Combined steel formwork structure of exposed aggregate concrete fireproof wall
By adopting a combined steel formwork structure with top and bottom reinforcement support units in the substation firewall, the problems of high construction quality and cost of traditional wooden and steel formwork were solved, and efficient and low-cost fair-faced concrete molding was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGJIA CONSTR GRP CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-14
AI Technical Summary
In the construction of existing substation concrete firewalls, the traditional wooden formwork has poor support quality and is difficult to meet the standards of fair-faced concrete. In addition, the construction of combined steel formwork is difficult and costly.
A combined steel formwork structure, including top and bottom reinforcement support units, is adopted. Longitudinal reinforcement channel steel and tie bolts are used for connection, combined with PVC sleeves and reinforcement adjustment clips to form an overall reinforcement system, reducing material input and construction difficulty.
It improved the rigidity and appearance quality of the firewall, reduced the construction period and material costs, enabled overall demolition and mechanized construction, reduced the risk of grout leakage, and improved the molding effect.
Smart Images
Figure CN224495771U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a combined steel formwork structure, specifically a combined steel formwork structure suitable for fair-faced concrete firewalls in substations. Background Technology
[0002] The existing substation concrete firewalls must meet the quality standards for fair-faced concrete. Therefore, the appearance and forming quality of the concrete on the outer surface of the concrete firewall structure are subject to high requirements.
[0003] Traditionally, wooden formwork is used for support, which not only results in poor construction quality and easy bulging of the formwork, but also has too many bolt holes on the surface. At the same time, it does not meet the quality standards for fair-faced concrete construction.
[0004] To address the drawbacks of traditional wooden formwork, existing technologies employ combined steel formwork structures. However, during construction, combined steel formwork typically uses the first layer of steel formwork as the bottom support, with the second layer supported on top of the first. This necessitates the use of more steel formwork, which can only be removed after the second layer is completed, resulting in higher material costs. Furthermore, existing steel formwork technologies use double-slotted channel steel for reinforcement, which not only increases construction difficulty but also leads to higher costs. Utility Model Content
[0005] The purpose of this invention is to provide a combined steel formwork structure for fair-faced concrete firewalls that not only improves overall rigidity and strength but also reduces material input costs.
[0006] To achieve the above objectives, the technical solution of this utility model is: a combined steel formwork structure for a fair-faced concrete firewall, comprising two sets of horizontal steel formwork arranged opposite each other, and end plates located at the ends of the two sets of horizontal steel formwork, which enclose the space for pouring fair-faced concrete and solidifying it into a firewall. Its innovation lies in: it also includes a top reinforcement support unit and a bottom reinforcement support unit, and the outer walls of the two sets of horizontal steel formwork are provided with multiple longitudinal reinforcement channel steels arranged in a one-to-one correspondence.
[0007] The top reinforcement support unit includes a top reinforcement bracket, an upper crossbeam, and upper tie bolts. Each set of transverse steel formwork is equipped with a top reinforcement bracket at its top, and the top reinforcement bracket is integrated with the corresponding upper crossbeam. Every two opposing longitudinal reinforcement channel steels on the two sets of transverse steel formwork are connected to the top reinforcement bracket and the upper crossbeam by an upper tie bolt.
[0008] The bottom reinforcement support unit includes a bottom reinforcement bracket, a lower crossbeam, and lower tie bolts. Each set of transverse steel formwork has a bottom reinforcement bracket at its bottom, and the bottom reinforcement bracket is integrated with the corresponding lower crossbeam. Each pair of oppositely arranged longitudinal reinforcement channel steels on the two sets of transverse steel formwork are also connected to the bottom reinforcement bracket and lower crossbeam via a lower tie bolt.
[0009] The upper tie bolt section located between the two upper crossbeams and the lower tie bolt section located between the two lower crossbeams are both fitted with PVC sleeves.
[0010] In the above technical solution, the horizontal steel formwork is composed of multiple sub-formworks spliced together. Each sub-formwork has multiple square tubes arranged parallel to its height and width on its outer side to enhance its rigidity.
[0011] In the above technical solution, the square tube is detachably connected to the sub-template by connecting bolts, and the nut on the connecting bolt is embedded in the groove reserved in the sub-template, so that the nut is flush with the inner side of the sub-template.
[0012] In the above technical solution, the horizontal steel template is provided with lifting rings to facilitate overall hoisting.
[0013] In the above technical solution, each sub-template is provided with a connecting plate at both ends, and the connecting plates of adjacent sub-templates can be detachably connected by a reinforcing adjustment clip.
[0014] In the above technical solution, the reinforcing adjustment clip includes a U-shaped connecting buckle and an adjusting bolt provided on the connecting buckle. The connecting buckle passes through the connecting holes of two adjacent connecting plates, and the inner end of the adjusting bolt abuts against one of the connecting plates.
