Prestress dense rib sandwich floor slab

Abstract

The utility model discloses a prestressed dense rib sandwich floor slab, which comprises a lower panel, an upper panel, a longitudinal rib beam and a light filling batten, the light filling batten is positioned in a cavity formed by the lower panel, the upper panel and the longitudinal rib beam, and a groove penetrating transversely is arranged on the light filling batten. A plurality of connecting boxes with upward openings are evenly arranged on each edge of the floor, reserved sleeves are arranged on the sides, close to the edges of the floor, of the connecting boxes, the light filling strip plates are arranged in the prestressed dense rib sandwich floor, the light filling strips are EPS plates or XPS plates, the floor is light in overall weight and good in heat preservation effect, and the prestressed dense rib sandwich floor is suitable for being used in the field of construction. The floor slab can be connected with the wall plate in various forms such as bolt connection and welding of the bar grouting connection box, the connection is convenient, and the construction is rapid.

Description

TECHNICAL FIELD

[0001] The utility model relates to prefabricated building technical field especially relates to a prestressed dense rib sandwich floor. BACKGROUND

[0002] With the development of modern industrial technology, prefabricated concrete building gradually replaces cast-in-situ concrete building system in prior art with the advantages of fast construction speed, less restriction by climate condition, saving labor force and the like. The floor slab used in prefabricated building is generally a concrete solid slab structure, which is heavy in quality and high in manufacturing cost, and its heat preservation effect needs to be improved; the floor slab and the wall panel are connected through columns, which is inconvenient to connect. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a prestressed dense rib sandwich floor to solve the problems of large floor slab quality and inconvenient connection in prior art, and reduces the quality of the floor slab.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A prestressed dense rib sandwich floor, comprising a lower panel, an upper panel, a longitudinal rib beam and a light filling strip panel, the light filling strip panel is located in a cavity formed by the lower panel, the upper panel and the longitudinal rib beam, and a transversely penetrating groove is arranged on the light filling strip panel. The light filling strip panel is arranged in the floor slab, which can reduce the self-weight of the floor slab.

[0006] The transversely penetrating groove is arranged on the light filling strip panel, and the concrete of the upper panel can be embedded in the groove during the manufacturing process of the floor slab, so as to strengthen the bonding strength between the filling strip panel and the upper panel. The concrete in the multiple grooves can form a horizontal rib, which enhances the structural strength of the floor slab.

[0007] Preferably, each edge of the floor slab is uniformly provided with a connecting box for realizing bolt connection of the floor slab, and a bolt hole is arranged on the connecting box.

[0008] Preferably, each edge of the floor slab is uniformly provided with a grouting hole for realizing grouting connection of the floor slab.

[0009] Preferably, each edge of the floor slab is uniformly provided with a pre-embedded metal plate for realizing welding of the floor slab.

[0010] Preferably, the material of the light filling strip panel is an EPS plate or an XPS plate. The EPS plate and the XPS plate are both polystyrene foam plates, which are light in quality, easy to carry and install, and have good heat preservation and waterproof effects.

[0011] Preferably, the lower panel, the upper panel and the longitudinal rib beam have a container weight less than 1500kg / m 3The full-light aggregate structure concrete has a thermal conductivity less than 0.3 W / (m.k), a strength greater than 20 MPa, light weight, reduced thermal bridge effect of the ribbed beam and good heat preservation effect.

[0012] The production process of the prestressed dense rib sandwich floor comprises the following steps

[0013] Step one: form a rectangular mold by combining two end plates and two side plates on a workbench, the side plates are provided with a plurality of process holes, the positions of the process holes correspond to the grooves of the light filling strip plate;

[0014] Step two: set the first concrete inside the mold for forming the lower plate;

[0015] Step three: place the light filling strip plate above the first concrete;

[0016] Step four: insert the process pipe matched with the process hole into the process hole of the side plate, the process pipe passes through the process holes of the two side plates and the grooves of the light filling strip plate;

[0017] Step five: set the second concrete inside the mold for forming the longitudinal ribbed beam;

[0018] Step six: pull out the process pipe from the side mold;

[0019] Step seven: set the third concrete inside the mold for forming the upper plate above the light filling strip plate after filling the grooves, and obtain the floor;

[0020] Step eight: demold the two end plates and the two side plates from the floor.

[0021] The utility model also provides a mold, the mold is used for realizing the production process of the prestressed dense rib sandwich floor, the mold comprises two end plates and two side plates, the two end plates and two side plates combine and form a rectangular mold, two end plates are in parallel, two side plates are in parallel, end plate and side plate are in vertical, the side plate is provided with a plurality of process holes, the position of process hole corresponds with the groove of light filling strip plate.

