Steel structure modular building floor system

Abstract

This invention relates to the field of building structure technology, and in particular to a steel structure modular building floor system, comprising a steel-wood composite floor slab, a hollow truss, and an outer frame; the outer frame includes a transverse bottom frame beam, a longitudinal bottom frame beam, a transverse top frame beam, and a longitudinal top frame beam; the transverse bottom frame beam and the longitudinal bottom frame beam form a rectangular frame structure; the transverse top frame beam and the longitudinal top frame beam form a rectangular frame structure opposite to the transverse bottom frame beam and the longitudinal bottom frame beam; the steel-wood composite floor slab is fixedly connected to the transverse bottom frame beam and the longitudinal bottom frame beam on all four sides; the hollow truss is located below the steel-wood composite floor slab and connects to the steel-wood composite floor slab, the longitudinal bottom frame beam, and the corresponding longitudinal top frame beam. By combining the steel-wood composite floor slab, the hollow truss, and the outer frame, a stable building structure with high load-bearing capacity is formed.

Description

Technical Field

[0001] This invention relates to the field of building structure technology, and in particular to a steel structure modular building floor system. Background Technology

[0002] Steel-structure modular housing is assembled from individual steel structural modules. Compared to traditional construction methods, modular construction simplifies on-site installation and accelerates construction. To further reduce on-site work, all finishing work, including the floor slab and ceiling, can be completed in the factory. Each module typically consists of frame beams, frame columns, a floor slab, a roof slab, and walls. The floor slab is usually constructed by first placing secondary beams between the bottom frame beams, and then laying the floor slab on top of them.

[0003] Floor slabs can be made of concrete, composite, or prefabricated cement fiberboard. Concrete and composite floor slabs offer high load-bearing capacity and vibration comfort. However, they are also heavy, leading to greater structural response under seismic loads. The beam-column system of modular frames also requires more steel, and the increased weight results in higher transportation and installation costs, hindering the widespread application of modular structures. Cement fiberboard or other lightweight floor slabs, due to their lighter weight, offer less comfort during use, with noticeable vibrations during pedestrian traffic.

[0004] Modular roof slabs typically have secondary beams installed between the bottom frame beams, with the ceiling installed beneath them. There are usually no connections between the upper and lower modules except at the corners; the floor slab is entirely supported by the bottom beams. To meet requirements for load-bearing capacity, stiffness, and comfort, the bottom beams and floor slabs require a large cross-sectional height, affecting the usable height within the modules. The roof beams only bear the ceiling load, resulting in some material waste. Summary of the Invention

[0005] The purpose of this invention is to provide a steel structure modular building floor system to solve at least one of the technical problems existing in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention provides a steel structure modular building floor system, including steel-wood composite floor slabs, hollow trusses and an outer frame;

[0007] The outer frame includes a transverse bottom frame beam, a longitudinal bottom frame beam, a transverse top frame beam, and a longitudinal top frame beam;

[0008] The transverse bottom frame beam and the longitudinal bottom frame beam form a rectangular frame structure;

[0009] The transverse top frame beam and the longitudinal top frame beam form a rectangular frame structure opposite to the transverse bottom frame beam and the longitudinal bottom frame beam;

[0010] The steel-wood composite floor slab is fixedly connected to the transverse bottom frame beam and the longitudinal bottom frame around its perimeter;

[0011] The hollow truss is located below the steel-wood composite floor slab and is connected to the steel-wood composite floor slab, the longitudinal bottom frame beam, and the corresponding longitudinal top frame beam.

[0012] Furthermore, the hollow truss includes a bottom beam, a top beam, and a connecting plate;

[0013] The bottom beam and the top beam are T-shaped beams, with the lower end of the bottom beam abutting against the upper end of the top beam and connected by the connecting plate;

[0014] The upper end of the bottom beam is fixedly connected to the steel-wood composite floor slab, and its two ends in the axial direction are fixedly connected to the longitudinal bottom frame beam.

[0015] The two ends of the top plate beam in the axial direction are fixedly connected to the longitudinal top frame beam.

