Prefabricated bottom plate for hollow floor

Abstract

The prefabricated bottom plate comprises a bottom plate body A and a bottom plate body B. The inner side of the bottom plate body A and the inner side of the bottom plate body B are both fixedly connected with bottom plate load-bearing steel bars in an inserted mode, the side face of the bottom plate body A is fixedly provided with a first cross butt joint plate, and the side face of the bottom plate body B is fixedly provided with a second cross butt joint plate. Fixed connecting ribs are fixedly inserted into the side faces of the first cross butt joint plate and the second cross butt joint plate, and main rib beams are fixedly arranged above the A bottom plate and the B bottom plate. Through butt joint of the bottom plate A and the bottom plate B, stable connection between the bottom plates is achieved through the first cross butt joint plate, the second cross butt joint plate and the fastening effect of the fixed connecting ribs, the overall stability of the structure is enhanced, the assembling process is simpler, more convenient and more efficient, and the construction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to building construction technical field, concretely is a kind of prefabricated bottom plate for hollow floor. BACKGROUND

[0002] Hollow floor prefabricated bottom plate is a floor assembly prefabricated in factory, installed on site, which constitutes the bottom support of hollow floor structure. This bottom plate is usually composed of building materials such as steel bars and concrete, with a hollow cavity or filled with light materials inside to reduce weight and improve structural performance.

[0003] Some existing prefabricated bottom plates and floor may not be as strong and stable as the present device. Its connection method may be relatively simple, such as relying only on the adhesion of embedded steel bars and concrete. This connection method is prone to cracks during long-term use, which weakens the connection between the prefabricated plate and the main structure. Moreover, some existing prefabricated bottom plates and floor may also have deficiencies in construction efficiency and flexibility. The assembly process may be relatively cumbersome, requiring a lot of manpower and time. At the same time, due to structural and dimensional limitations, it may be difficult to meet the needs of modern architecture for diversification and flexibility. SUMMARY

[0004] The purpose of the utility model is to solve the problems mentioned in the background above and provide a prefabricated bottom plate for hollow floor.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a prefabricated bottom plate for hollow floor, comprising: A bottom plate and B bottom plate, both the A bottom plate and the B bottom plate have bottom plate stress steel bars fixedly inserted into the inner side, the A bottom plate side is fixedly provided with a first cross docking plate, the B bottom plate side is fixedly provided with a second cross docking plate, the first cross docking plate and the second cross docking plate side are fixedly inserted with fixed connecting bars, and the A bottom plate and the B bottom plate are fixedly provided with main rib beams above.

[0006] As a further scheme of the utility model: the main rib beam is fixedly inserted with rib beam stirrups above, the outer side of the main rib beam is fixedly provided with a side protruding plate at one end, the side protruding plate surface is provided with a docking port, the inner side of the main rib beam is fixedly inserted with rib beam reinforcing bars, the side protruding plate is fixedly provided with a panel support above, the panel support is fixedly provided with a floor panel above, the docking port side is clamped with a secondary rib beam, the outer side of the secondary rib beam is fixedly provided with a fixed plate at one end, the fixed plate is fixedly screwed with a fixed screw rod above, and the main rib beam and the secondary rib beam cross space to form a hollow layer.

[0007] As a further scheme of the utility model: the core mold is arranged in the hollow layer, the core mold comprises a heat preservation layer arranged above the hollow layer, a fireproof layer is fixedly arranged above the heat preservation layer, a sound insulation layer is fixedly arranged above the fireproof layer, and a fixed steel bar frame is arranged above the sound insulation layer.

[0008] As a further scheme of the utility model: the A bottom plate and the B bottom plate are mutually butted together through the first cross butt joint plate and the second cross butt joint plate, and the first cross butt joint plate and the second cross butt joint plate are tightly butted through the fixed connecting rib.

