CN206279673U - Prefabricated assembled light floor - Google Patents

Abstract

The utility model provides a prefabricated light-weight floor slab, which includes a plate-shaped concrete matrix, a light-weight filling material layer and steel bars are embedded in the concrete matrix, and the concrete matrix has a top surface, a bottom surface and four sides. The two opposite sides of the concrete matrix are covered with edge banding boards. The side banding boards are in the shape of a flat plate. There are multiple embedded parts adjacent to the edge banding boards in the concrete matrix. Each embedded part is provided with a connected top surface and a bottom surface. through holes. The prefabricated light-weight floor slab provided by the utility model overcomes the problems of the traditional floor slab system such as heavy weight, large cast-in-place workload, slow construction speed, and poor construction quality. , 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.

Description

A prefabricated lightweight floor slab

technical field

The utility model relates to the field of building structures, in particular to a prefabricated assembled lightweight floor slab.

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 assembly floor system is one of the important components in the assembly steel structure system, which directly affects the construction speed and assembly degree 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, with the development of prefabricated green buildings, R&D personnel have made a lot of innovations on components such as beams, columns and joints, and introduced a series of parts and components suitable for prefabricated buildings, but the innovation of the floor system is endless 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.

Utility model content

In order to reduce the weight of the building, the purpose of this utility model is to provide a prefabricated and assembled lightweight floor slab, which overcomes the heavy weight of the traditional floor slab system, large cast-in-place workload, slow construction speed and poor construction quality And other issues.

In order to achieve the above object, the utility model provides a prefabricated light-weight floor slab, which includes a plate-shaped concrete base, the concrete base is embedded with a layer of lightweight filling material and steel bars, and the concrete base has a top surface, bottom surface and four sides, on the two opposite sides of the concrete matrix, there are edge banding plates, the edge banding plate is in the shape of a flat plate, in the concrete matrix, there is a A plurality of embedded parts, each of which is provided with a through hole connecting the top surface and the bottom surface.

The above-mentioned prefabricated lightweight floor slab, wherein, at least one pre-embedded connector is provided on the side of the edge banding plate in contact with the concrete matrix, and the pre-embedded connector extends into the concrete matrix .

In the prefabricated lightweight floor slab as described above, the pre-embedded connectors are connecting steel nails, and a plurality of connecting steel nails are arranged at intervals along the center line of the edge sealing plate along the horizontal direction.

In the prefabricated lightweight floor slab described above, the embedded part is a cylindrical structure with both ends open, and the cross-section of the embedded part is circular, elliptical or rectangular.

The above-mentioned prefabricated lightweight floor slab, wherein, the edge banding plate is a steel plate, the upper end of the steel plate is in contact with the top surface, and gaps are respectively provided at the joints between the top surface and the two steel plates .

In the prefabricated lightweight floor slab as described above, the section of the notch is an inverted right-angled trapezoid, and the top surface successively connects with the steel plate through the hypotenuse and the bottom of the right-angled trapezoid.

The above-mentioned prefabricated lightweight floor slab, wherein, a plurality of the embedded parts are arranged below the gap at intervals, the lower end surface of each of the embedded parts is flush with the bottom surface, and each of the embedded parts The height of the piece is equal to the distance between the bottom surface and the bottom edge of the right-angled trapezoid.

The prefabricated lightweight floor slab described above, wherein, along the thickness direction of the concrete matrix, the lightweight filling material layer is arranged in the middle of the concrete matrix, and the steel bars include The upper top reinforcement and the bottom reinforcement located below the lightweight filling material layer, the top reinforcement is parallel to the top surface, and the top reinforcement extends through the gap to the outside of the concrete matrix.

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

The prefabricated lightweight floor slab as described above, wherein the lightweight concrete shell is filled with foamed ceramic material layers, PVC hollow panels, polyester fiber material layers and foamed clay materials stacked in sequence from top to bottom Floor.