[0016] Furthermore, the bottom plate beam, the top plate beam, and the connecting plate are provided with connecting holes at corresponding positions, and fasteners pass through the connecting holes to securely connect the bottom plate beam, the top plate beam, and the connecting plate.

[0017] Furthermore, multiple bottom plate beams are arranged parallel to each other and equidistantly on the outer frame;

[0018] Multiple top plate beams are arranged parallel to each other and at equal intervals on the outer frame.

[0019] Furthermore, the steel-wood composite floor slab includes a top panel, a bottom panel, foamed concrete, short wooden columns, and edge-sealing joists;

[0020] The upper panel and the lower panel are rectangles of the same shape and size and are arranged opposite to each other;

[0021] The edges of the upper panel and the lower panel are connected and sealed by the edge sealing keel;

[0022] The wooden short post is fixedly installed between the upper panel and the lower panel;

[0023] The enclosed area encompassed by the upper panel, the lower panel, and the edge sealing keel is filled with the foamed concrete.

[0024] Furthermore, self-tapping screws are provided opposite to each other on the top plate and the bottom plate;

[0025] The self-tapping screws provided on the top plate and the bottom plate are respectively inserted into the upper and lower ends of the wooden post, thereby fixing the wooden post.

[0026] Furthermore, the short wooden posts are arranged in an equally spaced array.

[0027] Furthermore, the steel-wood composite floor slab is fixedly connected to the outer frame through a connecting node structure.

[0028] Furthermore, this also includes the lower ceiling;

[0029] The lower ceiling is rectangular, with its four sides fixedly connected to the horizontal top frame beam and the vertical top frame beam, respectively.

[0030] The lower ceiling is fixedly installed at the lower end of the top slab beam.

[0031] Furthermore, the connection node structure includes a first node plate, a second node plate, and bolts;

[0032] A first node plate is fixedly installed on the outer frame, and a second node plate is fixedly installed on the lower plate;

[0033] The relative positions of the first node plate and the second node plate are fixedly connected by bolts.

[0034] By adopting the above technical solution, the present invention has the following beneficial effects:

[0035] (1) By combining steel-wood composite floor slabs, open trusses and external frames, a stable and load-bearing building structure is formed. By connecting the bottom beam and top beam of the module with gusset plates, the integrity of the module structure is enhanced, the stiffness of the floor slab supporting structure is improved, the vibration response of the floor slab under pedestrian loads can be reduced, and the comfort of the structure can be improved.

[0036] (2) Steel-wood composite floor slabs combine the strength of steel with the lightweight properties of wood, which reduces the overall building weight and lowers material costs. At the same time, the use of foamed concrete further reduces the weight of the floor slabs and provides good thermal insulation performance.

[0037] (3) The design of hollow trusses and steel-wood composite floor slabs enhances the seismic performance of the floor slab system, enabling it to provide better protection in natural disasters such as earthquakes. Attached Figure Description

[0038] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0039] Figure 1This is a schematic diagram of the upper part of the hollow truss structure from a downward view.

[0040] Figure 2 This is a planar structural diagram of the lower half of the hollow truss from a top-down perspective.

[0041] Figure 3 A schematic diagram of the planar structure from the first perspective before the installation of the hollow truss;

[0042] Figure 4 A schematic diagram of the planar structure from a second perspective before the installation of the hollow truss;

[0043] Figure 5 This is a schematic diagram of the planar structure from a second perspective after the hollow truss has been installed.

[0044] Figure 6 This is a partial schematic diagram of a steel-wood composite floor slab.

[0045] Figure 7 A cross-sectional view of steel-wood composite floor slabs installed on an external frame;

[0046] Figure 8 This is a schematic diagram of the planar structure of the first type of connection node structure;

[0047] Figure 9 This is a schematic diagram of the planar structure of the second type of connection node structure;

[0048] Figure 10 This is a schematic diagram of the planar structure of the third type of connection node structure;

[0049] Figure 11 This is a schematic diagram of the planar structure of the fourth type of connection node structure.

