Fair-faced formwork abutted seam reinforcing structure
By using fixed unit structures, including connectors and back ribs, at the joints of the template, the problem of poor template joint quality was solved, the stability of the template and the precise alignment of the joints were achieved, and the high-quality forming of the giant structural columns was ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-03
AI Technical Summary
In the construction of fair-faced concrete for giant structural columns, poor quality of formwork joints leads to high grout leakage rate and large misalignment of joints, making it difficult to meet high-standard quality requirements.
The fixed unit structure includes connectors and back ribs. The connectors fix the template to both sides of the template joint, and the fasteners and back ribs limit and fix it, reducing the gap between the joints and improving the stability of the template.
It effectively reduces the misalignment size of template joints, improves joint quality, avoids bulging and bursting of the formwork during the pouring process, and ensures the forming quality of structural columns.
Smart Images
Figure CN224078683U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete pouring technology, specifically to a reinforced structure for joints in fair-faced concrete formwork. Background Technology
[0002] With the increasing demands for both structural safety and decorative effect in modern large-scale public buildings (such as high-speed rail stations and convention centers), the construction of mega-structural columns using fair-faced concrete faces various technical challenges and requirements. During the construction of these mega-structural columns to meet high standards, formwork needs to be erected to create a precast hollow column shape, facilitating the subsequent pouring of concrete to form the precast hollow column structure.
[0003] However, during the construction of the template, multiple templates are used to be spliced together and reinforced to form a columnar structure. After the templates are spliced together, seams will be produced. The quality of the seams determines the quality of the giant structural columns that are formed later.
[0004] In the construction of super high-rise buildings (>6m) and large cross-sections (such as 2.7m×2.7m square columns), conventional wooden / steel formwork assembly technology results in a grout leakage rate of 5%-8% due to incomplete closure of formwork joints, and the misalignment of the joints is >3mm, which makes it difficult to meet the Class I surface quality requirements of fair-faced concrete. Utility Model Content
[0005] This utility model provides a reinforcement structure for the joints of clear water formwork, which aims to improve the quality of formwork joints and reduce the misalignment size at the joints.
[0006] This utility model is achieved through the following technical solution: a reinforced structure for the joint of a fair-faced concrete formwork, comprising multiple formworks, which are spliced together to form a precast hollow column for pouring concrete, with a formwork joint formed between adjacent formworks, and also including a fixing unit for fixing two adjacent formworks, the fixing unit comprising a fixing member, a connecting member and two back ribs arranged side by side, the two sides of the connecting member being fixedly connected to the formworks on both sides of the formwork joint; one end of the fixing member passes through one side of the two back ribs and is connected to the connecting member, and the other end of the fixing member is located on the other side of the two back ribs and is limited and fixed on the back ribs.
[0007] Compared with existing technologies, this solution has the following advantages and beneficial effects:
[0008] In this solution, connectors are fixedly attached to the templates on both sides of the template joint. The adjacent templates are connected by the connectors, which reduces the gap between the two adjacent templates and makes the joint surface of the two adjacent templates flatter. This reduces the misalignment size at the template joint and improves the joint quality. At the same time, it avoids the situation of formwork bulging and bursting at the template joint when pouring concrete in the precast hollow column formed by multiple templates, which would affect the pouring quality.
[0009] In addition, in the fixing unit of this solution, by setting back ribs and fixing parts, and connecting the fixing parts with the connecting parts, and limiting and fixing them with the back ribs, the position of the template can be limited and fixed, thus ensuring the stability of the template.
[0010] Furthermore, the fixing unit has multiple sets of fixing components and connectors, and the number of fixing components and connectors in the fixing unit is the same. The multiple sets of fixing components and multiple sets of connectors are distributed at intervals along the length direction of the template seam.
[0011] In this design, the number of fasteners and connectors is the same, while the two side-by-side back ribs can be set as a single set. This allows multiple sets of fasteners and connectors to be used in combination. These multiple sets of fasteners and connectors are distributed at intervals along the length of the template joint, which can fix the position of the template joint along its length, further enhancing the reinforcement of the template joint, making the template more stable after assembly, and further improving the joint quality and reducing the misalignment size of the joint.
