Aluminum die and truss plate fixing C-shaped groove device

Abstract

A C-shaped groove device for fixing an aluminum mold and a truss plate comprises a C-shaped groove body and a truss floor support plate, and is characterized in that the C-shaped groove body is made of high-strength aluminum alloy or galvanized steel, and the truss floor support plate (3) comprises a steel bar truss (2) on the upper layer and a bottom mold plate (4) on the lower layer; an aluminum mold (12) is arranged below a bottom mold plate (4) at the end of the truss floor support plate, a groove opening is formed in the edge of the end of the aluminum mold, the C-shaped groove is formed in the end of the truss floor support plate during use, one end of the truss floor support plate is inserted into the C-shaped groove, a plurality of C-shaped groove locking battens are welded to one side of the C-shaped groove, the distance between every two adjacent C-shaped groove locking battens is 1.5 m, and horizontal displacement of the truss floor support plate is limited. The C-shaped groove device for fixing the aluminum formwork and the truss plate has the advantages that the C-shaped groove fixing device is convenient and fast to mount and dismount, construction is facilitated, the quality problems of sliding and warping of the truss floor support plate on the aluminum formwork are solved, the problems of slab staggering and slurry leakage of a top plate are solved, and the construction effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a C-shaped groove device for fixing an aluminum formwork and a truss plate. Background Art

[0002] Currently, the combination of removable truss decks and aluminum formwork is gaining increasing application in construction due to its functionality, environmental friendliness, and high efficiency. However, because the removable truss decks and the aluminum formwork are produced by two different suppliers, the truss decks are laid flat on the aluminum formwork without any securing measures. This can lead to the decks shifting during concrete pouring or construction, resulting in problems such as misalignment and grout leakage in the top slab after formwork removal.

[0003] For example, Chinese patent CN208280412U, titled "A Removable Truss Floor Decking Base Plate," discloses a method of providing ribs and equally spaced truss fixing seats on the base plate, with the fixing seats connected to the ribs by bolts to achieve detachable fixing of the floor deck to the base plate. However, this solution only addresses the internal structure of the base plate, lacks a fixing device combined with the aluminum alloy formwork, and cannot prevent horizontal slippage and warping of the floor deck on the aluminum formwork; the combination of the bolt fixing seat and the ribs occupies a very small area of ​​the base plate, but the installation position is fixed, lacking a quick "plug and play" function, and limiting on-site disassembly and assembly efficiency; and without any anti-vibration or anti-lateral displacement structure, there is still a risk of misalignment and leakage during concrete vibration and load-bearing.

[0004] Another example is Chinese patent CN114319886 A, entitled "A truss frame device and its connection structure," which discloses a C-shaped groove on the base, which clamps the truss legs with connecting plates, spring-loaded telescopic legs, and studs, and adjusts the height with sliding nuts. However, its structure is complex, including C-shaped grooves, connecting plates, telescopic legs, studs, nuts, etc., making installation and removal cumbersome and highly dependent on the construction workers' operational skills. Although this solution has a height-adjustable function, it still requires repeated on-site tightening of nuts for calibration, which is time-consuming and has unstable positioning accuracy. It also does not belong to the design solution that can be combined with aluminum alloy formwork, and cannot be "disassembled and installed" with the formwork, which lacks material turnover efficiency.

[0005] Another example is Chinese patent CN113216486B, entitled "Reinforced Truss Floor Decking Plate and Aluminum Alloy Cross-Node Structure and Construction Method." It discloses a method for connecting truss plates to aluminum formwork by combining "K-plates" (combined angle steel plates) with aluminum formwork back rib pins. However, this method relies on welding or pinning the K-plates to the aluminum formwork, requiring both additional welding steps and manual pinning afterward, impacting construction schedules. Furthermore, both the K-plates and back ribs are rigid steel components, lacking the elastic buffering provided by fasteners, making them susceptible to loosening due to concrete vibration. Furthermore, the node design is designed for super-high-rise structures, making its versatility and cost-effectiveness unsuitable for general residential or mid- to low-rise projects.

