CN214220176U

CN214220176U - Coincide floor and assembled building structure

Info

Publication number: CN214220176U
Application number: CN202023059596.2U
Authority: CN
Inventors: 吴敦军; 汪凯; 王流金
Original assignee: Nanjing Yangtze River Urban Architectural Design Co Ltd
Current assignee: Nanjing Yangtze River Urban Architectural Design Co Ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-09-17
Anticipated expiration: 2030-12-17

Abstract

The utility model discloses a coincide floor and assembled building structure belongs to building prefabricated component technical field. The utility model discloses a composite floor slab, which comprises a bottom plate formed by pouring concrete, wherein a plurality of stressed steel bars arranged along a first direction are arranged in the bottom plate, and two ends of the stressed steel bars are protruded out of the bottom plate; the array is provided with a plurality of light board on the side of going up of bottom plate, and the degree of depth of the last side of the downside embedding bottom plate of light board is 3 ~ 20mm, and the last side of light board exposes in the last side setting of bottom plate, therefore the utility model discloses a whole thickness of coincide floor is showing not increasing, when having alleviateed the weight of coincide floor, has ensured that the coincide floor has higher bulk strength.

Description

Coincide floor and assembled building structure

Technical Field

The utility model relates to a building prefabricated component technical field, more specifically say, relate to a coincide floor and assembled building structure.

Background

At present, in an assembly type concrete structure system, a composite floor slab is mostly adopted as the floor slab, and the composite floor slab is an assembly integral floor slab formed by laminating prefabricated slabs and cast-in-place reinforced concrete layers. The composite floor slab has good integrity, the upper and lower surfaces of the slab are smooth, the decoration of a finish coat is convenient, and the composite floor slab is suitable for high-rise buildings and large-bay buildings with higher requirement on the integral rigidity.

When the composite floor slab is adopted in the large-span floor slab, the thickness of the composite floor slab needs to be obviously increased, so that the stress performance of the floor slab is improved, and the stability of a building structure is improved. However, simply increasing the thickness of the stacked floor is not conducive to structural stress, and results in increased construction costs of the prefabricated building. As a solution, the related art mostly adopts a composite floor slab with a hollow structure, or places a light plate in the composite floor slab, so that the overall strength of the composite floor slab is improved, and the weight of the composite floor slab is reduced.

For example, chinese patent application No. 2013205378830 discloses a T-shaped longitudinal ribbed honeycomb composite floor slab, which is composed of a lower reinforced concrete layer, upper longitudinal and transverse intersecting ribbed concrete layers and side-type steel plates, the upper longitudinal and transverse intersecting ribbed concrete layers are respectively provided with transverse concrete ribs, longitudinal concrete ribs and honeycomb holes formed by intersecting the transverse concrete ribs and the longitudinal concrete ribs at intervals, the transverse concrete ribs are provided with upper transverse steel bars, the longitudinal concrete ribs are T-shaped ribs, and light filling blocks are arranged in the honeycomb holes; the two side profile steel plates are symmetrically and longitudinally arranged and are respectively connected with two ends of the lower-layer transverse steel bar and the upper-layer transverse steel bar, the two side profile steel plates and the reinforced concrete lower layer and the longitudinal and transverse crossed rib frame concrete upper layer are integrated into a prefabricated bottom plate, and a cast-in-place concrete layer is poured on the prefabricated bottom plate to form the laminated floor slab.

However, the light filling blocks are directly arranged on the bottom plate of the reinforced concrete structure, and then the concrete is poured to form the composite floor slab, so that the thickness of the composite floor slab is increased, the weight of the composite floor slab is increased, and the structural strength of the composite floor slab is reduced.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The utility model aims to overcome the thick not enough that makes coincide floor self weight higher of the coincide floor thickness that has the light filling block among the prior art, provide a coincide floor, when aiming at improving coincide floor bulk strength, lighten the weight of coincide floor.