Compared with prior art, the utility model has the following advantages:

The prefabricated assembled lightweight floor slab provided by the utility model effectively reduces the weight of the prefabricated assembled lightweight floor slab by setting a lightweight filling material layer in the concrete matrix, so that the prefabricated assembled lightweight floor slab can be made thicker, avoiding It prevents the occurrence of cracking due to the thinner prefabricated lightweight floor slab during transportation, thereby improving the strength of the prefabricated lightweight floor slab;

The prefabricated assembled lightweight floor slab provided by the utility model strengthens the use strength of the prefabricated assembled lightweight floor slab by arranging steel bars in the concrete matrix;

The prefabricated assembled lightweight floor slab provided by the utility model can be quickly connected with other components by setting edge banding boards and embedded parts, thereby effectively improving the construction of the prefabricated assembled lightweight floor slab efficiency;

The prefabricated assembled lightweight floor slab provided by the utility model can effectively reduce the workload of on-site pouring and improve the construction efficiency by setting the gap for filling the post-cast concrete while ensuring the construction quality, so that the utility model provides The prefabricated lightweight floor slab is more in line with the requirements of the prefabricated building. The application of the utility model can solve the problems existing in the floor slab in the current prefabricated building structure system, and has great practical significance and engineering application value.

Description of drawings

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

Fig. 1 is a schematic cross-sectional structural schematic diagram of a front view of a prefabricated lightweight floor slab provided according to an embodiment of the present invention;

Fig. 2 is a top view sectional structural schematic diagram of the prefabricated lightweight floor slab shown in Fig. 1;

Fig. 3 is a diagram showing the state of use of the prefabricated lightweight floor slab shown in Fig. 1;

Fig. 4 is the first structure schematic diagram of the lightweight filling material layer in the prefabricated lightweight floor slab shown in Fig. 1;

Fig. 5 is a second structural schematic view of the lightweight filling material layer in the prefabricated lightweight floor slab shown in Fig. 1 .

Explanation of reference numbers:

1-concrete matrix; 2-light filling material layer; 21-lightweight concrete shell; 22-foamed ceramic material layer; 23-PVC hollow plate; 24-polyester fiber material layer; 25-foamed clay material layer ; 3-bottom reinforcement; 4-top reinforcement; 5-edge banding; 6-embedded parts; 7-notch;

detailed description

In order to have a clearer understanding of the technical scheme, purpose and effect of the utility model, the specific implementation of the utility model will now be described in conjunction with the accompanying drawings.

As shown in Figure 1, the utility model provides a prefabricated assembled lightweight floor, which includes a plate-shaped concrete matrix 1, and the concrete matrix 1 is embedded with a lightweight filling material layer 2 and steel bars, and the lightweight filling material The setting of the layer 2 enables the weight of the concrete matrix 1 to be reduced while increasing the thickness of the concrete matrix 1, and the steel bars can further strengthen the strength of the concrete matrix 1. The concrete matrix 1 has a top surface, a bottom surface and four sides, and the four sides They are the first side and the third side which are oppositely arranged, and the second side and the fourth side which are oppositely arranged respectively, and the first side, the second side, the third side and the fourth side are connected in sequence, and on the opposite side of the concrete matrix 1 Edge banding boards 5 are pasted on the two sides, that is, side banding boards 5 are pasted on the two ends (the first side and the third side) of the concrete matrix 1 in the length direction, or on the width direction of the concrete matrix 1 The two ends (the second side and the fourth side) are covered with an edge banding plate 5, which is in the shape of a flat plate, and the prefabricated lightweight floor slab is connected with other components through the edge banding plate 5, and is placed in the concrete matrix 1 A plurality of embedded parts 6 are arranged adjacent to the edge banding plate 5, that is, each embedded part 6 embeds the end of the concrete matrix 1 and is adjacent to the edge banding plate 5, and each embedded part 6 is provided with a connecting top surface and a bottom surface When assembling, the embedded part 6 can be connected with other components, so as to improve the reliability of the connection between the prefabricated lightweight floor slab and other components.

Among them, the concrete matrix 1 is made of grouting material, or ordinary concrete, or concrete with specific functions (such as waterproof concrete, high-temperature-resistant concrete, etc.), or other materials with a certain bearing capacity. The carrying capacity needs are determined.

