Prefabricated energy-saving floor of building

Abstract

The utility model discloses an assembled building energy -conserving floor slab, including first cement support floor slab, the first cement support floor slab upper end is provided with interlayer foamed cement board, the interlayer foamed cement board upper end is provided with second cement support floor slab, first cement support floor slab, interlayer foamed cement board, second cement support floor slab inside are provided with reinforced frame structure, and the reinforced frame structure includes first transverse reinforcement, first longitudinal reinforcement, support frame reinforcement, second transverse reinforcement, second longitudinal reinforcement, first cement support floor slab inside is provided with a plurality of first transverse reinforcement. The utility model discloses setting up interlayer foamed cement board in traditional floor slab, can improve the heat preservation effect of floor slab like this, can effectively prevent the room that installs the floor heating, and the heat is passed through the floor and is delivered to the downstairs, and like this can play the role of energy -conserving heat preservation.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated floor slab technology, specifically to an energy-saving prefabricated building floor slab. Background Technology

[0002] With the acceleration of urbanization and the advancement of building industrialization in my country, the drawbacks of traditional construction methods are becoming increasingly apparent. Traditional cast-in-place floor slabs, as core structural components, rely heavily on on-site formwork, rebar tying, concrete pouring, and curing, resulting in long construction cycles, excessive on-site wet work, and significant resource waste. While existing prefabricated floor slabs have achieved industrialized production, they generally suffer from insufficient thermal insulation, poor sound insulation, and inadequate energy efficiency, failing to meet the green and energy-saving requirements of modern buildings. Therefore, an improved prefabricated energy-saving floor slab is needed to address these issues. Utility Model Content

[0003] The purpose of this utility model is to provide an energy-saving prefabricated building floor slab to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated building energy-saving floor slab, comprising a first cement support floor slab, an inner foamed cement board disposed at the upper end of the first cement support floor slab, a second cement support floor slab disposed at the upper end of the inner foamed cement board, and a steel frame structure disposed inside the first cement support floor slab, the inner foamed cement board, and the second cement support floor slab, the steel frame structure comprising first transverse steel bars, first longitudinal steel bars, supporting frame steel bars, second transverse steel bars, and second longitudinal steel bars, a plurality of first transverse steel bars disposed inside the first cement support floor slab, a plurality of first longitudinal steel bars disposed between the first transverse steel bars, the first transverse steel bars and the first longitudinal steel bars being arranged perpendicularly to each other, supporting frame steel bars being disposed between the first transverse steel bars and the first longitudinal steel bars, a second transverse steel bar disposed at the upper end of the supporting frame steel bars, the second transverse steel bars being intersected by second longitudinal steel bars, and the second transverse steel bars and the second longitudinal steel bars being disposed inside the second cement support floor slab.

[0005] Preferably, the first transverse steel bar and the first longitudinal steel bar are fixedly welded together; welding, as a steel bar fixing method in this structure, can ensure the overall structural strength of the first transverse steel bar and the first longitudinal steel bar in the first cement-supported floor slab.

[0006] Preferably, a binding wire is provided between the second transverse reinforcement and the second longitudinal reinforcement. The second transverse reinforcement passes through the lower end of the supporting reinforcement, while the second longitudinal reinforcement is set at the upper end of the supporting reinforcement. The second transverse reinforcement and the second longitudinal reinforcement are arranged in a cross shape and fixed by binding with wire. It should be noted that although the first transverse reinforcement and the first longitudinal reinforcement are fixed by cross welding in the figure, and the second transverse reinforcement and the second longitudinal reinforcement are fixed by cross binding, this does not mean that this is always the case. This application document only discloses two different connection methods at the same time. The first transverse reinforcement and the first longitudinal reinforcement can also be fixed by binding with wire as needed.

[0007] Preferably, hooks are provided on both sides of the lower end of the supporting frame steel bars. The hooks are fixedly connected to the first transverse steel bars by welding. Welding can conveniently and quickly fix the first transverse steel bars to the supporting frame steel bars.

