CN206279677U - Prefabricated assembled interlock steel sheet light floor - Google Patents

Abstract

The utility model provides a prefabricated and assembled light-weight floor slab of occlusal steel plates, which includes a plate-shaped concrete matrix, a layer of lightweight filling materials and steel bars are arranged 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-sealing steel plates, and the section of the edge-sealing steel plates is corrugated. The prefabricated assembled steel plate lightweight 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. The self-weight of the small floor slab reduces the workload of cast-in-place, ensures the construction quality, improves the construction speed, and is better suitable for the green prefabricated building structure system.

Description

A prefabricated assembled steel plate lightweight floor slab

technical field

The utility model relates to the field of building structures, in particular to a prefabricated assembled light-weight floor slab of seamed steel plates.

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 utility model provides a prefabricated and assembled light-weight floor slab of seamed steel plates. The prefabricated and assembled light-weight floor slab of seamed steel plates overcomes the heavy weight of the traditional floor system, the heavy workload of cast-in-place, and the slow construction speed. Poor construction quality etc.

In order to achieve the above purpose, the utility model provides a prefabricated assembly type occlusal steel plate lightweight floor slab, which includes a plate-shaped concrete matrix, the concrete matrix is provided with a lightweight filling material layer and steel bars, and the concrete matrix has On the top surface, the bottom surface and the four sides, edge-sealing steel plates are pasted on the two opposite sides of the concrete matrix, and the cross-section of the edge-sealing steel plates is corrugated.

The prefabricated assembled steel plate lightweight floor slab above, wherein, at least one embedded connector is provided on the side of the edge-sealing steel plate in contact with the concrete matrix, and the embedded connector extends to the concrete within the matrix.

In the above-mentioned prefabricated light-weight floor slab with seamed steel plates, a plurality of embedded parts are provided in the concrete matrix adjacent to the edge-sealed steel plates, and each of the embedded parts is provided with a connection between the top surface and the through holes in the bottom surface.

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

As for the prefabricated lightweight floor slab with seamed steel plates as described above, the upper end of the edge-sealed steel plate is in contact with the top surface, and gaps are respectively provided at joints between the top surface and the two edge-sealed steel plates.

The prefabricated assembled steel plate lightweight floor slab above, wherein, the cross-section of the gap is an inverted right-angled trapezoid, and the top surface is sequentially connected to the edge-sealed steel plate through the hypotenuse and bottom of the right-angled trapezoid. catch.

In the above-mentioned prefabricated light-weight floor slab of interlocking steel plates, a plurality of the embedded parts are arranged below the gap at intervals, the lower end surfaces of the embedded parts are flush with the bottom surface, and 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 assembled steel plate 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 top reinforcement above the material layer and the bottom reinforcement 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.

In the above-mentioned prefabricated assembled steel plate lightweight floor slab, 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 above-mentioned prefabricated assembled steel plate lightweight floor slab, wherein, the lightweight concrete shell is filled with foamed ceramic material layers, PVC hollow plates, polyester fiber material layers and foamed ceramic material layers stacked sequentially from top to bottom Terracotta material layer.

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

The prefabricated assembled light-weight floor slab of seamed steel plate provided by the utility model can effectively reduce the weight of the prefabricated assembled light-weight floor slab of seamed steel plate by arranging a light-weight filling material layer in the concrete matrix, so that the prefabricated assembled light-weight floor slab of seamed steel plate can It is made thicker to avoid cracking during transportation due to the thinner prefabricated assembled steel plate lightweight floor, thus ensuring the strength of the prefabricated assembled steel plate lightweight floor;

The utility model provides the prefabricated assembled light-weight floor slab of interlocking steel plate, which strengthens the service strength of the prefabricated assembled light-weight floor slab of interlocking steel plate by arranging steel bars in the concrete matrix;

The prefabricated occlusal steel plate lightweight floor slab provided by the utility model can quickly connect with other components by setting edge-sealing steel plates and embedded parts, thereby effectively improving the prefabricated assembly occlusal The installation speed of the steel plate lightweight floor, and the section of the edge-sealed steel plate is corrugated, and the adjacent two prefabricated assembled steel plate lightweight floors are connected by the crests and troughs of the two edge-sealed steel plates, so that the adjacent two prefabricated assembled joints Simple and convenient connection between steel plate light floor slabs;

The prefabricated assembled steel plate 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. The prefabricated assembled occlusal steel plate lightweight floor slab provided by the new model 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 assembled steel plate 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 assembled steel plate lightweight floor slab shown in Fig. 1;

Fig. 3 is a view of the use state of the prefabricated assembled steel plate lightweight floor slab shown in Fig. 1;

