CN106760101A - A kind of prefabricated superimposed sheet - Google Patents

Abstract

An assembled prefabricated laminated slab includes prefabricated layers, laminated layers, lightweight material panels, reinforced trusses, upper chord reinforcements, lower chord reinforcements, obliquely bent reinforcements and horizontally distributed reinforcements. In the factory, the upper chord steel bars, lower chord steel bars and obliquely bent steel bars are welded to form a steel bar truss, and then the lightweight material board is completed, and then concrete is poured to make a prefabricated layer. The material slabs are then cured and formed; then at the construction site, each floor slab that has completed the prefabricated layer is installed in place, and the long horizontally distributed steel bars are arranged on the steel truss of the prefabricated layer. To form a unified whole of each floor, that is to complete the production of prefabricated laminated panels. The invention is divided into two pourings, utilizes the advantages of triangular steel trusses and light material plates, and has the advantages of convenient transportation, good overall performance, excellent mechanical properties, light weight and high strength.

Description

An assembled prefabricated laminated panel

technical field

The invention relates to an assembled prefabricated laminated board, which belongs to the field of building components.

Background technique

As an important horizontal component and the only horizontal support in the building structure, the floor slab has a great impact on the safety, cost and construction period of the project. At present, the floor system forms mainly include cast-in-place reinforced concrete slabs, profiled steel plate-concrete composite slabs, and laminated slabs. Although the cast-in-place reinforced concrete floor has the advantages of good integrity and high rigidity, it requires formwork support, a large amount of wet work on site, low construction efficiency, and a long construction period. Support formwork is required, but the cost is high, and the profiled steel plate needs to be treated with fire protection, and its adhesion to concrete is poor, and the bottom surface is uneven, so it often needs to be treated as a suspended ceiling; The above application has its outstanding advantages, but the existing laminated panels have the following disadvantages: the laminated surface between the prefabricated layer and the laminated layer needs to be strictly treated, and the overall performance after laminated is difficult to guarantee; the thermal insulation of laminated panels The thermal performance is difficult to guarantee; on-site steel bar binding is cumbersome and the construction speed is slow.

Contents of the invention

The invention proposes an assembled prefabricated laminated plate with good integrity, excellent mechanical properties, convenient transportation, light weight and high strength. Its purpose is to solve the technical problems in the background technology at least to a certain extent, and to reflect the advantages of the prefabricated structural system.

Technical scheme of the present invention is as follows:

An assembled prefabricated laminated slab, characterized in that it includes prefabricated layers (1), laminated layers (2), lightweight material panels (3), steel bar trusses (4), upper chord bars (5), lower chord bars (6), obliquely bent bars (7) and horizontally distributed bars (8);

The prefabricated prefabricated laminated slab is poured twice, the upper chord steel bar (5), the lower chord steel bar (6) and the obliquely bent steel bar (7) are welded to form the steel bar truss (4), and the horizontally distributed steel bar (8) is bound to the upper part of the lower chord steel bar; the prefabricated layer (1) When it has not been solidified and formed, the lightweight material plate ⑶ is fixedly arranged in the middle of the steel truss ⑷, and then cured and formed; then at the construction site, each floor slab that has completed the prefabricated layer ⑴ is installed in place without supporting formwork, and then placed in the prefabricated layer ⑴ On the reinforced truss ⑷, steel bars ⑻ are arranged horizontally throughout the length, and are bound and connected with the upper chord steel bars ⑸, and then the poured-in-place concrete layer is unified, that is, the laminated layer ⑵, and the floors are formed into a unified whole, that is, the production of the prefabricated laminated slab is completed .

Further, the lightweight material plates are arranged at equal intervals between the steel trusses (4); the light material plates (3) are arranged when the prefabricated layer is not solidified and formed.

Further, the lightweight material board (3) adopts polystyrene board, and other lightweight materials can also be used.

Further, the steel bar truss (4) is a triangular truss, one end of the obliquely bent steel bar (7) is provided with a hook, the lower chord steel bar (6) is welded at the hook, and the other end of the obliquely bent steel bar (7) is welded to the upper chord steel bar (5). Figure 4 shows the symmetrical arrangement of two inclined steel bars⑺.

Furthermore, the entire floor is poured in two steps. The prefabricated layer of the single floor ⑴ is first completed in the factory, and each single floor is installed in place at the construction site, and the cast-in-situ concrete monolithic layer-laminated layer ⑵ is uniformly poured.

