CN218437701U

CN218437701U - Prefabricated floor slab

Info

Publication number: CN218437701U
Application number: CN202222718099.1U
Authority: CN
Inventors: 金耀
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-02-03
Anticipated expiration: 2032-10-14

Abstract

The application discloses prefabricated floor slab, including the floor slab body, the floor slab body is equipped with first connecting piece at its erection joint's side, the inside pipeline that is equipped with of floor slab body, the floor slab body is in pipeline kneck is equipped with first tongue-and-groove. The pipeline is arranged in the floor slab body of the prefabricated floor slab, the first rabbet is arranged at the pipeline joint, the pipeline can be conveniently spliced and installed, concrete is poured at the rabbet after the pipeline is installed, a template does not need to be paved when the concrete is poured at the rabbet, the construction process is simplified, and the construction time can be greatly saved.

Description

Prefabricated floor slab

Technical Field

The application relates to the technical field of building structures, in particular to a prefabricated floor slab.

Background

The prefabricated floor slab is a building component which is manufactured in advance in a prefabrication factory and then transported to an installation site for assembly. The building of the house can not be separated from the floor slab, and the vertical space of the multi-storey and high-rise buildings needs to be divided by the floor slab, so that the multi-storey independent building space is formed vertically. The traditional construction mode of the floor slab is that after a template is erected on a construction site, electromechanical pre-buried pipelines are laid and steel bars are bound, the floor slab concrete is poured; most of the existing fabricated floor slabs adopt a composite floor slab technology, namely, after the prefabricated floor slabs are installed on a construction site, electromechanical pre-buried pipelines are laid on the prefabricated floor slabs, surface layer reinforcing steel bars of the floor slabs are bound, and surface layer concrete is poured. Therefore, no matter the cast-in-place floor slab or the composite floor slab, the electromechanical pipelines are required to be laid on site, reinforcing steel bars are required to be bound on a construction site, and a large amount of concrete is poured, so that the site construction procedures are more, the construction period is longer, and the environmental protection is not facilitated.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the application provides a prefabricated floor slab, after the prefabricated floor slab is installed and spliced with a pipeline, a small amount of concrete is poured on the local part of the floor slab, and a template is not required to be laid when the local concrete is poured, so that the construction flow is simplified, the construction procedures are reduced, the field wet operation is greatly reduced, and the environmental protection is facilitated.

The technical scheme provided by the application is as follows:

a prefabricated floor slab comprises a floor slab body, wherein a first connecting piece is arranged on the side edge of the floor slab body in mounting connection, a pipeline is arranged in the floor slab body, and a first tongue-and-groove is formed in the joint of the pipeline of the floor slab body.

Furthermore, a second tongue-and-groove is formed in the side edge of the floor slab body where the pipeline connector is located.

Furthermore, the side all around of floor body is followed floor body extending direction all is equipped with first connecting piece.

Furthermore, a fourth tongue-and-groove is arranged on the side edge of the floor slab body.

Further, the width of the fourth tongue-and-groove is smaller than or equal to the length of the first connecting piece extending out of the floor slab body.

Further, the first connecting piece is a U-shaped or arc-shaped steel bar.

Furthermore, the first connecting piece is used for installing the floor slab body on the top of a beam or a wall, a second connecting piece is arranged on the top of the beam or the wall, and concrete is poured on the first connecting piece and the second connecting piece after the top of the beam or the wall is matched with the first connecting piece and is used for fixing the floor slab body on the top of the beam or the wall.

Furthermore, a third tongue-and-groove is arranged on the side edge of the floor slab body provided with the first connecting piece, the width of the third tongue-and-groove is larger than or equal to the length of the first connecting piece extending out of the floor slab body, a second connecting piece is arranged on the side surface of a beam or a wall, the length of the second connecting piece extending out of the beam or the wall is smaller than the width of the third tongue-and-groove, and post-cast concrete is matched between the first connecting piece and the second connecting piece at the third tongue-and-groove to fix the floor slab body on the side surface of the beam or the wall.

Furthermore, the first connecting piece and the second connecting piece are U-shaped or arc-shaped steel bars, and at least one reinforcing piece is arranged inside the first connecting piece and the second connecting piece and parallel to the side edge of the floor slab body.

Furthermore, the first connecting piece is used for fixing the floor slab body on the other floor slab body, the first connecting piece is a U-shaped or arc-shaped steel bar, and at least one reinforcing piece is arranged inside the first connecting piece and parallel to the side edge of the floor slab body.

