Steel structure frame concealed beam structure

Abstract

The present application relates to the technical field of steel structure building, and discloses a steel structure frame concealed beam structure, which comprises a floor, a steel structure concealed beam parallel to the floor and at least partially embedded in the floor, and the bottom position of the steel structure concealed beam is higher than or equal to the bottom position of the floor, and the two ends of the steel structure concealed beam are respectively used for connecting with two frame columns or a structural beam and a frame column. The technical problems of weak rigidity and bearing capacity, great construction difficulty and high cost caused by the mode that the frame beams cannot be directly connected between the steel structure frames for ensuring that there is no protruding beam in the room and the concrete concealed beams are used to connect the frame columns are solved.

Description

Technical Field

[0001] This invention relates to the field of steel structure building technology, specifically to a hidden beam structure in a steel frame. Background Technology

[0002] Prefabricated steel structure systems are being used more and more widely in high-rise residential buildings, commercial complexes, hospitals, schools, dormitories and other buildings. The living quality and economic cost of steel structure buildings are receiving increasing attention.

[0003] In prefabricated steel structure projects, to ensure structural stability, two frame columns or a frame column and structural beam 14 are typically connected by frame beam 15, such as... Figure 1 As shown, using frame beam 15 for connection can easily lead to unevenness of the protruding beams in the interior ceiling, affecting the residents' experience. Conversely, if the frame columns are not connected via frame beam 15, it will result in a serious loss of structural lateral stiffness and load-bearing capacity. Related technologies, such as... Figure 2 As shown, to solve the above problems, a concrete hidden beam 9 is usually used to connect the two frame columns to constrain the frame columns. However, the concrete hidden beam 9 itself has weak rigidity and load-bearing capacity. In order to meet the requirements, the diameter of the steel bars in the concrete hidden beam 9 is large and dense. The construction is difficult when welding the steel bars of the concrete hidden beam 9 to the frame columns. In addition, the construction of the stirrups of the concrete hidden beam 9 is time-consuming, labor-intensive and costly. Summary of the Invention

[0004] In view of this, the present invention provides a steel frame with concealed beam structure to solve the problems of weak rigidity and load-bearing capacity, high construction difficulty and high cost of the existing method of using concrete concealed beams to connect frame columns.

[0005] This invention provides a hidden beam structure for a steel frame, comprising:

[0006] Floor slab;

[0007] A steel hidden beam is parallel to the floor slab and is at least partially embedded in the floor slab; the bottom position of the steel hidden beam is higher than or equal to the bottom position of the floor slab, and the two ends of the steel hidden beam are respectively used to connect to two frame columns or a structural beam and a frame column.

[0008] In one optional embodiment, the floor slab includes a first floor slab and a second floor slab; the steel structure concealed beam is embedded between the first floor slab and the second floor slab; when the building surface layer thickness is greater than or equal to 100mm, and the steel structure concealed beam serves as a support for the floor slab, the steel structure concealed beam is arranged upwards, and the bottom of the steel structure concealed beam is flush with the bottom of the floor slab; a first truss is provided in the first floor slab; a second truss is provided in the second floor slab; the first truss is parallel to the steel structure concealed beam; the second truss is perpendicular to the steel structure concealed beam; one end of the lower chord reinforcement of the second truss near the steel structure concealed beam is anchored to the lower flange plate of the steel structure concealed beam; the first floor slab has a first slab surface reinforcement and a first slab bottom reinforcement; one end of the first slab surface reinforcement passes through the first floor slab, and the other end passes through the web of the steel structure concealed beam and connects to the upper chord reinforcement of the second truss; the first slab bottom reinforcement passes through the first floor slab in a direction perpendicular to the steel structure concealed beam.

[0009] In one optional embodiment, the floor slab includes a first floor slab and a second floor slab; the steel structure concealed beam is embedded between the first floor slab and the second floor slab; when the building surface layer thickness is greater than or equal to 100mm, and the steel structure concealed beam serves as a support for the floor slab, the steel structure concealed beam is arranged upwards, and the bottom of the steel structure concealed beam is flush with the bottom of the floor slab; a first truss is provided in the first floor slab; a second truss is provided in the second floor slab; both the first truss and the second truss are perpendicular to the steel structure concealed beam; one end of the lower chord reinforcement of the first truss near the steel structure concealed beam is anchored to the lower flange plate of the steel structure concealed beam; one end of the lower chord reinforcement of the second truss near the steel structure concealed beam is anchored to the lower flange plate of the steel structure concealed beam; the upper chord reinforcement of the first truss is connected to the upper chord reinforcement of the second truss through additional reinforcement on the slab surface; the additional reinforcement on the slab surface passes through the steel structure concealed beam in a direction perpendicular to the steel structure concealed beam;

[0010] Alternatively, the floor slab includes a first floor slab and a second floor slab; the steel structure concealed beam is embedded between the first floor slab and the second floor slab; when the building surface layer thickness is greater than or equal to 100mm, and the steel structure concealed beam serves as a support for the floor slab, the steel structure concealed beam is arranged upwards, and the bottom of the steel structure concealed beam is flush with the bottom of the floor slab; a first truss is provided in the first floor slab; a second truss is provided in the second floor slab; the first truss is parallel to the steel structure concealed beam; the second truss is perpendicular to the steel structure concealed beam; one end of the lower chord reinforcement of the second truss near the steel structure concealed beam is anchored to the lower flange plate of the steel structure concealed beam; the first floor slab has a first slab surface reinforcement and a first slab bottom reinforcement; both the first slab surface reinforcement and the first slab bottom reinforcement are arranged in the first floor slab in a direction perpendicular to the steel structure concealed beam.

[0011] In one optional embodiment, the floor slab includes a first floor slab and a second floor slab; the steel structure concealed beam is embedded between the first floor slab and the second floor slab; when the building surface layer thickness is greater than or equal to 100mm, and the steel structure concealed beam does not serve as a support for the floor slab, the steel structure concealed beam is arranged upwards, and the bottom of the steel structure concealed beam is flush with the bottom of the floor slab; a first truss is provided in the first floor slab; a second truss is provided in the second floor slab; both the first truss and the second truss are parallel to the steel structure concealed beam; the first floor slab has a first top reinforcement and a first bottom reinforcement; one end of the first top reinforcement passes through the first floor slab, and the other end passes through the web of the steel structure concealed beam and into the second floor slab; one end of the first bottom reinforcement passes through the first floor slab, and the other end passes through the web of the steel structure concealed beam and into the second floor slab;

[0012] Alternatively, the floor slab includes a first floor slab and a second floor slab; the steel structure hidden beam is embedded between the first floor slab and the second floor slab; when the building surface layer thickness is greater than or equal to 100mm, and the steel structure hidden beam does not serve as a support for the floor slab, the steel structure hidden beam is arranged upwards, and the bottom of the steel structure hidden beam is flush with the bottom of the floor slab; a first truss is provided in the first floor slab; a second truss is provided in the second floor slab; both the first truss and the second truss are perpendicular to the steel structure hidden beam; the upper chord reinforcement of the first truss is connected to the upper chord reinforcement of the second truss through additional reinforcement on the slab surface; the additional reinforcement on the slab surface passes through the steel structure hidden beam in a direction perpendicular to the steel structure hidden beam; the lower chord reinforcement of the first truss is connected to the lower chord reinforcement of the second truss through additional reinforcement at the bottom of the slab; the additional reinforcement at the bottom of the slab passes through the steel structure hidden beam in a direction perpendicular to the steel structure hidden beam.

[0013] In one alternative embodiment, the steel structural beam is covered with a fixing part located above the floor slab.

[0014] In one alternative embodiment, the fixing part is a plain concrete fixing part.

[0015] In one optional embodiment, the floor slab includes a first floor slab and a second floor slab; the steel structure concealed beam is embedded between the first floor slab and the second floor slab; when the building surface layer thickness is less than 100mm and the steel structure concealed beam serves as a support for the floor slab, the top and bottom of the steel structure concealed beam are respectively flush with the top and bottom of the floor slab; a first truss is provided in the first floor slab; a second truss is provided in the second floor slab; the first truss is parallel to the steel structure concealed beam; the second truss is perpendicular to the steel structure concealed beam; one end of the lower chord reinforcement of the second truss near the steel structure concealed beam is anchored to the lower flange plate of the steel structure concealed beam; the first floor slab has a first slab surface reinforcement and a first slab bottom reinforcement; one end of the first slab surface reinforcement passes through the first floor slab, and the other end passes through the web of the steel structure concealed beam and into the second floor slab; the first slab bottom reinforcement passes through the first floor slab in a direction perpendicular to the steel structure concealed beam.