It should be noted that the structures on both sides of the above-mentioned prefabricated lightweight floor slabs are the same and are mirror images of each other. Figure 1 only shows the structure of one side of the prefabricated assembled lightweight floor slab. The other side structure of the prefabricated lightweight floor slab.

The prefabricated assembled lightweight floor slab provided by the utility model effectively reduces the weight of the prefabricated assembled lightweight floor slab by setting the lightweight filling material layer 1 in the concrete matrix 1, so that the prefabricated assembled lightweight floor slab can be made thicker , to avoid cracking during transportation due to the thinness of the prefabricated lightweight floor slab, thus ensuring the strength of the prefabricated lightweight floor slab; The service strength of the floor slab; by setting the edge banding plate 5 and the embedded parts 6, the prefabricated lightweight floor slab can be quickly connected with other components, thereby effectively improving the construction efficiency of the prefabricated lightweight floor slab. In addition, with Compared with the cast-in-place floor slab, the prefabricated assembled lightweight floor slab provided by the utility model effectively reduces the workload of on-site pouring while ensuring the construction quality.

Further, at least one embedded connector (not shown in the figure) is provided on the side where the edge banding plate 5 meets the concrete matrix 1, and the embedded connector extends into the concrete matrix 1, and the concrete matrix is connected by the embedded connector. 1 is integrally connected with the edge banding plate 5 to improve the reliability of the connection between the concrete matrix 1 and the edge banding plate 5 .

Furthermore, the pre-embedded connectors are connecting steel nails, and a plurality of connecting steel nails are arranged at intervals along the center line of the edge sealing plate 5 in the horizontal direction, that is, a row of connecting steel nails is arranged on the side of the edge sealing plate 5, and multiple connecting steel nails are arranged on the side of the edge sealing plate 5. The arrangement of steel nails further strengthens the reliability of the connection between the concrete matrix 1 and the edge banding plate 5 .

Of course, the pre-embedded connector can also be a connecting plate, or a connecting block, or multiple rows of connecting steel nails, etc., which will not be described in detail here, but as long as the reliability of the connection between the concrete base 1 and the edge banding 5 can be improved, Any existing structure or its simple replacement should be within the protection scope of the present utility model.

In one embodiment of the present utility model, as shown in Figure 2, the embedded part 6 is a cylindrical structure with open ends, and the cross section of the embedded part 6 is circular, oval or rectangular, preferably, as As shown in FIG. 2 , the embedded part 6 is a steel pipe with an oval cross section.

Further, as shown in Figure 1, the edge banding plate 5 is a steel plate, the lower end of the steel plate can be connected with other components, the upper end of the steel plate is connected with the top surface, and gaps 7 are respectively provided at the joints between the top surface and the two steel plates. During the process, by pouring the post-cast concrete 10 between the two adjacent gaps 7 of the two adjacent prefabricated lightweight floor slabs arranged side by side, the adjacent two prefabricated assembled lightweight floor slabs arranged side by side can be connected to each other. Compared with cast-in-place slabs, the workload of on-site pouring is greatly reduced.

Furthermore, the section of the notch 7 is an inverted right-angled trapezoid, and the top surface successively connects with the steel plate through the hypotenuse and the bottom edge of the right-angle trapezoid. When the post-cast concrete 10 is poured, it can play a guiding role, so that the post-cast concrete 10 can be evenly distributed between the two adjacent gaps 7, so as to ensure the connection between the adjacent two prefabricated lightweight floor slabs arranged side by side. reliability.

Further, a plurality of embedded parts 6 are arranged below the gap 7 at intervals, and the lower end surface of each embedded part 6 is flush with the bottom surface, so that the prefabricated lightweight floor can be placed on other components smoothly, and each embedded part The height of the piece 6 is equal to the distance from the bottom surface to the bottom edge of the right-angled trapezoid, so that the embedded piece 6 is hidden inside the prefabricated lightweight floor slab through the post-cast concrete 10, so that the outer surface of the prefabricated lightweight floor slab more even.

Of course, the upper end of the embedded part 6 can also extend upwards into the gap 7 , but the height of the embedded part 6 is smaller than the thickness of the concrete matrix 1 .