The utility model provides a prefabricated floor is equipped with pre-buried pipeline at floor body inside, and is equipped with first tongue-and-groove at the pipeline kneck, and the pipeline concatenation installation of being convenient for waits that local concrete is pour again in first tongue-and-groove department after the pipeline concatenation installation is accomplished, need not lay the template of concrete, has simplified the construction flow, has reduced the construction process to on-the-spot wet work has been reduced by a wide margin, is favorable to the environmental protection.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of a precast floor slab in the embodiment of the present application;

FIG. 2 is a schematic structural diagram of arrangement of U-shaped steel bars in a precast floor slab in the embodiment of the application;

FIG. 3 is a schematic structural diagram of a precast floor slab in an embodiment of the present application;

FIG. 4 is a schematic view of a part of the structure of the prefabricated floor slab installed and connected with the top of the beam or the wall in the embodiment of the present application;

FIG. 5 is a schematic view of a part of the structure of the prefabricated floor slab in the embodiment of the present application installed and connected to the side of the beam or wall;

FIG. 6 is a schematic view of another embodiment of a prefabricated floor slab according to the present invention;

fig. 7 is a schematic partial structural view of installation and connection between precast floor slabs in the embodiment of the present application.

Reference numerals: the floor slab comprises a floor slab body 1, a first connecting piece 2, a pipeline 3, a first tongue-and-groove 4, a second tongue-and-groove 5, a second connecting piece 6, a third tongue-and-groove 7, a reinforcing piece 8 and a fourth tongue-and-groove 9.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "mounted on" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings to facilitate the description of the application and to simplify the description, and are not intended to indicate or imply that the device or component being referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and therefore, are not to be construed as limiting the application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" or "a plurality" means two or more unless specifically limited otherwise.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the practical limit conditions of the present application, so that the modifications of the structures, the changes of the ratio relationships, or the adjustment of the sizes, do not have the technical essence, and the modifications, the changes of the ratio relationships, or the adjustment of the sizes, are all within the scope of the technical contents disclosed in the present application without affecting the efficacy and the achievable purpose of the present application.

It should be noted that the length of the tongue-and-groove in this application refers to the length of the tongue-and-groove along the side of the floor slab body, and the width of the tongue-and-groove refers to the distance from the side of the floor slab body to the side far from the floor slab body, that is, the width of the tongue-and-groove refers to the width of the tongue-and-groove in the direction perpendicular to the length of the side of the floor slab body.

As shown in fig. 1, the embodiment of the present application provides a prefabricated floor slab, which includes a floor slab body 1, where the floor slab body is provided with a first connecting piece 2 at a side edge where the floor slab body is installed and connected, a pipeline 3 is provided inside the floor slab body, and the floor slab body 1 is provided with a first tongue-and-groove 4 at a joint of the pipeline 3.

In the prefabricated floor slab provided by the embodiment, the first connecting piece 2 can directly fixedly connect the floor slab body 1 with peripheral components such as a beam, a wall or a prefabricated floor slab, steel bars of the prefabricated floor slab do not need to be bound on site, the pipeline 3 is arranged inside the floor slab body 1, the first rabbet 4 is arranged at the joint of the pipeline 3, the pipeline 3 in the prefabricated floor slab can be conveniently spliced and installed with external pipelines, the pipelines in two adjacent prefabricated floor slabs can be conveniently spliced and installed, and local concrete is poured at the first rabbet after the splicing and installation of the pipelines, so that a concrete template does not need to be laid when the prefabricated floor slab is installed, the construction process is simplified, and the construction procedures are reduced. The first connecting pieces are uniformly arranged on the side edge of the floor slab body and extend in the direction far away from the floor slab. Preferably, the first connecting member 2 is a U-shaped or arc-shaped steel bar. The width of the U-shaped or arc-shaped reinforcing steel bar is parallel to the thickness direction of the floor slab body, and the width of the U-shaped or arc-shaped reinforcing steel bar is smaller than the thickness of the floor slab body 1.

The distribution of U-shaped reinforcing bar in precast floor slab is as shown in fig. 2, and the floor slab is under the horizontal installation state, and the part that the U-shaped reinforcing bar is located the floor slab body upside has two effects: firstly, the negative bending moment of the precast floor slab is borne, the bearing capacity of the precast floor slab can be improved, and cracks in a negative bending moment area are reduced; secondly, the connection between the prefabricated floor and the peripheral supporting component can be strengthened. The upper part of the U-shaped steel bar extends into the floor slab body 1 for a certain length, and the length of the U-shaped steel bar extending into the floor slab body is determined according to the negative bending moment born by the periphery of the floor slab. The lower side part of the U-shaped reinforcing steel bar can be fixedly connected with the plate bottom reinforcing steel bar in the floor slab body 1, and can also be separately arranged with the plate bottom reinforcing steel bar of the floor slab body, and when the U-shaped reinforcing steel bar is separately arranged, the length of the lower side part of the U-shaped reinforcing steel bar extending into the floor slab body needs to meet the anchoring requirement. Of course, the U-shaped steel bar can be formed by embedding a part of a rectangular steel bar in the floor slab body and extending a part of the rectangular steel bar out of the floor slab body. U-shaped reinforcing steel bars on two adjacent sides are vertically and alternately arranged at one corner of the floor slab body.