[0009] As a further scheme of the utility model: a plurality of groups of the main rib beam and the secondary rib beam are arranged, rib beam stirrups are fixedly arranged above the secondary rib beam, the main rib beam and the secondary rib beam are fixedly arranged above the A bottom plate and the B bottom plate through the rib beam stirrups, the fixed screw on the side surface of the secondary rib beam is fixedly screwed above the side protruding plate on the side surface of the main rib beam, and the panel support is welded between the side protruding plate and the floor slab panel.

[0010] As a further scheme of the utility model: the size of the core mold is matched with the size of the hollow layer, the fixed steel bar frame is composed of a plurality of groups of transverse fixed steel bars and longitudinal fixed steel bars, the plurality of groups of transverse fixed steel bars and longitudinal fixed steel bars are anchored between the main rib beam and the secondary rib beam, the fixed steel bar frame is located directly above the core mold and is used for fixing and limiting the core mold, and the heat preservation layer is filled with heat preservation cotton.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] In the utility model, the butt joint of the A bottom plate and the B bottom plate, the first cross butt joint plate and the second cross butt joint plate and the fastening effect of the fixed connecting rib realize the stable connection between the bottom plates, not only enhance the overall stability of the structure, but also make the assembly process more simple and efficient, and improve the construction efficiency.

[0013] Through the design of the hollow layer, the self weight of the floor slab is effectively reduced, and the heat preservation, sound insulation and other performances are improved. The core mold arranged in the hollow layer comprises a heat preservation layer, a fireproof layer and a sound insulation layer, and these layered structures respectively provide the functions of heat preservation, fireproofing and sound insulation. ACCURACY OF DRAWINGS

[0014] Figure 1 It is the overall structure schematic view of the prefabricated bottom plate for the hollow floor slab.

[0015] Figure 2 It is the internal structure schematic view of the prefabricated bottom plate for the hollow floor slab.

[0016] Figure 3 is a structural schematic view of a middle rib beam of a prefabricated bottom plate for a hollow floor system according to the present application;

[0017] Figure 4 is a structural schematic view of a bottom plate connection of a prefabricated bottom plate for a hollow floor system according to the present application;

[0018] Figure 5 is a structural schematic view of a core mold of a prefabricated bottom plate for a hollow floor system according to the present application.

[0019] In the figure: 1, A bottom plate; 2, B bottom plate; 3, bottom plate stress reinforcement; 4, first cross butt joint plate; 5, second cross butt joint plate; 51, fixed connecting rib; 6, main rib beam; 7, floor panel; 8, rib beam stirrup; 9, side bulging plate; 10, butt joint; 11, rib beam reinforcing rib; 12, panel support; 13, secondary rib beam; 14, fixed plate; 15, fixed screw; 16, hollow layer; 17, core mold; 171, thermal insulation layer; 172, fire barrier layer; 173, sound insulation layer; 174, fixed steel reinforcement frame. DETAILED DESCRIPTION

[0020] 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. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] In the description of the utility model, it is necessary to explain that the orientation or positional relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or positional relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. The embodiments will be described below according to the overall structure of the utility model.

[0022] Referring to Figures 1 to 5 In the utility model embodiment, a prefabricated bottom plate for hollow floor, including: prefabricated bottom plate, mainly by A bottom plate 1 and B bottom plate 2 are constituted, the inner side of the two bottom plates is fixedly inserted with bottom plate stress reinforcement 3, to enhance its structural strength and bearing capacity, A bottom plate 1 side is equipped with the first cross docking plate 4, and B bottom plate 2 side is equipped with the second cross docking plate 5, when docking, the side of the first cross docking plate 4 and the second cross docking plate 5 is inserted and fastened through the fixed connecting rib 51, to realize the stable connection of A bottom plate 1 and B bottom plate 2, this design not only simplifies the installation process, but also improves the connection strength between bottom plate and overall stability.

[0023] Above the main rib beam 6 and the secondary rib beam 13, the rib beam hoop 8 is fixedly inserted to enhance the shear capacity and overall stability of the main rib beam 6, the outer side of the main rib beam 6 is fixedly provided with the side bulging plate 9, the surface of the side bulging plate 9 is provided with the docking port 10, the connection with other components is facilitated, and the inner side of the main rib beam 6 is also fixedly inserted with the rib beam reinforcing rib 11, to further improve the carrying capacity.