In this embodiment, as shown in Figure 1, along the thickness direction of the concrete matrix 1, the lightweight filling material layer 2 is arranged in the middle of the concrete matrix 1, and the steel bars include the top steel bars 4 above the lightweight filling material layer 2 and the The bottom steel bar 3 below the lightweight filling material layer 2, the top steel bar 4 is parallel to the upper surface of the concrete matrix 1, a part of the top steel bar 4 extends through the gap 7 to the outside of the concrete matrix 1, and extends to the top steel bar 4 on the outside of the concrete matrix 1 The strength of the post-cast concrete 10 can be strengthened, that is, the connection strength between the prefabricated part and the cast-in-place part of the prefabricated assembled lightweight floor slab is enhanced, thereby improving the service performance of the prefabricated assembled lightweight floor slab.

Wherein, there are multiple top reinforcement bars 4 and bottom reinforcement bars 3 , and each top reinforcement bar 4 is located between two adjacent embedded parts 6 .

In this embodiment, as shown in Figure 4, the lightweight filling material layer 2 is composed of a plurality of lightweight concrete shells 21 arranged at intervals, and the lightweight concrete shells 21 are hollow cylindrical structures, and the lightweight concrete shells The cross section of 21 can be circular, oval, triangular or trapezoidal, preferably the cross section of lightweight concrete shell 21 is isosceles trapezoidal, and the upper wall surface of lightweight concrete shell 21 is arranged parallel to the top surface of concrete matrix 1, light The lower wall surface of the concrete shell 21 is arranged parallel to the bottom surface of the concrete matrix 1 .

Further, as shown in Figure 5, the lightweight concrete shell 21 is filled with a foamed ceramic material layer 22, a PVC hollow plate 23, a polyester fiber material layer 25 and a foamed clay material layer 25 that are stacked sequentially from top to bottom. .

It should be noted that during manufacturing, according to the thickness requirements of the prefabricated lightweight floor slab, the above-mentioned foamed ceramic material layer 22, PVC hollow board 23, polyester fiber material layer 25 and foamed clay material layer 25 can be added One, or multiple arbitrary combinations are filled in the lightweight concrete shell 21. It should be noted that when used in combination, the foamed ceramic material layer 22 and the foamed clay material layer 25 should be placed in the lightweight concrete shell The position where the upper and lower walls of the body 21 are in contact, and the sum of the weight of the foamed ceramic material layer 22 and the foamed clay material layer 25 is not less than 25% of the total weight of the filler in the lightweight concrete shell 21 .

The manufacture and usage of the prefabricated assembled lightweight floor slab provided by the utility model are specifically introduced below in conjunction with the accompanying drawings:

The prefabricated assembled lightweight floor slab provided by the utility model is prefabricated in the factory; as shown in Figure 1 and Figure 2, the lightweight filling material layer 2 is arranged in the middle of the height direction of the prefabricated assembled lightweight floor slab and embedded in the concrete matrix 1; the bottom steel bar 3 is arranged in the lower area of the prefabricated lightweight floor slab; the top steel bar 4 is arranged in the upper area of the prefabricated assembled lightweight floor slab, and a part of the top steel bar 4 is embedded in the concrete matrix 1 as a stressed steel bar, The other part protrudes from the concrete matrix 1 as a lap steel bar; the cross-section of the embedded part 6 is a ring-shaped closed section, which runs through and is embedded in the end of the prefabricated lightweight floor slab, and is used for connecting with other components (such as steel beams 9) connect;

When in use, as shown in Figure 3, two prefabricated lightweight floor slabs arranged side by side are placed on the same steel beam 9, and the side of the prefabricated lightweight floor slab provided with edge banding 5 is positioned at the side of the steel beam 9. Directly above, the prefabricated lightweight floor slab is welded to the steel beam 9 through the embedded parts 6 and the edge banding plate 5; the pegs 8 are welded to the steel beam 9 through the through holes in the embedded parts 6; The top reinforcement bar 4 of the lightweight floor slab is connected with the top reinforcement bar 4 of another adjacent prefabricated lightweight floor slab; the two adjacent gaps 7 of the adjacent two prefabricated assembled lightweight floor slabs arranged side by side and the embedded parts After pouring concrete 10 in the through hole of 6, the connection between two adjacent prefabricated lightweight floor slabs and steel beams can be completed.