Preferably, as shown in fig. 3, the floor slab body 1 is provided with a second tongue and groove 5 at the side of the pipeline 3 joint. If a large number of pipelines 3 are laid on one side of the floor slab body 1, a second rabbet 5 is arranged on the side edge of the floor slab body 1 where the joints of the pipelines 3 are located, and the second rabbet 5 is wide and long, so that more pipelines 3 can be conveniently spliced and installed.

Specifically, the side edges around the floor slab body 1 are provided with first connecting pieces 2 along the extending direction of the floor slab body. The side edges around the floor slab body 1 are provided with first connecting pieces 2, so that the periphery of the prefabricated floor slab can be conveniently installed and connected with beams, walls or prefabricated floor slabs and other peripheral components.

Preferably, as shown in fig. 6, a fourth tongue-and-groove 9 is provided on a side edge of the floor slab body 1, and more preferably, fourth tongue-and-groove 9 is provided on all peripheral side edges of the floor slab body 1, and a width of the fourth tongue-and-groove 9 is less than or equal to a length of the first connecting member 2 extending out of the floor slab body 1. Wherein the width of the fourth tongue and groove 9 may be relatively small. In the installation and connection process of the prefabricated floor slab, the floor slab body to be installed and the first connecting piece need to be assembled, then concrete is poured at the joint of the first connecting piece, and after the post-poured concrete reaches a certain strength, the installation of the prefabricated floor slab is completed. The fourth tongue-and-groove 9 is arranged on the side edge of the periphery of the floor slab body 1, so that cracks penetrating through the upper surface and the lower surface of a new concrete interface at the installation and connection part of the prefabricated floor slab can be avoided, and the seepage path of the new concrete interface is increased to reduce the water leakage risk.

Specifically, as shown in fig. 4, the first connecting member 2 is used for installing the floor slab body 1 on the top of a beam or a wall, the top of the beam or the wall is provided with a second connecting member 6, and the first connecting member 2 and the second connecting member 6 are used for fixing the floor slab body 1 on the top of the beam or the wall after being matched with each other through poured concrete on the top of the beam or the wall.

This prefabricated floor can carry out fixed connection through simple technology with roof beam or wall, floor body 1 evenly is equipped with a plurality of first connecting pieces 2 at its erection joint side, the concrete number of first connecting piece 2 is decided by the side length of floor body 1 this side, floor body 1 when installing at roof beam or wall, can place the first connecting piece 2 of prefabricated floor at roof beam or wall top, make the edge of floor body be in the upper portion of roof beam or wall, use roof beam or wall top to support prefabricated floor to do not need to use interim braced system to support prefabricated floor. After the prefabricated floor slab is in place, the first connecting piece is placed at the top of the beam or the wall, a small amount of concrete is poured at the top of the beam or the wall, the first connecting piece is buried in the post-poured concrete, and therefore the floor slab body is fixed at the top of the beam or the wall. In order to fix the floor slab body on the top of the beam or the wall more firmly, the second connecting piece is further arranged on the top of the beam or the wall, a small amount of concrete is poured on the top of the beam or the wall, the first connecting piece 2 and the second connecting piece 6 are buried in the post-poured concrete on the top of the beam or the wall, and the connection between the prefabricated floor slab and the beam or the wall can be enhanced. The first connecting piece 2 and the second connecting piece 6 are preferably U-shaped or arc-shaped steel bars, and the first connecting piece 2 and the second connecting piece 6 are arranged in a staggered mode during installation and connection. The beam or the wall can be a prefabricated beam or a prefabricated wall, a cast-in-place beam or a cast-in-place wall and the like.

In another way of installing and fixedly connecting the precast floor slab and the beam or the wall, as shown in fig. 5, a third tongue-and-groove 7 is arranged on a side edge of the floor slab body 1 where the first connecting piece 2 is arranged, a width of the third tongue-and-groove 7 is greater than or equal to a length of the first connecting piece 2 extending out of the floor slab body 1, a second connecting piece 6 is arranged on a side surface of the beam or the wall, a length of the second connecting piece 6 extending out of the beam or the wall is smaller than a width of the third tongue-and-groove 7, and post-cast concrete is matched between the first connecting piece 2 and the second connecting piece 6 at the third tongue-and-groove 7 to fix the floor slab body on the side surface of the beam or the wall.

