Laminated slab post-cast strip formwork reinforcing device and reinforcing method

Abstract

The invention provides a laminated slab post-cast strip formwork reinforcing device and method, and belongs to the technical field of building construction. The device comprises a supporting device used for being placed on a laminated slab; the fixing device is used for reinforcing the wood formwork through the connecting device; the connecting device comprises: a rotating member; one end of the screw rod is connected to the supporting device, and the other end is screwed with one end of the rotating piece; one end of the lead screw penetrates through the fixing device and then is in threaded connection with the other end of the rotating piece; the fastener is arranged at the other end of the lead screw and used for being buckled to a fixing device; and the nut is connected to the other end of the lead screw in a threaded mode, and the fastener is fastened by screwing the nut so as to reinforce the wood formwork. The supporting device, the connecting device and the fixing device are installed and combined into a set of device, the post-cast strip can be reinforced firmly through the device, slurry leakage can be prevented, the construction efficiency can be improved, and repeated use can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a composite slab post-casting strip formwork reinforcement device and a reinforcement method using the reinforcement device. Background Art

[0002] Post-cast joints are temporary construction joints set up in buildings, which are retained for a period of time before pouring. In other words, the original "extra-long" plane is "broken down into small pieces" so that the shrinkage of the concrete and the release of restraint stresses such as deformation caused by excessive vertical load differences can be completed in a shorter period of time. This "joint" not only solves the differential settlement between buildings, but also solves the shrinkage deformation and temperature stress deformation of the concrete during the entire structural construction, while achieving the goal of not setting up permanent deformation joints. Conventional composite slab post-cast joints are supported and processed with steel pipes. Due to defects in the formwork support frame, many quality problems are caused, such as uneven edges on both sides of the post-cast joints, loose joints, misaligned slab bottoms, shifted steel bars, improper control of the protective layer, and poor visual quality of the concrete surface after demolding. These are common quality problems in post-cast joint construction. Summary of the Invention

[0003] In view of this, in order to solve the above-mentioned shortcomings of conventional composite slab post-cast strips supported and processed by steel pipes, on the one hand, the present invention provides a composite slab post-cast strip formwork reinforcement device, which is assembled into a set of devices through a supporting device, a connecting device and a fixing device. The device can be used to firmly reinforce the post-cast strip to prevent leakage, thereby improving construction efficiency and reuse.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A composite slab post-casting strip formwork reinforcement device, comprising:

[0006] A supporting device for placing on the laminated plate;

[0007] Fixing device, which is used to reinforce the wooden formwork through connecting devices;

[0008] The connecting device comprises:

[0009] rotating parts;

[0010] a screw, one end of which is connected to the supporting device and the other end of which is screwed to one end of the rotating member;

[0011] A screw rod, one end of which passes through the fixing device and is screwed to the other end of the rotating member;

[0012] a fastener, provided at the other end of the lead screw, for fastening to the fixing device;

[0013] A nut is screwed to the other end of the screw rod, and the fastener is fastened by tightening the nut to reinforce the wooden formwork.

[0014] Preferably, the rotating member is a vertebral body.

[0015] Preferably, the vertebral body is a plastic vertebral body.

[0016] Preferably, the supporting device is a supporting steel bar.

[0017] Preferably, the fastener is a mountain-shaped fastener.

[0018] Preferably, the fixing device is a channel steel.

[0019] On the other hand, the present invention also provides a reinforcement method for the above-mentioned composite slab post-casting strip formwork reinforcement device, comprising the following steps:

[0020] Step (1), placing the support device on the composite plate;

[0021] Step (2), screwing one end of the rotating member onto the screw;

[0022] Step (3), opening holes on the wooden template at positions corresponding to the screw rods, and fixing the wooden template with wooden planks;

[0023] Step (4): Pass one end of the screw rod through the hole of the wooden template and screw it to the other end of the rotating member, and connect the screw rod and the screw rod into a whole through the rotating member; after passing the fixing device through the other end of the screw rod, install the fastener and the nut in sequence, and complete the overall reinforcement of the wooden template by tightening the nut;

[0024] Step (5): After the concrete pouring is completed, the nuts, fasteners and fixing devices are removed in sequence; then the wooden planks and wooden formwork are removed, and the screws and screws are unscrewed; finally, the holes are sealed with polymer mortar to complete the construction.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] Reliable reinforcement prevents grout leakage: The post-cast strip is firmly reinforced through a combination of support, connection, and fixing devices. This directly solves the technical problem of concrete grout leakage in traditional post-cast strip construction. Ensuring the density, appearance quality, and structural connection strength of the post-cast strip concrete is crucial.

[0027] Improve construction efficiency: The reinforcement device of the present invention is a pre-designed and assembled system. The installation and erection process is relatively standard and simple. Compared with the traditional loose formwork method, it can significantly save formwork time, thereby improving overall construction efficiency.

[0028] Reusability reduces costs: The reinforcement device of the present invention can be used multiple times in different post-casting zone locations or different projects, effectively reducing material loss and single construction costs.