[0024] Above the side flange plate 9, the panel support 12 is fixedly arranged, and the floor slab 7 is fixedly arranged above the panel support 12, thereby forming the main bearing and covering part of the floor, in addition, the secondary rib beam 13 is clamped to the side of the abutment 10, the secondary rib beam 13 is fixedly connected with the side flange plate 9 of the main rib beam 6 through the fixed screw rod 15 fixedly screwed above the fixed plate 14 at one end of the outer side of the secondary rib beam 13, and the stability and integrity of the whole rib beam structure are ensured.

[0025] The core mold 17 is arranged in the hollow layer 16 formed by the intersection of the main rib beam 6 and the secondary rib beam 13, the core mold 17 comprises the heat preservation layer 171 arranged above the hollow layer 16, the heat preservation layer 171 is filled with heat preservation cotton inside, so as to enhance the heat preservation performance of the floor, the fireproof layer 172 is fixedly arranged above the heat preservation layer 171, so as to improve the fireproof performance of the floor, and the sound insulation layer 173 is fixedly arranged above the fireproof layer 172, so as to reduce the spread of noise and improve the sound insulation effect of the floor.

[0026] The fixed steel bar frame 174 is arranged above the sound insulation layer 173, the fixed steel bar frame 174 is composed of a plurality of transverse fixed steel bars and longitudinal fixed steel bars, the steel bars are anchored between the main rib beam 6 and the secondary rib beam 13, and are used for fixing and limiting the core mold 17 to prevent displacement or deformation of the core mold 17, and the design not only improves the comprehensive performance of the floor, but also ensures the stability and durability of the core mold 17.

[0027] The working principle of the utility model is:

[0028] The prefabricated bottom plate is mainly composed of A bottom plate 1 and B bottom plate 2, and the bottom plate stress steel bars 3 are fixedly inserted into the inner sides of the two to enhance the structural strength, the first cross butt joint plate 4 is arranged on the side surface of the A bottom plate 1, and the second cross butt joint plate 5 is arranged on the side surface of the B bottom plate 2, the stable connection of the A bottom plate 1 and the B bottom plate 2 is realized through the mutual butt joint of the two and the insertion and fastening of the fixed connecting rib 51,

[0029] The main rib beam 6 is fixedly arranged above the A bottom plate 1 and the B bottom plate 2, the main rib beam 6 not only enhances the bearing capacity of the whole structure, but also provides support for the structure above it, the rib beam stirrup 8 above the main rib beam 6 and the secondary rib beam 13 further enhances the structural stability, the abutment 10 is arranged on the surface of the side flange plate 9, the abutment 10 is convenient for connection with other components, and the rib beam reinforcing rib 11 is fixedly inserted into the inner side of the main rib beam 6, and the bearing capacity is further improved.

[0030] Above the side flange plate 9, a panel support 12 is fixedly arranged, and above the panel support 12, a floor deck 7 is fixedly arranged, forming the main load-bearing and covering part of the floor, meanwhile, a secondary rib beam 13 is clamped on the side of the interface 10, the arrangement of the secondary rib beam 13 enhances the lateral bearing capacity of the floor, and together with the main rib beam 6, forms the skeleton structure of the floor, and a fixed screw rod 15 is arranged at one end of the outer side of the secondary rib beam 13, the secondary rib beam 13 is fixedly connected with the side flange plate 9 of the main rib beam 6 through the fixed screw rod 15, ensuring the stability of the whole rib beam structure;

[0031] The intersection space of the main rib beam 6 and the secondary rib beam 13 forms a hollow layer 16, which reduces the self-weight of the floor and improves its heat preservation, sound insulation and other performances, and a core mold 17 is arranged in the hollow layer 16, the core mold 17 includes a heat preservation layer 171, a fireproof layer 172 and a sound insulation layer 173, which respectively provide the functions of heat preservation, fireproofing and sound insulation, improving the comprehensive performance of the floor, and the heat preservation layer 171 is filled with heat preservation cotton, further enhancing its heat preservation effect;