In summary, the prefabricated assembled lightweight floor slab provided by the utility model effectively reduces the weight of the prefabricated assembled lightweight floor slab by setting a lightweight filling material layer in the concrete matrix, so that the prefabricated assembled lightweight floor slab can be made The thickness of the prefabricated light-weight floor slab is thicker, which avoids the cracking caused by the thinner prefabricated light-weight floor slab during transportation, thereby improving the strength of the prefabricated light-weight floor slab;

The prefabricated assembled lightweight floor slab provided by the utility model strengthens the use strength of the prefabricated assembled lightweight floor slab by arranging steel bars in the concrete matrix;

The prefabricated assembled lightweight floor slab provided by the utility model can be quickly connected with other components by setting edge banding boards and embedded parts, thereby effectively improving the construction of the prefabricated assembled lightweight floor slab efficiency;

The prefabricated assembled lightweight floor slab provided by the utility model can effectively reduce the workload of on-site pouring and improve the construction efficiency by setting the gap for filling the post-cast concrete while ensuring the construction quality, so that the utility model provides The prefabricated lightweight floor slab is more in line with the requirements of the prefabricated building. The application of the utility model can solve the problems existing in the floor slab in the current prefabricated building structure system, and has great practical significance and engineering application value.

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

Claims (10)

1. a kind of prefabricated assembled light floor, it is characterised in that the prefabricated assembled light floor includes plate-like mixed Solidifying soil matrix body, is embedded with lightweight filler layer and reinforcing bar in the concrete substrate, the concrete substrate has top surface, bottom Face and four sides, are covered with banded plate on two relative sides of the concrete substrate, and the banded plate is in flat board Shape, multiple built-in fittings are provided with the neighbouring banded plate in the concrete substrate, and each built-in fitting is communicated with described Top surface and the through hole of the bottom surface.

2. prefabricated assembled light floor according to claim 1, it is characterised in that

The side that the banded plate connects with the concrete substrate is provided with least one built-in connection, the pre-buried connection Part is extended in the concrete substrate.

3. prefabricated assembled light floor according to claim 2, it is characterised in that

The built-in connection is connection steel nail, and banded plate centerline in the horizontal direction is arranged at intervals with described in multiple Connection steel nail.

4. prefabricated assembled light floor according to any one of claim 1 to 3, it is characterised in that

The built-in fitting is the tubular structure of both ends open, the circular in cross-section of the built-in fitting, oval or rectangle.

5. prefabricated assembled light floor according to claim 4, it is characterised in that

The banded plate is steel plate, and the upper end of the steel plate connects with the top surface, the engagement of steel plate described in the top surface and two Place is respectively equipped with breach.

6. prefabricated assembled light floor according to claim 5, it is characterised in that

The section of the breach be in inverted right-angled trapezium, the top surface pass sequentially through the right-angled trapezium hypotenuse and base with The steel plate connects.

7. prefabricated assembled light floor according to claim 6, it is characterised in that

Multiple built-in fittings are disposed on the lower section of the breach, and the lower surface of each built-in fitting is flat with the bottom surface Together, the height of each built-in fitting is equal to the distance between described bottom surface to the base of the right-angled trapezium.

8. prefabricated assembled light floor according to claim 5, it is characterised in that

Along the thickness direction of the concrete substrate, the lightweight filler layer is arranged at the middle part of the concrete substrate, The reinforcing bar includes being located at the top rebars above lightweight filler layer and below lightweight filler layer Bottom reinforcement bars, parallel to the top surface, the top rebars are through the gap extension to the coagulation for the top rebars The outside of soil matrix body.

9. prefabricated assembled light floor according to any one of claim 1 to 3, it is characterised in that

The lightweight filler layer is made up of multiple spaced lightweight concrete housings, and the lightweight concrete housing It is hollow cylindrical configuration.

10. prefabricated assembled light floor according to claim 9, it is characterised in that

In the lightweight concrete housing filled with the foamed ceramic material layer, PVC cored slabs being from top to bottom cascading, Polyester Fibers layer and foaming ceramic material layer.