[0029] Save labor and materials: No scaffolding is required, only simple mobile scaffolding is used. This reduces or even eliminates the workload of traditional full-floor or large-scale scaffolding specially arranged for supporting the post-casting strip formwork.

[0030] Saving labor: Setting up and dismantling a large number of scaffolds requires a lot of labor. The reinforcement device of the present invention is easy to dismantle and move and can be reused, which greatly saves labor input.

[0031] Save materials: Greatly reduce the use of scaffolding rods, fasteners, etc., especially the rental or procurement costs and transportation and management costs.

[0032] Complying with green construction requirements: reducing material consumption, reducing construction waste (turnover), and reducing labor consumption, the design and application concept of the reinforcement device of the present invention are highly consistent with the green, environmentally friendly, and sustainable construction requirements advocated by the modern construction industry.

[0033] Easy to operate and improve construction convenience: The systematic design of the reinforcement device of the present invention reduces the complexity of assembling parts, simplifies the process, reduces the difficulty of operation, and improves the safety and controllability of construction operations.

[0034] In summary, this invention reliably solves the problem of reinforcing and preventing leaks in the post-casting strip formwork of composite slabs through a standardized, reusable, dedicated device in a more efficient, economical, environmentally friendly, and convenient manner. It effectively balances multiple construction objectives, including quality, efficiency, cost, and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 This is a structural effect diagram of the present invention after assembly;

[0037] Figure 3 This is the front view of the present invention after assembly;

[0038] In the figure, 1. fixing device; 2. supporting device; 3. screw; 4. vertebral body; 5. fastener; 6. nut; 7. composite plate; 8. wooden square; 9. wooden formwork; 10. screw. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work shall fall within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0042] like Figure 1-3 As shown, the present invention provides a device for reinforcing the post-casting strip of a composite slab 7, comprising:

[0043] The support device 2 is used to be placed on the composite plate 7. In the present invention, the support device 2 preferably supports the steel bars, such as Figure 2-3 As shown, the supporting steel bar is placed horizontally on the composite plate 7. The composite plate 7 is supported by a wooden template 9 below, and the wooden template 9 is supported by a wooden square 8 below.

[0044] The fixing device 1 is used to reinforce the wooden template 9 through the connecting device. In the present invention, the fixing device 1 is preferably a channel steel, which is also preferably placed horizontally to support and reinforce the wooden square 8 and then reinforce the wooden template 9 and the composite board 7.

[0045] The connecting device comprises:

[0046] The rotating part is preferably a cone body 4, more preferably a plastic cone body.

[0047] A screw rod 3, one end of which is connected to the supporting device 2, and the other end of which is screwed to one end of the rotating member;

[0048] A screw rod 10, one end of which passes through the fixing device 1 and is screwed to the other end of the rotating member;

[0049] The fastener 5 is provided at the other end of the lead screw and is used to be fastened to the fixing device 1. The fastener 5 is preferably a mountain-shaped fastener 5.

[0050] The nut 6 is screwed to the other end of the screw rod 10 , and the fastener 5 is fastened by tightening the nut 6 to reinforce the wooden template 9 .

[0051] The reinforcement device provided by the present invention has the following advantages:

[0052] (1) Modular design: The reinforcement device consists of a support device 2, a fixing device 1, and a connecting device. Components such as the supporting steel bars, channel steel, cone 4, screw 3, lead screw 10, fastener 5), and nut 6 are all standardized or easily prefabricated materials / components. This facilitates factory production, transportation, and on-site assembly, improves construction efficiency, and ensures quality consistency.

[0053] (2) Efficient and reliable reinforcement system: A clear force transmission path is adopted: fastener 5 → nut 6 tightening → screw 10 → rotating part → screw 3 → support device 2 → composite plate 7. At the same time, the screw 10 applies a reverse force downward through the fixing device 1, and the channel steel presses the wooden square 8 → wooden formwork 9 → the bottom of the composite plate 7. A closed-loop force system is formed, which tightly connects and presses the upper support and the lower formwork, effectively solving the problem of stable support between the upper and lower composite plates 7 at the post-casting zone, and preventing mold expansion, leakage or displacement.

[0054] (3) Adjustability and applicability: By screwing the screw 3 and the screw 10 to the cone 4, the distance between the screw 3 and the screw 10 can be adjusted. This greatly increases the adjustable range of the device, and can accommodate certain errors or variations in the thickness of the on-site composite board 7, the thickness of the wooden formwork 9, the size of the wooden planks 8, and the installation position of the formwork system, thereby improving the applicability and fault tolerance of the device. The plastic cone 4 also facilitates manual rotation.

[0055] (4) Use of mature components, high reliability: Channel steel is selected as the fixing device 1, which has high strength and good rigidity, and can stably support and transfer loads. Standard mountain buckles are selected as fasteners 5, which are simply and reliably fixed to the channel steel and have stable load-bearing performance. Screws 3, screws 10, and nuts 6 are mature and reliable mechanical fasteners. The bottom support of wooden formwork 9 + wooden squares 8 is also a mature and reliable traditional method. The entire system is based on reliable components and materials that have been tested in practice, reducing technical risks and ensuring the stability and predictability of the overall reinforcement effect.

