Floor structure

Abstract

The utility model discloses a floor slab structure. The floor slab structure comprises an ALC laminated slab part, a connecting steel bar and a post-pouring concrete part, the ALC laminated slab part comprises lightweight concrete and laminated reinforcing steel bars, the laminated reinforcing steel bars comprise embedded reinforcing steel bars and upper chord reinforcing steel bars, at least part of the embedded reinforcing steel bars are located in the lightweight concrete, and the upper chord reinforcing steel bars are located above the lightweight concrete; the connecting steel bars are lapped and fixedly connected to the upper surfaces of the upper chord steel bars so as to connect the at least two spliced ALC laminated slab parts; the post-pouring concrete part is located above the ALC laminated slab part and connected to the ALC laminated slab part, and at least part of the upper chord steel bars and at least part of the connecting steel bars are located in the post-pouring concrete part. According to the floor slab structure disclosed by the utility model, the floor slab structure comprises the ALC laminated slab part, the connecting steel bars and the post-pouring concrete part, so that the strength of the floor slab structure is high; in addition, the ALC laminated slab part is light in weight and convenient to hoist.

Description

Technical Field

[0001] The utility model relates to the field of building technology, and more particularly to a floor slab structure. Background Art

[0002] ALC is the abbreviation of autoclaved lightweight concrete. The ALC composite slab is a porous silicate material made of cement, silica sand, lime and gypsum as raw materials, adding a foaming agent, and through grinding, pouring, gas generation, cutting, pre-curing and autoclave curing. Its density is smaller than that of general cement materials, and it has the characteristics of light weight, high strength, and good fire resistance, sound insulation, heat insulation and thermal insulation performance. It is a new type of green environmental protection building material with light weight and porosity. Reinforced bars are arranged in the ALC composite slab after being processed and can be applied to buildings.

[0003] The mature factory production process of the ALC composite slab meets the requirements of the development of industrialized buildings in China. For prefabricated floor slabs, while requiring them to meet mechanical properties, they also need to have excellent thermal insulation, heat insulation, sound insulation, waterproofing, decoration and other properties.

[0004] In existing engineering projects, after the ALC composite slabs are laid, the slab joint steel bars and caulking mortar are inserted at the joint positions between the slabs to form an integral floor slab. However, due to the low strength of the ALC composite slab, the strength of the floor slab is low.

[0005] Therefore, the utility model provides a floor slab structure to solve at least partially the above problems. Summary of the Utility Model

[0006] A series of simplified concepts are introduced in the Summary of the Utility Model section, which will be further described in detail in the Specific Embodiment section. The Summary of the Utility Model section of the utility model does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0007] To solve at least partially the above technical problems, the utility model provides a floor slab structure, which includes:

[0008] An ALC composite slab part, which includes lightweight concrete and composite steel bars. The composite steel bars include embedded steel bars and upper chord steel bars. At least part of the embedded steel bars are located in the lightweight concrete, and the upper chord steel bars are located above the lightweight concrete;

[0009] Connecting steel bars, which are overlapped and fixedly connected to the upper surface of the upper chord steel bars to connect at least two ALC composite slab parts connected by splicing;

[0010] The post-cast concrete part is located above the ALC composite slab part and is connected to the ALC composite slab part. At least part of the upper chord steel bars and the connecting steel bars are located within the post-cast concrete part.

[0011] According to the floor slab structure of the present utility model, the floor slab structure includes an ALC composite slab part, connecting steel bars and a post-cast concrete part, and the strength of the floor slab structure is high; in addition, the ALC composite slab part is light in weight and convenient for hoisting.

[0012] Optionally, the length direction of the upper chord steel bars intersects with the length direction of the connecting steel bars.

[0013] Optionally, the ALC composite slab part includes a composite slab body, and part of the composite slab body extends upward and protrudes to form a composite slab reinforcing rib. The upper chord steel bars are located above the composite slab reinforcing rib, and the composite slab reinforcing rib is located within the post-cast concrete part.

