CN211949118U

CN211949118U - Prefabricated floor slab

Info

Publication number: CN211949118U
Application number: CN202020263458.7U
Authority: CN
Inventors: 张司懿; 徐香君; 朱一辛; 王浩宇
Original assignee: Nanjing Forestry University
Current assignee: Nanjing Forestry University
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-11-17
Anticipated expiration: 2030-03-06

Abstract

The utility model discloses a prefabricated floor slab, which comprises a first surface layer, a first sound insulation board layer, a C-shaped wood structural material layer, a heat insulation material, a second sound insulation board layer and a second surface layer; wherein: the first surface layer and the second surface layer are respectively positioned on the uppermost layer and the lowermost layer of the whole structure; the first sound-proof plate layer and the second sound-proof plate layer are respectively paved on the inner surfaces of the first surface layer and the second surface layer; the C-shaped wood structural material layer is arranged between the first sound insulation plate layer and the second sound insulation plate layer; the C-shaped wood structure material layer is composed of a plurality of C-shaped wood structure materials which are fixed side by side and are positioned on the same horizontal plane; the heat insulation material is filled in the groove of the C-shaped wood structure material. The utility model discloses simple structure, processing are succinct, heat preservation is thermal-insulated effectual, the sound insulation performance is good, are the novel prefabricated floor as an organic whole of economic nature and practicality of collection.

Description

Prefabricated floor slab

Technical Field

The utility model belongs to timber structure building field, in particular to precast floor slab.

Background

Chinese patent CN106193297A, a C-shaped wood structural material for building and its preparation method, discloses a material which is made up by using wood single board through the processes of different assembly structures, sizing and press-moulding. The wood-plastic composite board can be used in wood structure buildings, can save a large amount of wood consumption, and can improve the utilization rate of wood resources and save energy due to different assembly structures. Ordinary wooden floor is mostly the veneer structure, not only needs the on-the-spot nail dress of a plurality of parts, and sound insulation performance is poor simultaneously, and the people steps on and can appear the abnormal sound on it, after this kind of mode nail dress, need do amortization again and sound insulation treatment bottom the floor, causes on-the-spot installation cost high, and product quality is difficult to the scheduling problem of accuse, and this kind of mode on-the-spot installation is comparatively loaded down with trivial details, and the sound insulation effect is general, produces the noise simultaneously under to the floor. Meanwhile, the C-shaped wood structural material is a high-quality material, but the application of the C-shaped wood structural material in the aspect of floor slab construction is not provided at present.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure, and sound insulation performance is good, and it is good to keep warm thermal-insulated effect, takes the prefabricated floor of C section bar and acoustic celotex board.

In order to achieve the purpose, the invention adopts the technical scheme that:

a prefabricated floor slab comprises a first surface layer, a first sound insulation board layer, a C-shaped wood structural material layer, a heat insulation material, a second sound insulation board layer and a second surface layer; wherein:

the first surface layer and the second surface layer are respectively positioned on the uppermost layer and the lowermost layer of the whole structure;

the first sound-proof plate layer and the second sound-proof plate layer are respectively paved on the inner surfaces of the first surface layer and the second surface layer;

the C-shaped wood structural material layer is arranged between the first sound insulation plate layer and the second sound insulation plate layer; the C-shaped wood structure material layer is composed of a plurality of C-shaped wood structure materials which are fixed side by side and are positioned on the same horizontal plane;

the heat insulation material is filled in the groove of the C-shaped wood structure material.

Further, the first surface layer and the second surface layer are Laminated Veneer Lumber (LVL).

Further, the first sound insulation board layer and the second sound insulation board layer are damping sound insulation boards.

Further, in the C-shaped wood structure material layer, the C-shaped wood structure material comprises a web plate and flanges positioned on two sides of the web plate; in the length direction, the C-shaped wood structure materials are fixed in an end-to-end mode, in the width direction, flanges of adjacent C-shaped wood structure materials are mutually attached and fixed, and openings of the C-shaped wood structure materials are in the same direction.

Further, the flanges of the adjacent C-shaped wood structural materials are fixed through structural adhesives.

Furthermore, the C-shaped wood structural material is China fir.

Furthermore, the heat insulation material is fixed in a hollow groove of the C-shaped wood structural material through structural adhesive.

Furthermore, the heat insulation material is made of glass wool.

The utility model has the advantages that: the utility model discloses a prefabricated floor is through utilizing the wooden structural material of C type to fill insulation material in the recess, make it have better heat preservation and heat insulation performance. Meanwhile, the sound insulation effect of the whole structure is improved by using the sound insulation board. In addition, the C-shaped wood member has a wide cross section, so that the material consumption can be saved, the mechanical property is excellent, and the C-shaped wood member can be pre-processed in a factory and produced in batch, so that the on-site installation is convenient and quick. The utility model discloses simple structure, processing are succinct, heat preservation is thermal-insulated effectual, the sound insulation performance is good, are the novel prefabricated floor as an organic whole of economic nature and practicality of collection.

Drawings

FIG. 1 is a schematic view of an integral prefabricated floor slab;

FIG. 2 is a schematic illustration of a prefabricated floor slab;

FIG. 3 is a schematic diagram of C-shaped wood structural material after being assembled and filled with heat insulation cotton;

fig. 4 is a schematic view of a single C-shaped wood structural lumber.

Detailed Description

The invention is further explained below with reference to the drawings.