[0016] In one optional embodiment, the floor slab includes a first floor slab and a second floor slab; the steel structure concealed beam is embedded between the first floor slab and the second floor slab; when the building surface layer thickness is less than 100mm, and the steel structure concealed beam serves as a support for the floor slab, the top and bottom of the steel structure concealed beam are flush with the top and bottom of the floor slab, respectively; a first truss is provided in the first floor slab; a second truss is provided in the second floor slab; both the first truss and the second truss are perpendicular to the steel structure concealed beam; one end of the lower chord reinforcement of the first truss near the steel structure concealed beam is anchored to the lower flange plate of the steel structure concealed beam; one end of the lower chord reinforcement of the second truss near the steel structure concealed beam is anchored to the lower flange plate of the steel structure concealed beam; the upper chord reinforcement of the first truss is connected to the upper chord reinforcement of the second truss through additional reinforcement on the slab surface; the additional reinforcement on the slab surface passes through the steel structure concealed beam in a direction perpendicular to the steel structure concealed beam;

[0017] Alternatively, the floor slab includes a first floor slab and a second floor slab; the steel structure concealed beam is embedded between the first floor slab and the second floor slab; when the building surface layer thickness is less than 100mm, and the steel structure concealed beam serves as a support for the floor slab, the top and bottom of the steel structure concealed beam are respectively flush with the top and bottom of the floor slab; a first truss is provided in the first floor slab; a second truss is provided in the second floor slab; the first truss is parallel to the steel structure concealed beam; the second truss is perpendicular to the steel structure concealed beam; one end of the lower chord reinforcement of the second truss near the steel structure concealed beam is anchored to the lower flange plate of the steel structure concealed beam; the first floor slab has a first slab surface reinforcement and a first slab bottom reinforcement; both the first slab surface reinforcement and the first slab bottom reinforcement are arranged in the first floor slab in a direction perpendicular to the steel structure concealed beam.

[0018] In one optional embodiment, the floor slab includes a first floor slab and a second floor slab; the steel structure concealed beam is embedded between the first floor slab and the second floor slab; when the building surface layer thickness is less than 100mm and the steel structure concealed beam does not serve as a support for the floor slab, the top and bottom of the steel structure concealed beam are respectively flush with the top and bottom of the floor slab; a first truss is provided in the first floor slab; a second truss is provided in the second floor slab; both the first truss and the second truss are parallel to the steel structure concealed beam; the first floor slab has a first top reinforcement bar and a first bottom reinforcement bar; one end of the first top reinforcement bar passes through the first floor slab, and the other end passes through the web of the steel structure concealed beam and into the second floor slab; one end of the first bottom reinforcement bar passes through the first floor slab, and the other end passes through the web of the steel structure concealed beam and into the second floor slab;

[0019] Alternatively, the floor slab includes a first floor slab and a second floor slab; the steel structure hidden beam is embedded between the first floor slab and the second floor slab; when the building surface layer thickness is less than 100mm and the steel structure hidden beam does not serve as a support for the floor slab, the top and bottom of the steel structure hidden beam are respectively flush with the top and bottom of the floor slab; a first truss is provided in the first floor slab; a second truss is provided in the second floor slab; both the first truss and the second truss are perpendicular to the steel structure hidden beam, and the lower chord reinforcement and upper chord reinforcement of the second truss are perpendicular to the lower chord reinforcement of the second truss; the upper chord reinforcement of the first truss is connected to the upper chord reinforcement of the second truss through additional reinforcement on the slab surface; the additional reinforcement on the slab surface passes through the steel structure hidden beam in a direction perpendicular to the steel structure hidden beam; the lower chord reinforcement of the first truss is connected to the lower chord reinforcement of the second truss through additional reinforcement at the bottom of the slab; the additional reinforcement at the bottom of the slab passes through the steel structure hidden beam in a direction perpendicular to the steel structure hidden beam.

[0020] In one optional embodiment, the concealed steel beam is embedded within the floor slab; the top of the concealed steel beam is a first predetermined distance from the top of the floor slab; the bottom of the concealed steel beam is a second predetermined distance from the bottom of the floor slab; the floor slab is provided with second surface reinforcement and second bottom reinforcement; the second surface reinforcement passes through the floor slab in a direction perpendicular to the concealed steel beam, and the second surface reinforcement is located above the concealed steel beam; the second bottom reinforcement passes through the floor slab in a direction perpendicular to the concealed steel beam, and the second bottom reinforcement is located below the concealed steel beam.

[0021] Alternatively, the steel structure concealed beam is embedded within the floor slab; the top of the steel structure concealed beam is a third pre-set distance from the top of the floor slab; the bottom of the steel structure concealed beam is flush with the bottom of the floor slab; the floor slab is provided with a second top reinforcement bar and a second bottom reinforcement bar; the second top reinforcement bar passes through the floor slab in a direction perpendicular to the steel structure concealed beam, and is located above the steel structure concealed beam; the second bottom reinforcement bar passes through the floor slab in a direction perpendicular to the steel structure concealed beam, is located between the upper and lower flange plates of the steel structure concealed beam, and penetrates the web of the steel structure concealed beam.

[0022] The technical solution of this invention has the following advantages:

[0023] In this invention, steel hidden beams are used to connect two frame columns or structural beams and frame columns, providing lateral restraint to the frame columns. Simultaneously, the steel hidden beams are embedded in the floor slab, cast together with the slab, and share the load collaboratively, forming a stable structure. This improves the overall structural integrity and lateral force resistance, ensuring that the overall stiffness and stability meet requirements. It avoids the increased steel structure usage that would occur when there are no connections between frame columns, thus reducing the overall steel structure usage. Compared to using concrete hidden beams, this method avoids the difficulties of welding the reinforcing bars of concrete hidden beams to the frame columns and the time-consuming and labor-intensive installation of stirrups. The steel hidden beam method is easier and faster to construct, improving construction efficiency and quality assurance, and reducing costs. Furthermore, the bottom of the steel hidden beam is higher than or equal to the bottom of the floor slab, preventing protruding beams in the interior, improving space utilization and aesthetics, addressing the needs of renovation throughout the building's life cycle, improving the quality of steel structure buildings, and enhancing the user experience. Attached Figure Description

[0024] 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.

[0025] Figure 1 This is the first prior art structural view in the background section;

[0026] Figure 2 This is a structural view of the second prior art in the background section;

[0027] Figure 3This is an overall top view of the steel frame with concealed beam structure after forming according to an embodiment of the present invention;

[0028] Figure 4 This is a first structural schematic diagram of a steel frame concealed beam structure according to an embodiment of the present invention;

[0029] Figure 5 This is a second structural schematic diagram of a steel frame concealed beam structure according to an embodiment of the present invention;

[0030] Figure 6 This is a third structural schematic diagram of a steel frame concealed beam structure according to an embodiment of the present invention;

[0031] Figure 7 This is a fourth structural schematic diagram of a steel frame concealed beam structure according to an embodiment of the present invention;

[0032] Figure 8 This is the fifth structural schematic diagram of a steel frame concealed beam structure according to an embodiment of the present invention;

[0033] Figure 9 This is the sixth structural schematic diagram of a steel frame hidden beam structure according to an embodiment of the present invention;

[0034] Figure 10 This is the seventh structural schematic diagram of a steel frame concealed beam structure according to an embodiment of the present invention;

[0035] Figure 11 This is the eighth structural schematic diagram of a steel frame concealed beam structure according to an embodiment of the present invention;

[0036] Figure 12 This is the ninth structural schematic diagram of a steel frame concealed beam structure according to an embodiment of the present invention;

[0037] Figure 13 This is the tenth structural schematic diagram of a steel frame concealed beam structure according to an embodiment of the present invention;

[0038] Figure 14 This is the eleventh structural schematic diagram of a steel frame concealed beam structure according to an embodiment of the present invention;

[0039] Figure 15 This is the twelfth structural schematic diagram of a steel frame hidden beam structure according to an embodiment of the present invention.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. First floor slab; 2. Second floor slab; 3. Steel structure concealed beam; 4. Fixing part; 5. First slab surface reinforcement; 6. First slab bottom reinforcement; 7. Additional surface reinforcement; 8. Additional bottom reinforcement; 9. Concrete concealed beam; 10. Second slab surface reinforcement; 11. Second slab bottom reinforcement; 12. First reinforcement; 13. Second reinforcement; 14. Structural beam; 15. Frame beam. Detailed Implementation

[0042] 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.

