Form-removal-free steel bar truss floor support plate
By using connectors with open grooves in the mold-free rebar truss bearing plate for clamping and connection, the high cost problem of welding processes and equipment in the prior art is solved, and efficient and low-cost production efficiency and steel truss are achieved. Connection stability.
Patent Information
- Application Number
- CN202421098698.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-20
AI Technical Summary
The production cost of existing moldless steel bar truss bearing plates is relatively high, requiring professional welders and expensive welding equipment, and realizing automated welding requires huge investment, which is unrealistic for small and micro enterprises.
Using a connecting piece with an open groove, the lower chord of the steel bar is connected to the connecting piece by clamping, avoiding welding processes and equipment, using metal or non-metallic U-shaped parts as the connecting piece, and providing multiple open grooves to suit different specifications steel bar truss.
It eliminates welding processes and equipment, improves production efficiency, and reduces production costs. The steel bar truss is fast connected to the bottom mold and is reliable in the jamming.
Smart Images
Figure CN222314352U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a steel truss in the field of construction, in particular to a steel truss floor decking plate free of formwork removal, belonging to the technical field of construction. Background Art
[0002] The steel truss floor decking without dismantling formwork is generally made of a bottom formwork and a steel truss connected thereto. In construction, it can be produced in a factory as a similar prefabricated building and then used in on-site construction. Since it omits the processes of tying steel bars and dismantling formwork, it has high efficiency and a short cycle. The initial bottom formwork used metal plates, and the current bottom formwork generally uses non-metallic fiber cement (pressure) plates. The structure of the existing steel truss floor decking without dismantling formwork is as disclosed in Chinese patent application No. 202221077536X (a packaging structure of a steel truss floor decking without dismantling formwork). The steel truss includes an upper chord and two lower chords. The upper chord is connected to the two lower chords by a web bar. Metal parts are fixedly connected to the bottom formwork. The two lower The chord is welded to the metal part. The floor decking disclosed in Chinese patent application No. 2022220966289 basically adopts the above-mentioned technical solution, except that the bottom template is replaced with a steel mesh. In the existing production, the steel truss part has a special production unit. The production unit produces the steel truss and then welds it to the bottom template. This method requires professional welders and welding equipment. Currently, there is a shortage of welding workers, and the cost of using welding workers is getting higher and higher, resulting in a high production cost of the steel truss floor decking that does not require demolding. If automated welding is to be achieved, huge investment is required, which is not realistic for many small and micro enterprises. Therefore, how to reduce the production cost of the steel truss floor decking that does not require demolding is a problem that needs to be solved. Summary of the invention
[0003] The utility model aims to overcome the above-mentioned problems existing in the current production of formwork-free steel truss floor decking and provide a formwork-free steel truss floor decking.
[0004] To achieve the purpose of the utility model, the following technical scheme is adopted: a steel bar truss floor decking plate that does not require demolding, including a bottom template and a steel bar truss, the steel bar truss includes an upper chord and two lower chords, the upper chord and the two lower chords are connected by a web bar, a connecting piece is fixedly connected to the bottom template, the steel bar truss is connected to the connecting piece, the connecting piece has an open groove, the two lower chords on the steel bar are respectively clamped in the open grooves, the two lower chords are located in two different open grooves of the same connecting piece or in the open grooves of two separate connecting pieces, and a plurality of the connecting pieces are arranged along the length direction of the lower chord.
[0005] Furthermore, the connecting member is a U-shaped member, and an open groove with side openings is provided on the inner sides of the two U-shaped edges.
[0006] Furthermore; the connecting piece is a large U-shaped groove with an upper opening, an open groove is opened on the inner side of one U-shaped side of the U-shaped groove, and a small U-shaped groove is opened on the upper end face of the other U-shaped side, and the inward inner turns of the two U-shaped sides of the small U-shaped groove respectively form a clamping groove opening downward or obliquely downward, and there is a first gap between the inner turns of the two clamping grooves, and there is a second gap between the two inner turns and the bottom of the small U-shaped groove, and the first gap and the second gap can both accommodate steel bars to pass through.
[0007] Furthermore, the connecting piece is a metal piece or a non-metal piece.
[0008] The positive and beneficial technical effect of the utility model is that the steel trusses on the steel truss floor decking plate that does not require demolding are clamped on the connecting parts, eliminating the welding process, saving welding equipment and a large number of welding technicians, and the connection between the steel trusses and the bottom mold is fast, the production efficiency is high, and the steel bars are reliably clamped. It is explained in detail in conjunction with the specific implementation method. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a front view schematic diagram of the first embodiment of the connecting piece of the utility model.
[0010] Figure 2 It is a side view schematic diagram of the first embodiment of the connecting piece of the utility model.
[0011] Figure 3 Schematic diagram of the first embodiment of the connector and the matching steel bar truss.
[0012] Figure 4 It is a front view schematic diagram of the second embodiment. DETAILED DESCRIPTION
[0013] In order to more fully explain the implementation of the utility model, implementation examples of the utility model are provided. These implementation examples are only for the purpose of illustrating the utility model and do not limit the scope of the utility model.
