A concrete frame column formwork reinforcing device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ROAD & BRIDGE INT CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-08-07
AI Technical Summary
[0003]传统混凝土矩形框柱模板的加固通常使用钢管及对拉螺杆加固,常因卡具间距过大、夹紧力不足或螺栓配置数量不够,导致模板在混凝土振捣侧压力作用下出现局部失效
[0018] By connecting multiple fastening rods end-to-end, inserting a fastening insert into a through slot located on the outer side of the first end, and then, ensuring the tail end does not move downwards, striking the fastening insert with external force, the portion of the fastening insert submerged in the through slot gradually widens. The first end, which is being pressed against by it, is forced to move closer to the concrete frame column formwork, and the distance between two relatively fastening rods decreases, thus achieving a tight fit. This fastening method has the following beneficial effects:
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Figure CN224606023U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and in particular to a concrete frame column formwork reinforcement device. Background Technology
[0002] With the development of the construction industry, the increasing number of high-rise and frame structure buildings has led to a significant increase in the demand for rectangular frame columns. As the core supporting component in a frame structure, the frame column plays a crucial role in transferring vertical loads to the foundation, and its construction quality directly affects the structural safety and long-term performance of the building.
[0003] Traditional concrete rectangular frame column formwork reinforcement typically uses steel pipes and tie rods. However, this often results in localized formwork failure under the lateral pressure of concrete vibration due to excessive clamp spacing, insufficient clamping force, or an inadequate number of bolts. This process defect can lead to quality problems such as bulging, necking, or warping, and in severe cases, even cause tie rod breakage and formwork bursting.
[0004] The construction quality of frame columns has a decisive impact on building safety: First, their mechanical properties directly determine the structural stability of the building, and quality defects may lead to structural instability or even collapse; second, as major load-bearing components, quality defects in frame columns will accelerate structural fatigue aging, significantly shorten the building's service life, and substantially increase later maintenance and reinforcement costs. Therefore, ensuring the construction quality of frame columns is a crucial link in guaranteeing building safety and durability. Utility Model Content
[0005] The purpose of this utility model is to provide a concrete frame column formwork reinforcement device to solve the problems existing in the prior art, improve the reinforcement quality of concrete rectangular column formwork, reduce construction safety risks, and thus achieve the goals of saving costs and ensuring safety.
[0006] To achieve the above objectives, this utility model provides the following solution:
[0007] A reinforced concrete frame column formwork device includes a reinforced assembly, at least one set of the reinforced assembly surrounding the outer periphery of the concrete frame column formwork; the reinforced assembly includes fastening rods and fastening inserts, with multiple fastening rods connected end-to-end to form a closed loop; each fastening rod includes a head end and a tail end, the head end having a receiving area for accommodating and limiting the tail ends of adjacent fastening rods, and the tail end having a through groove for inserting the fastening insert; the width of the fastening insert gradually decreases from top to bottom, and the two sides of the fastening insert in the width direction are used to abut against one inner wall of the through groove and the side of the head end of the adjacent fastening rod to achieve fastening.
[0008] In an exemplary embodiment, the receiving area is a U-shaped groove formed by bending the first end.
[0009] In one exemplary embodiment, the fastening rod is a channel steel.
[0010] In an exemplary embodiment, the ratio of the bottom wall width to the side wall height of the channel steel is 4:1.
[0011] In an exemplary embodiment, the inner wall of the U-shaped groove is the bottom wall of the channel steel.
[0012] In one exemplary embodiment, the number of through slots is a plurality of slots spaced at intervals.
[0013] In one exemplary embodiment, the through slots are provided in at least two rows, with adjacent rows of through slots being staggered.
[0014] In one exemplary embodiment, a telescopic support mechanism is further included, which is disposed between two sets of the reinforcing components arranged vertically, for supporting the upper reinforcing component and adjusting the distance between the two adjacent sets of the reinforcing components.
[0015] In one exemplary embodiment, the number of telescopic support mechanisms between the two sets of reinforcement components is at least two, and the at least two telescopic support mechanisms are evenly arranged around the concrete frame column formwork.
