CN204401844U - Easy-to-install laminated floor slab - Google Patents

Abstract

The utility model provides an easy-to-install laminated floor slab, which is not only convenient for transportation and has low damage rate, but also has light weight, low cost, high rigidity and good seismic performance. A laminated floor slab that is easy to install. The laminated floor slab includes a prefabricated slab and a cast-in-place concrete layer. The bottom of the prefabricated slab is provided with transverse reinforcement composed of ordinary steel bars or prestressed steel bars along its width direction. One end of the transverse reinforcement is embedded in the prefabricated slab. The other end protrudes from the side of the prefabricated slab, over which the cast-in-place concrete covers the transverse reinforcement.

Description

Laminate floors for easy installation

technical field

The utility model relates to the technical field of building components, in particular to an easy-to-install laminated floor.

Background technique

In recent years, the industrialized engineering construction model marked by standardization and industrialization requires factory-based prefabrication of engineering construction, and on-site mechanized assembly and coordination. The operation of the connection is inconvenient and the integrity is poor, which affects the development of prefabricated buildings.

In order to meet the development goals of prefabricated buildings, including steel structure component prefabrication technology, reinforced concrete component prefabrication technology, concrete and steel composite component technology, and on-site assembly and connection technology of these building structural components, a mixed structure building composed of different material components has been initially formed; However, because the design and manufacturing technology of some structural components, as well as the overall assembly and connection structure of on-site mechanization are unreasonable, the research and development is not enough, and there are many problems that need to be improved urgently. Therefore, it is necessary to vigorously develop prefabricated and steel structure buildings.

Prefabricated laminated floor slabs include truss laminated slabs, PK slabs and other plate types; truss laminated slabs are non-prestressed slabs, with small spans, heavy weight, and inconvenient on-site installation; PK slabs need to place transverse reinforcement on site, which is inconvenient for construction and installation.

Utility model content

The purpose of the utility model is to provide an easy-to-install laminated floor slab, which is not only convenient for transportation and has low damage rate, but also has light weight, low cost, high rigidity and good seismic performance.

In order to achieve the above object, the utility model adopts the following scheme:

An easy-to-install laminated floor slab, which includes a prefabricated slab and a cast-in-place concrete layer. In the prefabricated slab, the other end protrudes from the side of the prefabricated slab, and the cast-in-place concrete is placed above the prefabricated slab to cover the transverse reinforcement.

In the preferred solution of the above-mentioned easy-to-install laminated floor slab, the prefabricated slab is a solid reinforced concrete or hollow reinforced concrete prefabricated slab.

In the preferred solution of the above-mentioned laminated floor slab that is easy to install, the upper surface of the prefabricated slab is provided with parallel and spaced full-length grooves along the length direction of the prefabricated slab; and full-length convex ribs are formed between the full-length grooves.

In the preferred solution of the above-mentioned laminated floor that is easy to install, the cross-sectional shape of the long groove is rectangular, semicircular, trapezoidal or inverted trapezoidal.

The preferred solution for the above-mentioned laminated floor slab that is easy to install, the bottom of one side of the solid reinforced concrete prefabricated slab has connecting ribs along its length direction, the other side of the solid reinforced concrete precast slab has concrete pouring grooves set along its length direction, and the horizontal steel bars are pre-embedded One end in the prefabricated panel is adjacent to the connecting rib.

The preferred solution for the above-mentioned laminated floor slab that is easy to install, the hollow reinforced concrete prefabricated slab includes a bottom slab reinforced concrete layer and a porous concrete layer; the porous concrete layer is provided with a plurality of long through holes at intervals in the longitudinal direction; On both sides of the concrete layer, the prefabricated hollow slab is formed with post-casting parts.

In the preferred solution for the above-mentioned laminated floor that is easy to install, prestressed steel bars for the floor are provided in parallel intervals along the length direction of the laminated floor in the reinforced concrete layer of the floor, and transverse reinforcements are arranged in parallel and intervals along the width of the laminated floor.

