CN203546993U

CN203546993U - Superimposed floor slab with folding bottom slab

Info

Publication number: CN203546993U
Application number: CN201320643253.1U
Authority: CN
Inventors: 刘建康
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-10-18
Filing date: 2013-10-18
Publication date: 2014-04-16
Anticipated expiration: 2023-10-18

Abstract

A superimposed floor slab with a folding bottom slab comprises the precast reinforced concrete bottom slab and a concrete superimposing layer; the bottom slab comprises a reinforcing mesh, a plurality of nuts which are connected with connecting reinforcing steel bars or anchor bolts are mounted on the reinforcing mesh, concrete is poured on the reinforcing mesh, so that the bottom slab is fabricated into two parts which are integrally connected, and a triangular small truss is welded on the reinforcing mesh exposed between the two parts; three pairs of small steel plates are preburied in the slab by both sides of the small truss; after the two parts of the bottom slab are unfolded, each pair of small steel plates are respectively fixedly connected by using short reinforcing steel bars; the connecting reinforcing steel bars, the anchor bolts, the small truss and the short reinforcing steel bars are arranged in the concrete superimposing layer, and tie bars on the circumference of the bottom slab are fixedly connected with a neighboring floor slab or a wall. Because the folding structure is adopted by the bottom slab of the superimposed floor slab, the problem on how to transport large precast members is solved, meanwhile, the problem of the constructional reinforcement and connection of the entire bottom slab is also solved, the overall anti-seismic and fireproof functions of the floor slab are enhanced, and the construction cost is reduced.

Description

The laminated floor slab of folded plate type base plate

Technical field

The utility model relates to a kind of laminated floor slab of folded plate type base plate, is a kind of fabricated floor framing in building specifically, belongs to building construction member.

Background technology

In the past, in general multilayer and high-story house engineering, extensively adopt the hollow precast floor slab that is provided with a plurality of cylindrical holes, for many years put into practice conclusion, this hollow precast floor slab can not meet country to the antidetonation of building and fireproof requirement.At present, the making of floor extensively adopts the prefabricated thin base plate of steel concrete bar shaped, has little steel truss or steel concrete rib-shaped structure on base plate, and after installation, cast-in-place note concrete folding layer forms thereon, but also design bidirectional stress structure.Like this, though met fire prevention and shockproof requirements, the load of floor of housing construction is also little, thereby makes housing construction cost cost higher, wastes again resource.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of simple in structure, be convenient to production and transport can be folding prefabricated panel, thereby produce the laminated floor slab of a kind of satisfied fire prevention and shockproof requirements.

The laminated floor slab of the utility model folded plate type base plate, comprise prefabricated reinforced concrete floor and concrete folding layer, wherein base plate comprises the steel mesh reinforcement connecting in length and breadth, on steel mesh reinforcement, be uniformly distributed and lay the nut that several are connected with connecting reinforcement or anchor bolt, difference concreting on steel mesh reinforcement, base plate is made to the two parts that are connected as a single entity, on the steel mesh reinforcement exposing between two parts, welded leg-of-mutton jack truss; On the base plate on jack truss both sides, be embedded with symmetrically respectively at least three pairs of little steel plates; After two parts of base plate flatten, every pair of little steel plate is connected and fixed with bar dowel respectively; Connecting reinforcement, anchor bolt, jack truss and bar dowel are all placed in overlapping layers, and the beard muscle of base plate surrounding is fixedly connected with adjacent floor or body of wall.

The laminated floor slab of the utility model folded plate type base plate, wherein jack truss comprises upper chord and two lower chords, both sides are welded to each other formation by waveform web member respectively, and lower chord and steel mesh reinforcement be welded and fixed, and the two ends of upper chord and lower chord are fixedly connected with adjacent floor or body of wall respectively.

The laminated floor slab of the utility model folded plate type base plate, wherein the upper end of connecting reinforcement is also provided with screw thread, is connected with hoisting bracket.

The laminated floor slab of the utility model folded plate type base plate, wherein two pairs of suspension ring are buried respectively on the both sides of base plate underground.

The laminated floor slab of the utility model folded plate type base plate, wherein upper chord is also fixedly connected with constructional reinforcement.

Thin layer base plate in the utility model laminated floor slab adopts can folding structure, solve the transportation problem of large prefabricated units, increase again constructional reinforcement and the connectivity problem thereof of whole base plate, improve antidetonation and the fire-proof function of floor integral body, can reduce the construction costs of housing construction simultaneously.

