Prefabricated laminated slab

Abstract

The utility model relates to the field of fabricated structure provides a kind of fabricated composite board, including the upper main muscle (1) of hook, the lower main muscle of hook, the distribution muscle of hook, W-shaped board strip and bottom plate, the composite board includes the upper main muscle of hook, the lower main muscle of hook, the distribution muscle of hook, W-shaped board strip and bottom plate.Multiple W-shaped board strip longitudinal horizontal arrangement, two lower main muscle of hook are respectively longitudinally horizontally inserted and embedded in the two lower bending of W-shaped board strip, one upper main muscle of hook is longitudinally horizontally inserted and embedded in the upper bending of W-shaped board strip, form a longitudinal horizontal skeleton strip, multiple longitudinal horizontal skeleton strip forms horizontal array.Through the reasonable structure, arrangement and intercalation connection of the upper main muscle of hook, the lower main muscle of hook, the distribution muscle of hook, W-shaped board strip, the composite board provided has the advantages that structure is more reasonable, integrity is better, interface stress performance is more superior, manufacturing is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated structures, specifically a prefabricated composite panel. Background Technology

[0002] In civil engineering, traditional on-site casting construction of concrete structures suffers from drawbacks such as long construction periods, complex on-site organization, and high resource consumption. In contrast, prefabricated concrete structures feature modularity, standardization, large-scale production, and industrialization, improving the quality and efficiency of concrete structure construction, reducing construction costs and energy consumption. They offer significant advantages in quality control, cost control, schedule control, energy conservation, and environmental protection, and have excellent development prospects.

[0003] As a widely used prefabricated structure in structural engineering, conventional reinforced truss composite slabs typically employ chord and web reinforcement to form a steel truss, with a concrete slab poured beneath the truss to form the entire structure. Although reinforced truss composite slabs offer significant advantages over traditional cast-in-place concrete slabs in prefabricated construction, the ease of assembly, manufacturing, and construction still needs improvement. Furthermore, the shear resistance and uplift resistance of the interface between the composite slab and the upper cast-in-place concrete slab need to be enhanced, and the overall structural integrity requires further strengthening. Utility Model Content

[0004] The purpose of this utility model is to provide a prefabricated composite slab, which, through the reasonable shape, arrangement and interlocking connection of the upper main reinforcement with hooks, the lower main reinforcement with hooks, the distribution reinforcement with hooks, and the W-shaped strips, makes the structure of the composite slab more reasonable, the integrity better, the manufacturing more convenient, and the construction more convenient, and further enhances the shear resistance and uplift resistance of the interface between the composite slab and the upper post-cast concrete.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model provides a prefabricated composite slab, including upper main ribs with hooks, lower main ribs with hooks, distribution ribs with hooks, W-shaped strips, and a base plate.

[0007] Preferably, multiple W-shaped strips are arranged longitudinally and horizontally, with two lower main reinforcing bars with hooks longitudinally and horizontally inserted into the two lower bends of the W-shaped strips, and an upper main reinforcing bar with hooks longitudinally and horizontally inserted into the upper bend of the W-shaped strips, forming a longitudinal reinforcing skeleton strip, and multiple longitudinal horizontal reinforcing skeleton strips forming a horizontal array.

[0008] Preferably, the hooked distribution bars pass horizontally through multiple longitudinal reinforcement skeleton bars along the upper edge of the hooked lower main reinforcement bars, connecting the multiple longitudinal reinforcement skeleton bars laterally to form the reinforcement skeleton of the entire prefabricated composite slab.

[0009] Preferably, the upper main reinforcement with hooks, the lower main reinforcement with hooks, and the distribution reinforcement with hooks are reserved with a specified lap length at both ends, the upper part of the W-shaped strips is left empty with a specified height, and a base plate of a specified thickness is poured on the lower part of the entire reinforcement skeleton on the template, which is then cured and hardened to form the entire prefabricated composite slab.

[0010] Preferably, the bending shape of the lower and upper bends of the W-shaped strip includes one or more of the following: arc, acute angle, right angle, and obtuse angle bends.