Another object of the utility model is to provide a structure is more stable assembled building structure.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a composite floor slab, which comprises a bottom plate formed by pouring concrete, wherein a plurality of stressed steel bars arranged along a first direction are arranged in the bottom plate, and two ends of the stressed steel bars protrude out of the bottom plate; the light-weight plate is characterized in that a plurality of light-weight plates are arranged on the upper side face of the bottom plate in an array mode, the depth of the lower side face of each light-weight plate embedded into the upper side face of the bottom plate is 3-20 mm, and the upper side face of each light-weight plate is exposed out of the upper side face of the bottom plate.

Furthermore, the center distance between two light plates which are arranged in adjacent positions in the first direction is not more than 600mm and is not less than the length of the light plates in the first direction according to the orthogonal grid array.

Further, the light plate is square, rectangular or rhombic.

Further, the light plate is an XP plate or an ALC plate.

Furthermore, a connecting structure is arranged between the light plate and the bottom plate; and the connecting structure is formed in the process that the light plate is dented on the surface of the initially set concrete.

According to the fabricated building structure, the floor slab bottom structure of the fabricated building structure is formed by splicing a plurality of laminated floor slabs, and the floor slab bottom structure is provided with the floor slab upper layer structure formed by pouring concrete.

Further, both ends of the composite floor slab in the second direction are respectively placed on different beams, and the distance between two composite floor slabs which are adjacent in the first direction is not more than 10 mm.

Furthermore, be in two of adjacent position on the first direction be provided with a plurality of transverse reinforcement between the coincide floor, transverse reinforcement's both ends are located two respectively on the coincide floor, transverse reinforcement's length is not less than 250 mm.

Furthermore, 3 auxiliary steel bars are arranged on the transverse steel bars at equal intervals along the first direction, and the positions of the auxiliary steel bars in the middle position correspond to the positions of gaps of the two laminated floors in the adjacent positions along the first direction; the auxiliary reinforcing steel bars are bundled with at least two of the plurality of transverse reinforcing steel bars.

Further, a plurality of upper-layer steel bars are arranged in the floor slab upper-layer structure, the upper-layer steel bars are arranged along the second direction, and the upper-layer steel bars are arranged along the first direction.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the utility model discloses a composite floor slab, which comprises a bottom plate formed by pouring concrete, wherein a plurality of stressed steel bars arranged along a first direction are arranged in the bottom plate, and two ends of the stressed steel bars are protruded out of the bottom plate; the array is provided with a plurality of light board on the side of going up of bottom plate, and the degree of depth of the last side of the downside embedding bottom plate of light board is 3 ~ 20mm, and the last side of light board exposes in the last side setting of bottom plate, therefore the utility model discloses a whole thickness of coincide floor is showing not increasing, when having alleviateed the weight of coincide floor, has ensured that the coincide floor has higher bulk strength.

(2) The utility model discloses in, the connection structure between light board and the bottom plate forms in the in-process of light board indent in the concrete surface of initial set, therefore compare in placing the scheme that light board was pour earlier, the utility model discloses a light board can not take place the come-up at concrete placement's in-process, has improved the efficiency of coincide floor manufacturing process.

(3) The utility model discloses an assembly type building structure, the floor bottom structure is formed by splicing a plurality of superposed floors; the two ends of the composite floor slab in the second direction are respectively placed on different beams, and the distance between two adjacent composite floor slabs in the first direction is not more than 10 mm. Because be provided with the light board of a plurality of on the coincide floor, can alleviate the weight of floor, promote the floor sound insulation effect, reduce cast in situ's wet operation simultaneously, therefore the utility model discloses an assembly type building structure is applicable to in the building of large-span.

Drawings

Fig. 1 is a schematic structural view of a composite floor slab of the present invention;

fig. 2 is a schematic structural diagram of the prefabricated building structure of the present invention.

