Prefabricated laminated slab forming device

Abstract

The utility model belongs to the technical field of house components, and particularly relates to a prefabricated laminated slab forming device which comprises a mold table and further comprises a mold body arranged on the mold table and comprising a first side mold and a second side mold. The reinforcing mesh comprises longitudinal reinforcing steel bars and transverse reinforcing steel bars which are perpendicular to each other; the protective layer cushion blocks are arranged below the reinforcing mesh and connected with the joints of the longitudinal reinforcing steel bars and the transverse reinforcing steel bars; the binding ropes are used for binding the protective layer cushion blocks with the longitudinal steel bars and the transverse steel bars; the reinforcement cage is arranged above the reinforcement mesh and used for bearing temporary loads in the construction stage; wherein the first side formwork and the second side formwork are mutually spliced to form a pouring groove, and the reinforcing mesh and the protective layer cushion block are both located in the pouring groove. The construction method has the beneficial effects that the protective layer cushion blocks are arranged below the reinforcing mesh and connected with the joints of the longitudinal reinforcing steel bars and the transverse reinforcing steel bars, and it is guaranteed that the reinforcing mesh and the bottom face of the mold table keep the designed distance.

Description

A precast composite slab forming device Technical Field

[0001] This application belongs to the field of building component technology, and in particular relates to a precast composite slab forming device. Background Technology

[0002] Composite slabs are assembled monolithic floor slabs made by stacking precast slabs and cast-in-place reinforced concrete layers. They feature good integrity, smooth upper and lower surfaces, and ease of finishing, making them suitable for high-rise buildings and large-span buildings with high requirements for overall rigidity. The precast slabs are used as the bottom formwork for the cast-in-place concrete layer, eliminating the need for supporting formwork for the cast-in-place concrete layer.

[0003] When prefabricating composite slabs, the mold needs to be fixed on a platform, then the steel mesh is hoisted into the mold, and concrete is poured into the mold to embed the steel mesh. After the concrete is poured, the mold is usually vibrated to ensure that the concrete is evenly distributed within the mold and to dislodge any air trapped in the concrete, thereby improving the overall strength of the composite slab.

[0004] However, existing molding equipment still has problems with the sinking or displacement of the steel mesh during the prefabrication of composite slabs, which ultimately leads to positioning problems of the steel mesh and needs to be improved. Summary of the Invention

[0005] The purpose of this application is to provide a precast composite slab forming device that can solve the above-mentioned problems.

[0006] The purpose of this application is to provide a precast composite slab forming device, including a mold table, and further comprising:

[0007] The mold body is set on the mold platform and includes a first side mold and a second side mold;

[0008] Reinforcing mesh, including mutually perpendicular longitudinal and transverse reinforcing bars;

[0009] Protective layer spacers are placed below the reinforcing mesh and are connected to the junctions of longitudinal and transverse reinforcing bars.

[0010] Binding ropes are used to tie the protective layer pads together with the longitudinal and transverse reinforcing bars;

[0011] A reinforcing cage is placed above a reinforcing mesh to bear temporary loads during the construction phase.

[0012] The first and second side molds are spliced ​​together to form a casting trough, and the steel mesh and protective layer pads are located inside the casting trough.

[0013] Furthermore, the top of the protective layer pad is provided with an arc-shaped groove adapted to the longitudinal and transverse reinforcing bars, and the bottom is provided with a limiting groove for binding.

[0014] Furthermore: multiple protective layer pads are provided, and the multiple protective layer pads are arranged in a quincunx pattern.

[0015] Furthermore, the first side mold is provided with a first positioning groove for erecting transverse reinforcing bars, and multiple first positioning grooves are provided and evenly distributed.

[0016] Furthermore, the second side mold is provided with a second positioning groove for erecting longitudinal reinforcing bars, and multiple second positioning grooves are provided and evenly distributed.

[0017] Furthermore, the reinforcing cage includes:

[0018] upper string tendon;

[0019] Two web reinforcement bars are provided and bent into place.

[0020] There are two lower chord reinforcements.

[0021] The top chord, web reinforcement, and bottom chord are welded together, and the top chord and the two bottom chords are arranged in a triangular pattern.

[0022] Furthermore, the lower part of the reinforcing cage is located inside the casting trough, and the top part is located on the outer wall of the casting trough.