Fig. 4 is a top view sectional structural schematic diagram of the prefabricated assembled steel plate lightweight floor slab shown in Fig. 3;

Fig. 5 is the first structure schematic diagram of the lightweight filling material layer in the prefabricated occlusal steel plate lightweight floor slab shown in Fig. 1;

Fig. 6 is a second structural schematic diagram of the lightweight filling material layer in the prefabricated occlusal steel plate 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 steel plate; 6-embedded connectors; 7-embedded parts;

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 steel plate lightweight floor slab, which includes a plate-shaped concrete matrix 1, and the concrete matrix 1 is provided with a lightweight filling material layer 2 and steel bars, and the lightweight filling The setting of the material layer 2 can reduce the weight of the concrete matrix 1 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, four The sides are respectively the first side and the third side which are oppositely arranged, and the second side and the fourth side which are oppositely arranged, and the first side, the second side, the third side and the fourth side are connected in sequence, and the concrete matrix 1 is opposite Edge-sealed steel plates 5 are pasted on the two sides of the concrete matrix 1, that is, edge-sealed steel plates 5 are pasted on the two ends (the first side and the third side) of the concrete matrix 1 in the length direction, or in the width direction of the concrete matrix 1 Edge-banding steel plates 5 are pasted on the two ends (the second side and the fourth side), and the prefabricated occlusal steel plate lightweight floor is connected to other components through the edge-banding steel plates 5, as shown in Figure 2, the edge-banding steel plates 5 The cross-section is corrugated, and the peaks and troughs of the two adjacent edge-sealed steel plates 5 of the adjacent two prefabricated assembled steel plate lightweight floors match, and the adjacent two prefabricated assembled steel plate lightweight floors can pass through the two edge-sealed steel plates 5 The crests and troughs are butted and snapped.

Among them, the concrete matrix 1 is composed of grouting material, or ordinary concrete, or concrete with specific functions (waterproof concrete, high temperature resistant concrete, etc.), or other materials with a certain bearing capacity; the shape of the edge-sealing steel plate 5 is sinusoidal or rectangular Corrugation, trapezoidal corrugation, triangular corrugation, inverted trapezoidal corrugation, etc. can play a corrugated shape that engages.

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

The prefabricated assembly type occlusal steel plate lightweight floor slab provided by the utility model effectively reduces the weight of the prefabricated assembly type occlusal steel plate lightweight floor slab by setting a lightweight filling material layer 2 in the concrete matrix 1, making the prefabricated assembly type occlusal steel plate lightweight The floor slab can be made thicker, which avoids cracking during transportation due to the thinner prefabricated assembled steel plate lightweight floor, thereby ensuring the strength of the prefabricated assembled steel plate lightweight floor; through the concrete matrix 1 The steel bars are set inside to strengthen the use strength of the prefabricated occlusal steel plate light-weight floor; by setting the edge-sealing steel plate 5, the prefabricated occlusal steel plate light-weight floor can be quickly connected with other components, and two adjacent prefabricated assemblies The connection between the light-weight slabs of the interlocking steel plates is simple and convenient, thereby effectively improving the construction efficiency of the prefabricated occlusal steel plate lightweight slabs. The floor slab effectively reduces the workload of on-site pouring while ensuring the construction quality.

Further, as shown in Figure 1, at least one embedded connector 6 is provided on the side where the edge-sealing steel plate 5 meets the concrete matrix 1, and the embedded connector 6 extends into the concrete matrix 1, and the embedded connector 6 connects the The concrete matrix 1 and the edge-sealing steel plate 5 are connected into one body, so as to improve the reliability of the connection between the concrete matrix 1 and the edge-sealing steel plate 5 .

Further, as shown in Figure 2, the pre-embedded connector 6 is a connecting steel nail, and a plurality of connecting steel nails are arranged at intervals along the center line of the edge-sealing steel plate 5 in the horizontal direction, that is, a row of connecting steel nails is arranged on the side of the edge-sealing steel plate 5. The steel nails, the arrangement of multiple connecting steel nails, further increases the reliability of the connection between the concrete matrix 1 and the edge-sealing steel plate 5 .

Of course, the pre-embedded connector 6 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 matrix 1 and the edge-sealed steel plate 5 can be improved, Any existing structure or its simple replacement, all should be within the scope of protection of the present utility model.

In one embodiment of the present utility model, as shown in Figure 1, a plurality of embedded parts are provided in the concrete matrix 1 adjacent to the edge-sealing steel plate 5, and each embedded part is provided with a through hole connecting the top surface and the bottom surface , when the prefabricated occlusal steel plate lightweight floor slab is assembled, the embedded parts can be connected with other components to improve the reliability of the prefabricated assembled occlusal steel plate lightweight floor slab connected with other components.

