CN206360172U - A kind of assembled subtracts vermex concrete laminated floor slab - Google Patents

Abstract

The utility model discloses an assembled sound-reducing concrete laminated floor slab, which is composed of a prefabricated layer and a cast-in-place layer; the prefabricated layer is composed of a reinforced concrete floor prefabricated layer on the bottom layer and a sound-reducing layer located thereon; Reinforced trusses are arranged on the sound-reducing layer, and the reinforced trusses are embedded in the cast-in-place layer by pouring concrete on the sound-reducing layer at the construction site, and combined with the prefabricated layer to form an integral floor slab. In the utility model, the prefabricated layer of the reinforced concrete floor, the sound insulation layer and the cast-in-place layer are made in layers, so that the combination of prefabrication and cast-in-place is easy to operate and convenient for construction. It can be endowed with functions such as floor enclosure and sound insulation, and can be widely used. In prefabricated buildings, it has a good application prospect.

Description

A prefabricated sound-reducing concrete laminated floor slab

technical field

The utility model belongs to the technical field of building construction, in particular to an assembled sound-reducing concrete laminated floor slab.

Background technique

With the current implementation of my country's urbanization and new socialist countryside projects, the construction industry has ushered in opportunities for development, transformation and upgrading. The traditional construction method has the disadvantages of serious environmental pollution, large amount of wet work on site, and low work efficiency. Prefabricated buildings can significantly improve building performance and quality, effectively control costs and project progress, etc. by integrating technical resources such as construction, management and design. Prefabricated buildings have been valued due to their own advantages. A lot of research has been carried out at home and abroad and fruitful research results have been achieved. It will be an important direction for the future development of the construction industry. As one of the components of the building structure, the floor slab plays multiple functions such as enclosure, load-bearing and structure in the building structure. The traditional integral cast-in-place floor slab has the advantages of large plane rigidity, good integrity and easy to meet the use functions, but has the disadvantages of large slab thickness, poor economy, more on-site operations, slow progress and low efficiency. As a new type of panel in prefabricated structures, prefabricated laminated slabs have the advantages of light weight, high quality and high assembly rate, but there are also problems such as impermeability and sound insulation, which limit their application in special prefabricated buildings . In view of the current prefabricated laminated floor slabs facing problems such as single product types and functions, poor sound insulation effect and incomplete auxiliary functions, it is proposed to develop a new type of prefabricated prefabricated sound-insulating concrete laminated floor slab to make up for the existing prefabricated building laminated floor. The performance of the floor is insufficient, which promotes the development of prefabricated buildings.

Utility model content

The purpose of the utility model is to provide an assembled sound-reducing concrete composite floor slab with high assembly rate, good sound insulation effect and strong impermeability.

In order to solve the above-mentioned technical problems, the prefabricated sound-insulating concrete laminate floor slab provided by the utility model includes a prefabricated layer and a cast-in-place layer; The sound insulation layer is composed of steel trusses arranged on the sound insulation layer, and the steel trusses are embedded in the cast-in-place layer by pouring concrete on the sound insulation layer at the construction site, and combined with the prefabricated layer to form an integral floor slab.

The steel bar truss consists of the lower chord reinforcement located in the prefabricated layer of the reinforced concrete floor, the upper chord reinforcement embedded in the cast-in-place layer during cast-in-place, and the web reinforcement that runs through the sound-reducing layer and is connected with the lower chord reinforcement and the upper chord reinforcement composition.

The side walls of the prefabricated layer of the reinforced concrete floor slab are reserved with overlapping steel bars.

The prefabricated layer of the reinforced concrete floor slab is prefabricated by steam-cured concrete.

The sound-reducing layer is poured from fine stone concrete mixed with polyacrylate polymer emulsion and elastic-plastic material particles.

The elastic-plastic material particles are one or more of rubber particles treated with siloxane coupling agent, silicone rubber, polymer organic foam particles and silica gel particles.

The web steel bars can be one or more of straight straight bars, V-shaped bent bars, W-shaped bent bars, and wave-shaped bent bars.

The beneficial effects of the utility model are:

1. The utility model has the advantages of high assembly rate, sound insulation reduction, impermeability and strong integrity, and is suitable for prefabricated concrete structure systems.

2. The sound insulation layer of the utility model is poured with fine stone concrete mixed with polyacrylate polymer emulsion and elastic-plastic material particles, which endows the building floor with good sound insulation and impermeability properties.

3. The prefabricated layer of the reinforced concrete floor of the utility model, the sound insulation layer and the cast-in-place layer are made in layers, so that the combination of prefabrication and cast-in-place is easy to operate and convenient for construction. Applied in prefabricated buildings, it has a good application prospect.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic cross-sectional view of the utility model;

Fig. 3 is the schematic diagram of steel bar truss structure in the utility model;

Among them: 1- reinforced concrete floor precast layer; 2- sound insulation layer; 3- cast-in-place layer; 4- upper chord reinforcement; 5- lower chord reinforcement; 6- web reinforcement; 7- surface stress reinforcement; 8- structure Reinforcement bar; 9-lapped steel bar; 10-elastic-plastic material particles.

