CN106522438A - Assembled light floor system - Google Patents

Abstract

The invention provides a prefabricated lightweight floor system, which includes at least two prefabricated lightweight floors and steel beams connected under two adjacent prefabricated lightweight floors; the prefabricated lightweight floor includes a concrete matrix, concrete A layer of lightweight filling material and steel bars are embedded in the matrix, and the two opposite sides of the concrete matrix are covered with edge banding plates. A gap is provided at each of the two adjacent prefabricated lightweight floor slabs, and the adjacent two gaps of the two adjacent prefabricated lightweight slabs are connected to form a filler tank, and the filler groove is filled with concrete filler blocks connecting the two adjacent prefabricated lightweight floor slabs. The invention overcomes the problems of the traditional floor system such as heavy weight, large cast-in-place workload, slow construction speed and poor construction quality, and reduces the dead weight of the floor slab by adopting light materials and setting post-casting, reduces the cast-in-place workload, and ensures the construction quality , improve the construction speed, and better apply to the green prefabricated building structure system.

Description

A prefabricated lightweight floor system

technical field

The invention relates to the field of building structures, in particular to an assembled lightweight floor system.

Background technique

The prefabricated steel structure system refers to the building produced by manufacturing housing units or components according to uniform and standard building part specifications, and then transporting them to the construction site for assembly in place. It is characterized by light building weight, energy saving and environmental protection, fast construction speed, and high degree of industrialization. It can solve many problems such as low level of construction industrialization, low labor productivity in house construction, and low quality of traditional house products, and adapts to the development of the construction industry.

The prefabricated floor system is one of the important components in the prefabricated steel structure system, which directly affects the construction speed and degree of assembly of the structure. At present, the main forms of floor slabs include cast-in-place floor slabs and composite floor slabs. Although the overall performance of cast-in-place floor slabs is relatively good, the workload of cast-in-place slabs is heavy, which not only affects the construction progress, but also does not conform to the existing design of prefabricated green buildings. The concept is not applicable to prefabricated buildings. Laminated slabs can reduce the workload of on-site pouring and speed up the construction progress, but the connection strength between the prefabricated part and the cast-in-place part of the laminated slab is weak. Cracks occur during the process, which affects the performance of the floor.

In recent years, countries have vigorously promoted the development of prefabricated green buildings. R&D personnel have made a lot of innovations on beams, columns and joints, and introduced a series of parts and components suitable for prefabricated buildings. However, the innovation of the floor system is not enough. As expected, there is no good solution to the application of floor systems in prefabricated structures, which restricts the development of prefabricated buildings. Therefore, it is imminent to develop new floor systems suitable for prefabricated structures.

Contents of the invention

The purpose of the present invention is to provide a prefabricated lightweight floor system, which overcomes the problems of the traditional floor system such as heavy weight, large cast-in-place workload, slow construction speed, and poor construction quality. Reduce the self-weight of the floor, reduce the workload of cast-in-place, ensure the construction quality, increase the construction speed, and better apply to the green prefabricated building structure system.

In order to achieve the above object, the present invention proposes a prefabricated lightweight floor system, which includes at least two prefabricated lightweight floors arranged side by side, and steel beams connected under the two adjacent prefabricated lightweight floors The prefabricated lightweight floor slab includes a plate-shaped concrete matrix, the concrete matrix has a top surface, a bottom surface and four sides, and the concrete matrix is embedded with a layer of lightweight filling material and steel bars, and the concrete matrix The two opposite sides are covered with edge banding boards, the prefabricated lightweight floor is fixedly connected to the steel beam through the side banding boards, and the sides of the edge banding boards and the top surface are covered with There is a gap at the joint, and the adjacent two gaps of the two adjacent prefabricated lightweight floors are connected to form a filling groove, and the filling groove is filled with a material connecting the adjacent two prefabricated lightweight floors. Concrete fill blocks.

In the prefabricated lightweight floor system as described above, at least one pre-embedded connector connected to the edge banding board is embedded in the concrete matrix.

The above-mentioned prefabricated lightweight floor system, wherein there are multiple embedded connectors, and the plurality of embedded connectors are arranged at intervals along the edge banding.

The prefabricated lightweight floor system as described above, wherein, the edge sealing plate is in the shape of a flat plate, and the edge sealing plate is a steel plate.

The prefabricated lightweight floor system above, wherein, the notch is a strip-shaped notch arranged along the edge banding plate, and the section of the notch is rectangular, square, triangular or inverted trapezoidal.

The above-mentioned prefabricated lightweight floor system, wherein, the steel bar includes an upper steel bar located above the lightweight filling material and a lower steel bar located below the lightweight filling material, and the upper steel bar is formed from the concrete foundation The body extends outside the concrete matrix and passes through the filler groove.

