Double-deck modular floor structure

Abstract

The utility model provides a kind of double-layer module floor structure, it is related to building technology field, including upper module roof, lower module floor, connecting steel plate, upper module roof includes first steel frame beam, first time keel, fireproof rock wool layer, fireproof gypsum board, fireproof rock wool layer is arranged in the space that first steel frame beam with first time keel or first time keel surrounds, fireproof gypsum board is arranged below fireproof rock wool layer, lower module includes second steel frame beam, second time keel, double-layer cement fiber board, second steel frame beam surrounds integral frame, second time keel is installed in second steel frame beam frame, double-layer cement fiber board is installed above first steel frame beam and second time keel, connecting steel plate is connected with first steel frame beam and second steel frame beam by bolt assembly, i.

Description

Technical Field

[0001] This utility model relates to the field of building technology, and in particular to a double-layer modular floor slab structure. Background Technology

[0002] With the increasing number of data centers rising from the ground, modular data centers have emerged as a construction option that offers factory prefabrication, convenient installation, and rapid delivery. Modular data centers are typically constructed using stacked shipping containers or steel frame structures. Because data centers have very high requirements for fire resistance, waterproofing, and insulation, they usually employ cast-in-place concrete floor slabs, which contradicts the rapid delivery principle of modular data center projects. Furthermore, single lightweight floor slabs cannot simultaneously meet the requirements of load-bearing capacity and fire resistance. Utility Model Content

[0003] The purpose of this utility model is to provide a double-layer modular floor structure to solve the technical problem that existing single lightweight floor slabs cannot simultaneously meet the requirements of load-bearing and fire resistance. The various technical effects of the preferred technical solutions provided by this utility model are detailed below.

[0004] To achieve the above objectives, the present invention provides the following technical solution: This utility model provides a double-layer modular floor structure, including an upper modular top slab, a lower modular floor, and connecting steel plates. The upper modular top slab includes a first steel frame beam, a first joist, a fireproof rock wool layer, and a fireproof gypsum board. The first steel frame beam forms an integral frame, and the first joist is installed within the first steel frame beam frame, with its upper end face flush with the upper end face of the first steel frame beam. The fireproof rock wool layer is disposed within the space enclosed by the first steel frame beam and the first joist, or the space enclosed by the first joist. Fire-resistant gypsum board is placed below the fireproof rock wool layer and installed on the first keel; the lower module includes a second steel frame beam, a second keel, and a double-layer cement fiberboard. The second steel frame beam forms an overall frame, the second keel is installed inside the second steel frame beam frame, and the upper end face of the second keel is flush with the upper end face of the second steel frame beam. The double-layer cement fiberboard is installed above the first steel frame beam and the second keel. The connecting steel plate is connected to the first steel frame beam and the second steel frame beam by bolt assemblies.

[0005] Preferably, a fireproof adhesive layer is provided in the gap between the fireproof gypsum board and the first steel frame beam and the first keel.

[0006] Preferably, a first steel plate is provided on the top of the upper module.

[0007] Preferably, an inorganic pre-coated board is provided on the side of the fireproof gypsum board away from the first keel.

[0008] Preferably, a rubber strip is provided on the top of the second steel frame beam and the top of the second keel, and the rubber strip has an adhesive backing.

[0009] Preferably, a floor adhesive layer is provided on the side of the double-layer cement fiberboard away from the second keel.