[0022] The utility model has the advantages of:

[0023] 1, this prestressed dense rib sandwich floor is internally provided with light filling strip plate, and the light filling strip is EPS board or XPS board, the material of the upper plate, the longitudinal ribbed beam and the transverse ribbed beam adopts full-light aggregate structure concrete, and the wall plate is light in overall quality and good in heat preservation effect.

[0024] 2, the light filling strip plate of the prestressed dense rib sandwich floor is provided with transversely penetrating grooves, the combination strength between the filling strip plate and the upper plate can be strengthened, and the structural strength of the floor is enhanced.

[0025] 3、The prestressed dense rib sandwich floor can be provided with a connecting box, a grouting hole and a pre-buried metal plate for connecting with a wall plate, and the floor can be connected with the wall plate in various forms such as bolt connection, pin grouting connection box welding and the like, so that the connection is convenient and the construction is fast.

[0026] 4、The production process and the mold of the prestressed dense rib sandwich floor are used for producing the prestressed dense rib sandwich floor, the transversely-through grooves arranged on the light filling strip plate are used for inserting the process pipe, the process pipe can limit the light filling strip plate, prevents the light filling strip plate from moving and floating, and facilitates the pouring and vibrating of the concrete. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 Fig. 1 is a structural schematic view of the prestressed dense rib sandwich floor;

[0028] Figure 2 Fig. 2 is a structural schematic view of the transverse section of the prestressed dense rib sandwich floor;

[0029] Figure 3 Fig. 3 is a structural schematic view of the filling strip plate of the prestressed dense rib sandwich floor;

[0030] Figure 4 Fig. 4 is a structural schematic view of the prestressed dense rib sandwich floor when being threadedly connected with a wall plate;

[0031] Figure 5 Fig. 5 is a structural schematic view of the mold (the process hole is a round hole);

[0032] Figure 6 Fig. 6 is a structural schematic view of the mold (the process hole is a square hole);

[0033] Figure 7 Fig. 7 is a structural schematic view of the prestressed dense rib sandwich floor when being pin grouting connected with a wall plate;

[0034] Figure 8 Fig. 8 is a structural schematic view of the prestressed dense rib sandwich floor when being welded with a wall plate.

[0035] In the drawings: 1, lower layer; 2, upper layer; 3, longitudinal rib; 4, light filling strip plate; 5, connecting box; 6, wall plate; 7, mold; 8, grouting hole; 9, pre-buried metal plate; 41, groove; 71, end plate; 72, edge plate; 73, round hole; 74, square hole. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0037] Embodiment 1

[0038] With reference to Figures 1-3 A prestressed dense rib sandwich floor, comprising a lower panel 1, an upper panel 2, longitudinal rib beams 3 and light filling strip boards 4, the light filling strip boards 4 are located in the cavity formed by the lower panel 1, the upper panel 2 and the longitudinal rib beams 3, and transversely penetrating grooves 41 are arranged on the light filling strip boards 4. The light filling strip boards 4 are arranged inside the floor, which can reduce the self weight of the floor.

[0039] Transversely penetrating grooves 41 are arranged on the light filling strip boards 4. During the manufacturing process of the floor, when pouring the upper panel 2, the concrete of the upper panel 2 can be embedded in the grooves 41, which is used to strengthen the bonding strength between the filling strip boards 4 and the upper panel 2, and the concrete in the grooves 41 can form horizontal ribs to enhance the structural strength of the floor.

[0040] In this embodiment, the material of the light filling strip boards 4 is EPS board or XPS board, both of which are polystyrene foam boards, light in weight, easy to carry and install, and have good heat preservation and waterproof effects.

[0041] In this embodiment, the lower panel 1, the upper panel 2 and the longitudinal rib beams 3 are made of full-light aggregate structure concrete with a unit weight less than 1500 kg / m 3 , a thermal conductivity less than 0.3 W / (m·k) and a strength greater than 20 MPa, which is light in weight and reduces the thermal bridge effect of the rib beams, and has good heat preservation effect.

[0042] Embodiment 2

[0043] This embodiment proposes a production process for producing the prestressed dense rib sandwich floor in embodiment 1 and a mold 7 for realizing the above-mentioned production process of the prestressed dense rib sandwich floor.