[0008] Preferably, the thickness of the sandwich foamed cement board is 20mm. The sandwich foamed cement board uses cement, fly ash, silica sand, etc. as base materials, and adds foaming agents (such as aluminum powder, hydrogen peroxide) or physical foaming agents (such as protein foaming agents). It forms a uniform bubble structure through chemical foaming (aluminum powder reacts with cement hydration products to release hydrogen) or physical foaming (high pressure injection of gas), and is made into a lightweight board after curing.

[0009] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model introduces sandwich foamed cement board into the floor slab structure, and utilizes its good thermal insulation performance to solve the shortcomings of traditional floor slabs and existing prefabricated floor slabs in terms of energy saving.

[0010] 2. This utility model features a reinforced steel frame structure that effectively ensures the overall structural strength, while also improving the convenience of construction and guaranteeing the overall structural strength of the floor slab. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of an energy-saving prefabricated building floor slab according to the present invention; Figure 2 This is an overall structural view of the steel frame structure in an energy-saving prefabricated building floor slab according to the present invention. Figure 3 This is an installation view of the foamed cement board sandwiched in the prefabricated building energy-saving floor slab of this utility model. Figure 4 This utility model relates to an energy-saving prefabricated building floor slab. Figure 2 A magnified view of point A in the middle.

[0012] In the diagram: 1. First cement support slab; 2. Sandwich foamed cement board; 3. Second cement support slab; 4. First transverse reinforcement; 5. First longitudinal reinforcement; 6. Support frame reinforcement; 7. Second transverse reinforcement; 8. Second longitudinal reinforcement; 9. Binding wire; 10. Hook. Detailed Implementation

[0013] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-4 This utility model provides a technical solution: a prefabricated building energy-saving floor slab, including a first cement support floor slab 1, a sandwich foamed cement board 2 provided on the upper end of the first cement support floor slab 1, a second cement support floor slab 3 provided on the upper end of the sandwich foamed cement board 2, a steel frame structure provided inside the first cement support floor slab 1, the sandwich foamed cement board 2, and the second cement support floor slab 3, the steel frame structure including a first transverse steel bar 4, a first longitudinal steel bar 5, a supporting frame steel bar 6, a second transverse steel bar 7, and a second longitudinal steel bar 8, a plurality of first transverse steel bars 4 provided inside the first cement support floor slab 1, a plurality of first longitudinal steel bars 5 provided between the first transverse steel bars 4, the first transverse steel bars 4 and the first longitudinal steel bars 5 are arranged perpendicularly to each other, a supporting frame steel bar 6 is provided between the first transverse steel bars 4 and the first longitudinal steel bars 5, a second transverse steel bar 7 is provided on the upper end of the supporting frame steel bar 6, the second transverse steel bars 7 are intersected by the second longitudinal steel bars 8, the second transverse steel bars 7 and the second longitudinal steel bars 8 are provided inside the second cement support floor slab 3.