[0043] 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.

[0044] 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 according to the specific circumstances.

[0045] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0046] The following is combined with Figures 3 to 15 The following describes embodiments of the present invention.

[0047] According to an embodiment of the present invention, a steel frame concealed beam structure is provided, comprising: a floor slab; a steel concealed beam 3, which is parallel to the floor slab and is at least partially embedded in the floor slab; the bottom position of the steel concealed beam 3 is higher than or equal to the bottom position of the floor slab, and the two ends of the steel concealed beam 3 are respectively used to connect with two frame columns or structural beams 14 and frame columns.

[0048] In this embodiment, a steel hidden beam 3 is used to connect two frame columns or structural beam 14 and frame columns to provide lateral restraint to the frame columns. Simultaneously, the steel hidden beam 3 is embedded in the floor slab and cast together with the floor slab, sharing the load with it to form a stable structure. This improves the overall structural integrity and lateral force resistance, ensuring that the overall stiffness and stability meet the requirements. It avoids the increased steel structure usage required to ensure lateral stiffness and load-bearing capacity when there is no connection between frame columns, thus reducing the overall steel structure usage. Compared to using concrete hidden beams 9 for connection, this method avoids the difficulties of welding the steel reinforcement of concrete hidden beams 9 to frame columns and the time-consuming and labor-intensive problems of stirrup installation. Using steel hidden beams 3 for connection is easier and faster, improving construction efficiency and quality assurance, and reducing costs. Furthermore, the bottom position of the steel hidden beam 3 is higher than or equal to the bottom position of the floor slab, avoiding protruding beams in the interior, improving space utilization and aesthetics, addressing the needs of renovation throughout the building's life cycle, improving the quality of steel structure buildings, and enhancing the user experience.

[0049] Specifically, structural beam 14 can be a frame beam, a secondary beam, or other beams.

[0050] In one embodiment, such as Figure 4 As shown, the floor slab includes a first floor slab 1 and a second floor slab 2; a steel hidden beam 3 is embedded between the first floor slab 1 and the second floor slab 2; when the building surface layer thickness is greater than or equal to 100mm, and the steel hidden beam 3 serves as a support for the floor slab, the steel hidden beam 3 is set upwards, and the bottom of the steel hidden beam 3 is flush with the bottom of the floor slab; a first truss is provided in the first floor slab 1; a second truss is provided in the second floor slab 2; the first truss is parallel to the steel hidden beam 3, that is, the upper chord reinforcement and lower chord reinforcement of the first truss are parallel to the steel hidden beam 3; the first floor slab 1 has a first truss; the second floor slab 2 has a second truss; the first truss is parallel to the steel hidden beam 3, that is, the upper chord reinforcement and lower chord reinforcement of the first truss are parallel to the steel hidden beam 3; the second floor slab 2 has a first truss; the second floor slab 2 has a second ... The second truss is perpendicular to the steel structure hidden beam 3, that is, the upper chord and lower chord of the second truss are perpendicular to the steel structure hidden beam 3; the lower chord of the second truss is anchored to the lower flange of the steel structure hidden beam 3 at one end; the first floor slab 1 is provided with the first slab surface reinforcement 5 and the first slab bottom reinforcement 6; one end of the first slab surface reinforcement 5 passes through the first floor slab 1, and the other end passes through the web of the steel structure hidden beam 3 and is connected to the upper chord of the second truss; the first slab bottom reinforcement 6 passes through the first floor slab 1 in a direction perpendicular to the steel structure hidden beam 3.

[0051] It should be noted that the steel structure hidden beam 3 is an I-beam, and the first slab surface reinforcement 5 and the first slab bottom reinforcement 6 are both perpendicular to the steel structure hidden beam 3.

[0052] Building surface layer refers to the surface structure of the floor or roof above the structural surface to meet the functional and decorative needs of the building. It includes additional layers such as building slab, subbase, leveling layer, moisture-proof layer, waterproof layer, insulation layer, and decorative panels.

[0053] In this embodiment, a steel hidden beam 3 is embedded between the first floor slab 1 and the second floor slab 2, and the lower chord reinforcement of the second truss of the second floor slab 2 is anchored to the lower flange of the steel hidden beam 3. Simultaneously, the first slab surface reinforcement 5 passes through the web of the steel hidden beam 3 and extends into the second floor slab 2, specifically connecting with the upper chord reinforcement of the second truss within the second floor slab 2. Furthermore, a first bottom reinforcement 6 is provided within the first floor slab 1 to further enhance its structural strength. The steel hidden beam 3 can be cast together with the first floor slab 1 and the second floor slab 2. Through the cooperation of the above-mentioned connection structures, using the steel hidden beam 3 as a support, a rigid connection is achieved between the first floor slab 1 and the second floor slab 2, improving the overall stiffness and load-bearing capacity. The steel hidden beam 3 connects two frame columns or a frame column and a structural beam 14, improving the lateral load-bearing capacity of the frame columns and reducing... The lateral displacement of the small structure reduces the amount of steel used in the frame columns, thereby lowering costs, reducing construction intensity, and improving construction efficiency. In addition, the steel hidden beam 3, the first floor slab 1, and the second floor slab 2 work together to improve the overall structure and lateral force resistance, ensuring that the overall stiffness and stability meet the requirements, achieving beam-free areas in the interior, improving space utilization and aesthetics, addressing the needs of renovation throughout the building's life cycle, and improving the quality of use of steel structure buildings. The bottom reinforcement 6 and the top reinforcement 5 of the first slab can be tied or welded through the truss of the first floor slab 1 or the second floor slab 2 and cast together. Compared with the method of setting concrete hidden beam 9, this avoids the difficulties of welding the reinforcement of the concrete hidden beam 9 to the frame columns and the time-consuming and labor-intensive problems of stirrup construction. It does not need to avoid the position of the top chord reinforcement and web reinforcement of the truss, saving time and effort and reducing construction costs.

[0054] As a possible implementation method, it can also be, for example... Figure 5As shown, the floor slab includes a first floor slab 1 and a second floor slab 2; a steel hidden beam 3 is embedded between the first floor slab 1 and the second floor slab 2; when the building surface layer thickness is greater than or equal to 100mm, and the steel hidden beam 3 serves as a support for the floor slab, the steel hidden beam 3 is set upwards, and the bottom of the steel hidden beam 3 is flush with the bottom of the floor slab; a first truss is provided in the first floor slab 1; a second truss is provided in the second floor slab 2; both the first truss and the second truss are perpendicular to the steel hidden beam 3, that is, the upper chord reinforcement and the lower chord reinforcement of the first truss and the second truss are both perpendicular to the steel hidden beam 3; the lower chord reinforcement of the first truss is anchored to the lower flange plate of the steel hidden beam 3 at one end near the steel hidden beam 3; the lower chord reinforcement of the second truss is anchored to the lower flange plate of the steel hidden beam 3 at one end near the steel hidden beam 3; the upper chord reinforcement of the first truss is connected to the upper chord reinforcement of the second truss through additional reinforcement 7 on the slab surface; the additional reinforcement 7 on the slab surface passes through the steel hidden beam 3 in a direction perpendicular to the steel hidden beam 3. By embedding a concealed steel beam 3 between the first floor slab 1 and the second floor slab 2, with the first bottom reinforcement 6 of the first floor slab 1 and the lower chord reinforcement of the second truss of the second floor slab 2 both anchored to the lower flange of the concealed steel beam 3, and simultaneously using additional reinforcement 7 to penetrate the concealed steel beam 3 and connect the first surface reinforcement 5 and the upper chord reinforcement of the second truss, the concealed steel beam 3 can be cast together with the first floor slab 1 and the second floor slab 2. Through the cooperation of the above connection structures, using the concealed steel beam 3 as a support, a rigid connection is achieved between the first floor slab 1 and the second floor slab 2, improving the overall stiffness and load-bearing capacity. By connecting two frame columns or a frame column and a structural beam 14 through the concealed steel beam 3, the lateral load-bearing capacity of the frame columns is improved, the lateral displacement of the structure is reduced, and thus the amount of steel used in the frame columns is reduced. This reduces costs, lowers construction intensity, and improves construction efficiency. Furthermore, the steel hidden beam 3, the first floor slab 1, and the second floor slab 2 work together to improve the overall structural integrity and lateral force resistance, ensuring that overall stiffness and stability meet requirements. This allows for beam-free interior areas, improving space utilization and aesthetics, addressing renovation needs throughout the building's lifecycle, and enhancing the quality of steel structure buildings. The additional steel reinforcement 7 on the slab surface can be connected to the first slab reinforcement 5 or the upper chord reinforcement of the second truss by binding or welding, and runs through the truss of the first floor slab 1 or the second floor slab 2, being cast together. Compared to setting a concrete hidden beam 9, this avoids the difficulties of welding the reinforcement of the concrete hidden beam 9 to the frame columns and the time-consuming and labor-intensive problems of stirrup construction. It also eliminates the need to avoid the upper chord reinforcement and web reinforcement positions of the truss, saving time and effort and reducing construction costs.