Specifically, the width of the third tongue-and-groove 7 is slightly greater than the length of the first connecting piece 2 extending out of the floor slab body 1, the second connecting piece 6 is arranged on the side face of the beam or the wall, during installation, a temporary supporting system is arranged on the lower portion of the prefabricated floor slab, the first connecting piece 2 and the second connecting piece 6 are arranged in a staggered mode, then a certain amount of concrete is poured at the positions of the first connecting piece 2, the second connecting piece 6 and the third tongue-and-groove 7, and after the concrete reaches a certain strength, the temporary supporting system is removed. The prefabricated floor slab can be connected with the peripheral supporting beam or the wall on the side surface of the prefabricated floor slab, and no additional floor slab reinforcing steel bars or erecting templates are needed.

In a further optimized technical scheme, as shown in fig. 5, the first connecting member 2 and the second connecting member 6 are U-shaped or arc-shaped steel bars, and at least one reinforcing member 8 is arranged inside the first connecting member 2 and the second connecting member 6 in parallel with the side edge of the floor slab body. In this embodiment, the preferred reinforcing bar of reinforcement 8, first connecting piece 2 and second connecting piece 6 are U-shaped or arc, and when first connecting piece 2 and second connecting piece 6 were installed, first connecting

piece

2 and 6 staggered arrangement of second connecting piece set up two reinforcing bars in first connecting

piece

2 and 6 middle parts of second connecting piece, are favorable to strengthening the joint strength between the two, even pour between the two and connect the back that became invalid, reinforcing bar also can prevent that the floor from falling.

In another scheme of this embodiment, as shown in fig. 7, the first connecting member is used to fix the floor slab body to another floor slab body, the first connecting member is a U-shaped or arc-shaped steel bar, and at least one reinforcing member is arranged inside the first connecting member and parallel to a side edge of the floor slab body. When the prefabricated floor slabs are installed and connected with one another, the first connecting pieces on the two prefabricated floor slabs are arranged in a staggered mode, concrete templates are arranged at the bottoms of the arranged first connecting pieces, and then local concrete is poured, so that the two floor slab bodies are fixedly connected together. In order to ensure that the floor bodies fixedly connected with each other are more reliably fixed, when the first connecting pieces of the adjacent prefabricated floors are arranged, two reinforcing pieces are arranged inside the first connecting pieces of the two prefabricated floors in parallel to the side edges of the floor bodies, reinforcing steel bars are preferably selected by the reinforcing pieces, the connecting strength between the prefabricated floors is increased, and the reinforcing steel bars can also prevent the floors from falling even if the pouring connection between the two reinforcing pieces is failed.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A precast floor slab, characterized in that: the floor slab comprises a floor slab body, wherein a first connecting piece is arranged on the side edge of the floor slab body in mounting connection, a pipeline is arranged in the floor slab body, and a first tongue-and-groove is arranged at the pipeline joint of the floor slab body.

2. A pre-fabricated floor slab as claimed in claim 1, wherein the floor slab body is provided with a second tongue and groove at the side where the pipeline joint is located.

3. The precast floor slab according to claim 1, wherein the first connectors are provided to the peripheral sides of the slab body along the extending direction of the slab body.

4. A prefabricated floor slab according to claim 3, characterised in that the side edges of the slab body are provided with fourth rebates.

5. The precast floor slab of claim 4, wherein the width of the fourth tongue-and-groove is less than or equal to the length of the first connection member protruding out of the floor slab body.

6. A precast floor slab according to any one of claims 1 to 5, wherein the first connectors are U-shaped or arc-shaped reinforcing bars.

7. The precast floor slab according to claim 1, wherein the first connecting member is used for installing the floor slab body on the top of a beam or a wall, the top of the beam or the wall is provided with a second connecting member, and the first connecting member and the second connecting member are used for fixing the floor slab body on the top of the beam or the wall after being matched with concrete.

8. The precast floor slab according to claim 1, wherein the floor slab body is provided with a third tongue and groove at a side where the first connector is provided, a width of the third tongue and groove is greater than or equal to a length of the first connector extending out of the floor slab body, a side surface of a beam or wall is provided with a second connector, a length of the second connector extending out of the beam or wall is less than a width of the third tongue and groove, and the first connector and the second connector are post-cast with concrete at the third tongue and groove for fixing the floor slab body at the side surface of the beam or wall.

9. The precast floor slab according to claim 7 or 8, wherein the first and second connectors are U-shaped or arc-shaped reinforcing bars, and at least one reinforcing member is provided inside the first and second connectors in parallel to the side of the slab body.

10. The precast floor slab according to claim 1, wherein the first connecting member is used for fixing the floor slab body to another floor slab body, the first connecting member is a U-shaped or arc-shaped reinforcing bar, and at least one reinforcing member is provided inside the first connecting member in parallel with the side edge of the floor slab body.