[0015] In the above technical solution, the free end of the connecting buckle extends into a locking hook with a bent structure, and the locking hook is attached to another connecting plate to form a locking connection.
[0016] In the above technical solution, the end plate includes a steel plate and a reinforcing end beam provided on the outer side of the steel plate, and the angle irons at both ends of the steel plate are detachably connected to the transverse steel template.
[0017] The positive effects of this utility model are as follows: After adopting the combined steel formwork structure of the fair-faced concrete firewall of this utility model, it also includes a top reinforcement support unit and a bottom reinforcement support unit. The outer walls of the two sets of transverse steel formwork are provided with multiple longitudinal reinforcement channel steels arranged in a one-to-one correspondence.
[0018] The top reinforcement support unit includes a top reinforcement bracket, an upper crossbeam, and upper tie bolts. Each set of transverse steel formwork is equipped with a top reinforcement bracket at its top, and the top reinforcement bracket is integrated with the corresponding upper crossbeam. Every two opposing longitudinal reinforcement channel steels on the two sets of transverse steel formwork are connected to the top reinforcement bracket and the upper crossbeam by an upper tie bolt.
[0019] The bottom reinforcement support unit includes a bottom reinforcement bracket, a lower crossbeam, and lower tie bolts. Each set of transverse steel formwork has a bottom reinforcement bracket at its bottom, and the bottom reinforcement bracket is integrated with the corresponding lower crossbeam. Each pair of oppositely arranged longitudinal reinforcement channel steels on the two sets of transverse steel formwork are also connected to the bottom reinforcement bracket and lower crossbeam via a lower tie bolt.
[0020] PVC sleeves are fitted onto the upper tie bolt section located between the two upper crossbeams and the lower tie bolt section located between the two lower crossbeams.
[0021] This invention enhances the rigidity and strength of the transverse steel formwork by adding reinforcing units at the top and bottom, making it less prone to deformation. Furthermore, the top and bottom reinforcing supports effectively reinforce and support the transverse steel formwork.
[0022] In addition, the overall structure of this utility model also has the following advantages:
[0023] First, the combined steel formwork structure is not only large in size, but also has good rigidity and strength, and produces an aesthetically pleasing finished product.
[0024] Secondly, the entire assembly and dismantling process is mechanized, allowing for gradual changes in operation and shortening the construction period.
[0025] Third, the number of bolt holes for reinforcing the fair-faced concrete firewalls in substations has been greatly reduced, further enhancing the appearance quality.
[0026] Fourth, this utility model uses a single channel steel for vertical reinforcement of the horizontal steel formwork. Bolt holes are pre-drilled on the channel steel, and tie bolts are used to form a reinforcement system with the reinforcement unit. This greatly reduces construction difficulty, facilitates installation, and saves on material costs.
[0027] Fifth, this utility model adds reinforcing support units to the top and bottom of the horizontal steel formwork to form an overall reinforcement. After the concrete is poured, the steel formwork can be removed and the construction can be moved to the next layer without the need for two layers of steel formwork. In other words, this utility model uses a reinforcing bracket that reinforces and supports the horizontal steel formwork at the top and bottom, so only one layer of horizontal steel formwork is needed for repeated construction, reducing the initial investment cost of steel formwork and resulting in significant benefits. Attached Figure Description
[0028] Figure 1This is a three-dimensional structural diagram of a specific embodiment of the present utility model;
[0029] Figure 2 yes Figure 1 A side view diagram (in use).
[0030] Figure 3 This is a schematic diagram of the structure of the sub-template of this utility model;
[0031] Figure 4 This is a schematic diagram of the connection structure between adjacent sub-templates of this utility model;
[0032] Figure 5 This is a schematic diagram of the structure of the reinforced adjustment card of this utility model;
[0033] Figure 6 yes Figure 5 A side view diagram;
[0034] Figure 7 This is a structural schematic diagram of the end cap plate of this utility model. Detailed Implementation
[0035] The present invention will be further described below with reference to the accompanying drawings and the given embodiments, but it is not limited thereto.
[0036] like Figure 1 , 2 As shown in Figures 3, 4, 5, 6, and 7, a combined steel formwork structure for a fair-faced concrete firewall includes two sets of horizontal steel formwork 1 arranged opposite each other, and end plates 2 located at the ends of the two sets of horizontal steel formwork 1, which enclose the space for pouring fair-faced concrete and solidifying it into a firewall. It also includes a top reinforcement support unit and a bottom reinforcement support unit. Multiple longitudinal reinforcement channel steels 10 are arranged in a one-to-one correspondence on the outer walls of the two sets of horizontal steel formwork 1.
