Fabricated floor slab structure

Abstract

The utility model provides an assembly type floor slab structure which comprises a prefabricated floor slab, vertical pouring reinforcing steel bars and transverse pouring reinforcing steel bars are evenly poured in the prefabricated floor slab, the two ends of the vertical pouring reinforcing steel bars and the two ends of the transverse pouring reinforcing steel bars are exposed out of the interior of the prefabricated floor slab, and an integrated pouring belt bottom plate is arranged on one side of the prefabricated floor slab. An integrated covering plate is arranged on the lower middle portion of the other side of the prefabricated floor slab. By means of the overall arrangement, a U-shaped pouring cavity can be formed between every two adjacent prefabricated floor slabs during assembly, and therefore the trouble that a pouring formwork needs to be built at a pouring belt between every two adjacent prefabricated floor slabs and the pouring formwork needs to be disassembled in the later period is avoided; and the whole construction process is more convenient, flexible and efficient.

Description

Technical Field

[0001] This utility model relates to the field of construction, and in particular to a prefabricated floor slab structure. Background Technology

[0002] Prefabricated floor slab structures refer to a structural form in which the main load-bearing components of a floor slab (such as the floor slab itself and its supporting structure) are prefabricated in a factory, then transported to the construction site, and assembled using reliable connection methods. Depending on the form of the prefabricated components and the connection methods, prefabricated floor slab structures can be divided into several types, such as prefabricated reinforced concrete floor slabs and composite floor slabs.

[0003] However, existing composite floor slabs will have corresponding pouring strips between the floor slabs during assembly. Before pouring, not only is it necessary to install the formwork frame for this pouring strip, but it is also necessary to disassemble and reassemble the formwork after pouring, which makes the construction process time-consuming and labor-intensive.

[0004] Therefore, it is essential to invent a prefabricated floor slab structure. Utility Model Content

[0005] To solve the above-mentioned technical problems, the present invention provides a prefabricated floor slab structure with the following technical solution: a prefabricated floor slab structure, comprising a prefabricated floor slab, wherein: vertical cast steel bars and horizontal cast steel bars are uniformly cast inside the prefabricated floor slab, both ends of the vertical cast steel bars and horizontal cast steel bars protrude from inside the prefabricated floor slab, an integral cast strip bottom plate is provided on one side of the prefabricated floor slab, and an integral cover plate is provided in the lower middle part of the other side of the prefabricated floor slab;

[0006] The bottom plate of the casting strip on one of the precast floor slabs is overlapped and connected with the cover plate on the other precast floor slab to form a casting cavity. The cover plate is above the bottom plate of the casting strip, and the bottom surface of the cover plate is in close contact with the upper surface of the bottom plate of the casting strip.

[0007] The bottom plate and the cover plate of the casting strip are both located below the transversely cast reinforcing bars.

[0008] The bottom slab of the casting strip is filled with reinforcing steel bars, both ends of which protrude from inside the bottom slab of the casting strip.

[0009] The upper surface of the precast floor slab is uniformly cast with several truss steel bars and reinforcing plates in an alternating pattern.

[0010] The reinforcing plate includes an I-beam and reinforcing strips. The I-beam is cast inside the precast floor slab. The upper surface of the I-beam is flush with the upper surface of the precast floor slab. Several reinforcing strips are evenly fixedly installed on the upper surface of the I-beam, and the reinforcing strips protrude from the upper surface of the precast floor slab.

[0011] Each of the reinforcing strips has several upward-facing inclined notches evenly distributed on its surface.

[0012] A groove is formed between every two adjacent reinforcing strips.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] The overall design of this utility model allows a U-shaped casting cavity to be formed between two adjacent precast floor slabs during assembly, thereby avoiding the trouble of building a casting template at the casting strip between two adjacent precast floor slabs and disassembling the casting template later, making the overall construction process more convenient, flexible and efficient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the assembly structure between precast floor slabs of this utility model.

[0016] Figure 2 This is a schematic diagram of the precast floor slab structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the reinforcing plate structure of this utility model.

[0018] Figure 4 This is a partially enlarged structural diagram of point A of this utility model.

[0019] Figure 5 This is a partially enlarged structural diagram of section B of this utility model.

[0020] In the picture:

[0021] 1. Precast floor slab, 2. Cast-in-place bottom slab, 3. Cover plate, 4. Vertical cast-in-place reinforcement, 5. Horizontal cast-in-place reinforcement, 6. Truss reinforcement, 7. Reinforcing plate, 71. I-beam, 72. Reinforcing strip, 73. Inclined notch, 8. Casting cavity, 9. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0023] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0024] The present invention will be further described below with reference to the accompanying drawings: Example

[0025] Reference Figure 1-5 A prefabricated floor slab structure includes a prefabricated floor slab 1, wherein: vertical cast steel bars 4 and horizontal cast steel bars 5 are uniformly cast inside the prefabricated floor slab 1, and both ends of the vertical cast steel bars 4 and the horizontal cast steel bars 5 protrude from inside the prefabricated floor slab 1 so that two adjacent prefabricated floor slabs 1 are tied together by the horizontal cast steel bars 5, and the prefabricated floor slab 1 is tied together with the building beam steel bars by the vertical cast steel bars 4. An integral cast strip bottom plate 2 is provided on one side of the prefabricated floor slab 1, and an integral cover plate 3 is provided in the middle and lower part of the other side of the prefabricated floor slab 1 so that two adjacent prefabricated floor slabs 1 are joined together to form an upward-opening U-shaped casting cavity.