The prefabricated lightweight floor system above, wherein the lightweight filling material layer is composed of a plurality of lightweight concrete shells arranged side by side and at intervals, and the lightweight concrete shells are hollow cylindrical structures.

The prefabricated lightweight floor system above, wherein the lightweight concrete shell is filled with at least one of a foamed ceramic material layer, a PVC hollow board, a polyester fiber material layer and a foamed clay material layer.

The prefabricated lightweight floor system as described above, wherein, in the horizontal direction, the layer of lightweight filling material crosses the reinforcing bars.

The prefabricated lightweight floor system as described above, wherein, each of the prefabricated lightweight floors is arranged at intervals, and a gap between two adjacent prefabricated lightweight floors is formed below the filler tank and connected to the filler. Grooved connected filler spaces for filling concrete, said filler spaces above said steel beams.

The features and advantages of the prefabricated lightweight floor system of the present invention are:

1. The prefabricated lightweight floor system of the present invention solves the self-heavy problem of traditional floor slabs by setting a layer of lightweight filling materials. Two prefabricated lightweight slabs are connected, by setting a filler tank between two adjacent prefabricated lightweight slabs, it is convenient to connect adjacent prefabricated lightweight slabs by post-pouring concrete into the filler trough, reducing the prefabricated lightweight The self-weight of the high-quality floor slab, the prefabricated light-weight floor slab can be prefabricated in the factory, reducing the workload of cast-in-place, ensuring the construction quality, increasing the construction speed, and better applicable to the green prefabricated building structure system;

2. The prefabricated lightweight floor system of the present invention has simple structure, high strength, convenient and easy assembly, and helps to improve construction efficiency.

Description of drawings

The following drawings are only intended to illustrate and explain the present invention schematically, and do not limit the scope of the present invention. in:

Fig. 1 is a front view sectional structural schematic diagram of an embodiment of the prefabricated lightweight floor system of the present invention;

Fig. 2 is a front view sectional structural schematic diagram of an embodiment of the prefabricated lightweight floor slab in the present invention;

Fig. 3 is a top view sectional structural schematic diagram of the prefabricated lightweight floor slab of Fig. 2;

Fig. 4 is the front view sectional structure schematic diagram of an embodiment of lightweight filling material layer in the present invention;

Fig. 5 is a front view sectional structural schematic diagram of another embodiment of the lightweight filling material layer in the present invention.

Explanation of main component labels:

1 Embedded connector

2 concrete base

3 layers of lightweight fill material

31 Lightweight concrete shell 32 Layer of foamed ceramic material

33 PVC hollow board 34 Polyester fiber material layer

35 layers of foamed clay material

4 lower reinforcement

5 upper reinforcement

6 edge banding

7 notches

8 concrete filler blocks

9 steel beams

10 packing space

detailed description

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings. Among them, the use of adjective or adverb modifiers "horizontal" and "vertical", "upper" and "lower" is only to facilitate relative reference between groups of terms, and does not describe any reference to the modified terms. specific orientation constraints.

As shown in Figure 1 and Figure 2, the present invention provides a prefabricated lightweight floor system, which includes at least two prefabricated lightweight floors arranged side by side, and a steel beam 9;

Each prefabricated lightweight floor slab includes a flat concrete matrix 2, the concrete matrix 2 has a top surface, a bottom surface and four sides, and the concrete matrix 2 is embedded with (or embedded with) a lightweight filling material layer 3 (or called Lightweight filling material) and steel bars, solve the problem of the traditional floor slab self-heavy by setting the lightweight filling material layer 3, the two opposite sides of the concrete matrix 2 are covered with edge banding boards 6, and the prefabricated lightweight floor slabs pass through their respective edge banding The plate 6 is fixedly connected with the steel beam 9, and there is a notch 7 at the connection between the two sides of the concrete matrix 2 covered with the edge banding plate 6 and the top surface, or in other words, the side and the top surface covered with the edge banding plate 6 pass through The downwardly recessed transition surface is connected, and a gap is formed above the transition surface, and the adjacent gaps 7 of the two adjacent prefabricated lightweight floors are connected to form a filling groove, and the filling groove is filled with The concrete filling block 8 is formed by pouring concrete into the filling tank. By setting the filling tank, it is convenient to connect the adjacent prefabricated light floor slabs by pouring concrete into the filling tank, reducing the size of the prefabricated floor. The self-weight of the light floor slab before pouring the concrete filling block 8. The prefabricated lightweight floor system of the present invention is formed by connecting prefabricated lightweight floors in the factory, which reduces the workload of cast-in-place, ensures the construction quality, improves the construction speed, and is better applicable to the green prefabricated building structure system among.

Wherein, the structures on opposite sides of the prefabricated lightweight floor are symmetrical, and only the structure on one side of the prefabricated lightweight floor is shown in Fig. structure.