[0023] The beneficial effects of this application are:

[0024] 1. By placing protective layer spacers below the reinforcing mesh and connecting them to the intersections of longitudinal and transverse reinforcing bars, the designed spacing between the reinforcing mesh and the bottom surface of the formwork is ensured. The spacers directly support the reinforcing mesh, preventing it from sinking due to the weight of the concrete or vibration pressure.

[0025] 2. The protective layer spacers are tied to the longitudinal and transverse reinforcing bars with binding ropes to form an integral structure, further preventing the reinforcing mesh from shifting due to concrete flow during vibration. The binding operation is simple and can quickly fix the reinforcing mesh to the spacers, improving construction efficiency.

[0026] 3. In addition, a steel cage is set above the steel mesh to bear temporary loads during the construction phase (such as the weight of hoisting and cast-in-place concrete), reducing the need for temporary supports. Attached Figure Description

[0027] Figure 1 is a structural schematic diagram of this utility model;

[0028] Figure 2 is an enlarged view of A in Figure 1.

[0029] The attached figures are labeled as follows: 100, mold platform; 200, mold body; 210, first side mold; 211, first positioning groove; 220, second side mold; 221, second positioning groove; 230, casting groove; 300, steel mesh; 310, longitudinal steel bar; 320, transverse steel bar; 400, protective layer pad; 410, arc-shaped groove; 420, limiting groove; 500, binding rope; 600, steel cage; 610, top chord bar; 620, web bar; 630, bottom chord bar. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0031] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0032] The precast composite slab forming device provided in this application will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.

[0033] Example 1:

[0034] As shown in Figures 1 and 2, this application provides a precast composite slab forming device, including a mold table 100, and further comprising:

[0035] The mold body 200 is disposed on the mold table 100 and includes a first side mold 210 and a second side mold 220;

[0036] The reinforcing mesh 300 includes mutually perpendicular longitudinal reinforcing bars 310 and transverse reinforcing bars 320;

[0037] The protective layer spacer 400 is set below the steel mesh 300, and the protective layer spacer 400 is connected to the intersection of the longitudinal steel bar 310 and the transverse steel bar 320.

[0038] Binding rope 500 is used to bind the protective layer pad 400 together with the longitudinal steel bar 310 and the transverse steel bar 320;

[0039] A 600mm steel cage is placed above a 300mm steel mesh to bear temporary loads during the construction phase.

[0040] The first side mold 210 and the second side mold 220 are spliced ​​together to form a casting trough 230, and the steel mesh 300 and the protective layer pad 400 are located in the casting trough 230.

[0041] In some embodiments of this application, as shown in Figure 1, a precast composite slab forming device is used. By placing a protective layer pad 400 below the reinforcing mesh 300 and connecting it to the junction of the longitudinal reinforcing bars 310 and the transverse reinforcing bars 320, the designed spacing between the reinforcing mesh 300 and the bottom surface of the formwork 100 is maintained. The pad directly supports the reinforcing mesh 300, preventing it from sinking due to the weight of the concrete or vibration pressure. Simultaneously, the protective layer pad 400 is tied and fixed to the longitudinal reinforcing bars 310 and the transverse reinforcing bars 320 using binding ropes 500, forming an integral structure and further preventing the reinforcing mesh 300 from shifting due to concrete flow during vibration. The binding operation is simple and can quickly fix the reinforcing mesh 300 to the pad, improving construction efficiency. Furthermore, a reinforcing cage 600 is set above the reinforcing mesh 300 to bear temporary loads during the construction phase (such as the weight of hoisting and cast-in-place concrete), reducing the need for temporary supports.