[0012] Furthermore, the connector includes two angle steels, which are respectively fixedly connected to the templates on both sides of the template joint.
[0013] The connector in this solution includes two angle steels, which allows one side of the angle steel to connect to the template, while the other side of the angle steel is used for fixing and limiting the connection. The flat sides of the angle steel make it easier to connect and fix to the template.
[0014] Furthermore, each of the two angle steels has a connecting hole facing each other on one side. The fastener includes a fixing rod and a limiting buckle. One end of the fixing rod is provided with a hook, which can hook into the connecting hole.
[0015] The fixing rod has an external thread on the side away from the hook, and the limiting buckle is threadedly connected to the fixing rod. The limiting buckle can abut against one side of the two rows of back ribs.
[0016] In this design, two opposite connecting holes are provided on one side of the two angle steels. This allows the hooks on the fixing rods to hook into these connecting holes, thereby tightening and fixing the template and improving its stability. In this design, the limiting buckle connects to the fixing rod and abuts against the back rib, thus achieving the function of tightening, limiting, and fixing the template.
[0017] Furthermore, the limiting buckle is a butterfly buckle.
[0018] The limiting buckle in this solution uses a butterfly buckle. The rounded structure on both sides of the butterfly buckle abuts against the back rib to achieve the function of limiting and stopping. In this way, the two back ribs arranged side by side can achieve the function of limiting and fixing.
[0019] Furthermore, the two angle steels are connected to each other and are close to each other.
[0020] In this design, the two angle steels are connected to each other and are close to each other, which helps to reduce the gap between the two templates. At the same time, the connection between the two angle steels can improve the assembly accuracy.
[0021] Furthermore, a fixing hole is provided on one side of each of the two angle steels, and the two angle steels are fixedly connected by inserting fasteners into the fixing holes.
[0022] In this design, fixing holes are provided on one side of the two angle steels to facilitate the insertion of fasteners into the fixing holes for fixation, such as by inserting bolts to fix the two angle steels. The fixing holes provide a connection point for the connection between the two angle steels.
[0023] Furthermore, the prefabricated hollow column formed by the splicing of multiple templates is provided with template fasteners on its outer side, and the multiple templates are fastened together by the template fasteners.
[0024] In this solution, the fasteners on the template can be set to further strengthen the fastening effect of the template and improve its stability. The template fasteners are set on the outside of the precast hollow column to form a closed-loop force structure, which can evenly distribute the lateral pressure during concrete pouring and avoid the risk of template deformation or bursting.
[0025] Furthermore, multiple columns are provided on the outside of the prefabricated hollow column formed by the splicing of multiple templates. The multiple columns are arranged at intervals on the four sides of the prefabricated hollow column. The template fasteners are located on the outside of the multiple columns and can fasten the multiple columns.
[0026] In this solution, the fasteners for the columns and formwork work together to improve the support strength of the formwork and ensure the quality of the columns formed during the later pouring process.
[0027] Furthermore, the template fasteners are provided in multiple quantities, and the multiple template fasteners are distributed at vertical intervals along the template.
[0028] This configuration allows for vertical support and fixation of the template, further enhancing the uniform vertical support strength of the template. Attached Figure Description
[0029] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:
[0030] Figure 1 This is a three-dimensional view of a prefabricated hollow column formed by splicing multiple templates in an embodiment of a fair-faced concrete template joint reinforcement structure of this utility model;
[0031] Figure 2 This is a partial schematic diagram of the fixing unit, template fasteners, and the connection between the column and the template in one perspective of an embodiment of a reinforced joint structure for fair-faced concrete template according to this utility model.
[0032] Figure 3 This is a partial schematic diagram of the fixing unit, template fasteners, and the connection between the column and the template from another perspective of an embodiment of a reinforced joint structure for fair-faced concrete template according to this utility model;
[0033] Figure 4 This is a top view of an embodiment of a reinforced joint structure for fair-faced concrete formwork after the columns are installed on the outside of the formwork.
[0034] Figure 5 This is a top view of an embodiment of a reinforced joint structure for fair-faced concrete formwork after the installation of columns and formwork fasteners on the outside of the formwork;
[0035] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle.