Further, the edge sealing plate 6 is in the shape of a flat plate, and the edge sealing plate 6 is a steel plate, so as to be connected with other components by welding, and also to improve the structural strength of the floor slab. The extension direction of the edge banding plate 6 is the same as that of the steel beam 9 , and the two sides of the steel beam 9 are respectively welded with two adjacent edge banding plates 6 .

Further, the notch 7 is a strip-shaped notch arranged along the edge sealing plate 6, and the section of the notch 7 is rectangular, square, triangular or inverted trapezoidal. For example, when the left side and the right side of the concrete base 2 are covered with the edge banding plate 6, the notch 7 extends along the left side or the right side of the concrete base 2, and extends from the front side of the concrete base 2 to the concrete base 2 rear side.

As shown in Figure 2, in a preferred embodiment, at least one embedded connector 1 connected to the edge banding plate 6 is also embedded in the concrete matrix 2. By setting the embedded connector 1, it is convenient to place the edge banding 6 is fixedly connected with the concrete matrix 2 to improve the connection strength between the edge banding plate 6 and the concrete matrix 2 .

Further, there are multiple embedded connectors 1 , and the plurality of embedded connectors 1 are arranged at intervals along the edge banding 6 to further improve the connection strength between the edge banding 6 and the concrete matrix 2 .

Furthermore, the pre-embedded connector 1 is a connecting steel nail, and the connecting steel nail is welded to the edge banding plate 6 . However, the present invention is not limited thereto, and the pre-embedded connector 1 may also be steel columns, steel rods and other components.

As shown in Fig. 2 and Fig. 3, in a specific embodiment, the reinforcing bars include upper reinforcing bars 5 (or called top reinforcing bars) located above the lightweight filling material layer 3 and lower reinforcing bars 4 located below the lightweight filling material layer 3 (or called the bottom steel bar), the upper steel bar 5 extends from the concrete matrix 2 to the outside of the concrete matrix 2, and passes through the filling groove or gap 7, and the upper steel bars 5 of two adjacent prefabricated lightweight floors can be placed in the filling groove lap. The part of the upper steel bar 5 that is located in the concrete matrix 2 is used as a stressed steel bar, and the part of the upper steel bar 5 protruding out of the concrete matrix 2 is used as a lapped steel bar, and the lapped steel bar can be embedded in the concrete filling block 8 to improve the adjacent Connection strength between prefabricated lightweight slabs.

Further, in the thickness (or height) direction of the concrete matrix 2, the lightweight filling material layer 3 is located in the middle of the concrete matrix 2, and the lightweight filling material layer 3 is composed of a plurality of lightweight filling material blocks arranged side by side and at intervals.

Further, there are multiple lower steel bars 4, and multiple lower steel bars 4 are arranged side by side and at intervals in the concrete matrix 2, and there are multiple upper steel bars 5, and multiple upper steel bars 5 are arranged side by side and at intervals along the extending direction of the edge sealing plate 6.

As shown in Figure 4, in another specific embodiment, the lightweight filling material layer 3 is composed of a plurality of lightweight concrete shells 31 arranged side by side and at intervals, the lightweight concrete shells 31 are hollow cylindrical structures, and the lightweight concrete shells The end face of the concrete shell 31 is, for example, elongated, and the section of the lightweight concrete shell 31 is, for example, trapezoidal. The surface is parallel to the bottom surface of the concrete matrix 2 . The prefabricated lightweight floor system of this embodiment is suitable for occasions with less stress.

Further, the lightweight concrete shell 31 is filled with a filler, and the filler is at least one of a foamed ceramic material layer 32 , a PVC hollow plate 33 , a polyester fiber material layer 34 and a foamed clay material layer 35 .

As shown in Figure 5, preferably, the filler is a layer of foamed ceramic material 32, a PVC hollow plate 33, a layer of polyester fiber material 34 and a layer of foamed clay material 35 stacked sequentially from top to bottom, and the filler fills the entire The lightweight concrete shell 31, wherein the foamed ceramic material layer 32 and the foamed clay material layer 35 are respectively in contact with the upper wall and the lower wall of the lightweight concrete shell 31, and the foamed ceramic material layer 32 and the foamed clay material The sum of the weights of the layers 35 is not less than 25% of the total weight of the filler.

But the present invention is not limited thereto. According to the thickness of the floor, two or three of the foamed ceramic material layer 32, the PVC hollow plate 33, the polyester fiber material layer 34 and the foamed clay material layer 35 can also be selected for filling. You can also choose one of them individually.

Further, in the horizontal direction, the lightweight filling material layer 3 (or lightweight concrete shell 31 ) is intersected with the steel bars to improve the structural strength of the floor slab.

The concrete used in the present invention is grouting material, ordinary concrete, concrete with specific functions such as antifreeze and waterproof, or other materials with certain bearing capacity.