The reference numerals in the schematic drawings illustrate: 1. a base plate; 2. a light board; 3. transverse reinforcing steel bars; 4. auxiliary reinforcing steel bars; 5. pouring a layer; 6. Upper layer steel bars; 7. and (5) stressed reinforcing steel bars.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

The structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the achievable purpose. In addition, the terms "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

Referring to fig. 1, the composite floor slab of the present embodiment includes a bottom plate 1 formed by pouring concrete, and a plurality of stressed steel bars 7 are disposed in the bottom plate 1; wherein, a plurality of atress reinforcing bar 7 can be arranged along first direction, and the both ends of atress reinforcing bar 7 can outstanding setting in bottom plate 1. When the composite floor slab of the present embodiment is applied to a fabricated building, a plurality of composite floor slabs may be disposed, and the stress steel bars 7 are used to realize connection between the composite floor slabs located at adjacent positions in the second direction.

It should be noted that the first direction referred to in this embodiment may be an x direction identified in fig. 1 and 2, the second direction may be a y direction identified in fig. 1, and the third direction may be a z direction identified in fig. 2.

In addition, the upper side of the bottom plate 1 of the composite floor slab in this embodiment may be provided with a plurality of light boards 2. The light weight plate 2 may be embedded in the bottom plate 1, that is, the lower side of the light weight plate 2 is embedded in the upper side of the bottom plate 1, and the upper side of the light weight plate 2 may be exposed out of the upper side of the bottom plate. In order to improve the connection strength between the light weight plate 2 and the bottom plate 1, the depth of the lower side surface of the light weight plate 2 embedded into the upper side surface of the bottom plate 1 may be 3-20 mm, for example, 5mm, or 10mm, or 15 mm.

As a further optimization of the present embodiment, the plurality of light plates 2 disposed on the same base plate 1 may be arranged in an orthogonal grid pattern, that is, the centers of the plurality of light plates 2 may be located at grid point positions of the orthogonal grid pattern. Meanwhile, in order to improve the overall stability of the composite floor slab and reduce the weight of the composite floor slab, the center distance between two light boards 2 located adjacent to each other in the first direction may not be greater than 600mm, and the center distance between two light boards 2 located adjacent to each other in the first direction may not be smaller than the length of the light boards 2 in the first direction.

The light weight plate 2 can be in a square structure, a rectangular structure or a diamond structure, and the light weight plate 2 can also be in other shapes. The light weight plate 2 may be specifically an XP plate, and may also be an ALC plate, it should be noted that the XP plate may be made of an extruded polystyrene foam plastic material commonly used in the related field, and the ALC plate may be made of an autoclaved light weight concrete material commonly used in the related field, so related contents are not described in this embodiment again.

The connection structure between the light weight plates 2 and the bottom plate 1 can be formed in the process that the light weight plates are dented on the surface of the initial setting concrete, namely, after the concrete of the bottom plate 1 is vibrated and initially set, the light weight plates 2 are pressed on the upper surface of the bottom plate 1, so that the connection between the bottom plate 1 and the light weight plates 2 is completed in the setting process of the concrete, and compared with the scheme that the light weight plates 2 are placed before concrete pouring, the light weight plates 2 of the embodiment cannot float upwards under the influence of buoyancy in the concrete pouring process, and the efficiency of the laminated floor slab manufacturing process is improved.

This embodiment still provides an assembly type structure, and this assembly type structure's floor substructure is formed by the coincide floor concatenation of this embodiment of a plurality of, and floor substructure is formed with the floor superstructure that concrete placement formed in the top of third direction.

Specifically, two ends of the composite floor slab in the second direction are respectively placed on different beams, and the distance between two adjacent composite floor slabs in the first direction is not more than 10 mm.

Simultaneously, be in setting up between two coincide floorslabs of adjacent position on the first direction and can have a plurality of transverse reinforcement 3, the both ends of transverse reinforcement 3 are located two coincide floorslabs respectively, and transverse reinforcement 3's length is not less than 250mm to improve this embodiment assembly type structure's stability.