[0014] The present invention is further explained in detail in conjunction with the accompanying drawings, in which the marks are: 1: connector A; 2: open slot AA; 3: open slot AB; 4: upper chord; 5: lower chord; 6: web; 7: connector B; 8: open slot B; 9: large U-shaped slot; 10: small U-shaped slot; 11: inner flange; 12: first gap; 13: second gap; 14: bottom template.
[0015] The utility model mainly innovates and improves the connection between the current steel truss and the bottom formwork. The steel truss part adopts the existing solution. The steel truss in this embodiment is only a schematic diagram and does not represent the actual shape of all steel trusses. The bottom formwork can be made of metal plates or existing fiber cement pressure plates. Connection holes can be reserved on the bottom formwork and the connection piece, and the bottom formwork and the connection piece are fixedly connected by bolts (nuts).
[0016] As shown in the accompanying drawings, a steel bar truss floor decking plate that does not require demolding includes a bottom template 1 and a steel bar truss. The steel bar truss includes an upper chord 4 and two lower chords 5. The upper chord and the two lower chords are connected by a web 6. A connecting piece is fixedly connected to the bottom template. The steel bar truss is connected to the connecting piece. The connecting piece has an open groove. The two lower chords on the steel bar are respectively clamped in the open grooves. The two lower chords 5 are located in two different open grooves of the same connecting piece or in the open grooves of two separate connecting pieces. A plurality of connecting pieces are arranged along the length direction of the lower chord. The distance between the open grooves is adapted to the distance between the two lower chords. Because there is no need to weld to the steel bar truss, the connecting piece can be a metal piece or a non-metal piece.
[0017] As a specific connecting member A, the connecting member A is a U-shaped member, and an opening groove AA and an opening groove AB with side openings are opened on the inner sides of the two U-shaped sides. Figure 3 It is a schematic diagram of a steel truss connected to a connector A, which only shows a bottom template containing a steel truss. A plurality of connectors A are fixedly installed in the length direction of a corresponding steel truss on the bottom template. The connector A avoids the position where the web member is located. When installing, the lower chord of the elastic part of the steel bar on the truss is installed in the open groove AA and the open groove AB. The connector A is an integral connector. Obviously, the same effect can be achieved by cutting the connector A in the middle to form two independent parts.
[0018] As another specific connector B, the connector B7 is a large U-shaped groove with an upper opening. An open groove B is provided on the inner side of one U-shaped side of the large U-shaped groove 9, and a small U-shaped groove 10 is provided on the upper end face of the other U-shaped side. The two U-shaped sides of the small U-shaped groove are turned inward to form a clamping groove that opens downward or obliquely downward. The two clamping grooves in the figure are clamping groove A15 and clamping groove B16 respectively; 11 is a flange, and there is a first gap 12 between the inner flanges of the two clamping grooves, and there is a second gap 13 between the two inner flanges and the bottom of the small U-shaped groove. The first gap and the second gap can accommodate the passage of steel bars. When connector B is used, one of the two lower chords is located in the open groove B and the other is located in the clamping groove A or the clamping groove B, so connector B can adapt to different truss specifications.
[0019] After describing the implementation mode of the utility model in detail, people familiar with the technology can clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above-mentioned patent application. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model are within the scope of the technical solution of the utility model, and the utility model is not limited to the implementation mode of the examples given in the specification.
Claims
1. A steel truss floor decking plate without formwork removal, comprising a bottom formwork and a steel truss, wherein the steel truss comprises an upper chord and two lower chords, wherein the upper chord and the two lower chords are connected by a web member, a connecting piece is fixedly connected to the bottom formwork, and the steel truss is connected to the connecting piece, wherein the connecting piece is characterized in that: The connecting piece is provided with an open groove, and the two lower chords on the steel bar are respectively clamped in the open grooves. The two lower chords are located in two different open grooves of the same connecting piece or in the open grooves of two separate connecting pieces. Multiple connecting pieces are arranged along the length direction of the lower chords.
2. The formwork-free steel truss floor deck according to claim 1, characterized in that: The connecting piece is a U-shaped piece, and an opening groove with side openings is provided on the inner sides of the two U-shaped edges.
3. The formwork-free steel truss floor deck according to claim 1, characterized in that: The connecting piece is a large U-shaped groove piece with an upper opening, an open groove is opened on the inner side of one U-shaped side of the large U-shaped groove, and a small U-shaped groove is opened on the upper end face of the other U-shaped side. The inwardly turned inner edges of the two U-shaped sides of the small U-shaped groove respectively form a clamping groove opening downward or obliquely downward, a first gap is provided between the inward turned edges of the two clamping grooves, and a second gap is provided between the two inward turned edges and the bottom of the small U-shaped groove, and both the first gap and the second gap can accommodate the passage of steel bars.
4. The formwork-free steel truss floor deck according to claim 1, characterized in that: The connecting piece is a metal piece or a non-metal piece.