[0050] Figure label:

[0051] 1-Steel-wood composite floor slab; 11-Top panel; 12-Bottom panel; 13-Foamed concrete; 14-Short wooden column; 15-Edge sealing keel; 16-Self-tapping screw; 2-Hollow truss; 21-Bottom beam; 22-Top beam; 23-Draped plate; 24-Lower ceiling; 25-Connecting hole; 26-Fastener; 3-Outer frame; 31-Transverse bottom frame beam; 32-Longitudinal bottom frame beam; 33-Transverse top frame beam; 34-Longitudinal top frame beam; 4-Connecting node structure; 41-Welding point; 42-First node plate; 43-Second node plate; 44-Bolt; 45-Extension plate; 46-Longitudinal stiffening rib; 47-Transverse stiffening rib. Detailed Implementation

[0052] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 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 invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0054] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0055] It should also be noted that the specific embodiments or implementation methods described below are a series of optimized settings listed by the present invention to further explain the specific content of the invention, and these settings can be combined or used in conjunction with each other.

[0056] The present invention will be further explained below with reference to specific embodiments.

[0057] Example 1

[0058] like Figure 1-5 As shown, this embodiment provides a steel structure modular building floor system, including a steel-wood composite floor slab 1, a hollow truss 2, and an outer frame 3;

[0059] The outer frame 3 includes a transverse bottom frame beam 31, a longitudinal bottom frame beam 32, a transverse top frame beam 33, and a longitudinal top frame beam 34;

[0060] The transverse bottom frame beam 31 and the longitudinal bottom frame beam 32 form a rectangular frame structure;

[0061] The transverse top frame beam 33 and the longitudinal top frame beam 34 form a rectangular frame structure opposite to the transverse bottom frame beam 31 and the longitudinal bottom frame beam 32;

[0062] The steel-wood composite floor slab 1 is fixedly connected to the transverse bottom frame beam 31 and the longitudinal bottom frame around its perimeter;

[0063] The hollow truss 2 is located below the steel-wood composite floor slab 1 and is connected to the steel-wood composite floor slab 1, the longitudinal bottom frame beam 32 and the corresponding longitudinal top frame beam 34.

[0064] like Figure 3-5 As shown, as a further embodiment of this example, the hollow truss 2 includes a bottom plate beam 21, a top plate beam 22, and a connecting plate 23;

[0065] The bottom plate beam 21 and the top plate beam 22 are T-shaped beams. The lower end of the bottom plate beam 21 abuts against the upper end of the top plate beam 22 and is connected by the gusset plate 23.

[0066] The upper end of the bottom beam 21 is fixedly connected to the steel-wood composite floor slab 1, and its two ends in the axial direction are fixedly connected to the longitudinal bottom frame beam 32.

[0067] The two ends of the top plate beam 22 in the axial direction are fixedly connected to the longitudinal top frame beam 34.

[0068] The hollow truss 2 disclosed in this application is formed by connecting the bottom plate beam 21 and the top plate beam 22 through the connecting plate 23. The hollow truss 2 makes full use of the stiffness of the top plate beam 22 and the bottom plate beam 21, enhancing the integrity of the steel structure modular building floor system. Compared with the traditional support structure under the composite floor slab, the hollow truss 2 structure disclosed in this application increases the support stiffness under the composite floor slab, providing a more stable support force.

[0069] like Figure 3 As shown, as a further embodiment of this example, a lower ceiling 24 is also included;

[0070] The lower ceiling 24 is rectangular, and its four sides are fixedly connected to the horizontal top frame beam 33 and the longitudinal top frame beam 34, respectively.

[0071] The lower ceiling 24 is fixedly installed at the lower end of the top beam 22.

[0072] like Figure 4-5 As shown, as a further embodiment of this example, the bottom beam 21, the top beam 22 and the gusset plate 23 are provided with connecting holes 25 at corresponding positions, and fasteners 26 pass through the connecting holes 25 to fasten the bottom beam 21, the top beam 22 and the gusset plate 23.