[0011] Preferably, the hooked upper main reinforcement, the hooked lower main reinforcement, and the hooked distribution reinforcement have hooks at both ends that are opposite in direction.

[0012] Preferably, the materials used for the upper main reinforcement with hooks, the lower main reinforcement with hooks, and the distribution reinforcement with hooks include one or more of the following: steel bars, fiber reinforcement, steel strands, steel wire, composite material reinforcement, polymer reinforcement, and bamboo reinforcement.

[0013] Preferably, the W-shaped slats are made of steel.

[0014] Preferably, the upper main reinforcement bars with hooks, the lower main reinforcement bars with hooks, the distribution bars with hooks, and the W-shaped strips are connected by welding or binding where they intersect.

[0015] Preferably, the base plate is made of one or more of the following materials: high-strength concrete, high-performance concrete, fiber-reinforced concrete, ultra-high-performance concrete, polymer concrete, and ordinary concrete.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] The W-shaped strips in this invention are very easy to manufacture, and are more efficient and convenient to manufacture than the complex steel trusses in conventional steel truss composite slab structures.

[0018] In this invention, the upper main reinforcement, lower main reinforcement, and distribution reinforcement have hooks at both ends that are bent in opposite directions. When multiple composite slabs are connected to each other or when the composite slabs are connected to other components, the composite slabs and other components can be more fully overlapped through the hooks, thus forming a better overall structure.

[0019] The construction of the upper main reinforcement with hooks, the lower main reinforcement with hooks, the distribution reinforcement with hooks, and the W-shaped strips in the cross-section of this utility model enables a self-tightening effect after the post-cast concrete is formed on the composite slab, which is more stable than the steel reinforcement skeleton of the existing steel truss composite slab.

[0020] The shape, structure, and interlocking connections of each part in this utility model can more fully secure more post-cast concrete under the W-shaped strips, making the tangential shear resistance and normal uplift resistance of the interface between the composite slab and the post-cast concrete of this utility model higher than those of conventional steel truss composite slab structures, and the overall structure is better. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the assembled composite plate of this utility model.

[0022] Figure 2 This is a side view of the assembled composite plate of this utility model.

[0023] Figure 3 This is a longitudinal side view of the assembled composite plate of this utility model.

[0024] Figure 4 This is a perspective view of the rib frame of the prefabricated composite slab of this utility model.

[0025] Figure 5 This is an exploded view of the components of the prefabricated composite slab of this utility model.

[0026] In the diagram, 1. Upper main reinforcement with hooks; 2. Lower main reinforcement with hooks; 3. Distribution reinforcement with hooks; 4. W-shaped strips; 5. Base plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] It should be understood that the terms "upper", "lower", "horizontal", "top", "bottom", "horizontal", "vertical", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two connected entities are not connected through an intermediate structure, but rather formed as a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0031] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] Please see Figures 1 to 5 An assembled composite slab is shown, including a hooked upper main rib 1, a hooked lower main rib 2, hooked distribution ribs 3, W-shaped strips 4, and a base plate 5.

[0033] See Figures 1 to 5 The schematic diagram shows that the bending shape of each W-shaped slat 4 at the lower and upper bends includes one or more of the following: arc, acute angle, right angle, and obtuse angle bends. The W-shaped slat 4 is very easy to manufacture, and its manufacturing efficiency is higher and more convenient than that of complex steel trusses in conventional steel truss composite slab structures.

[0034] Multiple W-shaped strips 4 are arranged longitudinally and horizontally. Two lower main reinforcing bars 2 with hooks are longitudinally and horizontally inserted into the two lower bends of the W-shaped strips 4. A upper main reinforcing bar 1 with hooks is longitudinally and horizontally inserted into the upper bend of the W-shaped strips 4, forming a longitudinal reinforcing skeleton. Multiple longitudinal horizontal reinforcing skeletons form a horizontal array.

[0035] See Figures 1 to 5 The schematic diagram shows that the hooked distribution reinforcement 3 passes horizontally through multiple longitudinal reinforcement skeleton strips along the upper edge of the hooked lower main reinforcement 2, connecting the multiple longitudinal reinforcement skeleton strips horizontally to form the reinforcement skeleton of the entire prefabricated composite slab.

