A floor beam

Abstract

The present application relates to the field of building technology, provide a kind of floor beam.The floor beam includes first cover plate, second cover plate and web component.The first cover plate is provided with first opening;Second cover plate is provided with second opening, and is spaced apart from the first cover plate, and first opening and second opening form a containing space;Web component is arranged in containing space, including first web and second web connected with each other, and a plurality of hollow protrusions are formed between first web and second web, and hollow protrusion is used to support first opening and second opening.The floor beam of the present application has higher bearing capacity and lateral stiffness, meets the normal use requirements under large bay size, solves the defects that floor beam bending resistance is weak, lateral stiffness is poor and local bending deformation is prone to occur in the conventional cold-formed thin-walled steel structure in the prior art, realizes a kind of combined floor beam with high degree of assembly, good applicability, suitable for industrial production and convenient connection, easy to disassemble.

Description

Technical Field

[0001] This invention relates to the field of building technology, and more particularly to a floor slab beam. Background Technology

[0002] Cold-formed thin-walled steel structures, as a new type of prefabricated steel structure, are widely used in the construction industry due to their advantages such as lightweight and high strength, high degree of industrialization and prefabrication, and environmental friendliness. In traditional cold-formed thin-walled steel floor beams, the beams are mostly composed of back-to-back spliced ​​beams made of C-shaped or U-shaped cold-formed thin-walled steel members, or truss beams composed of complex splicing of C-shaped cold-formed thin-walled steel members.

[0003] Traditional floor beams often use composite beams, whose cross-section consists of a vertical web and two horizontal flanges. The flanges and web are relatively thin and long. Under compression, the flanges tend to rotate around the line of intersection with the web, causing the web to rotate accordingly. This results in local bending deformation and weak compressive strength. Truss beams use many spliced ​​components, and their cross-sections are often tall and narrow. This results in low lateral stiffness, and under compression, due to the complex splice joints and uneven force transmission, they are prone to local deformation and out-of-plane bending and torsional deformation. Summary of the Invention

[0004] This invention provides a floor beam to address the shortcomings of existing cold-formed thin-walled steel floor beams, such as weak bending resistance, poor lateral stiffness, and susceptibility to localized bending deformation. It achieves a modular floor beam with high prefabrication, good applicability, suitability for industrial production, convenient connection, and easy disassembly. Furthermore, a novel connection method is proposed to enhance the connection effect between traditional floor beams and better meet the design requirements of uniform and distributed force transmission between floor beams.

[0005] This invention provides a floor slab beam, comprising:

[0006] The first cover plate has a first opening;

[0007] The second cover plate has a second opening, which is spaced apart from the first cover plate, and a receiving space is formed between the first opening and the second opening;

[0008] A web assembly, disposed in the receiving space, includes a first web and a second web connected to each other, with a plurality of hollow protrusions formed between the first web and the second web, the hollow protrusions being used to support the first opening and the second opening.

[0009] According to the floor beam provided by the present invention, the first web and the second web have the same structure, each including multiple troughs and crests, the troughs and crests being alternately arranged; the troughs on the first web and the second web are connected one-to-one; the crests on the first web and the second web are connected one-to-one and form the hollow protrusion.

[0010] According to the floor beam provided by the present invention, the cross-sections of the trough and the crest include trapezoidal, rectangular or triangular shapes.

[0011] According to the floor beam provided by the present invention, fixing components are sleeved inside both ends of the first cover plate and the second cover plate.

[0012] According to the floor beam provided by the present invention, the fixing component includes:

[0013] A first fastener is disposed between the first web and the second web for connecting the first web and the second web;

[0014] A partition is provided on the first fixing member;

[0015] The second fastener is located at both ends of the first fastener;

[0016] The first web plate, the second web plate, and the fixing assembly are connected and disposed between the first cover plate and the second cover plate.

[0017] The floor beam provided by the present invention further includes a connector, which is connected to the second fixing member for connecting two floor beams.

[0018] According to the floor beam provided by the present invention, the first cover plate and the second cover plate are both connected to the web assembly by fasteners; the first cover plate and the second cover plate are respectively connected to the corresponding fixing components by fasteners; the first web and the second web are connected by fasteners.

[0019] According to the floor beam provided by the present invention, at least one of the first opening and the second opening is provided with a retaining edge.

[0020] According to the floor beam provided by the present invention, a reinforcing member is provided at the connection between two adjacent floor beams, the reinforcing member being used to strengthen the connection between adjacent web components.

[0021] The above-described one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0022] The multiple hollow protrusions in this invention can withstand significant pressure and shear deformation, effectively dispersing and transferring loads, thus improving the structure's compressive strength and bending stiffness. Furthermore, a series of cavities are formed between the hollow protrusions, which can absorb energy and disperse impact forces. Therefore, the hollow protrusions provide good seismic and impact resistance when subjected to impact or vibration. The hollow protrusion structure also exhibits isotropic characteristics, meaning it possesses similar mechanical properties in different directions. This ensures that the hollow protrusion structure provides uniform mechanical properties during use. Consequently, the floor beams can achieve higher local buckling resistance, out-of-plane stiffness, and greater torsional, shear, and compressive strength, providing excellent support and reinforcement.