[0073] The hollow truss 2 disclosed in this application can be installed on-site simply by installing fasteners 26 in the connection holes 25 provided on the bottom beam 21, the top beam 22, and the gusset plate 23. Therefore, the on-site construction and installation operation is relatively simple. In addition, the interior decoration works of the modular building floor system can all be prefabricated and installed in the factory, requiring only a few openings to be reserved at the position of the top beam 22.

[0074] As a further embodiment of this embodiment, a plurality of the bottom plate beams 21 are arranged parallel to each other and at equal intervals on the outer frame 3;

[0075] Multiple top plate beams 22 are arranged parallel to each other and at equal intervals on the outer frame 3.

[0076] By adopting the above technical solution, the present invention has the following beneficial effects:

[0077] (1) The hollow truss structure 2 increases the support stiffness compared with the traditional composite floor slab support structure, providing more stable support for the floor slab, and also helps to improve the load-bearing capacity and seismic performance of the floor slab system.

[0078] (2) The installation process of the hollow truss 2 is simplified. It can be installed by setting fasteners 26 in the connection holes 25 set on the bottom beam 21, top beam 22 and gusset plate 23, which greatly reduces the workload of on-site construction. At the same time, the interior decoration of the modular building floor system can be prefabricated and installed in the factory, which further improves the construction efficiency.

[0079] (3) The steel structure modular building floor system helps reduce material and production costs through modular design and standardized production. At the same time, the design of the hollow truss structure also optimizes material utilization and reduces unnecessary waste.

[0080] Example 2

[0081] like Figure 6-7 As shown, this embodiment provides a specific structure of the steel-wood composite floor slab 1 in Embodiment 1.

[0082] The steel-wood composite floor slab 1 includes an upper panel 11, a lower panel 12, foamed concrete 13, short wooden columns 14, and edge sealing joists 15;

[0083] The upper panel 11 and the lower panel 12 are rectangles of the same shape and size and are arranged opposite to each other;

[0084] The edges of the upper panel 11 and the lower panel 12 are connected and sealed by the edge sealing keel 15;

[0085] The wooden short post 14 is fixedly installed between the upper panel 11 and the lower panel 12;

[0086] The enclosed area encompassed by the upper panel 11, the lower panel 12, and the edge sealing keel 15 is filled with the foamed concrete 13.

[0087] like Figure 6-7 As shown, as a further embodiment of this example, self-tapping screws 16 are provided opposite to each other on the upper panel 11 and the lower panel 12.

[0088] The self-tapping screws 16 provided on the upper panel 11 and the lower panel 12 are respectively inserted into the upper and lower ends of the wooden short post 14, thereby fixing the wooden short post 14.

[0089] like Figure 6 As shown, in a further embodiment of this example, the wooden short posts 14 are distributed in an equally spaced array.

[0090] The steel-wood composite floor slab 1 disclosed in this embodiment can achieve the floor slab stiffness, strength and comfort indexes required by the specifications with a smaller structural weight. It can reduce the amount of steel and foamed concrete 13 used, reduce the structural weight, reduce the cost of modular structures, and enhance product competitiveness.

[0091] By adopting the above technical solution, the present invention has the following beneficial effects:

[0092] (1) The steel-wood composite floor slab 1 achieves good overall structural performance through the organic combination of the upper panel 11, the lower panel 12, the foamed concrete 13, the short wooden columns 14 and the edge sealing keel 15. This design can achieve the floor slab stiffness, strength and comfort index required by the specifications with a small structural weight, ensuring the safety and stability of the structure.

[0093] (2) Due to the compact and efficient structure of this composite floor slab, the amount of steel and foamed concrete 13 used can be significantly reduced. This not only reduces the structural weight, but also reduces the use of raw materials, thereby reducing the cost of the modular structure and enhancing the market competitiveness of the product.

[0094] (3) The wooden short posts 14 are fixed between the upper panel 11 and the lower panel 12 by self-tapping screws 16, which simplifies the installation process and improves construction efficiency. The equally spaced array of wooden short posts 14 further ensures the uniformity and stability of the structure, and facilitates construction control and quality control.