[0036] See Figures 1 to 5The diagram shows the upper main reinforcement bar 1 with hooks, the lower main reinforcement bar 2 with hooks, and the distribution reinforcement bar 3 with hooks. The hooks at both ends are opposite in direction. When multiple composite slabs are connected to each other or when the composite slabs are connected to other components, the composite slabs and other components can be more fully overlapped through the hooks, thus forming a better overall structure.

[0037] The materials used for the hooked upper main reinforcement 1, hooked lower main reinforcement 2, and hooked distribution reinforcement 3 include one or more of the following: steel bars, fiber reinforcement, steel strand, steel wire, composite material reinforcement, polymer reinforcement, and bamboo reinforcement. The W-shaped slats 4 are made of steel. Where the hooked upper main reinforcement 1, hooked lower main reinforcement 2, hooked distribution reinforcement 3, and W-shaped slats 4 intersect, they are connected by welding or binding. The cross-sectional construction of the hooked upper main reinforcement 1, hooked lower main reinforcement 2, hooked distribution reinforcement 3, and W-shaped slats 4 allows for a self-tightening effect after the post-cast concrete is formed on the composite slab, resulting in greater stability than the steel reinforcement skeleton of conventional steel truss composite slabs.

[0038] The upper main reinforcement bar 1 with hooks, the lower main reinforcement bar 2 with hooks, and the distribution reinforcement bar 3 with hooks are designed with a specified lap length at both ends. The W-shaped strip 4 has a specified height gap at the top. A base slab 5 of a specified thickness is poured onto the formwork at the bottom of the entire reinforcement skeleton and cured to form the entire prefabricated composite slab. The base slab 5 is made of one or more of the following materials: high-strength concrete, high-performance concrete, fiber-reinforced concrete, ultra-high-performance concrete, polymer concrete, and ordinary concrete.

[0039] The upper main reinforcement bar 1 with hooks is located in the post-cast concrete, while the lower main reinforcement bar 2 with hooks and the distribution reinforcement bar 3 with hooks are located in the bottom slab 5. The post-cast concrete is embedded in the inner cavity of the W-shaped slats 4. In this way, the shape, structure and interlocking connection of each part can more fully secure more post-cast concrete under the W-shaped slats 4. On the one hand, it effectively prevents the bond slip between the post-cast concrete and the composite slab interface. On the other hand, it makes the shear resistance and uplift resistance between the composite slab and the post-cast concrete higher than that of conventional steel truss composite slab structures, and the overall integrity is better.

[0040] It is understood that the above are merely embodiments of the utility model and are not intended to limit the present utility model. Those skilled in the art can make improvements, changes and modifications to the present utility model without departing from the spirit and principle of the present utility model, all of which shall be within the protection scope of the present utility model patent.

Claims

1. A prefabricated composite slab, characterized in that: Includes a hooked upper main bar (1), a hooked lower main bar (2), a hooked distribution bar (3), a W-shaped strip (4), and a base plate (5). Multiple W-shaped strips (4) are arranged longitudinally and horizontally. Two hooked lower main bars (2) are inserted longitudinally and horizontally into the two lower bends of the W-shaped strip (4), and a hooked upper main bar (1) is inserted longitudinally and horizontally into the upper bend of the W-shaped strip (4), forming a longitudinal horizontal reinforcement skeleton. Multiple longitudinal horizontal reinforcement skeletons form a horizontal array. The hooked distribution bar (3) passes horizontally along the upper edge of the hooked lower main bar (2), connecting multiple longitudinal reinforcement skeletons horizontally to form the reinforcement skeleton of the entire prefabricated composite slab.

2. The composite plate according to claim 1, characterized in that: The upper main reinforcement (1) with hooks, the lower main reinforcement (2) with hooks, and the distribution reinforcement (3) with hooks are reserved with a specified lap length at both ends. The upper part of the W-shaped strip (4) is left open with a specified height. The bottom plate (5) of a specified thickness is poured on the lower part of the entire reinforcement skeleton on the template. After curing and hardening, the entire prefabricated composite slab is formed.

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