In the preferred solution of the above-mentioned laminated floor slab that is easy to install, the end of the transverse steel bar protruding from the side of the prefabricated slab is bent upward in the vertical direction.

The beneficial effects of the utility model:

It can better realize the prefabricated production and on-site assembly and connection of laminated floor slabs; this makes the building have excellent earthquake resistance, accurate structural component dimensions, improved building quality, long service life and durability, maximizing the improvement of the working environment for operators and shortening the construction period. shorten the construction period and reduce the project cost.

Description of drawings

FIG. 1 is a perspective schematic diagram of an easy-to-install laminated floor slab in Embodiment 1. FIG.

Fig. 2 is a schematic front view of the easy-to-install laminated floor slab of Embodiment 1.

Fig. 3 is a schematic side view of the easy-to-install laminated floor of Embodiment 1.

FIG. 4 is a schematic top view of the easy-to-install laminated floor slab of Embodiment 1. FIG.

FIG. 5 is a schematic diagram of interconnection of laminated floor slabs in Embodiment 1. FIG.

Fig. 6 is a schematic perspective view of the easy-to-install laminated floor of Embodiment 2.

Fig. 7 is a schematic side view of the easy-to-install laminated floor of Embodiment 2.

Fig. 8 is a schematic top view of the easy-to-install laminated floor slab of Embodiment 2.

Fig. 9 is a schematic front view of the easy-to-install laminated floor slab of Embodiment 2.

Fig. 10 is a three-dimensional schematic diagram of a laminated floor slab that is easy to install in Embodiment 3.

Fig. 11 is a schematic top view of the easy-to-install laminated floor of Embodiment 3.

Fig. 12 is a schematic front view of the laminated floor slab that is easy to install in Embodiment 3.

Fig. 13 is a schematic top view of the interconnection of two superimposed floor slabs that are easy to install.

Fig. 14 is a schematic front view of the interconnection of two superimposed floor slabs that are easy to install.

In the figure 1. Transverse reinforcement, 2. Long groove, 3. Long convex rib, 4. Prestressed steel bar of prefabricated slab, 5. Connecting rib, 6. Concrete pouring groove, 7. Porous concrete layer, 8. Bottom plate reinforcement Concrete layer, 9, long through hole, 10, base plate prestressed reinforcement, 11, horizontal reinforcement, 12, vertical reinforcement, 13, pouring concrete layer on site.

Detailed ways

In order to facilitate those skilled in the art to better understand the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The following is only exemplary and does not limit the protection scope of the utility model.

Example 1

With reference to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, accompanying drawing 13 and accompanying drawing 14, a kind of laminated floor slab that is easy to install, laminated floor slab comprises prefabricated slab and cast-in-place concrete layer 13 .

The bottom of the prefabricated slab is provided with prefabricated slab prestressed steel bars 4 along its length direction; the bottom of the prefabricated slab is provided with transverse steel bars 1 composed of ordinary steel bars or prestressed steel bars along its width direction. The side of the prefabricated slab; the cast-in-place concrete layer 13 is located above the prefabricated slab to cover the transverse reinforcement 1 made of ordinary steel bars or prestressed steel bars.

The bottom of one side of the prefabricated slab has a connecting rib 5 along its length direction, the other side of the solid reinforced concrete precast slab has a concrete pouring groove 6 arranged along its length direction, and the end of the transverse steel bar 1 embedded in the prefabricated slab is close to the connecting rib 5 .

Considering the convenience of construction, the transverse reinforcement 1 protruding from the side of the prefabricated slab is bent upwards in the vertical direction.

Considering the structure and service life, the reinforcement mesh formed by the vertical reinforcement bars 12 and the horizontal reinforcement bars 11 is set along the cast-in-place concrete layer 13 .

In this embodiment, the cross-sectional shape of the long groove 2 is a dovetail groove.

A construction method for the easy-to-install laminated floor, characterized by comprising the following steps:

(1) On the prefabricated panel production line, ordinary steel bars or tensioned prestressed steel bars are laid, and precast panels are formed with forming equipment;

(2) After the reinforced concrete of the prefabricated slab reaches a certain strength, the mold is released and transported to the construction site;

(3) Hoist the prefabricated panels in place;

(4) Laying of embedded pipelines;

(5) laying reinforcement for the concrete layer poured on site;

(6) Concrete is poured above the prefabricated slab to form a cast-in-place concrete layer.