[0095] (4) Foamed concrete is used as a filling material, which has excellent properties such as lightweight, high strength, heat insulation and sound insulation.

[0096] Example 3

[0097] like Figure 8-11As shown, this embodiment provides a connection node structure 4 for the fixed connection between the steel-wood composite floor slab 1 and the outer frame 3.

[0098] like Figure 8 As shown, this is the first type of connection node structure 4 disclosed in this embodiment; the outer side of the edge sealing keel 15 is fixedly connected to the outer frame 3 by welding. Welding point 41 is shown below. Figure 8 As shown.

[0099] like Figure 9 As shown, this is the second type of connection node structure 4 disclosed in this embodiment; a first node plate 42 is fixedly disposed on the outer frame 3, and a second node plate 43 is fixedly disposed on the lower panel 12;

[0100] The relative positions of the first node plate 42 and the second node plate 43 are fixedly connected by bolts 44, thereby realizing the fixed connection between the steel-wood composite floor slab 1 and the outer frame 3.

[0101] like Figure 10 As shown, this is the third type of connection node structure 4 disclosed in this embodiment; the outer frame 3 is provided with an outward plate 45, a longitudinal stiffening rib 46 and a transverse stiffening rib 47;

[0102] The vertical height of the longitudinal stiffening rib 46 is on the same horizontal plane as the lower panel 12;

[0103] The transverse stiffening rib 47 is provided with one or more;

[0104] The widths of the outrigger plate 45, the transverse stiffening rib 47, and the longitudinal stiffening rib 46 are the same.

[0105] The longitudinal stiffening rib 46 is connected to the edge sealing keel 15 by welding at the contact point.

[0106] The extension plate 45 and the edge sealing keel 15 are connected by welding at their contact points.

[0107] Welding point 41 Figure 10 As shown.

[0108] like Figure 11 As shown, this is the fourth type of connection node structure 4 disclosed in this embodiment; the outer frame 3 is provided with an outward plate 45, a longitudinal stiffening rib 46 and a transverse stiffening rib 47;

[0109] The vertical height of the longitudinal stiffening rib 46 is on the same horizontal plane as the lower panel 12;

[0110] The transverse stiffening rib 47 is provided with one or more;

[0111] The widths of the outrigger plate 45, the transverse stiffening rib 47, and the longitudinal stiffening rib 46 are the same.

[0112] A first node plate 42 is provided on the transverse stiffening rib 47;

[0113] The upper end of the first node plate 42 abuts against the lower panel 12;

[0114] A second node plate 43 is fixedly installed on the lower panel 12;

[0115] The relative positions of the first node plate 42 and the second node plate 43 are fixedly connected by bolts 44, thereby realizing the fixed connection between the steel-wood composite floor slab 1 and the outer frame 3.

[0116] In addition, such as Figure 9 and 11 As shown, in the second and fourth connection node structures 4, the outer side of the edge sealing keel 15 can be fixedly connected to the outer frame 3 by welding, just like the first connection node structure 4, thereby further improving the connection stability of the connection node structure 4.

[0117] By adopting the above technical solution, the present invention has the following beneficial effects:

[0118] (1) The first type of connection node structure 4 is connected to the outer frame 3 by welding the outer side of the edge sealing keel 15, which realizes the firm fixation of the steel-wood composite floor slab 1 and the outer frame 3. This connection method is simple and direct, can withstand large loads, and ensures the stability and safety of the structure.

[0119] (2) The second type of connection node structure 4 uses node plates (first node plate 42 and second node plate 43) connected by bolts 44, which makes the connection between the steel-wood composite floor slab 1 and the outer frame 3 more flexible and detachable. This connection method is convenient for construction and maintenance, and the connection position can be adjusted according to the actual situation, which improves the adaptability and variability of the structure.

[0120] (3) The third type of connection node structure 4 enhances the rigidity and load-bearing capacity of the outer frame 3 by setting an overhanging plate 45, longitudinal stiffening ribs 46, and transverse stiffening ribs 47 on the outer frame 3. The welding connection between the longitudinal stiffening ribs 46 and the edge banding ribs 15, as well as the welding connection between the overhanging plate 45 and the edge banding ribs 15, further improves the strength and stability of the connection. This structure is suitable for occasions requiring higher load-bearing capacity and stability.

