CN215670399U

CN215670399U - Prefabricated coincide floor

Info

Publication number: CN215670399U
Application number: CN202120472975.XU
Authority: CN
Inventors: 邹凯伦
Original assignee: Sanneng Integrated Housing Co Ltd
Current assignee: Sanneng Integrated Housing Co Ltd
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2022-01-28
Anticipated expiration: 2031-03-04

Abstract

The utility model relates to a building component, in particular to a prefabricated composite floor slab, which comprises a prefabricated concrete bottom plate, wherein a plurality of through-long prefabricated concrete ribs are arranged on the prefabricated concrete bottom plate, the prefabricated concrete bottom plate and the prefabricated concrete ribs are integrally prefabricated, through-long ribs are arranged in the prefabricated concrete ribs, and the ribs are connected with a reinforcing mesh of the prefabricated concrete bottom plate through connecting reinforcing steel bars. The utility model replaces truss reinforcing steel bars with the precast concrete ribs, simplifies the complex pre-embedding of the precast composite floor slab while saving the cost, solves the problem of upward floating of the truss reinforcing steel bars easily occurring in the production process, facilitates the field construction and greatly improves the production efficiency.

Description

Prefabricated coincide floor

Technical Field

The utility model relates to a building component, in particular to a prefabricated composite floor slab.

Background

At present, the domestic reinforced concrete floor slabs comprise cast-in-place floor slabs and prefabricated floor slabs. The cast-in-place floor slab has good integrity, but needs to be supported on site and then poured with concrete, so the construction period is long, the loss of the template is large, and the cost is high. The prefabricated floor slab does not need on-site formwork erection, the construction period is short, the manufacturing cost is low, but the self weight of the prefabricated component is heavy, the hoisting is difficult, the splicing part of the component is easy to crack, and the integrity is poor.

The prefabricated composite floor slab is a floor slab structure combining prefabrication and cast-in-place concrete. The prefabricated composite floor slab comprises a prefabricated concrete bottom plate and pre-buried truss reinforcing steel bars extending out of the prefabricated concrete bottom plate, during installation, the prefabricated concrete bottom plate is used as a template, concrete is poured on the prefabricated concrete bottom plate, the truss reinforcing steel bars are buried, a composite layer is formed after the concrete is vibrated, and then the prefabricated concrete bottom plate and the composite layer jointly serve as a floor slab working integrally.

The prefabricated composite floor slab integrates the advantages of a cast-in-place floor slab and a prefabricated floor slab, but the prefabricated composite floor slab adopts the truss steel bars, so that the integral steel content is very high, the problems of floating of the pre-buried truss steel bars and the like easily occur in the production process, in addition, the thickness of the prefabricated concrete bottom plate is thinner, the prefabricated concrete bottom plate is easy to crack in the transportation and hoisting process, the site pre-buried cast-in-place construction of the truss steel bars is complicated, and the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems that the existing prefabricated composite floor slab is easy to float up truss steel bars and the site pre-buried cast-in-place construction is complex, and provides the prefabricated composite floor slab which can greatly save the using amount of the steel bars and is relatively simple and rapid in site construction.

In order to solve the technical problem, the utility model provides a prefabricated composite floor slab which comprises a prefabricated concrete bottom plate, wherein a plurality of through-long prefabricated concrete ribs are arranged on the prefabricated concrete bottom plate, the prefabricated concrete bottom plate and the prefabricated concrete ribs are integrally prefabricated, through-long ribs are arranged in the prefabricated concrete ribs, and the ribs are connected with a reinforcing mesh of the prefabricated concrete bottom plate through connecting steel bars.

The utility model uses the through long precast concrete rib to replace the traditional truss reinforcing steel bar, and does not need to arrange the truss reinforcing steel bar, but adopts the through long rib with a simplified structure, thereby greatly saving the reinforcing steel bar consumption of the precast composite floor slab, simultaneously solving the problem of truss floating existing in part of the precast composite floor slab, and simplifying and quickening the site construction process compared with the traditional precast composite slab.

For the intensity of guaranteeing prefabricated coincide floor, the precast concrete rib is followed precast concrete bottom plate's length direction arranges, the precast concrete rib with precast concrete bottom plate's tip marginal distance is no longer than 300mm, and adjacent the interval of precast concrete rib is no longer than 700 mm. Preferably, the lateral centerline spacing between adjacent precast concrete ribs does not exceed 700 mm.

In a specific embodiment, the joints of the precast concrete ribs and the precast concrete base plates are provided with through-length additional steel bars, the additional steel bars are fixedly connected with the steel bar mesh of the precast concrete base plates, and the ribs and the additional steel bars are connected through the connecting steel bars; an upper layer of steel bars and a lower layer of steel bars are arranged in the precast concrete bottom plate, the upper layer of steel bars are bound on the lower layer of steel bars, the additional steel bars are arranged on the lower layer of steel bars, and the additional steel bars are fixedly connected with the lower layer of steel bars; the top of the connecting steel bar is bent and covers the rib, and the bottom of the connecting steel bar is bent and covers the additional steel bar.

Compared with the prior art, the utility model has the beneficial effects that:

1) according to the utility model, the precast concrete ribs are used for replacing the truss reinforcing steel bars, so that the cost is saved, the complex pre-embedding of the precast composite floor slab is simplified, and the production efficiency is greatly improved;

2) the utility model solves the problem of upward floating of the truss steel bar which is easy to appear in the production process, and facilitates the site construction.