[0006] Another example is Chinese patent CN204781590U, entitled "Thin-walled inward-flange C-shaped steel truss connector and combined truss," which discloses a method for rapidly splicing truss components by interlocking and pressing inward-flange C-shaped steel and truss connectors, reinforced with tie-steel strips. However, the method focuses on the assembly stability of the truss components themselves, lacks any mating interface on the aluminum formwork side, and lacks the positioning function between the floor deck and the formwork. Furthermore, the method requires the use of tie-steel strips and stamped positioning grooves, resulting in high manufacturing costs and a high workload for on-site construction preparation. Furthermore, the method has poor environmental adaptability, and the service life of the tie-steel strips in humid or high-temperature conditions is unknown, making it unable to meet the needs of large-scale turnover.

[0007] To sum up, the existing methods of fixing truss floor decks and aluminum formworks have the above-mentioned inconveniences and problems. Although they each provide different ideas for fixing truss floor decks or truss components, none of them can achieve a simple, fast and compatible technical solution between the "overall disassembly and assembly cycle of aluminum alloy formwork" and the "high-precision and repeatable positioning of floor decks". There is an urgent need for a C-groove fixing device that can be disassembled and assembled together with the aluminum formwork and can prevent displacement in both horizontal and vertical directions to completely solve the above problems. Summary of the Invention

[0008] The purpose of the present invention is to provide a safe and reliable C-shaped groove device for fixing aluminum formwork and truss plates.

[0009] To achieve the above objectives, the technical solution of the present invention is: A C-shaped groove device for fixing an aluminum formwork and a truss plate, comprising a C-shaped groove body and a truss floor deck, characterized in that: The C-shaped groove body is made of high-strength aluminum alloy or galvanized steel. The shape of the C-shaped groove is like a channel steel. The notch height of the C-shaped groove is set according to the thickness of the truss floor deck. The lower flange plate of the C-shaped groove is provided with a bolt hole or a clip mounting hole, and a clip is provided in the clip hole. The truss floor decking comprises an upper layer of steel trusses and a lower layer of bottom formwork. An aluminum formwork is provided below the bottom formwork at the end of the truss floor decking. A groove is provided at the edge of the end of the aluminum formwork so that the upper flange plate of the C-shaped groove can be inserted into the groove. The upper flange plate is bonded and fixed in the groove of the aluminum formwork using structural adhesive and temporarily fixed with positioning pins. The length of the upper flange plate and the aluminum formwork strip is ≥200mm. The ends of the upper flange plate and the aluminum formwork strip are provided with C-shaped locking wooden squares, which are nailed to the bottom formwork with iron nails. A number of connectors are provided between the steel truss and the bottom formwork. A plastic spacer is provided between the steel truss and the bottom formwork. Among them: when in use, the C-shaped groove is set at the end of the truss floor decking, so that one end of the truss floor decking is inserted into the C-shaped groove, and several C-shaped groove locking wooden squares are welded on one side of the C-shaped groove. The distance between adjacent C-shaped groove locking wooden squares is 1.5m, which limits the horizontal displacement of the truss floor decking. After the aluminum formwork and the truss plate fixing C-shaped groove device are completed, the concrete wall is poured and the concrete is placed on the back of the C-shaped groove.

[0010] The C-shaped groove device for fixing the aluminum mold and the truss plate of the present invention can also be further implemented by adopting the following technical measures.

[0011] The aforementioned C-shaped groove device for fixing the aluminum formwork and the truss plate, wherein the buckle is a stainless steel quick-release buckle.

[0012] The aforementioned C-shaped groove device for fixing the aluminum formwork and the truss plate, wherein the buckle is provided with a spring lock.

[0013] The aforementioned C-shaped groove device for fixing the aluminum template and the truss plate, wherein the bottom template is a plastic bottom template with a thickness of ≥15mm.

[0014] The aforementioned C-shaped groove device for fixing the aluminum formwork and the truss plate, wherein the groove opening width is required to reserve an adjustment gap.

[0015] The aforementioned C-shaped groove device for fixing the aluminum formwork and the truss plate, wherein the structural adhesive is epoxy resin adhesive.

[0016] The aforementioned C-shaped groove device for fixing the aluminum formwork and the truss plate, wherein the aforementioned C-shaped groove device for fixing the aluminum formwork and the truss plate, The aforementioned C-shaped groove device for fixing the aluminum formwork and the truss plate also includes a plurality of vertical rods supported below the bottom formwork.

[0017] The aforementioned C-shaped groove device for fixing the aluminum formwork and the truss plate, wherein a pad is provided at the bottom of the connecting piece.

[0018] The aforementioned C-shaped groove device for fixing the aluminum formwork and the truss plate, wherein the buckle locking torque is 20~30N·m.