[0032] In addition, a fixed steel bar frame 174 is arranged above the core mold 17, the fixed steel bar frame 174 is composed of multiple groups of transverse fixed steel bars and longitudinal fixed steel bars, the steel bars are anchored between the main rib beam 6 and the secondary rib beam 13, and are used for fixing and limiting the core mold 17, preventing displacement or deformation of the core mold 17, thereby ensuring the stability and durability of the floor structure.

[0033] The above describes only the preferred specific implementation 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 prefabricated floor panel for a hollow floor construction, characterized in that Include: A bottom plate (1), B bottom plate (2), the A bottom plate (1) and the B bottom plate (2) inside are fixedly inserted with bottom plate stress reinforcement (3), the A bottom plate (1) side is fixedly provided with first cross docking plate (4), the B bottom plate (2) side is fixedly provided with second cross docking plate (5), the first cross docking plate (4) and the second cross docking plate (5) side are fixedly inserted with fixed connection rib (51), the A bottom plate (1) and the B bottom plate (2) are fixedly provided with main rib beam (6) above.

2. A precast floor panel for a hollow floor construction according to claim 1, characterized in that The main rib beam (6) is fixedly inserted with rib beam stirrup (8) above, the outer side of the main rib beam (6) is fixedly provided with side convex plate (9), the surface of the side convex plate (9) is provided with docking interface (10), the inner side of the main rib beam (6) is fixedly inserted with rib beam reinforcing bar (11), the face plate support (12) is fixedly provided above the side convex plate (9), the floor cover panel (7) is fixedly provided above the face plate support (12), the side of the docking interface (10) is clamped with secondary rib beam (13), the outer side of the secondary rib beam (13) is fixedly provided with fixed plate (14), the fixed plate (14) is fixedly screwed with fixed screw rod (15) above, the main rib beam (6) and the secondary rib beam (13) cross space form hollow layer (16).

3. A precast floor panel for a hollow floor construction according to claim 2, characterized in that The core mold (17) is arranged in the hollow layer (16), the core mold (17) comprises a heat preservation layer (171) arranged above the hollow layer (16), a fireproof layer (172) fixedly arranged above the heat preservation layer (171), a sound insulation layer (173) fixedly arranged above the fireproof layer (172), and a fixed steel bar support (174) arranged above the sound insulation layer (173).

4. A precast floor panel for use in a hollow floor construction according to claim 2, characterized in that The A bottom plate (1) and the B bottom plate (2) are mutually docked together through the first cross docking plate (4) and the second cross docking plate (5), and the first cross docking plate (4) and the second cross docking plate (5) are tightly docked through the fixed connection rib (51).

5. A precast floor panel for use in a hollow floor construction according to claim 2, characterized in that A plurality of groups of the main rib beam (6) and the secondary rib beam (13) are provided, the rib beam stirrup (8) is also fixedly arranged above the secondary rib beam (13), the main rib beam (6) and the secondary rib beam (13) are fixedly arranged above the A bottom plate (1) and the B bottom plate (2) through the rib beam stirrup (8), the fixed screw rod (15) on the side of the secondary rib beam (13) is fixedly screwed above the side convex plate (9) on the side of the main rib beam (6), and the face plate support (12) is welded between the side convex plate (9) and the floor cover panel (7).

6. A precast floor panel for use in a hollow floor construction according to claim 3, characterized in that The core mold (17) is sized to match the size of the hollow layer (16), the fixed steel bar frame (174) is composed of multiple groups of transverse fixed steel bars and longitudinal fixed steel bars, which are anchored between the main rib beam (6) and the secondary rib beam (13), the fixed steel bar frame (174) is located directly above the core mold (17) for fixing and limiting the core mold (17), and the thermal insulation layer (171) is filled with thermal insulation cotton.

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