[0044] With reference to Figure 6 and Figure 7 , the mold 7 comprises two end plates 71 and two side plates 72, which are combined to form a rectangular mold, and the rectangular mold and the workbench form a pouring space. Among them, the two end plates 71 are arranged in parallel, the two side plates 72 are arranged in parallel, and the end plates 71 are arranged perpendicularly to the side plates 72. A plurality of process holes are formed in the side plates 72, and the positions of the process holes correspond to the grooves 41 of the light filling strip boards 4. When pouring the floor, the process holes are used for inserting process pipes, the process pipes can pass through the grooves 41 of the light filling strip boards 4, and the light filling strip boards 4 are limited to prevent the light filling strip boards 4 from moving and floating, which is convenient for pouring and vibrating the concrete.

[0045] With reference to Figure 6 and Figure 7The process hole bag can be a round hole 73 or a square hole 74. When the process hole bag is a round hole 73, the process pipe is a round pipe. When the process hole bag is a square hole 74, the process pipe is a square pipe. When the process hole is a round hole 73 and the process pipe is a round pipe, the pipe is easy to pull out.

[0046] In this embodiment, the production process of the prestressed dense rib sandwich floor includes the following steps:

[0047] Step one: form a mold 7 by combining two end plates 71 and two side plates 72 on the workbench;

[0048] Step two: set the first concrete inside the mold 7, which is used to form the lower panel 1;

[0049] Step three: place the lightweight filler strip 4 above the first concrete;

[0050] Step four: insert the process pipe that matches the process hole into the process hole 73 of the side plate 72. The process pipe passes through the process holes of the two side plates 73 and the grooves 41 of the lightweight filler strip 4, and the process pipe limits the lightweight filler strip 4;

[0051] Step five: set the second concrete inside the mold 7, which is used to form the longitudinal rib beam 3;

[0052] Step six: pull out the process pipe from the side of the side mold 72;

[0053] Step seven: set the third concrete inside the mold 7, which fills the grooves 41 and forms the upper panel 1 above the lightweight filler strip 4, resulting in a floor;

[0054] Step eight: separate the two end plates 71 and the two side plates 72 from the floor, and complete the demolding.

[0055] Embodiment 3

[0056] Different from embodiment 1, referring to Figure 1 and Figure 4 Each side of the floor 1 is evenly provided with a plurality of connection boxes 5. The connection boxes 5 are provided with bolt holes on one side close to the side of the floor. The bolt holes are used for the bolt to pass through. When the floor is connected with the wall plate 6, the wall plate 6 is also provided with corresponding connection boxes, and the connection boxes of the wall plate 6 are also provided with bolt holes. The bolt holes of the floor and the wall plate 6 can cooperate with each other, the bolt passes through the bolt holes of the two connection boxes, and the bolt connection between the floor and the wall plate 6 is completed, which is convenient to connect.

[0057] Embodiment 4

[0058] Different from embodiment 1, referring to Figure 7Each edge of the floor is uniformly provided with a plurality of grouting holes 8, and the wallboard 6 is provided with connecting steel bars corresponding to the positions of the grouting holes 8, the connecting steel bars can be inserted into the grouting holes 8 of the floor, and the grouting in the grouting holes 8 is used to complete the grouting connection between the floor and the wallboard 6.

[0059] Embodiment 5

[0060] Different from Embodiment 1, the reference Figure 8 Each edge of the floor is uniformly provided with a plurality of embedded metal plates 9, and the wallboard 6 is provided with metal pieces for connection at corresponding positions, the embedded metal plates 9 of the floor and the metal pieces of the wallboard 6 can be welded to realize the connection between the floor and the wallboard.

[0061] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A prestressed ribbed sandwich floor slab, characterized in that, It includes a lower panel, an upper panel, longitudinal ribs, and a lightweight filler strip. The lightweight filler strip is located in the cavity formed by the lower panel, the upper panel, and the longitudinal ribs, and a transverse through groove is provided on the lightweight filler strip.

2. The prestressed ribbed sandwich slab according to claim 1, characterized in that, Each side of the floor slab is evenly provided with a connecting box for realizing bolted connection of the floor slab, and the connecting box is provided with bolt holes.

3. The prestressed ribbed sandwich slab according to claim 1, characterized in that, Each side of the floor slab is evenly provided with grouting holes for grouting connection of the floor slab reinforcement.

4. The prestressed ribbed sandwich slab according to claim 1, characterized in that, Each side of the floor slab is uniformly provided with a pre-embedded metal plate for welding the floor slab.

5. The prestressed ribbed sandwich slab according to any one of claims 1-4, characterized in that, The lightweight filler strip is made of EPS board or XPS board.

6. The prestressed ribbed sandwich slab according to claim 5, characterized in that, The lower panel, upper panel, and longitudinal ribs are made of materials with a density of less than 1500 kg / m³. 3 Lightweight aggregate concrete with a thermal conductivity of less than 0.3 W / (m·k) and a strength greater than 20 MPa.

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