As shown in fig. 1 and 2, the prefabricated floor slab of the present invention comprises a first surface layer 1, a first sound insulation board layer 2, a C-shaped wood structural material layer 3, a thermal insulation material 4, a second sound insulation board layer 5, and a second surface layer 6; wherein:

the first surface layer 1 and the second surface layer 6 are respectively positioned at the uppermost layer and the lowermost layer of the whole structure;

the first sound-proof board layer 2 and the second sound-proof board layer 5 are respectively paved on the inner surfaces of the first surface layer 1 and the second surface layer 6;

the C-shaped wood structural material layer 3 is arranged between the first sound insulation plate layer 2 and the second sound insulation plate layer 5; the C-shaped wood structure material layer 3 is composed of a plurality of C-shaped wood structure materials 31, and the plurality of C-shaped wood structure materials 31 are fixed side by side and are positioned on the same horizontal plane;

the heat insulation material 4 is filled in the groove of the C-shaped wood structural material 31 and is fixed through structural adhesive.

As shown in fig. 4, in the C-type wood structural material layer 3, the C-type wood structural material 31 includes a web 311 and flanges 312 on both sides of the web 311. As shown in fig. 3, the C-shaped wood structural members 31 are connected end to end in the longitudinal direction and fixed by structural adhesive, and the flanges 312 of the adjacent C-shaped wood structural members 31 are attached to each other in the width direction and fixed by structural adhesive, and the openings of the plurality of C-shaped wood structural members 31 are oriented in the same direction.

As preferred technical scheme, first surface layer 1 and second surface layer 6 are laminated veneer lumber LVL, and first soundproof plate layer 2 and second soundproof plate layer 5 are the damping acoustic celotex board, and the material of C type wooden structural material 3 is zhongshan cedar, and the material of insulation material 4 is glass wool.

The utility model discloses the wooden structure material of the building C type that adopts in for the wooden structure material of the building C type that discloses in the Chinese patent application that publication number is CN106193297A, this wooden structure material of C type includes that the cross-section that web, edge of a wing or web, edge of a wing and turn-up are constituteed is the structure of C shape, and web and edge of a wing angle are 90 degrees, and the edge of a wing and turn-up angle are 90 degrees, and the position of buckling will adopt the circular arc transition to handle, and the radius control of circular arc is at 6 ~ 20 mm. The C-shaped wood structural material is of a thin-wall structure, and the specific size is as follows: the length-to-fineness ratio of the C-shaped wood structural material is not more than 150, the wall thickness is 10-100 mm, the height size of a web is not less than 150mm, the width of flanges at two sides is not less than 90mm, and the size of curled edges at two sides is more than 40 mm. The utility model discloses well preferred C type wood structure material of adopting by web, edge of a wing to constitute.

The utility model discloses a prefabricated floor obtains through the preparation of following step:

step 1, firstly, manufacturing a C-shaped wood structural material in a factory;

step 2, gluing in the concave groove of the C-shaped wood structural material, and filling the heat-insulating material in the concave groove;

step 3, assembling and mounting the C-shaped wood structural material to obtain a C-shaped wood structural material layer;

step 4, paving the sound insulation board on the inner side of the surface layer, and tightly attaching the sound insulation board to the surface layer;

and 5, placing a C-shaped wood structural material layer filled with heat insulation materials between the two sound insulation boards.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A prefabricated floor slab, characterized in that: the thermal insulation board comprises a first surface layer (1), a first sound insulation board layer (2), a C-shaped wood structure material layer (3), a thermal insulation material (4), a second sound insulation board layer (5) and a second surface layer (6); wherein:

the first surface layer (1) and the second surface layer (6) are respectively positioned at the uppermost layer and the lowermost layer of the whole structure;

the first sound insulation plate layer (2) and the second sound insulation plate layer (5) are respectively paved on the inner surfaces of the first surface layer (1) and the second surface layer (6);

the C-shaped wood structural material layer (3) is arranged between the first sound insulation plate layer (2) and the second sound insulation plate layer (5); the C-shaped wood structure material layer (3) is composed of a plurality of C-shaped wood structure materials (31), and the C-shaped wood structure materials (31) are fixed side by side and are positioned on the same horizontal plane;

the heat insulation material (4) is filled in the groove of the C-shaped wood structural material (31).

2. The precast floor slab of claim 1, wherein: the first surface layer (1) and the second surface layer (6) are Laminated Veneer Lumber (LVL).

3. The precast floor slab of claim 1, wherein: the first sound insulation board layer (2) and the second sound insulation board layer (5) are damping sound insulation boards.

4. The precast floor slab of claim 1, wherein: in the C-shaped wood structure material layer (3), the C-shaped wood structure material (31) comprises a web (311) and flanges (312) positioned on two sides of the web (311); in the length direction, the C-shaped wood structural materials (31) are fixed in an end-to-end connection mode, in the width direction, flanges (312) of the adjacent C-shaped wood structural materials (31) are mutually attached and fixed, and openings of the plurality of C-shaped wood structural materials (31) are in the same direction.

5. The precast floor slab of claim 4, wherein: the flanges (312) of the adjacent C-shaped wood structural materials (31) are fixed through structural adhesives.

6. A precast floor slab according to claim 1, 4 or 5, characterized in that: the C-shaped wood structural material (31) is made of China fir.

7. The precast floor slab of claim 1, wherein: the heat insulation material (4) is fixed in a hollow groove of the C-shaped wood structural material (31) through structural adhesive.

8. The precast floor slab according to claim 1 or 7, wherein: the heat insulation material (4) is made of glass wool.