[0055] As a possible implementation method, it can also be, for example... Figure 6As shown, the floor slab includes a first floor slab 1 and a second floor slab 2; a steel structure hidden beam 3 is embedded between the first floor slab 1 and the second floor slab 2; when the building surface layer thickness is greater than or equal to 100mm, and the steel structure hidden beam 3 serves as a support for the floor slab, the steel structure hidden beam 3 is set upwards, and the bottom of the steel structure hidden beam 3 is flush with the bottom of the floor slab; a first truss is provided in the first floor slab 1; a second truss is provided in the second floor slab 2; the first truss is parallel to the steel structure hidden beam 3, that is, the upper chord and lower chord of the first truss are parallel to the steel structure hidden beam 3; the second truss is perpendicular to the steel structure hidden beam 3, that is, the upper chord and lower chord of the second truss are perpendicular to the steel structure hidden beam 3; the lower chord of the second truss is anchored at one end near the steel structure hidden beam 3 to the lower flange of the steel structure hidden beam 3; the first floor slab 1 is provided with a first slab surface reinforcement 5 and a first slab bottom reinforcement 6; the first slab surface reinforcement 5 and the first slab bottom reinforcement 6 are both set in the first floor slab 1 in a direction perpendicular to the steel structure hidden beam 3. By embedding the steel hidden beam 3 between the first floor slab 1 and the second floor slab 2, and anchoring the lower chord reinforcement of the second truss of the second floor slab 2 to the lower flange plate of the steel hidden beam 3, while simultaneously placing the first slab surface reinforcement 5 and the first slab bottom reinforcement 6 within the first floor slab 1, the structural strength of the first floor slab 1 is improved. The steel hidden beam 3 can be cast together with the first floor slab 1 and the second floor slab 2. Through the cooperation of the above-mentioned connection structures, using the steel hidden beam 3 as a support, a hinged connection is achieved between the first floor slab 1 and the second floor slab 2, improving the overall rigidity and load-bearing capacity. The steel hidden beam 3 connects two frame columns or a frame column and structural beam 14, improving the lateral bearing capacity of the frame columns, reducing lateral displacement of the structure, thereby reducing the amount of steel used in the frame columns, lowering costs, reducing construction intensity, and improving construction efficiency. Furthermore, the steel hidden beam 3, the first floor slab 1, and the second floor slab 2 work together to improve the overall integrity and lateral force resistance of the structure, ensuring that the overall stiffness and stability meet requirements. This allows for beam-free areas within the building, improving space utilization and aesthetics, addressing the needs of renovation throughout the building's lifecycle, and enhancing the quality of use of the steel structure building. Compared to using a concrete hidden beam 9, this method avoids the difficulties of welding the reinforcing bars of the concrete hidden beam 9 to the frame columns and the time-consuming and labor-intensive problems of stirrup construction. It also eliminates the need to avoid the positions of the truss's top chord reinforcing bars and web reinforcement, saving time and effort and reducing construction costs.

[0056] As a possible implementation method, it can also be, for example... Figure 7As shown, the floor slab includes a first floor slab 1 and a second floor slab 2; a steel hidden beam 3 is embedded between the first floor slab 1 and the second floor slab 2; when the building surface layer thickness is greater than or equal to 100mm and the steel hidden beam 3 does not serve as a support for the floor slab, the steel hidden beam 3 is set upwards, and the bottom of the steel hidden beam 3 is flush with the bottom of the floor slab; a first truss is provided in the first floor slab 1; a second truss is provided in the second floor slab 2; both the first truss and the second truss are parallel to the steel hidden beam 3, that is, the upper chord reinforcement and the lower chord reinforcement of the first truss and the second truss are parallel to the steel hidden beam 3; the first floor slab 1 is provided with a first slab surface reinforcement 5 and a first slab bottom reinforcement 6; one end of the first slab surface reinforcement 5 passes through the first floor slab 1, and the other end passes through the web of the steel hidden beam 3 and passes through the second floor slab 2; one end of the first slab bottom reinforcement 6 passes through the first floor slab 1, and the other end passes through the web of the steel hidden beam 3 and passes through the second floor slab 2. By embedding the steel hidden beam 3 between the first floor slab 1 and the second floor slab 2, and anchoring the lower chord reinforcement of the second truss of the second floor slab 2 to the lower flange of the steel hidden beam 3, while the first slab surface reinforcement 5 passes through the steel hidden beam 3 with its two ends passing through the first floor slab 1 and the second floor slab 2 respectively, and the upper chord reinforcement of the second truss passes through the steel hidden beam 3 with its two ends passing through the first floor slab 1 and the second floor slab 2 respectively, the structural strength of the connection between the first floor slab 1 and the second floor slab 2 is improved. The steel hidden beam 3 can be cast together with the first floor slab 1 and the second floor slab 2. Through the cooperation of the above connection structures, the connection between the first floor slab 1 and the second floor slab 2 is achieved without considering the steel hidden beam 3 as a support, thereby improving the overall stiffness and load-bearing capacity. By connecting two frame columns or a frame column and a structural beam 14 through the steel hidden beam 3, the lateral bearing capacity of the frame columns is improved. The steel structure has a load-bearing capacity, which reduces lateral displacement of the structure, thereby reducing the amount of steel used in the frame columns, lowering costs, reducing construction intensity, and improving construction efficiency. In addition, the steel structure hidden beam 3, the first floor slab 1, and the second floor slab 2 work together to bear the load, which improves the overall integrity and lateral force resistance of the structure, ensures that the overall stiffness and stability meet the requirements, realizes beam-free areas in the interior, improves space utilization and aesthetics, solves the renovation needs of the building throughout its entire life cycle, and improves the quality of use of steel structure buildings. Moreover, the bottom reinforcement 6 and the top reinforcement 5 of the first slab can be tied or welded through the truss of the first floor slab 1 or the second floor slab 2 and cast together. Compared with the method of setting concrete hidden beam 9, it avoids the difficulties of welding the reinforcement of concrete hidden beam 9 to the frame columns and the time-consuming and labor-intensive problems of stirrup construction. It does not need to avoid the position of the top chord reinforcement and web reinforcement of the truss, saving time and effort and reducing construction costs.