[0016] In an exemplary embodiment, the telescopic support mechanism includes a lower support, a jack, and an upper support, which are connected sequentially from bottom to top.
[0017] The present invention achieves the following technical advantages over the prior art:
[0018] By connecting multiple fastening rods end-to-end, inserting a fastening insert into a through slot located on the outer side of the first end, and then, ensuring the tail end does not move downwards, striking the fastening insert with external force, the portion of the fastening insert submerged in the through slot gradually widens. The first end, which is being pressed against by it, is forced to move closer to the concrete frame column formwork, and the distance between two relatively fastening rods decreases, thus achieving a tight fit. This fastening method has the following beneficial effects:
[0019] 1. Eliminate localized stress concentrations to effectively prevent mold bursting:
[0020] By connecting multiple fastening rods end to end to form a rigid closed-loop structure, the reinforcement force is evenly and continuously distributed around the entire outer perimeter of the frame column formwork.
[0021] The insertion of the fastening insert drives the heads of adjacent fastening rods to continuously and synchronously tighten towards the template. This radially uniform pressure application method avoids the local template support weaknesses caused by excessive clamp spacing or insufficient clamping force in traditional methods.
[0022] The closed-loop structure and uniform pressure can effectively resist the all-round lateral pressure generated by concrete vibration, greatly reducing the risk of local bulging, necking, warping or even bursting.
[0023] 2. Provides stable and reliable fastening force to prevent loosening and failure:
[0024] After the fastening plug is inserted and tapped in, its side forms a strong self-locking friction and mechanical contact with the inner wall of the through groove and the adjacent first end side.
[0025] This passive locking mechanism (which relies on the shape of the structure to achieve locking) is less likely to fail due to vibration or stress relaxation than active locking that relies on bolt preload. It ensures the long-lasting and stable clamping force of the reinforcement device throughout the concrete pouring and vibration process, and overcomes the hidden dangers of "unclamped template" or loose bolts in traditional methods.
[0026] 3. Simplify operation and improve construction efficiency and reliability:
[0027] The structural design is simple (fastening rod + wedge insert), eliminating the need for a large number of tie bolts, nuts, washers and complex clamping systems.
[0028] The installation process mainly involves splicing the beginning and end to form a closed loop and hammering in the wedge-shaped plug. The operation steps are greatly simplified, reducing the possibility of quality problems caused by human factors (such as insufficient number of bolts or insufficient tightening torque).
[0029] This avoids the potential breakage risk and serious consequences of traditional tie rods.
[0030] 4. Ensure the quality of frame column forming and structural safety:
[0031] By effectively preventing formwork bursting and ensuring formwork stability, this device can precisely control the geometric dimensions of concrete frame columns (such as cross-sectional dimensions and verticality) and reduce surface defects (such as bulging and necking).
[0032] High-quality frame columns are fundamental to a building's ability to bear vertical loads and ensure overall structural stability. This device improves the density, strength, and regularity of the frame columns from the construction stage, helping to achieve the mechanical properties required by the design.
[0033] High-quality frame columns directly extend the service life of buildings, slow down the rate of structural fatigue and aging, and reduce the high maintenance and reinforcement costs and safety risks caused by frame column quality problems in the later stages. Attached Figure Description
[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0035] Figure 1 This is a structural schematic diagram of a concrete frame column formwork reinforcement device disclosed in a specific embodiment of the present utility model.
[0036] Figure 2 for Figure 1 Schematic diagram of the central fastening rod;
[0037] Figure 3 for Figure 1 Enlarged view of section A in the middle;
[0038] Figure 4 To make Figure 1 A schematic diagram of the raw materials used in the reinforcement components;
[0039] Figure 5 for Figure 1 Schematic diagram of the structure of the fastening plug;
[0040] Among them, 1. Reinforcing components; 2. Concrete frame column formwork; 3. Fastening rods; 31. First end; 32. Last end; 33. Receiving area; 34. Through groove; 4. Fastening plug; 5. Channel steel; 51. Bottom wall; 52. Side wall; 6. Supporting mechanism; 7. Steel plate. Detailed Implementation
[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0042] The purpose of this utility model is to provide a concrete frame column formwork reinforcement device to solve the problems existing in the prior art, improve the reinforcement quality of concrete rectangular column formwork, reduce construction safety risks, and thus achieve the goals of saving costs and ensuring safety.