In addition, 3 auxiliary reinforcing bars 4 may be equidistantly disposed along the first direction on the transverse reinforcing bars 3. Wherein, the position of the auxiliary steel bar 4 in the middle position corresponds to the position of the gap between two laminated floors in the adjacent position in the first direction, and the auxiliary steel bar 4 is at least bundled with two of the plurality of transverse steel bars 3, thereby further improving the stability of the fabricated building structure of the present embodiment.

A plurality of upper reinforcing steel bars 6 can be arranged in the pouring layer 5 of the upper layer structure of the floor slab, the upper reinforcing steel bars 6 can be arranged along the second direction, and the upper reinforcing steel bars 6 can be arranged along the first direction.

The concrete construction method of the fabricated building structure of the embodiment comprises the following steps:

the first step is as follows: stressed steel bar 7 for binding composite floor slab on bench formwork

The second step is that: pouring concrete into the bench formwork and completing vibration;

the third step: after the concrete in the bench formwork is initially set, the light plate 2 is pressed and recessed in the surface of the concrete by not less than 3 mm;

the fourth step: after the composite floor slab is hoisted on a construction site, arranging transverse steel bars 3 at the joints of the composite floor slab, wherein the length of each transverse steel bar 3 is not less than 250mm, and the space between every two adjacent transverse steel bars 3 is 200 mm;

the fifth step: arranging 3 auxiliary steel bars 4 on the transverse steel bars 3, and binding the auxiliary steel bars 4 with the transverse steel bars 3;

and a sixth step: and binding the upper layer of steel bars 6, pouring upper layer concrete to form the prefabricated building structure, and forming the prefabricated building structure after the concrete is solidified.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. A composite floor slab, its characterized in that: the concrete pouring device comprises a bottom plate formed by pouring concrete, wherein a plurality of stressed steel bars arranged along a first direction are arranged in the bottom plate, and two ends of each stressed steel bar protrude out of the bottom plate; the light-weight plate is characterized in that a plurality of light-weight plates are arranged on the upper side face of the bottom plate in an array mode, the depth of the lower side face of each light-weight plate embedded into the upper side face of the bottom plate is 3-20 mm, and the upper side face of each light-weight plate is exposed out of the upper side face of the bottom plate.

2. A composite floor slab as claimed in claim 1, wherein: the center distance between two adjacent light plates in the first direction is not more than 600mm and not less than the length of the light plates in the first direction according to the orthogonal grid array.

3. A composite floor slab as claimed in claim 2, wherein: the light plate is square, rectangular or rhombic.

4. A composite floor slab as claimed in claim 1, wherein: the light plate is an XP plate or an ALC plate.

5. A composite floor slab as claimed in claim 1, wherein: a connecting structure is arranged between the light plate and the bottom plate; and the connection structure is formed in the process that the light plate is dented on the surface of the initially set concrete.

6. A fabricated building structure, characterized by: the floor bottom structure of the fabricated building structure is formed by splicing a plurality of laminated floors as claimed in any one of claims 1 to 5, and a concrete poured floor upper layer structure is formed on the floor bottom structure.

7. A fabricated building structure according to claim 6, wherein: the two ends of the composite floor slab in the second direction are respectively placed on different beams, and the distance between two adjacent composite floor slabs in the first direction is not more than 10 mm.

8. A fabricated building structure according to claim 7, wherein: be in two of adjacent position on the first direction be provided with a plurality of transverse reinforcement between the coincide floor, transverse reinforcement's both ends are located two respectively on the coincide floor, transverse reinforcement's length is not less than 250 mm.

9. A fabricated building structure according to claim 8, wherein: 3 auxiliary steel bars are arranged on the transverse steel bars at equal intervals along the first direction, and the position of the auxiliary steel bar in the middle corresponds to the position of a gap between two adjacent laminated floors in the first direction; the auxiliary reinforcing steel bars are bundled with at least two of the plurality of transverse reinforcing steel bars.

10. A fabricated building structure according to claim 6, wherein: a plurality of upper-layer steel bars are arranged in the upper-layer structure of the floor slab, the upper-layer steel bars are arranged along the second direction, and the upper-layer steel bars are arranged along the first direction.