[0036] The attached diagram shows the markings and corresponding component names:
[0037] Template 1, Template joint 2, Column 3, Template fastener 4, Fixing rod 5, Angle steel 6, Backing rib 7, Butterfly buckle 8. Detailed Implementation
[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.
[0039] like Figures 1-6As shown in the figure, as an embodiment of this application, a reinforced structure for the joint of a fair-faced formwork is provided, including multiple formworks 1, which are spliced together to form a precast hollow column for pouring concrete, and formwork joints 2 are formed between adjacent formworks 1.
[0040] In this embodiment, template 1 is a plastic-coated template 1. Each column is assembled from eight templates 1 to form a rectangular column structure, including four rounded corner templates 1 and four flat plates.
[0041] The joint reinforcement structure of the fair-faced formwork in this embodiment also includes a fixing unit for fixing two adjacent formworks 1. The fixing unit includes a fixing component, a connecting component and two back ribs 7 arranged side by side. The back ribs 7 can be steel bars in the prior art. The steel bars are fixed to the ground or a fixed structure.
[0042] The two sides of the connector are fixedly connected to the template 1 on both sides of the template joint 2; such as Figure 2 and Figure 3 As shown, the connector includes two angle steels 6, which are fixedly connected to the templates 1 on both sides of the template joint 2 by screws. In another embodiment, the two angle steels 6 are connected to each other and are close to each other. In this embodiment, a fixing hole is provided on one side of the two angle steels 6. The fixing hole is located on the side of the angle steel 6 that is not connected to the template 1. The two angle steels 6 are fixedly connected by fasteners inserted into the fixing holes. In this embodiment, the fasteners are bolts, and the two angle steels 6 are connected and fixed by bolts.
[0043] In one embodiment, each of the two angle steels 6 has a connecting hole that faces each other on one side. The connecting hole is located on the side of the angle steel 6 that is not connected to the template 1, that is, the connecting hole and the fixing hole are located on the same side.
[0044] One end of the fastener passes through one side of the two back ribs 7 and connects to the connector; the other end of the fastener is located on the other side of the two back ribs 7 and is fixed to the back ribs 7. Specifically: [The following text appears to be a separate, unrelated section:] Combined with... Figure 3 , Figure 5 and Figure 6 As shown, in one embodiment, the fixing member includes a fixing rod 5 and a limiting buckle. One end of the fixing rod 5 is provided with a hook, which can hook into the connecting hole. In this embodiment, the fixing rod 5 can be a hook bolt from the prior art.
[0045] The fixed rod 5 has an external thread on the side away from the hook. The limiting buckle is threaded to the fixed rod 5. The limiting buckle can abut against one side of the two rows of back ribs 7. The limiting buckle is a butterfly buckle 8. By turning the butterfly buckle 8, the butterfly buckle 8 moves along the fixed rod 5 and gradually abuts against the outside of the two back ribs 7, thereby achieving the limiting and fixing of the template 1. It can also reduce the misalignment size at the template joint 2 and ensure the quality of the joint during construction.
[0046] In one embodiment, such as Figure 2 As shown, the number of fasteners and connectors in the fixing unit is the same, and multiple sets of fasteners and connectors are provided in each fixing unit. These multiple sets of fasteners and connectors are distributed at intervals along the length of the template joint 2. The fasteners and connectors are used in pairs, and only one set of two back ribs 7 is needed in each fixing unit. These two back ribs 7 are arranged along the length of the template 1, so that the fixing rods 5 and butterfly buckles 8 in the multiple sets of fasteners can be connected and limited with the same set of back ribs 7. In this embodiment, the multiple sets of fasteners and connectors strengthen the reinforcement at the template joint 2 and improve the stability of the connection between adjacent templates 1.
[0047] In one embodiment, combined Figure 2 and Figure 5 As shown, a prefabricated hollow column formed by multiple templates 1 is provided with template fasteners 4 on its outer side. The multiple templates 1 are fastened together by the template fasteners 4. In this embodiment, the template fasteners 4 are square column buckles. Figure 2 As shown, there are multiple template fasteners 4, which are distributed at intervals along the vertical direction of the template 1, thereby improving the support strength of the template 1.
