment abutting against the back of the bottom of the other segment. The two side walls of the corresponding rectangular channel steel segment 11e are clamped on the outside of the notch of the vertical member 2, and are fixedly connected to the corresponding vertical member 2 by passing bolts or pins through the through holes 11f provided thereon.

[0064] The T-shaped profile 10 of this embodiment is the same as that of embodiment 3, and the rest of the structure is the same as that of embodiment 6, which will not be described again here.

[0065] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A T-shaped profile, which is formed by combining a horizontal member (1) and a vertical member (2) into a T-shape; characterized in that: The horizontal member (1) is symmetrical on both sides and has a saddle structure with a saddle groove in the middle; the vertical member (2) is a rectangular channel steel structure with a width less than the length of the wing side, and the vertical member (2) is seated on the horizontal member (1) through the cooperation of its bottom end with the saddle groove, and the open end of the vertical member (2) constitutes a free end, and a plurality of connecting holes (3) are formed on the side wings of the vertical member (2); a plurality of long strip holes (4) are formed on the bottom of the saddle groove and the bottom wall of the vertical member (2) of the rectangular channel steel; the T-shaped profile is used in a wall form or column form reinforcement system without vertical back ribs, as a horizontal back rib forming a reinforcement frame; Both sides of the horizontal member (1) are triangular structures; The free ends of both side wings of the vertical member (2) of the rectangular channel steel are bent inwards, so that the rectangular channel steel forms an inner curling channel steel structure; and an inner concave section is formed in the middle of the side wings of the rectangular channel steel.

2. The T-shaped profile according to claim 1, characterized in that The horizontal member (1) has a hollow structure on both sides, and a plurality of weight-reducing holes are distributed on its outer wall.

3. The T-shaped profile according to claim 1, characterized in that Both sides of the horizontal member (1) are divided into a grid structure by crisscrossing reinforcement ribs.

4. The T-shaped profile according to any one of claims 1 to 3, characterized in that: The length of the horizontal member (1) is shorter than the length of the vertical member (2).

5. The T-shaped profile according to any one of claims 1 to 3, characterized in that: The horizontal member (1) is formed by combining at least two sections in the length direction.

6. A wall formwork reinforcement system, comprising a plurality of plate formworks and a plurality of reinforcement frames, wherein the plate formworks form a closed mold cavity, and the reinforcement frames form a closed structure based on the transverse back ribs; characterized in that: The transverse back ribs are composed of the T-shaped profiles according to any one of claims 1 to 5, adjacent transverse back ribs are fixedly connected by connecting members, and parallel transverse back ribs are fixedly connected by through-wall bolts.

7. The wall formwork reinforcement system according to claim 6, characterized in that: The connecting components include extension components, internal angle transition components and corner tension components.

8. A column formwork reinforcement system, comprising a plurality of plate formworks and a plurality of reinforcement frames, wherein the plate formworks enclose a cylindrical mold cavity which is closed on all sides, and the reinforcement frames are formed based on transverse back ribs, characterized in that: The transverse back ribs are composed of the T-shaped profiles according to any one of claims 1 to 5, and adjacent transverse back ribs are connected by connecting components.

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