Prefabricated prestressed hollow laminated slab for building

Abstract

The utility model discloses an assembly type building prestress hollow laminated slab, which comprises an upper laminated slab and a lower laminated slab, two groups of hollow grooves are arranged in the middle of the lower laminated slab, a group of truss ribs are arranged between the two groups of hollow grooves, the lower laminated slab is provided with a group of transverse ribs and a group of longitudinal ribs, and the transverse ribs and the longitudinal ribs are arranged in parallel. A circle of groove edge is arranged on the periphery of the upper laminated plate, and a circle of splicing edge matched with the groove edge is arranged on the outer edge of the upper laminated plate. The upper laminated slab and the lower laminated slab which are spliced are adopted, heat preservation or sound insulation materials can be filled in the hollow grooves according to needs, the hollow grooves can be arranged in a hollow mode, the weight of the prefabricated slab is reduced, and meanwhile the application range is wide.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated components, and in particular to a prestressed hollow composite slab for prefabricated buildings. Background Technology

[0002] Composite floor slabs are assembled monolithic floor slabs made by stacking precast slabs and cast-in-place reinforced concrete layers. Composite floor slabs offer good overall integrity, with smooth upper and lower surfaces, facilitating finishing processes. They are suitable for high-rise buildings and large-span buildings requiring high overall rigidity. However, existing precast composite slabs have simple structures, open central holes, and generally mediocre performance. Utility Model Content

[0003] Purpose of the utility model: The technical problem to be solved by this utility model is to provide a prestressed hollow composite slab for prefabricated buildings, which addresses the shortcomings of the existing technology.

[0004] To solve the above-mentioned technical problems, this utility model discloses a prestressed hollow composite slab for prefabricated buildings, including an upper composite slab and a lower composite slab. The lower composite slab has two sets of hollow grooves in the middle, and a set of truss bars is provided between the two sets of hollow grooves. The lower composite slab has a set of transverse bars and a set of longitudinal bars. The outer periphery of the upper composite slab has a grooved edge, and the outer edge of the upper composite slab has a splicing edge that matches the grooved edge.

[0005] In this utility model, the lower composite plate is provided with lifting rings at its four corners.

[0006] In this utility model, the truss reinforcement is provided in three parts, which are arranged in parallel and at equal intervals.

[0007] In this invention, each set of hollow grooves consists of two sections, symmetrically arranged on both sides of the truss reinforcement.

[0008] In this invention, the hollow groove is filled with a filler.

[0009] Beneficial effects: This utility model adopts spliced ​​upper and lower composite panels, and can fill the hollow groove with heat insulation or sound insulation materials as needed, or it can be hollowed out to reduce the weight of the precast panel. It also has a wide range of applications. Attached Figure Description

[0010] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, and the advantages of the present invention in the above and / or other aspects will become clearer.

[0011] Figure 1 This is a schematic diagram of the overall structure.

[0012] The attached diagram is labeled as follows: 1. Upper composite slab, 2. Lower composite slab, 3. Hollow groove, 4. Truss reinforcement, 5. Transverse reinforcement, 6. Longitudinal reinforcement, 7. Groove edge, 8. Splice edge, 9. Lifting ring. Detailed Implementation

[0013] Example:

[0014] like Figure 1 This embodiment provides a prestressed hollow composite slab for prefabricated buildings, including an upper composite slab 1 and a lower composite slab 2. The lower composite slab has two sets of hollow grooves 3 in its middle, and a set of truss reinforcement 4 is provided between the two sets of hollow grooves. The lower composite slab has a set of transverse reinforcement 5 and a set of longitudinal reinforcement 6. The upper composite slab has a grooved edge 7 around its perimeter, and a splicing edge 8 that matches the grooved edge on its outer edge. Lifting rings 9 are provided at the four corners of the lower composite slab. Three truss reinforcements are provided, arranged in parallel and at equal intervals. Two hollow grooves are provided in each set, symmetrically arranged on both sides of the truss reinforcement. Filler is provided inside the hollow grooves.

[0015] In this embodiment, during the casting process, a set of transverse reinforcement 5 and a set of longitudinal reinforcement 6 are first laid in the mold, and then the lower composite slab 2 is cast. Truss reinforcement 4 and lifting ring 9 are laid. If necessary, insulation or sound insulation material can be filled in the hollow groove, or it can be hollowed out to reduce the weight of the precast slab. Then the upper composite slab 1 is cast.

[0016] This utility model provides a concept and method for prestressed hollow composite slabs used in prefabricated buildings. Many methods and approaches exist for implementing this technical solution; the above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.

Claims

1. A prestressed hollow composite slab for assembled buildings, characterized in that: The invention comprises an upper composite plate (1) and a lower composite plate (2), wherein two groups of hollow grooves (3) are provided in the middle of the lower composite plate, a group of truss ribs (4) are provided between the two groups of hollow grooves, the lower composite plate is provided with a group of transverse ribs (5) and a group of longitudinal ribs (6), the outer periphery of the upper composite plate is provided with a circle of groove edges (7), and the outer edge of the upper composite plate is provided with a circle of splicing edges (8) adapted to the groove edges.

2. A prestressed hollow composite slab for assembled buildings according to claim 1, characterized in that: The four corners of the lower composite plate are provided with lifting rings (9).

3. The prestressed hollow composite slab for assembled buildings according to claim 1, characterized in that: The truss bars are provided with three, which are arranged in parallel with equal intervals.

4. The prestressed hollow composite slab for assembled buildings according to claim 1, characterized in that: Each group of hollow grooves is provided with two, which are symmetrically arranged on both sides of the truss reinforcement.

5. The prestressed hollow composite slab for assembled buildings according to claim 1, characterized in that: A filling piece is arranged in the hollow groove.

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