[0042] When manufacturing precast composite slabs, first use a brush or other cleaning device to clean the mold platform 100, removing oil stains and concrete residue. Then, apply a release agent evenly, mark the positioning lines, and assemble the first side mold 210 and the second side mold 220 according to the assembly sequence. Install the longitudinal reinforcing bars 310 and the transverse reinforcing bars 320 onto the mold body 200, then install the reinforcing cage 600, and then install the protective layer spacers 400 under the reinforcing mesh 300. Plastic spacers are preferred for the protective layer spacers 400. Then, use binding ropes 500 (made of metal) to tie the protective layer spacers to the reinforcing mesh 300. After installation, compare and accept the position, spacing, and quantity of the longitudinal reinforcing bars 310 and the transverse reinforcing bars 320 according to the design drawings, and clean the garbage and debris on the mold platform again. Concrete is poured and vibrated using a horizontal pouring method. After pouring, the surface is smoothed and polished, and roughened before the concrete reaches its initial setting state. Steam curing is then carried out. After 13 hours of curing, the formwork is removed, and curing continues for another week. After curing, the composite slab is hoisted to a cleaning area for rinsing. Local damage that does not affect structural performance and non-stress cracks on the surface are then repaired with repair grout. Finally, the concrete is color-matched, and quality acceptance is carried out after completion.

[0043] Example 2:

[0044] This application provides a prefabricated composite slab forming device. In addition to the above-mentioned technical features, the prefabricated composite slab forming device of this application also includes the following technical features.

[0045] As shown in Figures 1 and 2, the top of the protective layer pad 400 is provided with an arc-shaped groove 410 that is compatible with the longitudinal reinforcing bars 310 and the transverse reinforcing bars 320, and the bottom is provided with a limiting groove 420 for binding.

[0046] In this embodiment, the top of the protective layer pad 400 has an arc-shaped groove 410 adapted to the longitudinal reinforcing bars 310 and the transverse reinforcing bars 320, which allows the reinforcing bars to be accurately embedded in the groove, increasing the contact area and preventing the reinforcing bars from sliding or shifting during vibration. Simultaneously, because the position of the reinforcing bars is limited after being embedded in the arc-shaped groove 410, the overall positioning of the reinforcing mesh 300 is ensured to be accurate. Furthermore, the bottom of the protective layer pad 400 has a limiting groove 420 for binding, which facilitates the fixing of the binding rope 500. The limiting groove 420 provides a fixing point for the binding rope 500, making the binding process more convenient and faster, and ensuring a firm connection between the reinforcing mesh 300 and the pad.

[0047] Furthermore: multiple protective layer pads 400 are provided, and the multiple protective layer pads 400 are arranged in a quincunx pattern.

[0048] The quincunx arrangement makes the pad blocks more evenly distributed, avoiding the sinking of the steel mesh 300 due to insufficient local support. The staggered pad blocks form a stable support network, preventing the steel mesh 300 from loosening. It also ensures that the distance between each part of the steel mesh 300 and the bottom surface of the formwork 100 is consistent, and the protective layer thickness is uniform, further solving the problem of steel mesh 300 offset.

[0049] Example 3:

[0050] This application provides a prefabricated composite slab forming device. In addition to the above-mentioned technical features, the prefabricated composite slab forming device of this application also includes the following technical features.

[0051] As shown in Figure 1, the first side mold 210 is provided with a first positioning groove 211 for erecting transverse reinforcing bars 320. Multiple first positioning grooves 211 are provided and evenly distributed.

[0052] In this embodiment, multiple evenly distributed first positioning slots 211 are provided on the first side mold 210 for supporting transverse reinforcing bars 320. The positioning slots provide a fixed support position for the transverse reinforcing bars 320, further ensuring that they will not shift horizontally during the pouring process. Simultaneously, during installation, construction personnel can directly embed the transverse reinforcing bars 320 into the positioning slots, simplifying the operation process.

[0053] Furthermore, the second side mold 220 is provided with a second positioning groove 221 for erecting longitudinal reinforcing bars 310, and multiple second positioning grooves 221 are provided and evenly distributed.

[0054] The second positioning groove 221 provides a fixed erection position for the longitudinal steel bar 310, further ensuring that it will not shift during the pouring process. The longitudinal steel bar 310 and the transverse steel bar 320 intersect each other through the positioning groove to form a stable steel mesh 300 skeleton.

[0055] Example 4:

[0056] This application provides a prefabricated composite slab forming device. In addition to the above-mentioned technical features, the prefabricated composite slab forming device of this application also includes the following technical features.

[0057] As shown in Figure 1, the steel cage 600 includes:

[0058] Upper string rib 610;

[0059] The web reinforcement is 620mm, and two of them are bent into place.

[0060] The lower chord reinforcement is 630mm, and there are two of them.