detailed description

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1 and Figure 2, the prefabricated sound-insulating concrete composite floor slab provided by the utility model includes a prefabricated layer and a cast-in-place layer 3; the prefabricated layer is composed of the bottom reinforced concrete floor precast layer 1 and It consists of a sound-insulating layer 2 on it; the sound-insulating layer 2 is arranged with steel bar trusses, and the steel bar trusses are embedded in the cast-in-place layer 3 by pouring concrete on the sound-insulating layer 2 at the construction site, and Combined with the prefabricated layer to form an integral floor, the reinforced concrete floor prefabricated layer 1 is prefabricated by steam-cured concrete, and the side wall is reserved with overlapping steel bars 9, and the concrete cured by steam can realize cement moisture in a short time. The chemical reaction endows the reinforced concrete floor prefabricated layer 1 with good mechanical properties, thereby improving the production efficiency of prefabricated products, the turnover rate of machines and tools, and the utilization rate.

As shown in Figures 1 and 3, the steel bar truss consists of the lower chord reinforcement 5 located in the reinforced concrete floor prefabricated layer 1, the upper chord reinforcement 4 embedded in the cast-in-place layer during cast-in-place, and the sound-reducing layer 2 and Composed of web steel bars 6 connected with the lower chord steel bars 5 and upper chord steel bars 4, so that each layer forms a whole; the upper chord steel bars 4 and the lower chord steel bars 5 are placed longitudinally; the steel bar truss is a three-dimensional truss or a plane trapezoidal steel bar truss ; The interior of the reinforced concrete floor prefabricated layer 1 is embedded with structural steel bars 8, and the structural steel bars 8 are arranged at intervals in the transverse direction, and intersect with the lower chord steel bars 5; The stressed steel bars 7 of the surface layer are arranged at intervals in the transverse direction.

The sound-reducing layer 2 is poured from fine stone concrete mixed with polyacrylate polymer emulsion and elastic-plastic material particles 10; polyacrylate polymer emulsion and elastic-plastic material particles 10 can be Effectively reduce and insulate sound. The sound-insulating layer 2 can give the building floor a good sound-insulating and silencing effect. In addition, polyacrylate polymer emulsion is filled in the pores of fine stone concrete, which can also improve the impermeability of fine stone concrete; The elastic-plastic material particles 10 are one or more of rubber particles, silicone rubber, polymer organic foam particles and silica gel particles treated with a siloxane coupling agent, and the elastic-plastic material is treated with a siloxane coupling agent The particle 10 can improve its surface stickiness, increase the interfacial cohesion between the surface of the elastic-plastic material particle 10 and the cement paste, and endow the sound-reducing layer 2 with good integrity and sound-insulating performance; the web steel bar 6 can be a One or more of straight straight steel bars, V-shaped curved steel bars, W-shaped curved steel bars, and wave-shaped bent steel bars. Reinforced truss structures, etc.

Claims (8)

1. a kind of assembled subtracts vermex concrete laminated floor slab, it is characterised in that：It is made up of preformed layer and in-situ layer (3)；It is described Preformed layer is made up of the reinforced concrete floor preformed layer (1) and the sound insulating layer (2) that subtracts disposed thereon of bottom；It is described to subtract sound insulating layer (2) steel bar girder is disposed with, at the construction field (site) by sound insulating layer (2) is subtracted cast-in-place concrete steel bar girder is embedded to it is cast-in-place In layer (3), and is combined with preformed layer and fixed to form entirety floor.

2. assembled according to claim 1 subtracts vermex concrete laminated floor slab, it is characterised in that：The steel bar girder by Lower edge reinforcing bar (5) in reinforced concrete floor preformed layer (1), it is cast-in-place when embedment in-situ layer (3) in the reinforcing bar that winds up (4) And through web member reinforcing bar (6) composition for subtracting sound insulating layer (2) and being connected with the lower edge reinforcing bar (5) and the reinforcing bar that winds up (4).

3. assembled according to claim 1 or 2 subtracts vermex concrete laminated floor slab, it is characterised in that：The reinforcing bar is mixed Solidifying Tulou plate preformed layer (1) side wall is reserved with overlap joint reinforcing bar (9).

4. assembled according to claim 1 or 2 subtracts vermex concrete laminated floor slab, it is characterised in that：The reinforcing bar is mixed Solidifying Tulou plate preformed layer (1) is prefabricated using steam-curing concrete.

5. assembled according to claim 1 or 2 subtracts vermex concrete laminated floor slab, it is characterised in that：It is described to subtract sound insulation Layer (2) is to be poured by the pea gravel concreten of polyacrylate emulsion polymerization and elastic-plastic material particle (10) mix Build and form.

6. assembled according to claim 5 subtracts vermex concrete laminated floor slab, it is characterised in that：The elastic-plastic material During particle (10) is the rubber grain, silicon rubber, macromolecule organic foam particle and the silica gel particle that are handled through silicone coupling agents One or more.

7. assembled according to claim 2 subtracts vermex concrete laminated floor slab, it is characterised in that：The web member reinforcing bar (6) can be the one or more in in-line straight steel bar, V-arrangement bent-up bar, W shapes bent-up bar, waveform bending reinforcing steel bar.

8. assembled according to claim 2 subtracts vermex concrete laminated floor slab, it is characterised in that：The steel bar girder is Three-dimensional truss or planar trapezoidal steel bar girder.