Beneficial effect

An assembled prefabricated laminated slab proposed by the present invention aims to overcome the defects of the prior art, utilize the triangular stability of the steel bar truss to withstand greater loads, and greatly improve the overall performance of the laminated floor slab; Advantages, improve the thermal insulation, heat insulation, waterproof and compression performance of the laminated floor, increase the deflection resistance of the floor, and reduce the weight of the floor. The invention divides two pouring, the prefabricated layer is completed in the factory, which is convenient for transportation, and only needs to pour the laminated layer at the construction site without formwork, which can shorten the construction period, improve economic benefits, and conform to the development trend of the construction industry.

Description of drawings

Fig. 1 is the whole schematic diagram of example 1 of the present invention

Fig. 2 is the longitudinal sectional view of example 1 of the present invention

Fig. 3 is a cross-sectional view of Example 1 of the present invention

Fig. 4 is the steel bar truss sectional view of example 1 of the present invention

Fig. 5 is the longitudinal sectional view of example 2 of the present invention

Figure 6 is a cross-sectional view of Example 2 of the present invention

In the figure, 1- prefabricated layer; 2- laminated layer; 3- polystyrene board; 4- reinforced truss; 5- upper chord reinforcement; 6- lower chord reinforcement;

detailed description

The present invention will be described in detail below in conjunction with the accompanying drawings. The embodiments described below with reference to the accompanying drawings are examples and are intended to explain the present invention, but should not be construed as limiting the present invention.

As shown in accompanying drawing 1-accompanying drawing 4, the making and assembling of prefabricated layer (1), steel bar truss (4) and lightweight material board (3) of the present invention are all completed in the factory, and upper chord reinforcing bar (5), lower chord reinforcing bar (6) and obliquely bent reinforcing bar are earlier installed in the factory ⑺Welding to form the steel truss ⑷, and then complete the production of light material slabs ⑶, and then pour concrete to make the prefabricated layer ⑴. When the prefabricated layer ⑴ has not yet solidified and formed, the light material slabs ⑶ are fixed in the middle of the steel truss ⑷, and then cured and formed Then at the construction site, each floor slab that has completed the prefabricated layer (1) is installed in place without supporting formwork, and then the long horizontally distributed steel bars (8) are arranged on the steel bar truss (4) of the prefabricated layer (1), and then the cast-in-place concrete is unified and the whole layer is stacked Lamination (2) to form a unified whole of each floor, that is, to complete the production of prefabricated prefabricated laminated panels.

As shown in accompanying drawings 5 and 6, the difference between this example and example 1 is that the triangular steel truss (4) is a plane steel truss.

Claims (5)

1. An assembled prefabricated laminated slab, characterized in that it includes prefabricated layer (1), laminated layer (2), lightweight material plate (3), steel bar truss (4), upper chord steel bar (5), lower chord steel bar (6), obliquely bent steel bar (7) and horizontally distributed steel bars ⑻; The prefabricated prefabricated laminated slab is poured twice, the upper chord steel bar (5), the lower chord steel bar (6) and the obliquely bent steel bar (7) are welded to form the steel bar truss (4), and the horizontally distributed steel bar (8) is bound to the upper part of the lower chord steel bar; the prefabricated layer (1) When it has not been solidified and formed, the lightweight material plate ⑶ is fixedly arranged in the middle of the steel truss ⑷, and then cured and formed; then at the construction site, each floor slab that has completed the prefabricated layer ⑴ is installed in place without supporting formwork, and then placed in the prefabricated layer ⑴ On the reinforced truss ⑷, steel bars ⑻ are arranged horizontally throughout the length, and are bound and connected with the upper chord steel bars ⑸, and then the poured-in-place concrete layer is unified, that is, the laminated layer ⑵, and the floors are formed into a unified whole, that is, the production of the prefabricated laminated slab is completed . 2. A prefabricated prefabricated laminated slab according to claim 1, characterized in that: the lightweight material panels are arranged at equal intervals and lengthwise between the steel bar trusses (4); the lightweight materials are arranged when the prefabricated layer is not solidified and formed Board ⑶. 3. A prefabricated prefabricated laminated panel according to claim 1, characterized in that: the lightweight material panel (3) is a polystyrene panel. 4. An assembled prefabricated laminated slab according to claim 1, characterized in that: the steel bar truss (4) is a triangular truss, one end of the obliquely bent steel bar (7) is provided with a hook, the lower chord steel bar (6) is welded to the hook, and the obliquely bent steel bar (7) The other end is welded with the upper string steel bar (5). 5. A prefabricated prefabricated laminated slab according to claim 1, characterized in that: the whole floor is poured twice, the prefabricated layer (1) of the single floor is first completed in the factory, and each single floor is installed at the construction site In place, uniform pouring of cast-in-place concrete monolithic layer - laminated layer ⑵.