[0037] The top reinforcement support unit includes a top reinforcement bracket 3, an upper crossbeam 4, and upper tie bolts 5. Each set of transverse steel formwork 1 is provided with a top reinforcement bracket 3 at its top, and the top reinforcement bracket 3 is connected to the corresponding upper crossbeam 4 as a whole. Every two oppositely arranged longitudinal reinforcement channel steels 10 on the two sets of transverse steel formwork 1 are connected to the top reinforcement bracket 3 and the upper crossbeam 4 as a whole by an upper tie bolt 5.
[0038] The bottom reinforcement support unit includes a bottom reinforcement bracket 6, a lower crossbeam 7, and a lower tie bolt 8. Each set of transverse steel formwork 1 has a bottom reinforcement bracket 6 at its bottom, and the bottom reinforcement bracket 6 is connected to the corresponding lower crossbeam 7 as a whole. Each pair of oppositely arranged longitudinal reinforcement channel steels 10 on the two sets of transverse steel formwork 1 are also connected to the bottom reinforcement bracket 6 and the lower crossbeam 7 as a whole by a lower tie bolt 8.
[0039] The upper tie bolt 5, located between the two upper crossbeams 4, and the lower tie bolt 8, located between the two lower crossbeams 7, are both fitted with PVC sleeves 9.
[0040] Furthermore, such as Figure 3 As shown, in order to improve the rigidity of the sub-formwork itself, the transverse steel formwork 1 is composed of multiple sub-formworks 11 spliced together. Each sub-formwork 11 has multiple square tubes 12 arranged parallel to its height and width on its outer side to strengthen its rigidity.
[0041] Furthermore, in order to ensure the overall flatness of the inner side of the sub-formwork and to guarantee the good and beautiful appearance quality of the subsequent fair-faced concrete molding, the square tube 12 is detachably connected to the sub-formwork 11 by connecting bolts, and the nuts on the connecting bolts are embedded in the grooves reserved in the sub-formwork 11, so that the nuts are flush with the inner side of the sub-formwork 11.
[0042] Furthermore, such as Figure 3 As shown, in order to facilitate overall hoisting, the horizontal steel template 1 is provided with lifting rings 13 for easy overall hoisting.
[0043] Furthermore, such as Figure 4 As shown, in order to enable adjacent sub-templates to be quickly spliced, each sub-template 11 is provided with a connecting plate 111 at both ends. The connecting plates 111 of adjacent sub-templates 11 are detachably connected by a reinforcing adjustment clip 100.
[0044] Furthermore, such as Figure 4 , 5 As shown in Figure 6, to improve splicing efficiency while ensuring the strength of the splice joint, resulting in high reinforcement quality and quick installation and disassembly, the reinforcement adjustment clip 100 includes a U-shaped connecting clip 101 and an adjusting bolt 102 disposed on the connecting clip 101. The connecting clip 101 passes through the connecting holes on two adjacent connecting plates 111, and the inner end of the adjusting bolt 102 abuts against one of the connecting plates 111. During assembly, the reinforcement adjustment clip needs to be rotated to a vertical angle to pass through the connecting holes on the connecting plates.
[0045] Furthermore, such as Figure 5 , 6 As shown, in order to further improve the structural rationality, the free end of the connecting buckle 101 extends into a locking hook 103 with a bent structure, and the locking hook 103 is fitted with another connecting plate 111 to form a locking connection.
[0046] Furthermore, such as Figure 7 As shown, in order to further improve the overall rigidity of the end plate, the end plate 2 includes a steel plate 21 and a reinforcing end beam 22 provided on the outer side of the steel plate 21. The angle irons at both ends of the steel plate 21 are detachably connected to the transverse steel template 1.
[0047] The overall structure of this utility model has the following advantages:
[0048] First, the combined steel formwork structure is not only large in size, but also has good rigidity and strength, and produces an aesthetically pleasing finished product.
[0049] Secondly, the entire assembly and dismantling process is mechanized, allowing for gradual changes in operation and shortening the construction period.
[0050] Third, the number of bolt holes for reinforcing the fair-faced concrete firewalls in substations has been greatly reduced, further enhancing the appearance quality.
[0051] Fourth, this utility model uses a single channel steel for vertical reinforcement of the horizontal steel formwork. Bolt holes are pre-drilled on the channel steel, and tie bolts are used to form a reinforcement system with the reinforcement unit. This greatly reduces construction difficulty, facilitates installation, and saves on material costs.