[0057] As a possible implementation method, it can also be, for example... Figure 8As shown, the floor slab includes a first floor slab 1 and a second floor slab 2; a steel hidden beam 3 is embedded between the first floor slab 1 and the second floor slab 2; when the building surface layer thickness is greater than or equal to 100mm and the steel hidden beam 3 does not serve as a support for the floor slab, the steel hidden beam 3 is set upwards, and the bottom of the steel hidden beam 3 is flush with the bottom of the floor slab; a first truss is provided in the first floor slab 1; a second truss is provided in the second floor slab 2; both the first truss and the second truss are perpendicular to the steel hidden beam 3, that is, the upper chord reinforcement and the lower chord reinforcement of the first truss and the second truss are both perpendicular to the steel hidden beam 3; the upper chord reinforcement of the first truss is connected to the upper chord reinforcement of the second truss through additional reinforcement 7 on the slab surface; the additional reinforcement 7 on the slab surface passes through the steel hidden beam 3 in a direction perpendicular to the steel hidden beam 3; the lower chord reinforcement of the first truss is connected to the lower chord reinforcement of the second truss through additional reinforcement 8 at the bottom of the slab; the additional reinforcement 8 at the bottom of the slab passes through the steel hidden beam 3 in a direction perpendicular to the steel hidden beam 3. By embedding the steel hidden beam 3 between the first floor slab 1 and the second floor slab 2, and anchoring the first bottom reinforcement 6 of the first floor slab 1 and the lower chord reinforcement of the second truss of the second floor slab 2 to the lower flange of the steel hidden beam 3, and simultaneously using additional reinforcement 7 on the slab surface to penetrate the steel hidden beam 3 and connect the first slab surface reinforcement 5 and the upper chord reinforcement of the second truss through the additional reinforcement 7, and using additional reinforcement 8 on the bottom of the slab to penetrate the steel hidden beam 3 and connect the lower chord reinforcement of the second truss and the first bottom reinforcement 6 through the additional reinforcement 8 on the bottom of the slab, the steel hidden beam 3 can be cast together with the first floor slab 1 and the second floor slab 2. Through the cooperation of the above connection structures, the connection between the first floor slab 1 and the second floor slab 2 is achieved without considering the steel hidden beam 3 as a support, thereby improving the overall stiffness and load-bearing capacity; by connecting two frame columns or a frame column and a structural beam 14 through the steel hidden beam 3, the lateral load-bearing capacity of the frame columns is improved, the lateral displacement of the structure is reduced, and thus the steel consumption of the frame columns is reduced, reducing costs. Low cost, reduced construction intensity, and improved construction efficiency; in addition, the steel structure hidden beam 3, the first floor slab 1, and the second floor slab 2 work together to improve the overall structure and lateral force resistance, ensuring that the overall stiffness and stability meet the requirements, realizing beam-free areas in the interior, improving space utilization and aesthetics, solving the renovation needs throughout the building's life cycle, and improving the quality of use of steel structure buildings; the additional steel bars 7 on the slab surface can be connected to the first slab surface steel bars 5 or the upper chord steel bars of the second truss by binding or welding, and the additional steel bars 8 at the bottom of the slab can be connected to the lower chord steel bars of the second truss or the bottom steel bars 6 of the first slab by binding or welding. The additional steel bars 7 on the slab surface and the additional steel bars 8 on the slab surface pass through the truss of the first floor slab 1 or the second floor slab 2 and are cast together. Compared with the method of setting concrete hidden beams 9, it avoids the difficulties of welding the steel bars of the concrete hidden beams 9 to the frame columns and the time-consuming and labor-intensive problems of stirrup construction. It does not need to avoid the upper chord steel bars and web reinforcement positions of the truss, saving time and labor and reducing construction costs.

[0058] In one embodiment, such as Figures 3 to 8 The steel structure hidden beam 3 is covered with a fixing part 4 located above the floor slab.

[0059] In this embodiment, the fixing part 4 covers the upper part of the steel structure hidden beam 3, which serves to prevent fire and improve durability, thereby increasing the overall service life.

[0060] In one embodiment, the fixing part 4 is a plain concrete fixing part 4.

[0061] In this embodiment, the fixing part 4 can be cast with plain concrete and wrapped around the outer periphery of the upper flange plate of the steel structure hidden beam 3, which serves both as fireproofing and improving durability. At the same time, it cooperates with the lower flange plate of the steel structure hidden beam 3 to clamp the first floor slab 1 and the second floor slab 2 on both sides to improve the lateral support strength and ensure stability.

[0062] As a possible implementation method, it can also be, for example... Figure 9As shown, the floor slab includes a first floor slab 1 and a second floor slab 2; a steel structure hidden beam 3 is embedded between the first floor slab 1 and the second floor slab 2; when the building surface layer thickness is less than 100mm and the steel structure hidden beam 3 serves as a support for the floor slab, the top and bottom of the steel structure hidden beam 3 are flush with the top and bottom of the floor slab, respectively; a first truss is provided in the first floor slab 1; a second truss is provided in the second floor slab 2; the first truss is parallel to the steel structure hidden beam 3; the second truss is perpendicular to the steel structure hidden beam 3; one end of the lower chord reinforcement of the second truss near the steel structure hidden beam 3 is anchored to the lower flange plate of the steel structure hidden beam 3; the first floor slab 1 is provided with a first slab surface reinforcement 5 and a first slab bottom reinforcement 6; one end of the first slab surface reinforcement 5 passes through the first floor slab 1, and the other end passes through the web of the steel structure hidden beam 3 and extends into the second floor slab 2; the first slab bottom reinforcement 6 passes through the first floor slab 1 in a direction perpendicular to the steel structure hidden beam 3. Due to the relatively small thickness of the building surface layer, a concealed steel beam 3 is embedded between the first floor slab 1 and the second floor slab 2, with the top and bottom of the concealed steel beam 3 flush with the top and bottom of the floor slabs, respectively. The lower chord reinforcement of the second truss of the second floor slab 2 is anchored to the lower flange of the concealed steel beam 3. Simultaneously, the first slab surface reinforcement 5 passes through the web of the concealed steel beam 3 and extends into the second floor slab 2, specifically connecting with the upper chord reinforcement of the second truss within the second floor slab 2. Furthermore, a first bottom reinforcement 6 is installed within the first floor slab 1 to further enhance its structural strength. The concealed steel beam 3 can be cast together with the first floor slab 1 and the second floor slab 2. Through the cooperation of these connection structures, using the concealed steel beam 3 as a support, a rigid connection is achieved between the first floor slab 1 and the second floor slab 2, improving the overall stiffness and load-bearing capacity. The concealed steel beam 3 connects two frame columns or a frame column and a structural beam. 14. Improve the lateral bearing capacity of the frame columns, reduce the lateral displacement of the structure, thereby reducing the amount of steel used in the frame columns, lowering costs, reducing construction intensity, and improving construction efficiency; In addition, the steel structure hidden beam 3, the first floor slab 1, and the second floor slab 2 work together to improve the overall integrity and lateral force resistance of the structure, ensuring that the overall stiffness and stability meet the requirements, realizing beam-free areas in the interior, improving space utilization and aesthetics, solving the renovation needs throughout the building's life cycle, and improving the quality of use of steel structure buildings; The bottom reinforcement 6 and the top reinforcement 5 of the first slab can be tied or welded through the truss of the first floor slab 1 or the second floor slab 2 and cast together. Compared with the method of setting concrete hidden beam 9, it avoids the difficulties of welding the reinforcement of the concrete hidden beam 9 to the frame columns and the time-consuming and labor-intensive problems of stirrup construction. It does not need to avoid the position of the top chord reinforcement and web reinforcement of the truss, saving time and effort and reducing construction costs.

[0063] As a possible implementation method, it can also be, for example... Figure 10As shown, the floor slab includes a first floor slab 1 and a second floor slab 2; a steel structure hidden beam 3 is embedded between the first floor slab 1 and the second floor slab 2; when the building surface layer thickness is less than 100mm and the steel structure hidden beam 3 serves as a support for the floor slab, the top and bottom of the steel structure hidden beam 3 are flush with the top and bottom of the floor slab, respectively; a first truss is provided in the first floor slab 1; a second truss is provided in the second floor slab 2; both the first truss and the second truss are perpendicular to the steel structure hidden beam 3; the lower chord reinforcement of the first truss is anchored to the lower flange plate of the steel structure hidden beam 3 at one end near the steel structure hidden beam 3; the lower chord reinforcement of the second truss is anchored to the lower flange plate of the steel structure hidden beam 3 at one end near the steel structure hidden beam 3; the upper chord reinforcement of the first truss is connected to the upper chord reinforcement of the second truss through additional reinforcement 7 on the slab surface; the additional reinforcement 7 on the slab surface passes through the steel structure hidden beam 3 in a direction perpendicular to the steel structure hidden beam 3. Due to the relatively small thickness of the building surface layer, a concealed steel beam 3 is embedded between the first floor slab 1 and the second floor slab 2, with its top and bottom flush with the top and bottom of the floor slabs, respectively. The first bottom reinforcement 6 of the first floor slab 1 and the lower chord reinforcement of the second truss of the second floor slab 2 are both anchored to the lower flange of the concealed steel beam 3. Simultaneously, additional reinforcement 7 is used to penetrate the concealed steel beam 3 and connect the first floor reinforcement 5 and the upper chord reinforcement of the second truss. The concealed steel beam 3 can be cast together with the first floor slab 1 and the second floor slab 2. Through the cooperation of the above connection structures, using the concealed steel beam 3 as a support, a rigid connection is achieved between the first floor slab 1 and the second floor slab 2, improving the overall rigidity and load-bearing capacity. The concealed steel beam 3 connects two frame columns or a frame column and a structural beam 14, improving the lateral load-bearing capacity of the frame columns and reducing structural stress. The lateral displacement of the structure reduces the amount of steel used in the frame columns, thereby lowering costs, reducing construction intensity, and improving construction efficiency. In addition, the steel structure hidden beam 3, the first floor slab 1, and the second floor slab 2 work together to improve the overall integrity and lateral force resistance of the structure, ensuring that the overall stiffness and stability meet the requirements, achieving beam-free areas in the interior, improving space utilization and aesthetics, solving the renovation needs throughout the building's life cycle, and improving the quality of use of steel structure buildings. The additional steel reinforcement 7 on the slab surface can be connected to the first slab surface reinforcement 5 or the upper chord reinforcement of the second truss by binding or welding, and pass through the truss of the first floor slab 1 or the second floor slab 2 and be cast together. Compared with the method of setting concrete hidden beam 9, it avoids the difficulties of welding the reinforcement of the concrete hidden beam 9 to the frame columns and the time-consuming and labor-intensive problems of stirrup construction. It does not need to avoid the upper chord reinforcement and web reinforcement of the truss, saving time and labor and reducing construction costs.