It should be noted that the spacing and quantity of embedded parts are determined according to the bearing capacity requirements.

Further, as shown in Figure 2, the embedded part is a cylindrical structure with open ends, and the cross-section of the embedded part is circular, oval or rectangular. Preferably, the embedded part is a steel pipe with an oval cross-section.

Further, as shown in Figure 1, the upper end of the edge-sealing steel plate 5 is connected to the top surface, and gaps 8 are respectively provided at the joints between the top surface and the two edge-sealing steel plates 5. During the construction process, two adjacent prefabricated assemblies arranged side by side The two adjacent gaps 8 of the light-weight floor slabs of the interlocking steel plate are connected to form a post-pouring trough, and the post-pouring concrete 11 is poured into the post-pouring trough, and after the post-pouring concrete 11 is solidified, the adjacent two prefabricated assembly-type The fixed connection of the light floor slab greatly improves the reliability of the connection of two adjacent prefabricated assembled steel plate light floor slabs arranged side by side, and compared with the cast-in-place floor slab, the workload of on-site pouring is greatly reduced.

Further, the section of the notch 8 is an inverted right-angled trapezoid, and the top surface successively connects with the edge-sealing steel plate 5 through the hypotenuse and bottom of the right-angle trapezoid, that is, the two notches 8 are mirror images of each other. When the concrete 11 is poured, it can play a guiding role, so that the post-cast concrete 11 can be evenly distributed between two adjacent gaps 8, so as to further improve the connection between two adjacent prefabricated assembled steel plate lightweight floors arranged side by side. reliability.

Furthermore, a plurality of embedded parts are arranged below the gap 8 at intervals, and the lower end surface of the embedded parts is flush with the bottom surface, so that the prefabricated assembled light-weight floor slab of interlocking steel plate can be placed on other components smoothly, and the embedded parts The height is equal to the distance between the bottom surface and the bottom edge of the right-angled trapezoid. In this way, the embedded parts are hidden in the prefabricated assembled steel plate lightweight floor through the post-cast concrete 11, so that the outer surface of the prefabricated assembled steel plate lightweight floor The surface is smoother.

Of course, the upper end of the embedded part can also extend upwards into the gap 8 , but the height of the embedded part 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 8 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 post-cast concrete 11 can be enhanced, that is, the connection strength between the prefabricated part and the cast-in-place part of the prefabricated assembled occlusal steel plate lightweight floor slab is enhanced, thereby improving the performance of the prefabricated assembled occluded steel plate 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.

In this embodiment, as shown in Figure 5, 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 6, 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 which are stacked sequentially from top to bottom. .

During manufacture, according to the thickness requirements of the prefabricated lightweight floor slab, one of the above-mentioned foamed ceramic material layer 22, PVC hollow plate 23, polyester fiber material layer 25 and foamed clay material layer 25, or A variety of 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 on the upper and lower walls of the lightweight concrete shell 21. contact position, 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 use of the prefabricated assembled steel plate lightweight floor slab provided by the utility model are specifically introduced below in conjunction with the accompanying drawings:

The prefabricated assembly-type occlusal steel plate lightweight floor slab of the present utility model is prefabricated in the factory. As shown in FIG. In 1, the bottom steel bar 3 is arranged in the lower area of the prefabricated assembled steel plate lightweight floor; the top steel bar 4 is arranged in the upper area of the prefabricated assembled steel plate lightweight floor, and part of the top steel bar 4 is embedded in the prefabricated assembled steel plate lightweight floor. The reinforced floor is used as a stressed steel bar, and the other part protrudes from the prefabricated assembled occlusal steel plate lightweight slab as a lap steel bar; the cross section of the embedded steel part is a ring-shaped closed section, which runs through the prefabricated assembled occluded steel plate lightweight floor The end of is used for connecting with other members (such as steel beam 10);

When in use, as shown in Fig. 3 and Fig. 4, two prefabricated assembled light-weight floor slabs of interlocking steel plates arranged side by side are placed on the same steel beam 10, and the prefabricated assembled light-weight floor slabs of interlocking steel plates are provided with edge-sealing steel plates 5 The side of the steel beam 10 is directly above the steel beam 10, and the prefabricated occlusal steel plate lightweight floor is welded to the steel beam 10 through the edge-sealing steel plate 5 and the embedded parts; the stud 9 is welded to the steel beam through the through hole in the embedded part On the beam 10; the top steel bar 4 of the prefabricated assembled interlocking steel plate lightweight floor is connected with the top steel bar 4 of another adjacent prefabricated assembled interlocking steel plate lightweight floor; the edge banding steel plate 5 of the prefabricated assembled interlocking steel plate lightweight floor It is connected with the edge-sealing steel plate 5 of another prefabricated occlusal steel plate light-weight floor slab; in the adjacent two gaps 8 of the adjacent two prefabricated occlusal steel plate light-weight floor slabs that are occluded and connected through the edge-sealing steel plate 5 and pre-embedded After pouring the concrete 11 in the through hole of the piece, after the concrete is solidified to form a concrete filling block, the connection between two adjacent prefabricated assembled steel plate lightweight floors and the steel beam 10 can be completed.