[0048] In another embodiment, combined with Figure 4 As shown, multiple columns 3 are set on the outside of the precast hollow column formed by multiple templates 1 splicing together. The multiple columns 3 are arranged at intervals on the four sides of the precast hollow column. The template fasteners 4 are located on the outside of the multiple columns 3 and can fasten the multiple columns 3. By setting the columns 3, the template fasteners 4 hold the columns 3 and the templates 1 tightly. The setting of the columns 3 further enhances the support strength of the templates 1, so that the column formed by later pouring has better forming quality.
[0049] The specific implementation process is as follows:
[0050] like Figure 2 As shown, after the template fastener 4 and the column 3 are installed on the outside of the template 1, the fixing unit of this application is then installed at each template joint 2.
[0051] like Figure 6 As shown, two angle steels 6 are fixed to the templates 1 on both sides of each template joint 2 by screws. The two angle steels 6 are set close to each other, and then bolts are inserted into the fixing holes on the two angle steels 6 to tighten them and connect and fix the two angle steels 6.
[0052] Two back ribs 7 are pre-installed on one side of the template 1. The hook on one end of the fixing rod 5 is inserted into the connection hole of the two angle steels 6, and the other end of the fixing rod 5 is passed through the two back ribs 7. Then, the butterfly buckle 8 is screwed on the fixing rod 5, so that the butterfly buckle 8 gradually abuts against the outside of the two back ribs 7, thereby achieving the limiting connection. The installation of the fixing unit is thus completed.
[0053] It should be noted that the above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A reinforced structure for joints in fair-faced concrete formwork, comprising multiple formwork panels, which are spliced together to form a precast hollow column for pouring concrete, wherein joints are formed between adjacent formwork panels, characterized in that... The fixing unit comprises a fixing piece, a connecting piece and two back braces arranged side by side, two sides of the connecting piece are fixedly connected with the templates on both sides of the template joint, respectively; One end of the fixing piece penetrates one side of the two back braces and is connected with the connecting piece, and the other end of the fixing piece is located on the other side of the two back braces and is fixed on the back braces.
2. The clear formwork joint reinforcing structure according to claim 1, wherein, The fixing piece and the connecting piece in the fixing unit are provided in multiple groups, and the number of the fixing piece and the connecting piece in the fixing unit is the same, and the multiple groups of the fixing piece and the multiple groups of the connecting piece are distributed along the length direction of the template joint.
3. The clear formwork joint reinforcing structure according to claim 1, wherein The connecting piece comprises two angle steels, and the two angle steels are fixedly connected with the templates on both sides of the template joint, respectively.
4. The clear formwork joint reinforcing structure according to claim 3, wherein One side of the two angle steels is provided with a connecting hole arranged opposite to each other, the fixing piece comprises a fixing rod and a limiting buckle, one end of the fixing rod is provided with a hook, and the hook can be hooked in the connecting hole; The side of the fixing rod away from the hook is provided with an external thread, the limiting buckle is threadedly connected with the fixing rod, and the limiting buckle can abut against one side of the two rows of back braces.
5. The clear formwork joint reinforcing structure according to claim 4, wherein The limiting buckle is a butterfly buckle.
6. The clear formwork joint reinforcing structure according to claim 4, wherein The two angle steels are connected with each other, and the two angle steels are close to each other.
7. The clear template joint reinforcing structure according to claim 6, wherein, One side of the two angle steels is also provided with a fixing hole, and the two angle steels are fixedly connected by penetrating a fastener into the fixing hole.
8. The clear formwork joint reinforcing structure according to claim 1, wherein The outer side of the prefabricated hollow column formed by the multiple templates spliced with each other is provided with a template fastener, and the multiple templates are fastened by the template fastener.
9. The clear formwork joint reinforcing structure of claim 8, wherein, A plurality of columns are arranged on the outer side of the prefabricated hollow column formed by the multiple templates spliced with each other, the multiple columns are arranged on the four sides of the prefabricated hollow column in sequence and at intervals, and the template fastener is located on the outer side of the multiple columns and can fasten the multiple columns.
10. The clear template joint reinforcing structure according to claim 8 or 9, wherein, The template fastener is provided in multiple groups, and the multiple template fasteners are distributed at intervals along the vertical direction of the template.