[0121] (4) The fourth type of connection node structure 4 combines the advantages of the third type of connection node structure 4, and sets a first node plate 42 on the transverse stiffening rib 47, which is connected to the second node plate 43 on the lower panel 12 by bolts 44. This connection method not only improves the strength and stability of the structure, but also increases the flexibility and disassembly of the connection. At the same time, the use of node plates makes the stress on the connection part more uniform, extending the service life of the structure. In addition, this connection method is also convenient for construction and maintenance, improving construction efficiency and quality.

[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A steel structure modular building floor system, characterized in that, Includes steel-wood composite floor slabs, open-web trusses, and external frames; The outer frame includes a transverse bottom frame beam, a longitudinal bottom frame beam, a transverse top frame beam, and a longitudinal top frame beam; The transverse bottom frame beam and the longitudinal bottom frame beam form a rectangular frame structure; The transverse top frame beam and the longitudinal top frame beam form a rectangular frame structure opposite to the transverse bottom frame beam and the longitudinal bottom frame beam; The steel-wood composite floor slab is fixedly connected to the transverse bottom frame beam and the longitudinal bottom frame around its perimeter; The hollow truss is located below the steel-wood composite floor slab and is connected to the steel-wood composite floor slab, the longitudinal bottom frame beam, and the corresponding longitudinal top frame beam. The hollow truss includes a bottom beam, a top beam, and a connecting plate; The bottom beam and the top beam are T-shaped beams, with the lower end of the bottom beam abutting against the upper end of the top beam and connected by the connecting plate; The upper end of the bottom beam is fixedly connected to the steel-wood composite floor slab, and its two ends in the axial direction are fixedly connected to the longitudinal bottom frame beam. The two ends of the top plate beam in the axial direction are fixedly connected to the longitudinal top frame beam; The steel-wood composite floor slab includes a top panel, a bottom panel, foamed concrete, short wooden columns, and edge-sealing joists; The upper panel and the lower panel are rectangles of the same shape and size and are arranged opposite to each other; The edges of the upper panel and the lower panel are connected and sealed by the edge sealing keel; The wooden short post is fixedly installed between the upper panel and the lower panel; The enclosed area encompassed by the upper panel, the lower panel, and the edge sealing keel is filled with the foamed concrete; The steel-wood composite floor slab is fixedly connected to the outer frame through a connecting node structure; The connection node structure includes a first node plate, a second node plate, and bolts; A first node plate is fixedly installed on the outer frame, and a second node plate is fixedly installed on the lower plate; The relative positions of the first node plate and the second node plate are fixedly connected by bolts.

2. The steel structure modular building floor system according to claim 1, characterized in that, The bottom plate beam, the top plate beam, and the connecting plate are provided with connecting holes at corresponding positions, and fasteners pass through the connecting holes to securely connect the bottom plate beam, the top plate beam, and the connecting plate.

3. The steel structure modular building floor system according to claim 1, characterized in that, Multiple bottom plate beams are arranged parallel to each other and at equal intervals on the outer frame; Multiple top plate beams are arranged parallel to each other and at equal intervals on the outer frame.

4. The steel structure modular building floor system according to claim 1, characterized in that, Self-tapping screws are provided on the top plate and the bottom plate respectively; The self-tapping screws provided on the top plate and the bottom plate are respectively inserted into the upper and lower ends of the wooden post, thereby fixing the wooden post.

5. The steel structure modular building floor system according to claim 1, characterized in that, The short wooden posts are arranged in an array with equal spacing.

6. The steel structure modular building floor system according to claim 1, characterized in that, This also includes the lower ceiling; The lower ceiling is rectangular, with its four sides fixedly connected to the horizontal top frame beam and the vertical top frame beam, respectively. The lower ceiling is fixedly installed at the lower end of the top slab beam.

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