[0014] Optionally, the upper end of the composite slab reinforcing rib extends and protrudes along the length direction of the connecting steel bars to form a protruding part. Along the vertical direction, there is a gap between the protruding part and the composite slab body.

[0015] Optionally, the lower surface of the protruding part is inclined to the vertical direction.

[0016] Optionally, the embedded steel bars include bottom slab distribution steel bars. The length direction of the bottom slab distribution steel bars is parallel to the length direction of the connecting steel bars, and the bottom slab distribution steel bars are located below the upper chord steel bars.

[0017] Optionally, at least two bottom slab distribution steel bars and at least two connecting steel bars correspond one by one. Along the length direction of the upper chord steel bars, the positions of the corresponding bottom slab distribution steel bars and connecting steel bars are correspondingly arranged.

[0018] Optionally, the embedded steel bars include lower chord steel bars. The length direction of the lower chord steel bars is parallel to the length direction of the upper chord steel bars, and the lower chord steel bars are located below the upper chord steel bars.

[0019] Optionally, the embedded steel bars further include web member steel bars. The upper end of the web member steel bars is connected to the upper chord steel bars, and the lower end of the web member steel bars is connected to the lower chord steel bars.

[0020] Optionally, the length direction of the web member steel bars is inclined to the vertical direction.

[0021] Optionally, the web member steel bars include first web member steel bars and second web member steel bars. The length direction of the first web member steel bars intersects with the length direction of the second web member steel bars.

[0022] Optionally, the first web member steel bars intersect with the second web member steel bars. Description of the Drawings

[0023] To make the advantages of the present utility model easier to understand, the present utility model briefly described above will be described in more detail by referring to specific embodiments shown in the accompanying drawings. It can be understood that these drawings only depict typical embodiments of the present utility model, and thus should not be considered as limiting the scope of its protection. The present utility model will be described and explained with additional features and details through the drawings.

[0024] Figure 1 Schematic three-dimensional view of the truss reinforcement of the floor slab structure according to a preferred embodiment of the present utility model;

[0025] Figure 2 For Figure 1 Schematic three-dimensional view of the ALC composite slab part of the floor slab structure; and

[0026] Figure 3 For Figure 1 Schematic three-dimensional view of the floor slab structure.

[0027] Description of reference numerals

[0028] 110: ALC composite slab part 120: Lightweight concrete

[0029] 121: Composite slab body 122: Composite slab reinforcement rib

[0030] 123: Protruding part 130: Composite reinforcement

[0031] 131: Embedded reinforcement 132: Upper chord reinforcement

[0032] 133: Bottom slab distribution reinforcement 134: Lower chord reinforcement

[0033] 135: Web member reinforcement 136: First web member reinforcement

[0034] 137: Second web member reinforcement 138: Third web member reinforcement

[0035] 139: Fourth web member reinforcement 140: Connecting reinforcement

[0036] 150: Post-cast concrete part Detailed description of the specific embodiment

[0037] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the embodiments of the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the embodiments of the present utility model, some well-known technical features in the art are not described.

[0038] The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. It should be noted that the terms "upper", "lower" and similar expressions used herein are for illustrative purposes only and are not limiting.

[0039] In this text, the ordinal numbers such as "first" and "second" cited in the present utility model are only identifiers and do not have any other meanings, such as a specific order, etc.

[0040] In order to thoroughly understand the embodiments of the present utility model, detailed structures will be presented in the following description. Obviously, the implementation of the embodiments of the present utility model is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present utility model are described in detail below. However, in addition to these detailed descriptions, the present utility model may also have other embodiments.

[0041] The present utility model provides a floor slab structure. After the ALC composite slab parts 110 are spliced into a whole, connecting steel bars 140 are provided, and then concrete is poured (post-poured concrete part 150) to form the floor slab structure.