[0010] The technical solution provided in this application document has the following beneficial effects: This utility model provides a double-layer modular floor structure, including an upper modular top slab, a lower modular floor, and connecting steel plates. The upper modular top slab includes a first steel frame beam, a first joist, a fireproof rock wool layer, and a fireproof gypsum board. The first steel frame beam forms an overall frame, and the first joist is installed within the first steel frame beam frame, thus ensuring the overall steel structure of the floor slab and providing a fixed position for the fireproof gypsum board. To ensure overall fire resistance, the fireproof rock wool layer is placed within the space enclosed by the first steel frame beam and the first joist, i.e., the thickness of the fireproof rock wool layer is the same as that of the first joist, and it fills the space enclosed by adjacent first joists and the space enclosed by the first joist and the first steel frame beam, increasing fire resistance and improving the thermal insulation performance of the floor slab. Fire-resistant gypsum board is installed below the fire-resistant rock wool layer and on the first joist. To meet the 2-hour fire resistance requirement, the ceiling uses multi-layer fire-resistant gypsum board, arranged in a staggered pattern and fixed to the first joist with self-tapping screws to ensure overall stability. The lower module includes a second steel frame beam, a second joist, and double-layer cement fiberboard. The second steel frame beam forms the overall frame, and the second joist is installed inside the second steel frame beam frame, with its upper surface flush with the upper surface of the second steel frame beam. This ensures the overall steel structure of the floor slab. The double-layer cement fiberboard is installed above the first steel frame beam and the second joist and fixed to the second joist with floor nails, facilitating construction and achieving basic flatness. The space between the double-layer cement fiberboard and the second steel frame beam is sealed with fire-resistant adhesive to form a fire-resistant layer, ensuring fire resistance. To connect the upper module top plate and the lower module floor, the connecting steel plate is connected to the first and second steel frame beams via bolt assemblies. The bolts of the bolt assembly are sequentially passed through the first steel frame beam, the connecting steel plate, and the second steel frame beam to ensure overall stability and the transfer of vertical and horizontal loads throughout the data center. This means the force borne by the second steel frame beam is distributed across the connecting steel plate. This configuration, with the upper module top plate forming the ceiling and the lower module floor forming the ground, creates a floor system. By relying on the load-bearing capacity of the lower module floor on the upper floor and the fireproofing of the lower ceiling, the drawback of a single lightweight floor slab not being able to simultaneously handle load-bearing and fire resistance is effectively solved. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a structural schematic diagram of a double-layer modular floor slab structure provided in Embodiment 1 of this utility model; Figure 2 This is a schematic diagram illustrating the structure after the double-sided modular floor slabs are installed, according to an exemplary embodiment.

[0013] In the diagram: 1. Upper module top plate; 11. First steel frame beam; 12. First keel; 13. Fireproof rock wool layer; 14. Fireproof gypsum board; 15. First steel plate; 16. Inorganic pre-coated board; 2. Lower module floor; 21. Second steel frame beam; 22. Second keel; 23. Double-layer cement fiberboard; 24. Floor mat layer; 25. Rubber strip; 3. Connecting steel plate. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] This specific embodiment provides a double-layer modular floor structure, which solves the drawback of existing single lightweight floor slabs that cannot simultaneously meet the requirements of load-bearing and fire resistance.

[0016] Hereinafter, embodiments will be described with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the utility model as described in the claims. Additionally, the complete contents of the structures represented in the following embodiments are not limited to those necessary for the solution of the utility model as described in the claims.