Drawings

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

Fig. 1 is a front view structural view of a prefabricated composite floor slab according to a first embodiment of the present invention.

Fig. 2 is a schematic view of the reinforcement structure at 2-2 of fig. 1.

Fig. 3 is a schematic top view of fig. 1 at 2-2.

Fig. 4 is a schematic view of the reinforcing bar structure at 1-1 of fig. 1.

Fig. 5 is a schematic side view of fig. 1 at 1-1.

Fig. 6 is a view showing a connection pattern of reinforcing bars according to a first embodiment of the prefabricated composite floor slab of the present invention.

Detailed Description

The utility model is further described below with reference to specific preferred embodiments, without thereby limiting the scope of protection of the utility model.

For convenience of description, the relative positional relationship of the components, such as: the descriptions of the upper, lower, left, right, etc. are described with reference to the layout directions of the drawings in the specification, and do not limit the structure of the present patent.

As shown in fig. 1 to 6, an embodiment of the prefabricated composite floor slab of the present invention includes a slab surface and a prefabricated concrete bottom slab 1 with rough surfaces arranged on the periphery thereof, wherein ribs 3 are respectively arranged on the periphery of the prefabricated concrete bottom slab 1, and a plurality of through-length prefabricated concrete ribs 2 and a plurality of lifting rings 4 for lifting the floor slab are arranged on the prefabricated concrete bottom slab 1. Precast concrete bottom plate 1 with precast concrete rib 2 is integrative prefabricated to form, go out muscle 3 and rings 4 pre-buried respectively in precast concrete bottom plate 1.

For the intensity of guaranteeing prefabricated coincide floor, precast concrete rib 2 is followed precast concrete bottom plate 1's length direction arranges, precast concrete rib 2 with the distance at precast concrete bottom plate 1's tip edge is no longer than 300mm, and adjacent precast concrete rib 2's side central line interval is no longer than 700 mm.

Set up logical long rib 5 in the precast concrete rib 2, precast concrete rib 2 with the junction of precast concrete bottom plate 1 sets up logical long additional reinforcement 6, rib 5 with connect through connecting reinforcement 7 between the additional reinforcement 6. The top of the connecting steel bar 7 is bent and covers the rib 2, and the bottom of the connecting steel bar 7 is bent and covers the additional steel bar 6.

Set up upper reinforcing bar 8 and lower floor's reinforcing bar 9 in precast concrete bottom plate 1, 8 ligatures of upper reinforcing bar are on lower floor's reinforcing bar 9, additional reinforcing bar 6 is arranged in on lower floor's reinforcing bar 9, just additional reinforcing bar 6 with lower floor's reinforcing bar 9 fixed connection.

The method is completed in a factory by prefabricating, is installed and fixed according to the traditional method after arriving at a site, and is completed by binding a surface layer reinforcing steel bar on site and embedding a wire pipe in situ, so that the concrete is cast in situ.

The above description is only for the preferred embodiment of the present application and should not be taken as limiting the present application in any way, and although the present application has been disclosed in the preferred embodiment, it is not intended to limit the present application, and those skilled in the art should understand that they can make various changes and modifications within the technical scope of the present application without departing from the scope of the present application, and therefore all the changes and modifications can be made within the technical scope of the present application.

Claims

1. The utility model provides a prefabricated coincide floor, includes precast concrete bottom plate, its characterized in that, set up a plurality of prefabricated concrete ribs that lead to long on the precast concrete bottom plate, just the precast concrete bottom plate with the integrative prefabrication of prefabricated concrete rib forms, set up the rib that leads to long in the prefabricated concrete rib, the rib with the reinforcing bar net of precast concrete bottom plate passes through the connecting reinforcement and connects.

2. The prefabricated composite floor slab of claim 1, wherein the precast concrete ribs are arranged in a length direction of the precast concrete floor slab.

3. The prefabricated composite floor slab of claim 1, wherein the precast concrete ribs are spaced from the end edges of the precast concrete floor slab by a distance of not more than 300 mm.

4. The prefabricated composite floor slab of claim 1, wherein a distance between adjacent precast concrete ribs does not exceed 700 mm.

5. The prefabricated composite floor slab of claim 4, wherein a lateral centerline spacing between adjacent precast concrete ribs does not exceed 700 mm.

6. The prefabricated composite floor slab as claimed in claim 1, wherein an additional reinforcing bar is provided at a joint of the precast concrete rib and the precast concrete floor slab, the additional reinforcing bar is fixedly connected to the reinforcing mesh of the precast concrete floor slab, and the rib and the additional reinforcing bar are connected by the connecting reinforcing bar.

7. The prefabricated composite floor slab of claim 6, wherein upper-layer steel bars and lower-layer steel bars are arranged in the precast concrete bottom slab, the upper-layer steel bars are bound on the lower-layer steel bars, the additional steel bars are arranged on the lower-layer steel bars, and the additional steel bars are fixedly connected with the lower-layer steel bars.

8. The prefabricated composite floor slab of claim 6, wherein the top of the connection bars is bent to cover the ribs, and the bottom of the connection bars is bent to cover the additional bars.