[0052] Fifth, by adding reinforcing support units to the top and bottom of the horizontal steel formwork, this utility model forms an integral reinforcement. After the concrete pouring is completed, the steel formwork can be removed and the work can proceed to the next floor, eliminating the need for two layers of steel formwork. In other words, this utility model utilizes a reinforcing bracket that strengthens and supports the horizontal steel formwork at the top and bottom, requiring only one layer of horizontal steel formwork for repeated construction, thus reducing the initial investment cost of steel formwork and demonstrating significant benefits.
[0053] Sixth, the horizontal steel formwork of this utility model uses square tubing in both the horizontal and vertical directions, and the square tubing is bolted to the steel plate. This not only makes assembly and disassembly convenient, but also allows for material reuse, saving energy and protecting the environment.
[0054] Seventh, the reinforcement and adjustment clips used in this utility model for adjacent sub-formwork not only provide high-quality reinforcement but also allow for quick installation and dismantling. Furthermore, it offers advantages such as tight joint connections, significantly reducing grout leakage, and resulting in good concrete forming.
[0055] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A combined steel formwork structure for a fair-faced concrete firewall, comprising two sets of transverse steel formwork (1) arranged opposite to each other, and end plates (2) provided at the ends of the two sets of transverse steel formwork (1), so as to enclose and form a space for pouring fair-faced concrete and solidifying it into a firewall, characterized in that: It also includes a top reinforcement support unit and a bottom reinforcement support unit. The outer walls of the two sets of transverse steel formwork (1) are provided with multiple longitudinal reinforcement channel steels (10) arranged in a one-to-one correspondence. The top reinforcement support unit includes a top reinforcement bracket (3), an upper crossbeam (4), and upper tie bolts (5). Each set of transverse steel formwork (1) is provided with a top reinforcement bracket (3) at the top, and the top reinforcement bracket (3) is connected to the corresponding upper crossbeam (4) as a whole. Each pair of oppositely arranged longitudinal reinforcement channel steels (10) on the two sets of transverse steel formwork (1) are connected to the top reinforcement bracket (3) and the upper crossbeam (4) as a whole by an upper tie bolt (5). The bottom reinforcement support unit includes a bottom reinforcement bracket (6), a lower crossbeam (7), and a lower tie bolt (8). Each set of transverse steel formwork (1) has a bottom reinforcement bracket (6) at its bottom, and the bottom reinforcement bracket (6) is connected to the corresponding lower crossbeam (7) as a whole. Each pair of oppositely arranged longitudinal reinforcement channel steels (10) on the two sets of transverse steel formwork (1) are also connected to the bottom reinforcement bracket (6) and the lower crossbeam (7) as a whole by a lower tie bolt (8). PVC sleeves (9) are fitted on the upper tie bolt (5) and the section between the two upper crossbeams (4) and the lower tie bolt (8) and the section between the two lower crossbeams (7).
2. The combined steel formwork structure for a fair-faced concrete firewall according to claim 1, characterized in that: The horizontal steel formwork (1) is composed of multiple sub-formworks (11) spliced together. Each sub-formwork (11) has multiple square tubes (12) arranged parallel to its height and width on its outer side to enhance its rigidity.
3. The combined steel formwork structure for a fair-faced concrete firewall according to claim 2, characterized in that: The square tube (12) is detachably connected to the sub-template (11) by connecting bolts, and the nut on the connecting bolt is embedded in the groove reserved in the sub-template (11), so that the nut is flush with the inner side of the sub-template (11).
4. The combined steel formwork structure for a fair-faced concrete firewall according to claim 2, characterized in that: The horizontal steel formwork (1) is equipped with lifting rings (13) for easy overall hoisting.
5. The combined steel formwork structure for a fair-faced concrete firewall according to claim 2, characterized in that: Each sub-template (11) has a connecting plate (111) at both ends, and the connecting plates (111) of adjacent sub-templates (11) can be detachably connected by a reinforcing adjustment clip (100).
6. The combined steel formwork structure for a fair-faced concrete firewall according to claim 5, characterized in that: The reinforcing adjustment clip (100) includes a U-shaped connecting buckle (101) and an adjusting bolt (102) provided on the connecting buckle (101). The connecting buckle (101) passes through the connecting holes on two adjacent connecting plates (111), and the inner end of the adjusting bolt (102) abuts against one of the connecting plates (111).
7. The combined steel formwork structure for a fair-faced concrete firewall according to claim 6, characterized in that: The free end of the connecting buckle (101) extends into a locking hook (103) with a bent structure, and the locking hook (103) is fitted with another connecting plate (111) to form a locking connection.
8. The combined steel formwork structure for a fair-faced concrete firewall according to claim 1, characterized in that: The end plate (2) includes a steel plate (21) and a reinforcing end beam (22) provided on the outer side of the steel plate (21). The angle irons at both ends of the steel plate (21) are detachably connected to the transverse steel template (1).