[0017] Reference Figures 1-2This utility model provides a double-layer modular floor structure, including an upper modular top plate 1, a lower modular floor 2, and connecting steel plates 3. The upper modular top plate 1 includes a first steel frame beam 11, a first keel 12, a fireproof rock wool layer 13, and a fireproof gypsum board 14. The first steel frame beam 11 forms an overall frame, and the first keel 12 is installed within the frame of the first steel frame beam 11, thus ensuring the overall steel structure of the floor slab and providing a fixed position for the fireproof gypsum board. To ensure overall fire resistance, the fireproof rock wool layer 13 is placed within the space enclosed by the first steel frame beam 11 and the first keel 12, or the space enclosed by the first keel 12. That is, the thickness of the fireproof rock wool layer 13 is the same as that of the first keel 12, and it fills the space enclosed by adjacent first keels 12 and the space enclosed by the first keel 12 and the first steel frame beam 11, increasing fire resistance and improving the thermal insulation performance of the floor slab. Specifically, the thickness of the fireproof rock wool layer is 9-11 mm. Fireproof gypsum board 14 is installed below the fireproof rock wool layer 13 and on the first keel 12. To meet the 2-hour fire resistance requirement, the ceiling uses multi-layer fireproof gypsum board, which is staggered and fixed to the first keel 12 with self-tapping screws to ensure overall stability. The lower module includes a second steel frame beam 21, a second keel 22, and double-layer cement fiberboard 23. The second steel frame beam 21 forms the overall frame, and the second keel 22 is installed inside the frame of the second steel frame beam 21. The upper end of the second keel 22 is flush with the upper end of the second steel frame beam 21, thus ensuring the steel structure of the overall floor slab. The double-layer cement fiberboard 23 is installed above the first steel frame beam 11 and the second keel 22. That is, the double-layer cement fiberboard 23 adopts a double-layer size of 1220 mm * 2440 mm, with staggered joints, and is fixed to the second keel 22 with floor nails. The construction is convenient and can achieve basic flatness. A fireproof layer is formed by sealing the space between the double-layer cement fiberboard 23 and the second steel frame beam 21 with fire-retardant adhesive to ensure fire resistance. In order to connect the upper module top plate 1 and the lower module floor 2, the connecting steel plate 3 is connected to the first steel frame beam 11 and the second steel frame beam 21 by bolt assembly. That is, the bolts of the bolt assembly are sequentially passed through the first steel frame beam 11, the connecting steel plate, and the second steel frame beam 21 to ensure the overall stability and ensure the transmission of vertical and horizontal loads of the entire data center. In other words, the force borne by the second steel frame beam 21 can be distributed on the overall connecting steel plate 3.

[0018] This design, employing a double-layer modular floor structure, combines the lower module's bottom structure and the upper module's top structure to form the floor system of the data center. By relying on the lower module's floor for load-bearing capacity and the lower floor's ceiling for fire protection, it effectively solves the problem that a single lightweight floor slab cannot simultaneously handle both load-bearing and fire resistance.

[0019] To further optimize the solution and ensure overall airtightness, the gap between the fireproof gypsum board 14 and the first steel frame beam 11 is sealed with fireproof adhesive to form a fireproof adhesive layer, thereby eliminating the gap between the fireproof gypsum board 14 and the first steel frame beam 11.

[0020] The design was further optimized by installing a first steel plate 15 on the top of the upper module top plate. Specifically, the first steel plate 15 is welded to the first keel 12 and is set within the space enclosed by the first steel frame beam 11 to prevent rainwater from entering the rock wool, ceiling, etc. during transportation, hoisting, and construction, thus effectively ensuring the waterproof performance during the construction of the data center.

[0021] The scheme is further optimized by setting an inorganic pre-coated board 16 on the side of the fireproof gypsum board 14 away from the first keel 12. The inorganic pre-coated board 16 is pasted on the bottom layer of the fireproof gypsum board 14, eliminating the need for further finishing, thus achieving the purpose of rapid construction. In this way, the process is at least 8-12 hours faster than the traditional cast-in-place floor slab latex paint ceiling.

[0022] To further optimize the design, rubber strips 25 are installed on the top of the second steel frame beam 21 and the top of the second keel 22. The rubber strips 25 have adhesive backing, so that the rubber strips 25 can be directly attached to the second steel frame beam 21 and the second keel 22. This can achieve the functions of sound insulation and waterproofing. At the same time, it can also reduce the impact of poor ground flatness caused by unevenness of the second steel frame beam or double-layer cement fiberboard 23 to a certain extent.

[0023] The design is further optimized by setting a floor mat layer 24 on the side of the double-layer cement fiberboard 23 away from the second keel 22. The floor mat is easy to install, has a high degree of flatness, and is also convenient for people to clean the ground.