[0064] As a possible implementation method, it can also be, for example... Figure 11As shown, the floor slab includes a first floor slab 1 and a second floor slab 2; a steel structure hidden beam 3 is embedded between the first floor slab 1 and the second floor slab 2; when the building surface layer thickness is less than 100mm and the steel structure hidden beam 3 serves as a support for the floor slab, the top and bottom of the steel structure hidden beam 3 are flush with the top and bottom of the floor slab, respectively; a first truss is provided in the first floor slab 1; a second truss is provided in the second floor slab 2; the first truss is parallel to the steel structure hidden beam 3; the second truss is perpendicular to the steel structure hidden beam 3; the lower chord reinforcement of the second truss is anchored to the lower flange plate of the steel structure hidden beam 3 at one end; the first floor slab 1 is provided with a first slab surface reinforcement 5 and a first slab bottom reinforcement 6; both the first slab surface reinforcement 5 and the first slab bottom reinforcement 6 are provided in the first floor slab 1 in a direction perpendicular to the steel structure hidden beam 3. Due to the relatively small thickness of the building surface layer, a concealed steel beam 3 is embedded between the first floor slab 1 and the second floor slab 2, so that the top and bottom of the concealed steel beam 3 are flush with the top and bottom of the floor slabs, respectively. The lower chord reinforcement of the second truss of the second floor slab 2 is anchored to the lower flange of the concealed steel beam 3. Simultaneously, the top reinforcement 5 and the bottom reinforcement 6 of the first slab are both placed within the first floor slab 1 to improve its structural strength. The concealed steel beam 3 can be cast together with the first floor slab 1 and the second floor slab 2. Through the cooperation of the above-mentioned connection structures, using the concealed steel beam 3 as a support, the connection between the first floor slab 1 and the second floor 2 is achieved. The hinged joints enhance overall rigidity and load-bearing capacity. Connecting two frame columns or a frame column and structural beam 14 via the hidden steel beam 3 improves the lateral load-bearing capacity of the frame columns, reduces lateral displacement, and consequently reduces steel consumption, lowers costs, reduces construction intensity, and improves construction efficiency. Furthermore, the hidden steel beam 3, the first floor slab 1, and the second floor slab 2 work together to improve the overall structural integrity and lateral force resistance, ensuring that overall rigidity and stability meet requirements. This allows for beam-free interior areas, improving space utilization and aesthetics, addressing renovation needs throughout the building's lifecycle, and enhancing the quality of steel structure buildings. It avoids the difficulties of welding the reinforcing bars of the hidden concrete beam 9 to the frame columns and the time-consuming and labor-intensive construction of the stirrups. It also eliminates the need to avoid the positions of the truss's upper chord reinforcing bars and web reinforcement, saving time and effort and reducing construction costs.

[0065] As a possible implementation method, it can also be, for example... Figure 12As shown, the floor slab includes a first floor slab 1 and a second floor slab 2; a steel structure hidden beam 3 is embedded between the first floor slab 1 and the second floor slab 2; when the building surface layer thickness is less than 100mm and the steel structure hidden beam 3 does not serve as a support for the floor slab, the top and bottom of the steel structure hidden beam 3 are flush with the top and bottom of the floor slab, respectively; a first truss is provided in the first floor slab 1; a second truss is provided in the second floor slab 2; both the first truss and the second truss are parallel to the steel structure hidden beam 3; the first floor slab 1 is provided with a first slab surface reinforcement 5 and a first slab bottom reinforcement 6; one end of the first slab surface reinforcement 5 passes through the first floor slab 1, and the other end passes through the web of the steel structure hidden beam 3 and into the second floor slab 2; one end of the first slab bottom reinforcement 6 passes through the first floor slab 1, and the other end passes through the web of the steel structure hidden beam 3 and into the second floor slab 2. Due to the relatively small thickness of the building surface layer, a concealed steel beam 3 is embedded between the first floor slab 1 and the second floor slab 2, so that the top and bottom of the concealed steel beam 3 are flush with the top and bottom of the floor slabs, respectively. The lower chord reinforcement of the second truss of the second floor slab 2 is anchored to the lower flange of the concealed steel beam 3. Simultaneously, the first slab surface reinforcement 5 penetrates the concealed steel beam 3, with its ends passing through the first floor slab 1 and the second floor slab 2, respectively. Similarly, the upper chord reinforcement of the second truss penetrates the concealed steel beam 3, with its ends passing through the first floor slab 1 and the second floor slab 2, respectively. This improves the structural strength of the connection between the first floor slab 1 and the second floor slab 2. The concealed steel beam 3 can be cast together with the first floor slab 1 and the second floor slab 2. Through the cooperation of the above connection structures, the connection between the first floor slab 1 and the second floor slab 2 is achieved without considering the concealed steel beam 3 as a support, thus improving the overall rigidity and load-bearing capacity. The concealed steel beam 3 connects two frame columns or... The frame columns and structural beams 14 improve the lateral bearing capacity of the frame columns, reduce the lateral displacement of the structure, thereby reducing the amount of steel used in the frame columns, lowering costs, reducing construction intensity, and improving construction efficiency. In addition, the steel structure hidden beams 3, the first floor slab 1, and the second floor slab 2 work together to improve the overall structure and the lateral force resistance of the structure, ensuring that the overall stiffness and stability meet the requirements, realizing beam-free areas in the interior, improving space utilization and aesthetics, solving the renovation needs of the building throughout its entire life cycle, and improving the quality of use of steel structure buildings. Moreover, the bottom reinforcement 6 and the top reinforcement 5 of the first slab can be tied or welded through the truss of the first floor slab 1 or the second floor slab 2 and cast together. Compared with the method of setting concrete hidden beams 9, it avoids the difficulties of welding the reinforcement of concrete hidden beams 9 to the frame columns and the time-consuming and labor-intensive problems of stirrup construction. It does not need to avoid the position of the top chord reinforcement and web reinforcement of the truss, saving time and effort and reducing construction costs.