In addition, the steel girder 9 used in the present invention is shaped steel or steel tube concrete.

In the embodiment shown in Figure 1, each prefabricated lightweight floor slab is arranged at intervals, and a filler space 10 for filling concrete is formed between two adjacent prefabricated lightweight floor slabs and is located below the filler tank and communicated with the filler tank. , the filling space 10 is filled with concrete connected with the concrete filling block 8 as a whole, and the filling space 10 is located above the steel beam 9 . However, the present invention is not limited thereto, and two adjacent prefabricated light-weight floor slabs can also be arranged to be adjacent to each other, that is, two adjacent edge banding plates 6 are attached to each other.

The assembly method of the prefabricated lightweight floor system of the present invention is as follows: at least two prefabricated lightweight floors are arranged side by side, two adjacent prefabricated lightweight floors are placed on steel beams 9, and the assembled The lightweight floor slab is welded on the steel beam 9, and the upper steel bar 5 of the assembled lightweight floor slab is lapped and connected with the upper steel bar 5 of another adjacent fabricated lightweight floor slab, and the post-cast concrete is poured on the two assembled lightweight The frame position between the light floor slabs is poured integrally in the filling groove between two adjacent fabricated lightweight floor slabs to form concrete filling blocks 8 .

Compared with traditional floor slabs, the prefabricated lightweight floor slab system of the present invention can well solve the problems of heavy floor slabs, large cast-in-place workload, slow construction speed, and poor construction quality. The cast-in-place workload meets the needs of promoting prefabricated buildings, and has great practical significance and engineering application value.

The above descriptions are only illustrative specific implementations of the present invention, and are not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principle of the present invention shall fall within the protection scope of the present invention. And it should be noted that each component of the present invention is not limited to the above-mentioned overall application, and each technical feature described in the description of the present invention can be selected to be used alone or in combination according to actual needs. Therefore, the present invention Other combinations and specific applications related to the invention of this case are naturally covered.

Claims (10)

1. A prefabricated lightweight floor system, characterized in that, the prefabricated lightweight floor system comprises at least two prefabricated lightweight floors arranged side by side, and two adjacent prefabricated lightweight floors connected to each other steel beams below the slab; The prefabricated lightweight floor slab includes a plate-shaped concrete base, the concrete base has a top surface, a bottom surface and four sides, and a lightweight filling material layer and steel bars are embedded in the concrete base, and the two sides of the concrete base The two opposite sides are covered with an edge band, the prefabricated lightweight floor is fixedly connected with the steel beam through the edge band, and the connection between the side with the edge band and the top surface is covered There is a gap at the location, and the two adjacent gaps of the two adjacent prefabricated lightweight floors are connected to form a filler tank, and the filler grooves are filled with concrete that connects the two adjacent prefabricated lightweight floors. Fill blocks. 2 . The prefabricated lightweight floor system according to claim 1 , wherein at least one pre-embedded connector connected to the edge banding board is embedded in the concrete matrix. 3 . 3. The prefabricated lightweight floor system according to claim 2, characterized in that there are multiple embedded connectors, and the plurality of embedded connectors are arranged at intervals along the edge banding board. 4. The prefabricated lightweight floor system according to claim 1, characterized in that, the edge banding plate is in the shape of a flat plate, and the edge banding plate is a steel plate. 5. The prefabricated lightweight floor system according to claim 1, wherein the notch is a strip-shaped notch arranged along the edge banding plate, and the section of the notch is rectangular, square, triangular or inverted trapezoidal . 6. The prefabricated lightweight floor system according to any one of claims 1 to 5, wherein the steel bars include upper steel bars located above the lightweight filling material and upper steel bars located below the lightweight filling material The lower steel bar, the upper steel bar extends from the inside of the concrete matrix to the outside of the concrete matrix, and passes through the filling groove. 7. The prefabricated lightweight floor system according to any one of claims 1 to 5, wherein the lightweight filling material layer is composed of a plurality of lightweight concrete shells arranged side by side and at intervals, and the lightweight The concrete shell is a hollow cylindrical structure. 8. The prefabricated lightweight floor system according to claim 7, wherein the lightweight concrete shell is filled with a foamed ceramic material layer, a PVC hollow plate, a polyester fiber material layer and a foamed clay material layer at least one of the 9. The prefabricated lightweight floor system according to any one of claims 1 to 5, characterized in that, in the horizontal direction, the layer of lightweight filling material crosses the reinforcing bars. 10. The prefabricated lightweight floor system according to any one of claims 1 to 5, characterized in that, each of the prefabricated lightweight floors is arranged at intervals, and the space between two adjacent prefabricated lightweight floors A filling space for filling concrete is formed below the filling tank and communicated with the filling tank, and the filling space is located above the steel beam.