[0019] After adopting the above technical solution, the C-shaped groove device for fixing the aluminum formwork and the truss plate of the present invention has the following advantages: 1. The C-slot fixing device is quick and easy to install and disassemble, making it convenient for construction; 2. Solved the quality problem of truss floor deck sliding and warping on aluminum formwork; 3. Eliminate the problems of top plate misalignment and slurry leakage, and achieve good construction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the C-slot device in use according to an embodiment of the present invention.

[0021] In the figure: 1 concrete wall, 2 steel truss, 3 truss floor deck, 4 bottom formwork, 5 C-shaped groove, 6 wooden square, 7 iron nails, 8 vertical pole, 9 spacer, 10 connecting piece, 11 quick release buckle, 12 aluminum formwork. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the embodiments and the accompanying drawings.

[0023] Example 1 The aluminum formwork and truss plate fixing C-shaped groove device of the present invention comprises a C-shaped groove body and a truss floor deck.

[0024] Please refer to Figure 1 The C-shaped groove body is made of high-strength aluminum alloy or galvanized steel. The shape of the C-shaped groove 5 is like a channel steel. The notch height of the C-shaped groove is set according to the thickness of the truss floor deck. The lower flange plate of the C-shaped groove is provided with a bolt hole or a clip mounting hole, and a clip is provided in the clip hole; The truss floor deck 3 includes an upper steel truss 2 and a lower bottom formwork 4. An aluminum formwork 12 is provided below the bottom formwork 4 at the end of the truss floor deck. The edge of the aluminum formwork end is provided with a groove so that the upper flange plate of the C-shaped groove can be inserted into the groove. The upper flange plate is bonded and fixed in the aluminum formwork groove with structural adhesive and temporarily fixed with positioning pins. The length of the upper flange plate and the aluminum formwork strip is 200 mm. The ends of the upper flange plate and the aluminum formwork strip are provided with locking wooden squares 6 with C-shaped grooves 5. The locking wooden squares are nailed to the bottom formwork 4 with iron nails 7. A number of connecting pieces 10 are provided between the steel truss 2 and the bottom formwork 4. A plastic spacer 9 is provided between the steel truss 2 and the bottom formwork 4. During use, a C-shaped groove is installed at the end of the truss deck, allowing one end of the truss deck to be inserted into the C-shaped groove. Several C-shaped locking wood squares are welded to one side of the C-shaped groove, with adjacent C-shaped locking wood squares spaced 1.5 meters apart to limit the horizontal displacement of the truss deck. After the aluminum formwork and the C-shaped groove fixing device are installed, the concrete wall 1 is cast, and the concrete is placed on the back of the C-shaped groove. The clip is a stainless steel quick-release clip 11. The bottom formwork 4 is a 15mm thick plastic bottom formwork. The structural adhesive is epoxy resin adhesive. The width of the groove should be reserved for adjustment. Several vertical poles 8 are supported below the bottom formwork. A pad is provided at the bottom of the connector 10. The locking torque of the clip is 20N·m.

[0025] Example 2 The method for fixing the C-shaped groove device of the aluminum formwork and the truss floor deck of the present invention comprises the following steps: 1. C-slot pre-installed Aluminum mold slotting positioning: ① Reserve notches at the design line of the aluminum formwork edge to allow for adjustment clearance. Made of high-strength aluminum alloy or galvanized steel, the notch width is customized to the thickness of the truss deck, and bolt holes or clips are provided within the notch. Connecting clips: Stainless steel quick-release clips with spring-loaded locking. Cushioning: Plastic pads are embedded within the notch to prevent wear and tear from hard contact between the aluminum formwork and the truss deck.

[0026] ② Use structural adhesive (such as epoxy resin adhesive) to bond and fix the C-shaped groove into the groove of the aluminum mold, and temporarily fix it with positioning pins.

[0027] ③ After the adhesive has cured (24 hours), remove the positioning pins and check the flatness of the trough (deviation ≤ 1mm / m).

[0028] 2. Installation of truss floor deck Snap-on fixing: ① Insert the truss floor deck into the C-shaped groove and adjust it to the designed position to ensure that the plastic pad fits the truss floor deck.

[0029] ② Use the quick-release buckle to pass through the reserved hole of the C-slot and lock the edge of the truss floor deck (torque 20~30N·m).

[0030] ③ During continuous installation, the plug-in interface at the end of the C-shaped groove is used to achieve seamless splicing of multiple sections of the groove body, and a 15mm thick plastic bottom mold is set under the truss floor deck.