[0066] As a possible implementation method, it can also be, for example... Figure 13As shown, the floor slab includes a first floor slab 1 and a second floor slab 2; a steel structure hidden beam 3 is embedded between the first floor slab 1 and the second floor slab 2; when the building surface layer thickness is less than 100mm and the steel structure hidden beam 3 does not serve as a support for the floor slab, the top and bottom of the steel structure hidden beam 3 are flush with the top and bottom of the floor slab, respectively; a first truss is provided in the first floor slab 1; a second truss is provided in the second floor slab 2; both the first truss and the second truss are perpendicular to the steel structure hidden beam 3, including the lower chord reinforcement of the second truss and the upper chord reinforcement of the second truss; the upper chord reinforcement of the first truss is connected to the upper chord reinforcement of the second truss through additional reinforcement 7 on the slab surface; the additional reinforcement 7 on the slab surface passes through the steel structure hidden beam 3 in a direction perpendicular to the steel structure hidden beam 3; the lower chord reinforcement of the first truss is connected to the lower chord reinforcement of the second truss through additional reinforcement 8 at the bottom of the slab; the additional reinforcement 8 at the bottom of the slab passes through the steel structure hidden beam 3 in a direction perpendicular to the steel structure hidden beam 3. Due to the relatively small thickness of the building surface layer, the steel structure concealed beam 3 is embedded between the first floor slab 1 and the second floor slab 2, so that the top and bottom of the steel structure concealed beam 3 are flush with the top and bottom of the floor slabs, respectively. The first bottom reinforcement 6 of the first floor slab 1 and the lower chord reinforcement of the second truss of the second floor slab 2 are both anchored to the lower flange plate of the steel structure concealed beam 3. Simultaneously, additional reinforcement 7 is used to penetrate the steel structure concealed beam 3, and the first surface reinforcement 5 and the upper chord reinforcement of the second truss are connected through the additional reinforcement 7. Additionally, additional reinforcement 8 is used at the bottom of the slab. A hidden steel beam 3 runs through the structure and connects to the lower chord reinforcement of the second truss and the bottom reinforcement of the first slab 6 via additional reinforcement 8 at the bottom of the slab. The hidden steel beam 3 can be cast together with the first floor slab 1 and the second floor slab 2. Through the cooperation of these connection structures, the connection between the first floor slab 1 and the second floor slab 2 is achieved without considering the hidden steel beam 3 as a support, thereby improving the overall rigidity and load-bearing capacity. The hidden steel beam 3 also connects two frame columns or a frame column and a structural beam 14, improving the lateral load-bearing capacity of the frame columns and reducing structural stress. Lateral displacement reduces the amount of steel used in the frame columns, lowering costs, reducing construction intensity, and improving construction efficiency. Furthermore, the steel hidden beam 3, the first floor slab 1, and the second floor slab 2 work together to improve the overall structural integrity and lateral force resistance, ensuring that overall stiffness and stability meet requirements. This allows for beam-free interior areas, improving space utilization and aesthetics, addressing renovation needs throughout the building's lifecycle, and enhancing the quality of steel structure buildings. The additional reinforcing bars 7 on the slab surface can be connected to the upper chord of the first or second truss by binding or welding. Similarly, the additional reinforcing bars 8 at the bottom of the slab can be connected to the lower chord of the second or first truss by binding or welding. Both the additional reinforcing bars 7 and 8 penetrate the truss of the first or second floor slab 2 and are cast together. Compared to using a concrete hidden beam 9, this avoids the difficulties of welding the reinforcing bars of the concrete hidden beam 9 to the frame columns and the time-consuming and labor-intensive problems of stirrup construction. It also eliminates the need to avoid the upper chord and web reinforcement positions of the truss, saving time and effort and reducing construction costs.

[0067] Specifically, the web of the steel structure hidden beam 3 is provided with a first opening for the first plate surface reinforcement 5 to pass through.

[0068] Specifically, the web of the steel structure hidden beam 3 is provided with a second opening for the bottom reinforcement 6 of the first slab to pass through.

[0069] Specifically, the web of the steel structure hidden beam 3 is provided with a third opening for the additional reinforcing bars 7 to pass through.

[0070] Specifically, the web of the steel structure hidden beam 3 is provided with a fourth opening for the additional reinforcing bars 8 at the bottom of the slab to pass through.

[0071] Specifically, the first slab surface has multiple reinforcing bars 5, which are spaced apart along the length of the steel structure hidden beam 3 to improve the structural strength.

[0072] Specifically, the bottom reinforcement 6 of the first slab is provided with multiple bars, which are spaced apart along the length of the hidden steel beam 3 to improve the structural strength.

[0073] Specifically, multiple additional reinforcing bars 7 are provided on the slab surface and are spaced apart along the length of the hidden steel beam 3 to improve the structural strength.

[0074] Specifically, multiple additional reinforcing bars 8 are provided at the bottom of the slab and are spaced apart along the length of the hidden steel beam 3 to improve the structural strength.

[0075] Specifically, the first slab surface reinforcement 5 and the first slab bottom reinforcement 6 are located between the top chord reinforcement and the bottom chord reinforcement of the first truss to improve the structural strength.

[0076] As a possible implementation method, it can also be, for example... Figure 14As shown, the steel hidden beam 3 is embedded in the floor slab; the top of the steel hidden beam 3 is a first pre-set distance from the top of the floor slab; the bottom of the steel hidden beam 3 is a second pre-set distance from the bottom of the floor slab; the floor slab has a second surface reinforcement 10 and a second bottom reinforcement 11; the second surface reinforcement 10 passes through the floor slab in a direction perpendicular to the steel hidden beam 3, and is located above the steel hidden beam 3; the second bottom reinforcement 11 passes through the floor slab in a direction perpendicular to the steel hidden beam 3, and is located below the steel hidden beam 3. It should be noted that the floor slab has a third truss, which is parallel to the steel hidden beam 3. When the building surface layer is relatively thick, specifically between 200mm and 300mm, the absolute value of the height of the steel structure concealed beam 3 is less than the absolute value of the floor slab thickness. The floor slab is integrated, allowing the steel structure concealed beam 3 to be embedded entirely within it. The top of the steel structure concealed beam 3 is at a first pre-set distance from the top of the floor slab in the vertical direction, and the bottom of the steel structure concealed beam 3 is at a second pre-set distance from the bottom of the floor slab in the vertical direction, to allow sufficient space for reinforcement. The first slab surface reinforcement 5 and the first slab bottom reinforcement 6 are respectively placed on the upper and lower sides of the steel structure concealed beam 3 to ensure that the generated load-bearing capacity acts on the steel structure. The hidden beam 3 is integrally cast with the floor slab, improving the overall structure and allowing the hidden beam 3 and the floor slab to work together to increase the overall stiffness and load-bearing capacity. This ensures that the overall stiffness and stability meet the requirements, achieving beam-free areas in the interior, improving space utilization and aesthetics, addressing the needs of renovation throughout the building's life cycle, and improving the quality of use of steel structure buildings. In addition, by connecting two frame columns or a frame column and structural beam 14 through the hidden beam 3, the lateral load-bearing capacity of the frame columns is improved, the lateral displacement of the structure is reduced, thereby reducing the amount of steel used in the frame columns, lowering costs, reducing construction intensity, and improving construction efficiency.

[0077] As a possible implementation method, it can also be, for example... Figure 15As shown, the steel hidden beam 3 is embedded in the floor slab; the top of the steel hidden beam 3 is a third pre-set distance from the top of the floor slab; the bottom of the steel hidden beam 3 is flush with the bottom of the floor slab; the floor slab has a second top reinforcement 10 and a second bottom reinforcement 11; the second top reinforcement 10 passes through the floor slab in a direction perpendicular to the steel hidden beam 3, and is located above the steel hidden beam 3; the second bottom reinforcement 11 passes through the floor slab in a direction perpendicular to the steel hidden beam 3, is located between the upper and lower flange plates of the steel hidden beam 3, and penetrates the web of the steel hidden beam 3. It should be noted that the floor slab has a third truss, which is parallel to the steel hidden beam 3. When the building surface layer is relatively thick, specifically between 200mm and 300mm, the absolute value of the height of the steel structure hidden beam 3 is less than the absolute value of the floor slab thickness. The floor slab is integrated, allowing the steel structure hidden beam 3 to be embedded entirely within it. The top of the steel structure hidden beam 3 is vertically positioned a third pre-set distance from the top of the floor slab to allow for sufficient space for reinforcing bars. The bottom of the steel structure hidden beam 3 is flush with the bottom of the floor slab, with the first slab surface reinforcing bar 5 positioned on the upper side of the steel structure hidden beam 3. The first slab bottom reinforcing bar 6 penetrates the web of the steel structure hidden beam 3 to facilitate the load-bearing capacity acting on the steel structure. Hidden beam 3, which is integrally cast with the floor slab, improves the overall integrity of the structure. This allows the hidden beam 3 and the floor slab to work together to bear the load, increasing the overall stiffness and load-bearing capacity. It ensures that the overall stiffness and stability meet the requirements, achieving beam-free areas in the interior, improving space utilization and aesthetics, addressing the renovation needs throughout the building's life cycle, and improving the quality of use of steel structure buildings. In addition, by connecting two frame columns or a frame column and structural beam 14 through the hidden beam 3, the lateral load-bearing capacity of the frame columns is improved, the lateral displacement of the structure is reduced, thereby reducing the amount of steel used in the frame columns, lowering costs, reducing construction intensity, and improving construction efficiency.