Accompanying drawing explanation

Fig. 1 is the laminated floor slab structural profile schematic diagram of the utility model folded plate type base plate;

Fig. 2 is that the duplication plate-type base arrangement master in Fig. 1 looks schematic diagram (wherein web member is not shown);

Fig. 3 is A-A section enlarged diagram in Fig. 2;

Fig. 4 is the jack truss structural representation of Fig. 3 intermediate cam shape;

Fig. 5 is the schematic side view of Fig. 4;

Fig. 6 is the folded state schematic diagram of base plate Double fold;

Fig. 7 is the three-bend folded state schematic diagram of base plate.

The specific embodiment

From Fig. 1, Fig. 2, the laminated floor slab of the utility model folded plate type base plate comprises prefabricated reinforced concrete floor 1 and concrete folding layer 2, wherein base plate 1 comprises the steel mesh reinforcement 3 connecting in length and breadth, on steel mesh reinforcement 3, be uniformly distributed and lay the nut 6 that several are connected with connecting reinforcement 4 or anchor bolt 5, difference concreting on steel mesh reinforcement 3, base plate 1 is made to the two parts that are connected as a single entity, on the steel mesh reinforcement 3 exposing between two parts, welded leg-of-mutton reinforcing bar jack truss; Jack truss comprises upper chord 10 and two lower chords 11 of indented bars, both sides are made waveform web member 12 with fine steel rib respectively and are welded to each other formation, and lower chord 11 is welded and fixed with steel mesh reinforcement 3, as shown in Fig. 3～Fig. 5, beard muscle 9 outside the two ends of upper chord 10, lower chord 11 and base plate 1 respectively with the wall connecting of building, form whole.On the base plate 1 on jack truss both sides, be embedded with symmetrically respectively three pairs of little steel plates 7; During installation, by folding base plate 1 hoisted in position, and after two parts are flattened, the steel mesh reinforcement 3 that is about to bent intermediate flattens, and on every pair of little steel plate 7, is welded and fixed respectively with bar dowel 8; Meanwhile, upper chord 10 is also fixedly connected with constructional reinforcement 14, and connecting reinforcement 4, anchor bolt 5, bar dowel 8, constructional reinforcement 14 and jack truss are all placed in cast-in-place overlapping layers 2.

In construction, base plate 1 adds jack truss and processes as prefabricated units, by base plate twofold or three-bend folding, as shown in Figure 6 and Figure 7, because the area of housing construction is limited, is three-bend at the most, utilizes the suspension ring 13 that both sides are buried underground respectively to lift.As for how to lay connecting reinforcement 4 or anchor bolt 5 on steel mesh reinforcement 3, should determine according to the situation of the size of base plate and mast-up, conventionally fill anchor bolt 5 maximum.

Claims

1. the laminated floor slab of a folded plate type base plate, comprise prefabricated reinforced concrete floor (1) and concrete folding layer (2), it is characterized in that described base plate (1) comprises the steel mesh reinforcement (3) connecting in length and breadth, on described steel mesh reinforcement (3), be uniformly distributed and lay the nut (6) that several are connected with connecting reinforcement (4) or anchor bolt (5), at the upper concreting respectively of described steel mesh reinforcement (3), described base plate (1) is made to the two parts that are connected as a single entity, the leg-of-mutton jack truss of the upper welding of described steel mesh reinforcement (3) exposing between two parts; On the described base plate (1) on described jack truss both sides, be embedded with symmetrically respectively at least three pairs of little steel plates (7); After two parts of described base plate (1) flatten, every pair of described little steel plate (7) uses respectively bar dowel (8) to be connected and fixed; Described connecting reinforcement (4), anchor bolt (5), jack truss and bar dowel (8) are all placed in described overlapping layers (2), and the beard muscle (9) of described base plate (1) surrounding is fixedly connected with adjacent floor or body of wall.

2. the laminated floor slab of folded plate type base plate according to claim 1, it is characterized in that described jack truss comprises upper chord (10) and two lower chords (11), both sides are welded to each other formation by waveform web member (12) respectively, and described lower chord (11) is welded and fixed with described steel mesh reinforcement (3), and the two ends of described upper chord (10) and lower chord (11) are fixedly connected with adjacent floor or body of wall respectively.

3. the laminated floor slab of folded plate type base plate according to claim 1 and 2, is characterized in that the upper end of described connecting reinforcement (4) is also provided with screw thread, is connected with hoisting bracket.

4. the laminated floor slab of folded plate type base plate according to claim 3, is characterized in that burying respectively two pairs of suspension ring (13) underground on the both sides of described base plate (1).

5. the laminated floor slab of folded plate type base plate according to claim 4, is characterized in that described upper chord (10) is also fixedly connected with constructional reinforcement (14).