[0042] Please refer to Figures 1 to 3 , the floor slab structure includes an ALC (Autoclaved Lightweight Concrete) composite slab part. The ALC composite slab parts 110 can be pre-processed in a factory. After the finished ALC composite slab parts 110 are transported to the installation position, at least two ALC composite slab parts 110 are spliced into a whole, then connecting steel bars 140 are provided, and finally the post-poured concrete part 150 is poured to form an integral floor slab structure.

[0043] As Figure 1 and Figure 2 shown, the ALC composite slab part 110 includes lightweight concrete 120 and composite steel bars 130. The lightweight concrete 120 is autoclaved lightweight concrete. The composite steel bar 130 part includes embedded steel bars 131 and upper chord steel bars 132. At least part of the embedded steel bars 131 is located within the lightweight concrete 120. The upper chord steel bars 132 are located above the lightweight concrete 120. Thus, the rigidity and strength of the ALC composite slab part 110 are large.

[0044] As Figure 3 shown, the floor slab structure further includes connecting steel bars 140. The connecting steel bars 140 are lapped and fixedly connected to (such as welded or connected by steel wires) the upper surface of the upper chord steel bars 132 to connect at least two spliced and connected ALC composite slab parts 110. One connecting steel bar 140 can connect adjacent ALC composite slab parts 110. Thus, the rigidity and strength of the whole formed by splicing at least two ALC composite slab parts 110 are large.

[0045] Please continue to refer to Figure 3 The floor slab structure further includes a post-cast concrete part 150. After the connecting steel bars 140 and at least two spliced ALC laminated panel parts 110 form an integral body, the concrete structure formed by casting concrete above this integral body is the post-cast concrete part 150. In this way, the post-cast concrete part 150 is located above the ALC laminated panel part 110 and is connected to the ALC laminated panel part 110. At least part of the upper chord steel bars 132 and the connecting steel bars 140 are located within the post-cast concrete part 150. Thus, the post-cast concrete part 150 connects the connecting steel bars 140 and at least two ALC laminated panel parts 110. The ALC laminated panel part 110, the connecting steel bars 140 and the post-cast concrete part 150 together resist tension and pressure, which can further increase the strength and stiffness of the floor slab structure, and further improve the load-bearing capacity of the floor slab structure.

[0046] In addition, part of the floor slab structure is the ALC laminated panel part 110. The weight of the floor slab structure is small.

[0047] The post-cast concrete part 150 makes at least two spliced ALC laminated panel parts 110 form an integral body, and the overall performance of the floor slab structure is good and it is not easy to leak water.

[0048] The arrangement of the ALC laminated panel part 110, the connecting steel bars 140 and the post-cast concrete part 150 makes the overall floor slab structure not easy to crack, has good waterproof performance, and good heat insulation, sound insulation and heat preservation performance.

[0049] The weight of a single ALC laminated panel part 110 is small, which is convenient for hoisting and transportation.

[0050] In this embodiment, the floor slab structure includes an ALC laminated panel part 110, connecting steel bars 140 and a post-cast concrete part 150, and the strength of the floor slab structure is high; in addition, the weight of the ALC laminated panel part 110 is small, which is convenient for hoisting.

[0051] Optionally, the length direction of the upper chord steel bars 132 and the length direction of the connecting steel bars 140 intersect (for example, perpendicular). Thus, the strength and stiffness of the floor slab structure can be further increased.

[0052] Optionally, as Figure 2As shown in the figure, the ALC composite slab part 110 includes a composite slab body 121. A part of the composite slab body 121 extends upward and protrudes to form composite slab ribs 122. There are at least two composite slab ribs 122. The at least two composite slab ribs 122 are arranged at intervals of two. The upper chord steel bars 132 are located above the composite slab ribs 122. The composite slab ribs 122 are located within the cast-in-place concrete part 150. In this way, the ALC composite slab part 110 and the cast-in-place concrete part 150 are tenon-mortise connected. The cast-in-place concrete part 150 is arranged on both sides of the composite slab ribs 122. The connection strength between the ALC composite slab part 110 and the cast-in-place concrete part 150 is high.