Example 2

With reference to accompanying drawings 6 to 9, the prefabricated slab is a hollow reinforced concrete prefabricated slab, which includes a bottom plate reinforced concrete layer 8 and a porous concrete layer 7; the bottom plate prestressed steel bars 10 are arranged at parallel intervals along the length direction of the laminated floor slab in the bottom plate reinforced concrete layer 8, Horizontal steel bars 1 composed of ordinary steel bars or prestressed steel bars are arranged at parallel intervals along the width of the laminated floor. It is located above the reinforced concrete layer 8 of the bottom plate, and a plurality of long through holes 9 are arranged at longitudinal intervals; the porous concrete layer 7 is recessed on the side of the reinforced concrete layer 8 of the bottom plate to form connecting ribs 5; the surface of the porous concrete layer 7 is along the length direction of the prefabricated slab There are long grooves 2 arranged in parallel at intervals; long ribs 3 are formed between the long grooves 2 .

The cross-section of the long groove 2 is a rectangular structure, and the others are the same as in the first embodiment.

Example 3

Referring to accompanying drawings 10 to 12, the cross-section of the long groove 2 is a planar structure, and the cross-section of the long rib 3 is an arc-shaped structure, and the others are the same as in the second embodiment.

The above only describes the basic principle and preferred implementation of the utility model, and those skilled in the art can make many changes and improvements according to the above description, and these changes and improvements should belong to the protection scope of the utility model.

Claims (8)

1. A laminated floor slab that is easy to install, the laminated floor slab includes a prefabricated slab and a cast-in-place concrete layer, and is characterized in that: the bottom of the prefabricated slab is provided with transverse reinforcements made of ordinary steel bars or prestressed reinforcements along its width direction, and one end of the transverse reinforcements is pre-stressed. Buried in the prefabricated slab, the other end protrudes from the side of the prefabricated slab, and the cast-in-place concrete is placed above the prefabricated slab to cover the transverse reinforcement. 2. The easy-to-install laminated floor slab according to claim 1, wherein the prefabricated slab is a solid reinforced concrete or hollow reinforced concrete prefabricated slab. 3. The easy-to-install laminated floor slab according to claim 2 is characterized in that: the upper surface of the prefabricated slab is provided with parallel and spaced through-length grooves along the length direction of the prefabricated slab; Convex. 4. The easy-to-install laminated floor slab according to claim 3, wherein the cross-sectional shape of the long groove is rectangular, semicircular, trapezoidal or inverted trapezoidal. 5. The easy-to-install composite floor according to claim 2 or 3, characterized in that: the bottom of one side of the solid reinforced concrete precast slab has a connecting rib along its length, and the other side of the solid reinforced concrete precast slab has a connecting rib along its length. The direction of the concrete pouring groove is set, and the end of the transverse steel bar embedded in the prefabricated slab is close to the connecting rib. 6. The easy-to-install composite floor slab according to claim 2 or 3 is characterized in that: the hollow reinforced concrete prefabricated slab includes a bottom plate reinforced concrete layer and a porous concrete layer; the porous concrete layer is longitudinally spaced with a plurality of long through holes; Both sides or one side of the concrete layer are recessed on both sides of the reinforced concrete layer of the bottom plate, so that the prefabricated hollow slab forms a post-casting part. 7. The easy-to-install laminated floor according to claim 6, characterized in that: in the reinforced concrete layer of the bottom slab, the prestressed steel bars of the bottom slab are arranged at parallel intervals along the length direction of the laminated floor, and the transverse steel bars are arranged at parallel intervals along the width of the laminated floor. 8. The easy-to-install laminated floor slab according to claim 1 or 2 or 3 or 4, characterized in that: the end of the transverse reinforcement protruding from the side of the prefabricated slab is bent upwards in the vertical direction.