[0043] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0044] Please refer to Figures 1 to 5 This embodiment provides a reinforcement device for concrete frame column formwork, including reinforcement components 1. At least one set of reinforcement components 1 surrounds the outer periphery of the concrete frame column formwork 2. The reinforcement components 1 include fastening rods 3 and fastening inserts 4, with multiple fastening rods 3 connected end-to-end to form a closed loop. The fastening rod 3 includes a head end 31 and a tail end 32. The head end 31 is provided with a receiving area 33 for accommodating and limiting the tail end 32 of adjacent fastening rods 3, and the tail end 32 has a through groove 34 for inserting the fastening insert 4. The width of the fastening insert 4 gradually decreases from top to bottom, and the two sides of the fastening insert 4 in the width direction are used to abut against one inner wall of the through groove 34 and the side of the head end 31 of the adjacent fastening rod 3 to achieve fastening.
[0045] The working principle of this embodiment is as follows:
[0046] Please refer to Figure 1 and Figure 4 Multiple fastening rods 3 are connected end to end, and the adjacent head ends 31 are placed into the receiving area 33 of the tail end 32 to form a closed loop. Then, the fastening plug 4 is inserted into the through groove 34 located outside the head end 31. Then, while ensuring that the tail end 32 does not move downward, the fastening plug 4 is struck with external force. During this process, the part of the fastening plug 4 that is inserted into the through groove 34 becomes wider and wider, and the head end 31 that is abutted by it is forced to move towards the concrete frame column formwork 2. The distance between the two fastening rods 3 set opposite to each other becomes smaller and smaller, thereby achieving fastening.
[0047] Specifically, the receiving area 33 has various forms, such as a U-shaped groove formed by bending the first end 31, or a through hole opened at the first end 31. In this embodiment, the U-shaped groove, which is easier to process, is preferred.
[0048] In this embodiment, please refer to Figure 4 The fastening rod 3 is made of channel steel 5. To ensure the bending quality of the U-shaped channel, the ratio of the width of the bottom wall 51 to the height of the side wall 52 of the channel steel 5 is 4:1. In a specific application example, the dimensions of the channel steel 5 are 1640mm × 100mm × 25mm × 10mm, that is, 1640mm in length, 100mm in width of the bottom wall 51, 25mm in height of the side wall 52, and 10mm in thickness. During bending, the bottom wall of the channel steel serves as the inner wall of the U-shaped channel.
[0049] The number of through slots 34 is multiple, spaced apart, to accommodate concrete frame column formwork 2 of different sizes.
[0050] As a preferred embodiment, the through slots 34 are provided in at least two rows, with adjacent rows of through slots 34 staggered. This allows the outer side of the first end 31 to be located at the interval between one row of through slots 34, so that when the fastening plug 4 cannot be inserted, another row of through slots 34 is available, thus achieving complete coverage of all sizes.
[0051] Please refer to Figure 5 The fastening insert 4 is made of steel plate 7, which, in a specific application example, measures 150mm × 40mm × 8mm. Cutting a steel plate 7 diagonally yields two fastening inserts 4. The corresponding through slots 34 can be 40mm × 10mm in size, spaced 10mm apart.
[0052] As a preferred embodiment, a telescopic support mechanism 6 is provided between the two sets of reinforcement components 1 arranged vertically, which is used to support the upper reinforcement component 1 and adjust the distance between the two adjacent sets of reinforcement components 1.
[0053] In this embodiment, the telescopic support mechanism 6 specifically includes a lower support part 61, a jack 62, and an upper support part 63 connected sequentially from bottom to top.