[0031] 3. Auxiliary reinforcement Horizontal limit rod: Install an adjustable vertical rod in the middle of the truss floor deck with a span of more than 4m to prevent sagging during concrete pouring.

[0032] Anti-lateral displacement baffle: C-groove locking wooden squares (spacing 1.5m) are welded on the outside of the C-groove to limit the horizontal displacement of the truss floor deck.

[0033] This invention possesses substantial advantages and significant technological advancements. The C-shaped groove device used to secure aluminum formwork to truss decking solves quality issues such as slippage and warping of truss decking on aluminum formwork during concrete pouring. Furthermore, this device is quick and easy to install and remove, facilitating construction. Compared to traditional construction techniques, it significantly addresses issues such as roof misalignment and grout leakage that can easily occur when combining truss decking with aluminum formwork. The device delivers excellent construction results and has promising market prospects.

[0034] The C-shaped groove device for fixing the aluminum formwork and the truss plate of the present invention has been applied in the Wanxinzhuang Phase II A Block Project and has achieved good economic benefits. The above embodiments are intended to illustrate the present invention only and are not intended to limit the present invention. Persons skilled in the art may make various modifications or variations without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions are intended to fall within the scope of the present invention and are defined by the claims.

Claims

1. A C-shaped channel device for fixing an aluminum formwork and a truss plate, comprising a C-shaped channel body and a truss floor deck, characterized in that: The C-shaped groove body is made of high-strength aluminum alloy or galvanized steel. The C-shaped groove (5) has an appearance like a channel steel. The notch height of the C-shaped groove is set according to the thickness of the truss floor deck. The lower flange plate of the C-shaped groove is provided with a bolt hole or a clip mounting hole, and a clip is provided in the clip hole. The truss floor deck (3) comprises an upper steel truss (2) and a lower bottom template (4); an aluminum template (12) is provided below the bottom template (4) at the end of the truss floor deck, and a groove is provided at the edge of the end of the aluminum template so that the upper flange plate of the C-shaped groove can be inserted into the groove, and the upper flange plate is bonded and fixed in the groove of the aluminum template with structural adhesive, and temporarily fixed with positioning pins; the length of the upper flange plate and the aluminum template strip is ≥200mm, and the ends of the upper flange plate and the aluminum template strip are provided with locking wood (6) of the C-shaped groove (5), and the locking wood is nailed and fixed to the bottom template (4) with iron nails (7); a plurality of connecting pieces (10) are provided between the steel truss (2) and the bottom template (4); a plastic pad (9) is provided between the steel truss (2) and the bottom template (4); Wherein: when in use, the C-shaped groove is set at the end of the truss floor deck, so that one end of the truss floor deck is inserted into the C-shaped groove, and a plurality of C-shaped groove locking wood squares are welded on one side of the C-shaped groove, and the spacing between adjacent C-shaped groove locking wood squares is 1.5m, which limits the horizontal displacement of the truss floor deck. After the aluminum mold and the truss plate fixing C-shaped groove device are set, the concrete wall (1) is poured, and the concrete is placed on the back of the C-shaped groove.

2. The C-shaped groove device for fixing the aluminum mold and the truss plate according to claim 1, characterized in that: The buckle is a stainless steel quick-release buckle (11).

3. The C-shaped groove device for fixing the aluminum mold and the truss plate according to claim 1, characterized in that: The buckle is provided with a spring lock.

4. The C-shaped groove device for fixing the aluminum mold and the truss plate according to claim 1, characterized in that: The bottom template (4) is a plastic bottom template with a thickness of ≥15 mm.

5. The C-shaped groove device for fixing the aluminum mold and the truss plate according to claim 1, characterized in that: The width of the groove opening should be reserved for adjustment clearance.

6. The C-shaped groove device for fixing the aluminum mold and the truss plate according to claim 1, characterized in that: The structural adhesive is epoxy resin adhesive.

7. The C-shaped groove device for fixing the aluminum mold and the truss plate according to claim 1, characterized in that: It also includes a plurality of vertical poles (8) supported below the bottom template.

8. The C-shaped groove device for fixing the aluminum mold and the truss plate according to claim 1, characterized in that: A cushion block is provided at the bottom of the connecting piece (10).

9. The C-shaped groove device for fixing the aluminum mold and the truss plate according to claim 1, characterized in that: The buckle locking torque is 20-30 N·m.

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