To sum up, the prefabricated assembly-type occlusal steel plate lightweight floor slab provided by the utility model effectively reduces the weight of the prefabricated assembly-type occlusal steel plate lightweight floor slab by setting a lightweight filling material layer in the concrete matrix, so that the prefabricated assembly-type occlusal steel plate lightweight floor slab The steel plate lightweight floor can be made thicker, avoiding the cracking caused by the thin prefabricated assembled steel plate light floor during transportation, thus ensuring the strength of the prefabricated assembled steel plate light floor;

The utility model provides the prefabricated assembled light-weight floor slab of interlocking steel plate, which strengthens the service strength of the prefabricated assembled light-weight floor slab of interlocking steel plate by arranging steel bars in the concrete matrix;

The prefabricated occlusal steel plate lightweight floor slab provided by the utility model can quickly connect with other components by setting edge-sealing steel plates and embedded parts, thereby effectively improving the prefabricated assembly occlusal The installation speed of steel plate lightweight floor slabs, and the section of the edge-sealed steel plate is corrugated, two adjacent prefabricated assembled steel plate lightweight floors are connected by the crest and trough of the two edge-sealed steel plates, so that the adjacent two prefabricated assembled Simple and convenient connection between occlusal steel plate light floor slabs;

The prefabricated assembled steel plate 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. The prefabricated assembled steel plate lightweight floor slab provided by the new model is more in line with the requirements of the prefabricated building, and at the same time, the application of the utility model can solve the problems existing in the floor slab in the current prefabricated building structure system, which 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 prefabricated assembly type occlusal steel plate lightweight floor, is characterized in that, said prefabricated assembly type occlusal steel plate light floor slab comprises a plate-shaped concrete matrix, and said concrete matrix is provided with lightweight filler material layer and steel bar, The concrete matrix has a top surface, a bottom surface and four sides, and edge-sealing steel plates are pasted on the two opposite sides of the concrete matrix, and the section of the edge-sealing steel plates is corrugated. 2. The prefabricated assembled steel plate lightweight floor slab according to claim 1, characterized in that, At least one pre-embedded connector is provided on the side of the edge-sealing steel plate in contact with the concrete matrix, and the pre-embedded connector extends into the concrete matrix. 3. The prefabricated assembled steel plate lightweight floor slab according to claim 2, characterized in that, A plurality of embedded parts are arranged in the concrete matrix adjacent to the edge-sealed steel plate, and each of the embedded parts is provided with a through hole connecting the top surface and the bottom surface. 4. The prefabricated assembled steel plate lightweight floor slab according to claim 3, characterized in that, The embedded part is a cylindrical structure with both ends open, and the cross section of the embedded part is circular, oval or rectangular. 5. The prefabricated assembled steel plate lightweight floor slab according to claim 4, characterized in that, The upper end of the edge-sealing steel plate is in contact with the top surface, and gaps are respectively provided at joints between the top surface and the two edge-sealing steel plates. 6. The prefabricated assembled steel plate lightweight floor slab according to claim 5, characterized in that, The cross-section of the notch is an inverted right-angled trapezoid, and the top surface successively connects with the edge-sealing steel plate through the hypotenuse and the bottom edge of the right-angled trapezoid. 7. The prefabricated assembled steel plate lightweight floor slab according to claim 6, characterized in that, A plurality of embedded parts are arranged below the gap at intervals, the lower end surface of the embedded parts is flush with the bottom surface, and the height of the embedded parts is equal to the bottom surface to the bottom edge of the right-angled trapezoid the distance between. 8. The prefabricated assembled steel plate lightweight floor slab according to claim 5, characterized in that, 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 a top steel bar located above the lightweight filling material layer and a top steel bar located on the lightweight filling material layer. The lower bottom steel bar, the top steel bar is parallel to the top surface, and the top steel bar extends through the gap to the outside of the concrete matrix. 9. The prefabricated assembled steel plate lightweight floor slab according to any one of claims 1 to 8, characterized in that, 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. 10. The prefabricated assembled steel plate lightweight floor slab according to claim 9, characterized in that, The lightweight concrete shell is filled with a layer of foamed ceramic material, a PVC hollow plate, a layer of polyester fiber material and a layer of foamed clay material which are sequentially stacked from top to bottom.