[0061] Among them, the upper chord 610, the web 620, and the lower chord 630 are welded together, and the upper chord 610 and the two lower chord 630 are distributed in a triangular shape.

[0062] In this embodiment, the top chord reinforcement 610 serves as the top support of the reinforcing cage 600, bearing part of the construction load. It is horizontally arranged and welded to the web reinforcement 620 and the bottom chord reinforcement 630 to enhance overall stability. Two web reinforcements 620 are provided, arranged in a bent shape, serving as diagonal supports for the reinforcing cage 600, providing bending and shear resistance. The bent shape increases the contact area between the web reinforcement 620 and the concrete, improving adhesion. The two web reinforcements 620 are symmetrically arranged, enhancing the overall stiffness and stability of the reinforcing cage 600. Two bottom chord reinforcements 630 are provided, serving as the bottom support of the reinforcing cage 600. Together with the top chord reinforcement 610 and the web reinforcement 620, they form a stable triangular structure. They are horizontally arranged and welded to the top chord reinforcement 610 and the web reinforcement 620, forming a robust load-bearing frame.

[0063] The top chord reinforcement 610, web reinforcement 620 and bottom chord reinforcement 630 are connected to each other by welding to form an integrated steel cage 600 structure. The welding connection makes the various parts of the steel cage 600 tightly connected, avoiding loosening or displacement, and can also better withstand the temporary loads during the construction stage and prevent the steel mesh 300 from deforming.

[0064] Furthermore, the lower part of the reinforcing cage 600 is located inside the casting trough 230, and the top part is located on the outer wall of the casting trough 230.

[0065] The lower part of the steel cage 600 is located inside the pouring trough 230 to ensure a firm bond with the concrete, while the top is located outside the pouring trough 230, forming an exposed support part. The exposed part serves as a hoisting support point, which facilitates the fixing and operation of the hoisting equipment and ensures the stability of the steel cage 600 during transportation. No additional pre-embedded lifting rings are required.

[0066] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0067] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A precast composite slab forming device, comprising a mold table (100), characterized in that: Also includes: The mold body (200) is set on the mold table (100) and includes a first side mold (210) and a second side mold (220); the steel mesh (300) includes mutually perpendicular longitudinal steel bars (310) and transverse steel bars (320); the protective layer pad (400) is set below the steel mesh (300) and is connected to the junction of the protective layer pad (400) and the longitudinal steel bars (310) and the transverse steel bars (320); the binding rope (50) 0), used to tie the protective layer pad (400) together with the longitudinal reinforcement (310) and the transverse reinforcement (320); the reinforcement cage (600) is set above the reinforcement mesh (300) and is used to bear the temporary load during the construction stage; wherein, the first side form (210) and the second side form (220) are spliced ​​together to form a pouring trough (230), and the reinforcement mesh (300) and the protective layer pad (400) are both located in the pouring trough (230).

2. The precast composite slab forming device according to claim 1, characterized in that: The top of the protective layer pad (400) is provided with an arc-shaped groove (410) adapted to the longitudinal reinforcing bars (310) and the transverse reinforcing bars (320), and the bottom is provided with a limiting groove (420) for binding.

3. The precast composite slab forming device according to claim 2, characterized in that: Multiple protective layer pads (400) are provided, and the multiple protective layer pads (400) are arranged in a quincunx pattern.

4. The precast composite slab forming device according to claim 1, characterized in that: The first side mold (210) is provided with a first positioning groove (211) for erecting transverse reinforcing bars (320), and there are multiple first positioning grooves (211) evenly distributed.

5. The precast composite slab forming device according to claim 1, characterized in that: The second side mold (220) is provided with a second positioning groove (221) for erecting longitudinal reinforcing bars (310), and multiple second positioning grooves (221) are provided and evenly distributed.

6. The precast composite slab forming device according to claim 1, characterized in that: The steel cage (600) includes: an upper chord bar (610); two web bars (620) that are bent; and two lower chord bars (630). The upper chord bar (610), web bars (620), and lower chord bars (630) are welded together, and the upper chord bar (610) and the two lower chord bars (630) are arranged in a triangular distribution.

7. The precast composite slab forming device according to claim 6, characterized in that: The lower part of the steel cage (600) is located inside the casting trough (230), and the top part is located on the outer wall of the casting trough (230).

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