[0078] Specifically, such as Figure 14 and Figure 15 As shown, the floor slab also contains multiple first reinforcing bars 12 and second reinforcing bars 13, both of which are arranged perpendicular to the first slab surface reinforcing bars 5. The multiple first reinforcing bars 12 are spaced apart along the length of the first slab surface reinforcing bars 5, with a spacing of at least 100mm, and are located above the first slab surface reinforcing bars 5. The multiple second reinforcing bars 13 are spaced apart along the length of the first slab bottom reinforcing bars 6, with a spacing of at least 100mm, and are located below the first slab bottom reinforcing bars 6. By providing support for the first slab surface reinforcing bars 5 above the first slab surface reinforcing bars 5 through the first reinforcing bars 12, and by providing support for the first slab bottom reinforcing bars 6 below the first slab bottom reinforcing bars 6 through the second reinforcing bars 13, the overall structural strength is further improved, thereby increasing the load-bearing capacity.

[0079] Specifically, the first pre-set distance is equal to the second pre-set distance, and the first pre-set distance is greater than or equal to the thickness of the slab reinforcement protective layer plus twice the diameter of the first slab reinforcement 5, so as to ensure that there is enough space for arrangement.

[0080] Specifically, the third pre-set distance is greater than or equal to the sum of the thickness of the slab reinforcement protective layer and twice the diameter of the first slab reinforcement 5, to ensure sufficient arrangement space.

[0081] Specifically, the web of the steel structure hidden beam 3 is provided with a fifth opening for the second slab reinforcement 10 to pass through.

[0082] Specifically, the web of the steel structure hidden beam 3 is provided with a sixth opening for the second bottom reinforcement 11 to pass through.

[0083] Specifically, the second slab surface has multiple reinforcing bars 10, which are spaced apart along the length of the steel structure hidden beam 3 to improve the structural strength.

[0084] Specifically, the second bottom reinforcement bar 11 is provided in multiple pieces and is spaced apart along the length of the steel structure hidden beam 3 to improve the structural strength.

[0085] Specifically, the second slab surface reinforcement 10 and the second slab bottom reinforcement 11 are located between the top chord reinforcement and the bottom chord reinforcement of the third truss in order to improve the structural strength.

[0086] This embodiment provides a steel frame concealed beam structure, offering various connection methods for the steel concealed beam 3 embedded in the floor slab, depending on different situations. The specific method can be selected based on actual needs (e.g., different spans, different loads, different surface layer thicknesses, different beam-slab cooperative stress relationships, and different truss arrangement directions within the floor slab). This allows for the connection between two frame columns or between a frame column and a structural beam 14, meeting lateral resistance requirements, reducing lateral displacement of the structure, and thus reducing steel consumption and lowering steel structure costs. Furthermore, it ensures overall structural strength while achieving beam-free interior areas, improving space utilization and aesthetics, addressing the needs of renovation throughout the building's lifecycle, enhancing the quality of steel structure buildings, reducing construction difficulty, and improving construction efficiency. The use of first slab surface reinforcement 5, first slab bottom reinforcement 6, second slab surface reinforcement 10, second slab bottom reinforcement 11, additional surface reinforcement 7, and additional bottom reinforcement 8 connected within the floor slab improves structural integrity, allowing the floor slab and steel concealed beam 3 to cooperate in stress distribution, thereby increasing overall stiffness and load-bearing capacity. This addresses the technical challenges of weak rigidity and load-bearing capacity, high construction difficulty, and high cost associated with directly connecting steel frame structures with non-protruding beams and using concrete hidden beams to connect frame columns.

[0087] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A steel frame with concealed beams, characterized in that, include: Floor slab; The steel structure hidden beam (3) is parallel to the floor slab and is at least partially embedded in the floor slab; the bottom position of the steel structure hidden beam (3) is higher than or equal to the bottom position of the floor slab, and the two ends of the steel structure hidden beam (3) are respectively used to connect with two frame columns or structural beam (14) and frame columns. The floor slab includes a first floor slab (1) and a second floor slab (2); the steel structure hidden beam (3) is embedded between the first floor slab (1) and the second floor slab (2); when the building surface layer thickness is less than 100mm and the steel structure hidden beam (3) does not serve as a support for the floor slab, the top and bottom of the steel structure hidden beam (3) are flush with the top and bottom of the floor slab, respectively; a first truss is provided in the first floor slab (1); a second truss is provided in the second floor slab (2); the first truss and the... The second trusses are all parallel to the steel structure hidden beam (3); the first floor slab (1) is provided with a first slab surface reinforcement (5) and a first slab bottom reinforcement (6); one end of the first slab surface reinforcement (5) passes through the first floor slab (1), and the other end passes through the web of the steel structure hidden beam (3) and passes through the second floor slab (2); one end of the first slab bottom reinforcement (6) passes through the first floor slab (1), and the other end passes through the web of the steel structure hidden beam (3) and passes through the second floor slab (2); Alternatively, the floor slab includes a first floor slab (1) and a second floor slab (2); the steel structure hidden beam (3) is embedded between the first floor slab (1) and the second floor slab (2); when the building surface layer thickness is less than 100mm and the steel structure hidden beam (3) does not serve as a support for the floor slab, the top and bottom of the steel structure hidden beam (3) are respectively flush with the top and bottom of the floor slab; a first truss is provided in the first floor slab (1); a second truss is provided in the second floor slab (2); both the first truss and the second truss are connected to the steel structure hidden beam (2). The structural hidden beam (3) is perpendicular to the lower chord reinforcement of the second truss and the upper chord reinforcement of the second truss; the upper chord reinforcement of the first truss is connected to the upper chord reinforcement of the second truss through the additional reinforcement (7) on the slab surface; the additional reinforcement (7) on the slab surface passes through the steel structure hidden beam (3) in a direction perpendicular to the steel structure hidden beam (3); the lower chord reinforcement of the first truss is connected to the lower chord reinforcement of the second truss through the additional reinforcement (8) at the bottom of the slab; the additional reinforcement (8) at the bottom of the slab passes through the steel structure hidden beam (3) in a direction perpendicular to the steel structure hidden beam (3).

2. A steel frame with concealed beams, characterized in that, include: Floor slab; The steel structure hidden beam (3) is parallel to the floor slab and is at least partially embedded in the floor slab; the bottom position of the steel structure hidden beam (3) is higher than or equal to the bottom position of the floor slab, and the two ends of the steel structure hidden beam (3) are respectively used to connect with two frame columns or structural beam (14) and frame columns. The steel structure hidden beam (3) is embedded in the floor slab; the top of the steel structure hidden beam (3) is a first preset distance from the top of the floor slab; the bottom of the steel structure hidden beam (3) is a second preset distance from the bottom of the floor slab; the floor slab is provided with a second slab surface reinforcement (10) and a second slab bottom reinforcement (11); the second slab surface reinforcement (10) passes through the floor slab in a direction perpendicular to the steel structure hidden beam (3), and the second slab surface reinforcement (10) is located above the steel structure hidden beam (3); the second slab bottom reinforcement (11) passes through the floor slab in a direction perpendicular to the steel structure hidden beam (3), and the second slab bottom reinforcement (11) is located below the steel structure hidden beam (3); Alternatively, the steel structure hidden beam (3) is embedded in the floor slab; the top of the steel structure hidden beam (3) is a third pre-set distance from the top of the floor slab; the bottom of the steel structure hidden beam (3) is flush with the bottom of the floor slab; the floor slab is provided with a second slab surface reinforcement (10) and a second slab bottom reinforcement (11); the second slab surface reinforcement (10) passes through the floor slab in a direction perpendicular to the steel structure hidden beam (3), and the second slab surface reinforcement (10) is located above the steel structure hidden beam (3); the second slab bottom reinforcement (11) passes through the floor slab in a direction perpendicular to the steel structure hidden beam (3), and the second slab bottom reinforcement (11) is located between the upper flange plate and the lower flange plate of the steel structure hidden beam (3), and passes through the web of the steel structure hidden beam (3).

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