[0024] Thus, by setting up a double-layer modular floor slab structure, the lower module's bottom structure and the upper module's top structure are combined to form a floor slab system for the data center. Relying on the lower module's floor load-bearing capacity and the lower ceiling's fire resistance, this effectively solves the drawback of a single lightweight floor slab not being able to simultaneously handle load-bearing and fire resistance. It also addresses the problems of complex procedures and long construction cycles associated with traditional cast-in-place concrete floor slabs. In the entire floor slab system, the overall rigidity of the anchoring components can be increased by increasing the cross-sectional height and wall thickness of the secondary joists, reducing steel consumption. Simultaneously, using pre-coated panels for the ceiling and PVC flooring as the floor finish reduces factory prefabrication processes, enabling mechanized installation with excellent precision control and improved production efficiency. The spacing between the second joists (22) is 407 mm, and the spacing between the first joists (12) is 610 mm, accommodating the modules of cement fiberboard and fire-resistant gypsum board, improving installation efficiency. Furthermore, after rigorous load-bearing calculations and fire resistance tests, it meets the requirements for use in existing high, medium, and low power density data centers.

[0025] Through the above design, manufacturing, and installation, a modular data center double-layer modular floor system can be constructed. This method requires joint design based on the specific project's structural calculations and equipment and support load targets. This structure effectively improves the manufacturing efficiency of modular data center floors, while also offering advantages such as ease of operation, energy saving, and convenient replacement. It has significant practical engineering application value and broad application prospects and market demand.

[0026] It should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., used herein to indicate the orientation or positional relationship shown in the accompanying drawings, are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component 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 this utility model. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In this description, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

[0029] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the content not described in detail in some embodiments can be referred to the same or similar content in other embodiments. The multiple solutions provided in this application contain their own basic solutions, are independent of each other, and do not restrict each other, but they can also be combined with each other without conflict to achieve multiple effects.

[0030] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A double-layer modular floor slab structure, characterized in that, The system includes an upper module top plate (1), a lower module floor (2), and a connecting steel plate (3). The upper module top plate (1) includes a first steel frame beam (11), a first keel (12), a fireproof rock wool layer (13), and a fireproof gypsum board (14). The first steel frame beam (11) forms an overall frame. The first keel (12) is installed inside the frame of the first steel frame beam (11), and the upper end face of the first keel (12) is flush with the upper end face of the first steel frame beam (11). The fireproof rock wool layer (13) is located in the space enclosed by the first steel frame beam (11) and the first keel (12) or the first keel (12). The fireproof gypsum board (14) is located in the space enclosed by the first steel frame beam (11) and the first keel (12). The fireproof rock wool layer (13) is installed below and on the first keel (12); the lower module includes a second steel frame beam (21), a second keel (22), and a double-layer cement fiberboard (23). The second steel frame beam (21) forms an overall frame. The second keel (22) is installed inside the frame of the second steel frame beam (21), and the upper end face of the second keel (22) is flush with the upper end face of the second steel frame beam (21). The double-layer cement fiberboard (23) is installed above the first steel frame beam (11) and the second keel (22). The connecting steel plate (3) is connected to the first steel frame beam (11) and the second steel frame beam (21) by bolt assembly.

2. The double-layer modular floor structure according to claim 1, characterized in that, A fireproof adhesive layer is provided in the gap between the fireproof gypsum board (14) and the first steel frame beam (11) and the first keel (12).

3. The double-layer modular floor structure according to claim 1, characterized in that, The top of the upper module is provided with a first steel plate (15).

4. The double-layer modular floor structure according to claim 1, characterized in that, An inorganic pre-coated board (16) is provided on the side of the fireproof gypsum board (14) away from the first keel (12).

5. The double-layer modular floor structure according to claim 1, characterized in that, A rubber strip (25) is provided on the top of the second steel frame beam (21) and the top of the second keel (22), and the rubber strip (25) has adhesive backing.

6. The double-layer modular floor structure according to claim 1, characterized in that, A floor adhesive layer (24) is provided on the side of the double-layer cement fiberboard (23) away from the second keel (22).

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