[0026] Specifically, when two adjacent precast floor slabs 1 are spliced ​​together, the bottom plate 2 of the pouring strip on one of the precast floor slabs 1 is overlapped and connected with the cover plate 3 on the other precast floor slab 1, so that the bottom plate 2 of the pouring strip is below the cover plate 3 and forms a pouring cavity 9, so that the required concrete can be poured in the pouring cavity 9, so that the two adjacent precast floor slabs 1 are joined and fixed together.

[0027] Since the cover plate 3 is above the bottom plate 2 of the casting strip, and the bottom surface of the cover plate 3 is in close contact with the upper surface of the bottom plate 2 of the casting strip, the cover plate 3 can block the bottom plate 2 of the casting strip within a certain range during the assembly process if the cover plate 3 or the bottom plate 2 of the casting strip collide, thus providing a certain margin of error, ensuring the sealing of the joint, and preventing leakage during the casting process.

[0028] The bottom surface of the cast-in-place base plate 2 is flush with the bottom surface of the precast floor slab 1 to ensure the flatness of the building's interior roof after construction.

[0029] The bottom plate 2 and the cover plate 3 of the casting strip are both below the transverse casting reinforcement 5 so that the transverse casting reinforcement 5 can be cast together in the casting cavity 9.

[0030] In this embodiment, the length of the bottom plate 2 of the casting strip is greater than or equal to the length of the transverse casting reinforcement 5 protruding from the interior of the precast floor slab 1, so that when two adjacent precast floor slabs 1 are spliced ​​together, they will not be blocked by the transverse casting reinforcement 5.

[0031] In this embodiment, the length of the cover plate 3 is less than the length of the transverse cast steel reinforcement 5 that protrudes from the interior of the precast floor slab 1.

[0032] In this embodiment, reinforcing steel bars 8 are cast inside the bottom plate 2 of the casting strip to improve the strength of the bottom plate 2 of the casting strip. Both ends of the reinforcing steel bars 8 protrude from inside the bottom plate 2 of the casting strip.

[0033] In this embodiment, the upper surface of the precast floor slab 1 is uniformly cast with several truss steel bars 6 and reinforcing plates 7 in an alternating pattern, so that after the precast floor slab 1 is laid, the corresponding steel bars can be built by the truss steel bars 6, and the strength of the precast floor slab 1, as well as the contact area and bond strength with the subsequently poured concrete can be improved by the reinforcing plates 7.

[0034] In this embodiment, the reinforcing plate 7 includes an I-beam 71 and reinforcing strips 72. The I-beam 71 is cast inside the precast floor slab 1 to increase the contact area with the precast floor slab 1 and to better lock together with the precast floor slab 1. The upper surface of the I-beam 71 is flush with the upper surface of the precast floor slab 1. Several reinforcing strips 72 are uniformly fixedly installed on the upper surface of the I-beam 71 to increase the contact area between the precast floor slab 1 and the subsequently poured concrete.

[0035] In this embodiment, each reinforcing strip 72 has several upward-facing inclined notches 73 evenly distributed on its surface. The inclination angle of the inclined notches 73 is from 1 degree to 90 degrees, so as to increase the contact area and locking ability between the precast floor slab 1 and the post-cast concrete through the inclined notches 73, thereby improving the overall bonding effect.

[0036] In this embodiment, a groove is formed between every two adjacent reinforcing strips 72 to increase the contact area between the precast floor slab 1 and the post-cast concrete, thereby increasing the bond strength between the precast floor slab 1 and the post-cast concrete.

[0037] In this embodiment, the vertical cast steel bars 4, the horizontal cast steel bars 5, the truss steel bars 6, and the reinforcing plate 7 are all treated with anti-corrosion and waterproof coatings, such as epoxy resin anti-corrosion and waterproof coatings, polyurethane anti-corrosion and waterproof coatings, acrylic anti-corrosion and waterproof coatings, and neoprene rubber anti-corrosion and waterproof coatings.

[0038] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A prefabricated floor slab structure, characterized in that: The precast floor slab (1) includes: vertical cast steel bars (4) and horizontal cast steel bars (5) uniformly cast inside the precast floor slab (1), both ends of the vertical cast steel bars (4) and the horizontal cast steel bars (5) protruding from inside the precast floor slab (1), an integral cast strip bottom plate (2) is provided on one side of the precast floor slab (1), and an integral cover plate (3) is provided in the middle and lower part of the other side of the precast floor slab (1). The bottom plate (2) of the casting strip on one of the precast floor slabs (1) is overlapped and connected with the cover plate (3) on the other precast floor slab (1) to form a casting cavity (9) with the opening facing upward. The cover plate (3) is above the bottom plate (2) of the casting strip, and the bottom surface of the cover plate (3) is in close contact with the upper surface of the bottom plate (2). The bottom plate (2) and the cover plate (3) of the casting strip are both below the transverse casting reinforcement (5).

2. The fabricated floor structure of claim 1, wherein: The bottom plate (2) of the casting strip is filled with reinforcing steel bars (8), and both ends of the reinforcing steel bars (8) protrude from the bottom plate (2) of the casting strip.

3. The panelized floor structure of claim 1, wherein: The upper surface of the precast floor slab (1) is uniformly cast with several truss steel bars (6) and reinforcing plates (7) in an alternating pattern.

4. A fabricated floor structure as claimed in claim 3, wherein: The reinforcing plate (7) includes an I-beam (71) and reinforcing strips (72). The I-beam (71) is cast inside the precast floor slab (1). Several reinforcing strips (72) are uniformly fixed on the upper surface of the I-beam (71). The reinforcing strips (72) protrude from the upper surface of the precast floor slab (1).

5. A fabricated floor structure as claimed in claim 4, wherein: Each of the reinforcing strips (72) has several upward-facing inclined notches (73) evenly distributed on its surface.

6. A fabricated floor structure as claimed in claim 5, wherein: A groove is formed between every two adjacent reinforcing strips (72).

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