[0056] (5) Highly targeted and cost-effective: It is specially designed to solve the difficulties in supporting and reinforcing the post-casting strip of the composite slab 7. Compared with traditional methods (such as a large number of welded supports, scaffolding top supports, etc.), this device system can complete the task of this specific part more effectively and firmly, reduce material and labor waste, simplify the construction process, and indirectly reduce costs.

[0057] In summary, the core advantage of the present invention lies in its modular, height-adjustable and easy-to-operate structural design. By cleverly utilizing rotating parts, the distance between the screw 3 and the lead screw 10 can be flexibly adjusted, and a closed-loop force transmission path is formed in conjunction with the channel steel and the mountain-shaped fastener 5. This specifically, efficiently and reliably solves the problem of the difficulty in firmly reinforcing the formwork at the post-casting zone of the composite slab 7, thereby improving construction quality and efficiency and reducing construction risks and costs.

[0058] On the other hand, the present invention also provides a method for reinforcing the above-mentioned composite slab 7 post-casting strip formwork reinforcement device, comprising the following steps:

[0059] Step (1), placing the support device 2 (support steel bars) above the composite plate 7;

[0060] Step (2): Screw one end of the rotating member onto the screw rod 3. The screw rod 3 may be pre-welded to the support steel bar. To improve the convenience of construction, the support steel bar and the screw rod 3 are usually pre-welded together.

[0061] Step (3): Open a diameter hole on the wooden template 9 at the position corresponding to the screw rod 10. The holes are formed and the wooden template 9 is fixed with wooden squares 8;

[0062] Step (4): Pass one end of the screw rod 10 through the hole of the wooden template 9 and screw it to the other end of the rotating member, and connect the screw rod 10 and the screw rod 3 into a whole through the rotating member; after the fixing device 1 is passed through the other end of the screw rod 10, the fastener 5 and the nut 6 are installed in sequence, and the overall reinforcement of the wooden template 9 is completed by tightening the nut 6 to reduce concrete leakage;

[0063] Step (5): After the concrete pouring is completed, the nut 6, fastener 5 and fixing device 1 are removed in sequence; then the wooden square 8 and wooden template 9 are removed, and the screw 10 and screw 3 are unscrewed; finally, the hole is sealed with polymer mortar to complete the construction.

[0064] The method for reinforcing by using the reinforcing device of the present invention is simple to operate and can provide great convenience for the construction of the post-casting strip of the composite plate 7.

[0065] The above description is merely a preferred embodiment of the present invention. However, the scope of protection of the present invention is not limited thereto; any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A composite slab post-casting strip formwork reinforcement device, characterized in that: include: A supporting device for placement on the laminated plate; Fixing device, which is used to reinforce the wooden formwork through connecting devices; The connecting device comprises: rotating parts; a screw, one end of which is connected to the supporting device and the other end of which is screwed to one end of the rotating member; A screw rod, one end of which passes through the fixing device and is screwed to the other end of the rotating member; a fastener, provided at the other end of the lead screw, for fastening to the fixing device; A nut is screwed to the other end of the screw rod, and the fastener is fastened by tightening the nut to reinforce the wooden formwork.

2. A composite slab post-casting strip formwork reinforcement device according to claim 1, characterized in that: The rotating member is a vertebral body.

3. A composite slab post-casting strip formwork reinforcement device according to claim 2, characterized in that: The vertebral body is a plastic vertebral body.

4. The device for supporting and reinforcing the post-casting strip of a composite slab according to claim 1, characterized in that: The supporting device is a supporting steel bar.

5. The device for supporting and reinforcing the post-casting strip of a composite slab according to claim 1, characterized in that: The fastener is a mountain-shaped fastener.

6. A composite slab post-casting strip formwork reinforcement device according to any one of claims 1 to 5, characterized in that: The fixing device is a channel steel.

7. A reinforcement method for a composite slab post-casting strip formwork reinforcement device according to any one of claims 1 to 6, characterized in that: The steps include: Step (1), placing the support device on the composite plate; Step (2), screwing one end of the rotating member onto the screw; Step (3), opening holes on the wooden template at positions corresponding to the screw rods, and fixing the wooden template with wooden planks; Step (4): Pass one end of the screw rod through the hole of the wooden template and screw it to the other end of the rotating member, and connect the screw rod and the screw rod into a whole through the rotating member; after passing the fixing device through the other end of the screw rod, install the fastener and the nut in sequence, and complete the overall reinforcement of the wooden template by tightening the nut; Step (5): After the concrete pouring is completed, the nuts, fasteners and fixing devices are removed in sequence; then the wooden planks and wooden formwork are removed, and the screws and screws are unscrewed; finally, the holes are sealed with polymer mortar to complete the construction.

Images