[0054] When installing the bottom first set of reinforcing components 1, other supports such as pads can be used for support. When installing the top second set of reinforcing components 1, the telescopic support mechanism 6 is fixed to the fastening rod 3 of the first set of reinforcing components 1 through the lower support part 61, and the number of telescopic support mechanisms 6 between the two sets of reinforcing components 1 is at least two, and they are evenly distributed around the concrete frame column formwork 2. After adjusting the extension length of the jack 62 according to the construction requirements, the fastening rod 3 of the second set of reinforcing components 1 is placed on the upper support part 63, and then assembled.
[0055] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this utility model, and do not imply or require that the device or element referred to have a specific orientation or construction method, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish the objects of description and should not be construed as limiting importance or order, and the features defined by such terms may explicitly or implicitly include one or more of those features. Unless otherwise stated, "a plurality of" in the description of this utility model refers to two or more.
[0056] The terms "installation," "connection," and "joining" should be interpreted broadly, unless otherwise explicitly defined, to include, but are not limited to, fixed connections, detachable connections, or integrally formed connections; mechanical or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art can understand their meaning based on the specific technical solution. The fixed connections involved in this utility model, unless otherwise stated, include both detachable fixed connections (such as bolt and screw connections) and non-detachable fixed connections (such as riveting and welding), and may also include integral structures achieved through an integral forming process (such as casting) (except where integral forming is clearly impossible).
[0057] Unless otherwise stated, the terms used in any of the technical solutions disclosed in this utility model to indicate positional relationships or shapes cover states or shapes that are similar to, close to, or adjacent to them.
[0058] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.
[0059] It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0060] In the embodiments of this application, the same reference numerals are used to denote the same component or the same part.
[0061] Any adaptive changes made according to actual needs are within the protection scope of this utility model.
[0062] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A reinforcement device for concrete frame column formwork, characterized in that: The reinforcement includes a reinforcement component (1), at least one set of the reinforcement components (1) surrounding the outer periphery of the concrete frame column formwork (2); the reinforcement component (1) includes a fastening rod (3) and a fastening insert (4), and multiple fastening rods (3) are connected end to end to form a closed loop; the fastening rod (3) includes a head end (31) and a tail end (32), the head end (31) is provided with a receiving area (33) for accommodating and limiting the tail end (32) of the adjacent fastening rod (3), and the tail end (32) is provided with a through groove (34) for the fastening insert (4) to be inserted; the width of the fastening insert (4) gradually decreases from top to bottom, and the two sides of the fastening insert (4) in the width direction are used to abut against one side of the inner wall of the through groove (34) and the side of the head end (31) of the adjacent fastening rod (3) to achieve fastening.
2. The concrete frame column formwork reinforcement device according to claim 1, characterized in that: The accommodating area (33) is a U-shaped groove formed by bending the first end (31).
3. The concrete frame column formwork reinforcement device according to claim 2, characterized in that: The fastening rod (3) is a channel steel (5).
4. The concrete frame column formwork reinforcement device according to claim 3, characterized in that: The ratio of the width of the bottom wall (51) to the height of the side wall (52) of the channel steel (5) is 4:
1.
5. The concrete frame column formwork reinforcement device according to claim 3, characterized in that: The inner wall of the U-shaped groove is the bottom wall (51) of the channel steel (5).
6. The concrete frame column formwork reinforcement device according to claim 1, characterized in that: The number of through slots (34) is multiple, spaced apart.
7. The concrete frame column formwork reinforcement device according to claim 6, characterized in that: The through groove (34) has at least two rows, and the through grooves (34) in adjacent rows are staggered.
8. The concrete frame column formwork reinforcement device according to any one of claims 1-7, characterized in that: It also includes a telescopic support mechanism (6), which is disposed between two sets of the reinforcing components (1) arranged vertically, for supporting the upper reinforcing component (1) and adjusting the distance between the two adjacent sets of the reinforcing components (1).
9. The concrete frame column formwork reinforcement device according to claim 8, characterized in that: The number of telescopic support mechanisms (6) between the two sets of the reinforcement components (1) is at least two, and at least two telescopic support mechanisms (6) are evenly arranged around the concrete frame column template (2).
10. The concrete frame column formwork reinforcement device according to claim 9, characterized in that: The telescopic support mechanism (6) includes a lower support part (61), a jack (62) and an upper support part (63) connected sequentially from bottom to top.