[0015] The first transverse steel bar 4 and the first longitudinal steel bar 5 are fixedly welded together; welding is a steel bar fixing method in this structure; it can ensure the overall structural strength of the first transverse steel bar 4 and the first longitudinal steel bar 5 in the first cement-supported floor slab 1. A binding wire 9 is provided between the second transverse reinforcement 7 and the second longitudinal reinforcement 8. The second transverse reinforcement 7 passes through the lower end of the supporting reinforcement, while the second longitudinal reinforcement 8 is set at the upper end of the supporting reinforcement. The second transverse reinforcement 7 and the second longitudinal reinforcement 8 are arranged in a cross shape and fixed by binding with wire. It should be noted that although the first transverse reinforcement 4 and the first longitudinal reinforcement 5 are fixed by cross welding in the figure, and the second transverse reinforcement 7 and the second longitudinal reinforcement 8 are fixed by cross binding, this does not mean that this is always the case. This application document only discloses two different connection methods at the same time. The first transverse reinforcement 4 and the first longitudinal reinforcement 5 can also be fixed by binding with wire as needed. The second cement-supported floor slab 3 in this application is a subsequent secondary pour, meaning that the first cement-supported floor slab 1 and the sandwiched foamed cement board 2 are prefabricated and poured in the factory; forming a structure as follows: Figure 3 As shown in the diagram, factory workers then use binding wire 9 to fix and connect the second transverse reinforcing bar 7, the second longitudinal reinforcing bar 8, and the supporting frame reinforcing bar 6. At this time, the upper ends of the supporting frame reinforcing bar 6, the second transverse reinforcing bar 7, and the second longitudinal reinforcing bar 8 are exposed. After the first cement support floor slab 1 is laid, a second pour is carried out to form a reliable reinforced concrete composite structure. In this way, the post-poured concrete in the second pour can form all the floor slabs as a whole. This forms an integral structure with double-sided cement floor slabs sandwiched with foamed cement board 2, which can effectively prevent heat from being transferred from rooms with underfloor heating to the floor below through the floor slab, thus playing a role in energy saving and heat preservation. Hooks 10 are provided on both sides of the lower end of the supporting frame steel bar 6. The hooks 10 are fixedly connected to the first transverse steel bar 4 by welding. Welding can conveniently and quickly fix the first transverse steel bar 4 to the supporting frame steel bar 6. The thickness of the sandwich foamed cement board 2 is 20mm. The sandwich foamed cement board 2 uses cement, fly ash, silica sand, etc. as base materials, and adds foaming agents such as aluminum powder, hydrogen peroxide or physical foaming agents such as protein foaming agents. Through chemical foaming, the aluminum powder reacts with the cement hydration products to release hydrogen gas, or through physical foaming, high-pressure gas injection forms a uniform bubble structure. After curing, it is made into a lightweight board. The specific production steps are as follows: tie the entire steel frame structure according to the design requirements of this application, then set up the formwork and pour the first cement support floor slab 1; then pour the foamed cement mixture cement + foaming agent + water, level it with a scraper, and let it stand to foam; after the sandwich foamed cement board 2 is cured, it usually takes 24-48 hours. The compressive strength of the sandwich foamed cement board 2 is usually between 2.5-5.0MPa, which can meet the live load requirements of 200 kg / m² (approximately 0.2MPa) for ordinary residential floor slabs; at the same time, its physical and chemical properties are similar to those of ordinary concrete, and it bonds firmly to concrete with the same expansion coefficient, which can effectively avoid problems such as delamination and hollowing.

[0016] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 process, method, article, or apparatus.

[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated building energy-saving floor slab, comprising a first cement-supported floor slab (1), characterized in that: A sandwich foamed cement board (2) is provided on the upper end of the first cement support floor slab (1), and a second cement support floor slab (3) is provided on the upper end of the sandwich foamed cement board (2). A steel frame structure is provided inside the first cement support floor slab (1), the sandwich foamed cement board (2), and the second cement support floor slab (3). The steel frame structure includes a first transverse steel bar (4), a first longitudinal steel bar (5), a support frame steel bar (6), a second transverse steel bar (7), and a second longitudinal steel bar (8). A plurality of first transverse steel bars (4) are provided inside the first cement support floor slab (1). A plurality of first longitudinal steel bars (5) are provided between the first transverse steel bars (4). The first transverse steel bars (4) and the first longitudinal steel bars (5) are arranged perpendicularly to each other. A support frame steel bar (6) is provided between the first transverse steel bars (4) and the first longitudinal steel bars (5). A second transverse steel bar (7) is provided on the upper end of the support frame steel bar (6). A second longitudinal steel bar (8) is arranged at the intersection of the second transverse steel bars (7). The second transverse steel bars (7) and the second longitudinal steel bars (8) are provided inside the second cement support floor slab (3).

2. The prefabricated building energy-saving floor slab according to claim 1, characterized in that: The first transverse steel bar (4) and the first longitudinal steel bar (5) are welded and fixed together.

3. The prefabricated building energy-saving floor slab according to claim 1, characterized in that: A binding wire (9) is provided between the second transverse reinforcing bar (7) and the second longitudinal reinforcing bar (8).

4. The prefabricated building energy-saving floor slab according to claim 1, characterized in that: The lower ends of the supporting frame steel bars (6) are provided with hooks (10), and the hooks (10) are fixedly connected to the first transverse steel bars (4) by welding.

5. The prefabricated building energy-saving floor slab according to claim 1, characterized in that: The thickness of the sandwich foamed cement board (2) is 20mm.

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