[0053] Further, the upper end of the composite slab rib 122 extends and protrudes along the length direction of the connecting steel bar 140 to form a protruding part 123. In the vertical direction, there is a gap between the protruding part 123 and the composite slab body 121. The cast-in-place concrete part 150 is filled between the protruding part 123 and the composite slab body 121. It can further increase the connection strength between the ALC composite slab part 110 and the cast-in-place concrete part 150.

[0054] Further, the lower surface of the protruding part 123 is inclined to the vertical direction. Thus, it is convenient for the processing and forming of the ALC composite slab part 110.

[0055] Optionally, please refer to Figure 2 and Figure 3 , the embedded steel bar 131 includes a bottom slab distribution steel bar 133. The length direction of the bottom slab distribution steel bar 133 is parallel to the length direction of the connecting steel bar 140. The bottom slab distribution steel bar 133 is located below the upper chord steel bar 132. Thus, it can further increase the strength and stiffness of the ALC composite slab part 110.

[0056] Further optionally, there are at least two bottom slab distribution steel bars 133. There are at least two connecting steel bars 140. The at least two bottom slab distribution steel bars 133 and the at least two connecting steel bars 140 correspond one by one. Along the length direction of the upper chord steel bar 132, the positions of the corresponding bottom slab distribution steel bar 133 and the connecting steel bar 140 are the same and thus correspond. Thus, it can further increase the strength of the floor slab structure.

[0057] Optionally, as shown in Figures 1 to 3 , the embedded steel bar 131 includes a lower chord steel bar 134. The length direction of the lower chord steel bar 134 is parallel to the length direction of the upper chord steel bar 132. The lower chord steel bar 134 is located below the upper chord steel bar 132. Along the length direction of the connecting steel bar 140, a corresponding lower chord steel bar 134 is arranged directly below each upper chord steel bar 132. The number of the lower chord steel bars 134 is greater than the number of the upper chord steel bars 132. Thus, it can further increase the strength and stiffness of the ALC composite slab part 110.

[0058] As shown Figure 1 and Figure 2 shown, the embedded steel bar 131 further includes web bar steel bars 135. The upper end of the web bar steel bar 135 is connected to the upper chord steel bar 132. The lower end of the web bar steel bar 135 is connected to the lower chord steel bar 134. The lower end of the web bar steel bar 135 is located within the composite slab stiffening rib 122. Part of the web bar steel bar 135 is located outside the composite slab stiffening rib 122. The connected upper chord steel bar 132, web bar steel bar 135 and lower chord steel bar 134 form truss steel bars. Thus, the strength and stiffness of the ALC composite slab part 110 can be further increased.

[0059] Further, as shown Figure 1 shown, the length direction of the web bar steel bar 135 is inclined to the vertical direction. Thus, the strength and stiffness of the ALC composite slab part 110 can be further increased.

[0060] Further, please continue to refer to Figure 1 , the web bar steel bar 135 includes a first web bar steel bar 136 and a second web bar steel bar 137. The length direction of the first web bar steel bar 136 intersects with the length direction of the second web bar steel bar 137. Thus, the strength and stiffness of the ALC composite slab part 110 can be further increased.

[0061] Further, the first web bar steel bar 136 intersects with the second web bar steel bar 137. Thus, the strength and stiffness of the ALC composite slab part 110 can be further increased.

[0062] Further, the web bar steel bar 135 further includes a third web bar steel bar 138 and a fourth web bar steel bar 139. The length direction of the third web bar steel bar 138 intersects with the length direction of the fourth web bar steel bar 139. The third web bar steel bar 138 intersects with the fourth web bar steel bar 139. The third web bar steel bar 138 is inclined to the first web bar steel bar 136 and the second web bar steel bar 137. The fourth web bar steel bar 139 is inclined to the first web bar steel bar 136 and the second web bar steel bar 137. One end of the second web bar steel bar 137 intersects with one end of the fourth web bar steel bar 139. One end of the first web bar steel bar 136 intersects with one end of the fourth web bar steel bar 138. Thus, the strength and stiffness of the ALC composite slab part 110 can be further increased.

[0063] The present utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of illustration and example, and are not intended to limit the present utility model within the scope of the described embodiments. In addition, those skilled in the art can understand that the present utility model is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present utility model, and these variations and modifications all fall within the scope of protection required by the present utility model. The scope of protection of the present utility model is defined by the appended claims and their equivalent scope.

[0064] Unless otherwise defined, the technical and scientific terms used herein have the same meanings as commonly understood by one of ordinary skill in the technical field of the present utility model. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. Terms such as "component" appearing herein can represent either a single part or a combination of multiple parts. Terms such as "mounted" and "arranged" appearing herein can represent either a component being directly attached to another component or a component being attached to another component through an intermediate member. The features described in one embodiment herein can be applied alone or in combination with other features to another embodiment, unless the feature is not applicable or otherwise stated in that other embodiment.

Claims

1. A floor structure, characterized in that: The floor structure comprises: An ALC laminated slab portion, the ALC laminated slab portion comprising lightweight concrete and laminated steel bars, the laminated steel bars comprising embedded steel bars and upper chord steel bars, at least a portion of the embedded steel bars being located in the lightweight concrete, and the upper chord steel bars being located above the lightweight concrete; Connecting steel bars, which are overlapped and fixedly connected to the upper surface of the upper chord steel bars to connect at least two of the spliced ​​ALC laminated plate parts; A post-cast concrete portion is located above the ALC laminated slab portion and connected to the ALC laminated slab portion, wherein at least a portion of the upper chord reinforcement and the connection reinforcement are located in the post-cast concrete portion.

2. The floor structure according to claim 1, characterized in that: The length direction of the upper chord steel bars intersects with the length direction of the connecting steel bars.

3. The floor structure according to claim 1, characterized in that: The ALC composite plate portion includes a composite plate body, part of which extends and protrudes upward to form a composite plate reinforcement rib, the upper chord steel bar is located above the composite plate reinforcement rib, and the composite plate reinforcement rib is located in the post-cast concrete portion.

4. The floor structure according to claim 3, characterized in that: The upper end of the reinforcing rib of the composite plate extends and protrudes along the length direction of the connecting steel bar to form a protruding portion, and there is a gap between the protruding portion and the composite plate body along the vertical direction.

5. The floor structure according to claim 4, characterized in that: A lower surface of the protrusion is inclined with respect to the vertical direction.

6. The floor structure according to claim 1, characterized in that: The embedded steel bars include slab bottom distribution steel bars, the length direction of the slab bottom distribution steel bars is parallel to the length direction of the connecting steel bars, and the slab bottom distribution steel bars are located below the upper chord steel bars.

7. The floor structure according to claim 6, characterized in that: At least two of the slab bottom distribution steel bars correspond to at least two of the connection steel bars one by one, and along the length direction of the upper chord steel bars, the positions of the corresponding slab bottom distribution steel bars and the connection steel bars are correspondingly arranged.

8. The floor structure according to claim 1, characterized in that: The embedded steel bars include lower chord steel bars, the length direction of the lower chord steel bars is parallel to the length direction of the upper chord steel bars, and the lower chord steel bars are located below the upper chord steel bars.

9. The floor structure according to claim 8, characterized in that: The embedded steel bars further include a web bar, the upper end of the web bar is connected to the upper chord steel bars, and the lower end of the web bar is connected to the lower chord steel bars.

10. The floor structure according to claim 9, characterized in that: The length direction of the web reinforcement is inclined to the vertical direction.

11. The floor structure according to claim 10, characterized in that: The web reinforcement includes a first web reinforcement and a second web reinforcement, and the length direction of the first web reinforcement intersects with the length direction of the second web reinforcement.

12. The floor structure according to claim 11, characterized in that: The first web member reinforcement intersects with the second web member reinforcement.

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