[0023] Furthermore, the hollow protrusion structure has a large cavity, thus achieving lightweight while maintaining strength. Based on the strong supporting performance of the above structure, the first cover plate, second cover plate, web assembly, and fixing assembly of the present invention can be made of thin-walled cold-formed steel sheets, thereby saving material usage and reducing production costs to some extent.

[0024] Furthermore, the first fastener in the fixing assembly not only provides fixed support for the aforementioned structure within the beam, but also acts as a tie to a certain extent. The second fastener in the aforementioned structure is located at the end of the first fastener, and it connects the first cover plate, second cover plate, and web assembly between two adjacent floor beams via a connector. Due to the special arrangement of the first fastener, the force at the connection end is largely transferred to the first fastener, thereby dispersing the force transmission direction of the first cover plate, second cover plate, and web at the splice point, resulting in a better connection.

[0025] Furthermore, the partition plate located in the middle of the first fastener in the fixing assembly has good shear resistance. In the above structure, the partition plates are located at both ends of the floor beam and are arranged between adjacent first fasteners. Through the skin effect generated when they are subjected to bending stress, they provide a certain shear bearing capacity to the beam ends. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is an exploded structural diagram of the floor beam provided by the present invention;

[0028] Figure 2 This is a schematic diagram of the combined structure of the floor beams provided by the present invention;

[0029] Figure 3 This is a front view of the floor beam provided by the present invention;

[0030] Figure 4 This is a plan view of the connection structure between two floor beams provided by the present invention;

[0031] Figure 5 This is a perspective view of the connection structure between two floor beams provided by the present invention;

[0032] Figure 6 This is a structural schematic diagram of the connecting component for the floor beam provided by the present invention;

[0033] Figure 7 This is a schematic diagram of the structure of the first cover plate of the floor beam provided by the present invention;

[0034] Figure 8 This is a top view of the first web of the floor beam provided by the present invention.

[0035] Figure label:

[0036] 100: First cover plate; 110: Side guard; 200: Second cover plate; 300: Web plate assembly; 310: First web plate; 311: Corridor; 312: Corridor; 320: Second web plate; 400: Fastener; 500: Fixing assembly; 510: First fastener; 520: Partition; 530: Second fastener; 600: Reinforcing member; 700: Connector. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0038] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "first" and "second" are used to clearly indicate the product components and do not represent any substantial difference. The directions of "upper" and "lower" are based on the directions shown in the accompanying drawings. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances. Furthermore, "multiple" means two or more. In the specification, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0039] 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.

[0040] Reference Figures 1 to 8 The present invention provides a floor slab beam.

[0041] Figure 1 An exploded structural diagram of a floor beam provided in an embodiment of the present invention is illustrated. Figure 3 An example of a front view of a floor beam provided in an embodiment of the present invention is shown.

[0042] Reference Figure 1 and Figure 3 The floor beam provided in this embodiment of the invention includes a first cover plate 100, a second cover plate 200, and a web assembly 300.

[0043] The first cover plate 100 is provided with a first opening;

[0044] The second cover plate 200 is provided with a second opening, which is spaced apart from the first cover plate 100, and a receiving space is formed between the first opening and the second opening.

[0045] The web assembly 300 is disposed in the receiving space and includes a first web 310 and a second web 320 connected to each other. A plurality of hollow protrusions are formed between the first web 310 and the second web 320, and the hollow protrusions are used to support the first opening and the second opening.

[0046] The above structure has the following advantages:

[0047] First, each hollow protrusion can withstand significant pressure and shear deformation, effectively dispersing and transferring loads, thus improving the structure's compressive strength and bending stiffness. Furthermore, a series of cavities are formed between the hollow protrusions, which absorb energy and disperse impact forces. Therefore, the hollow protrusions provide good seismic and impact resistance when subjected to impact or vibration. The hollow protrusion structure also exhibits isotropy, meaning it possesses similar mechanical properties in different directions. This allows the hollow protrusion structure to provide uniform mechanical properties during use. Consequently, the floor beams can achieve higher local buckling resistance, out-of-plane stiffness, and greater torsional, shear, and compressive strength, providing effective support and reinforcement.

[0048] Secondly, the hollow protrusion structure has a large cavity, thus achieving lightweight while maintaining strength. Based on the strong supporting performance of the above structure, the first cover plate 100, the second cover plate 200, and the web assembly 300 of this invention can be made from thin-walled cold-formed steel sheets, thereby saving material usage and reducing production costs to some extent.

[0049] Third, the first fastener in the fixing assembly not only provides fixed support for the aforementioned structure within the beam, but also acts as a tie to a certain extent. The second fastener in the aforementioned structure is located at the end of the first fastener, connecting the first cover plate, second cover plate, and web assembly between two adjacent floor beams via a connector. Due to the special arrangement of the first fastener, the force at the connection end is largely transferred to the first fastener, thereby dispersing the force transmission direction of the first cover plate, second cover plate, and web at the splice, resulting in a better connection.

[0050] Fourth, the partition plate located in the middle of the first fastener in the fixing assembly has good shear resistance. In the above structure, the partition plate is located at both ends of the floor beam and is set between adjacent first fasteners. Through the skin effect generated when it is subjected to bending stress, it provides a certain shear bearing capacity to the beam ends.

[0051] Specifically, the materials for the first cover plate 100, the second cover plate 200, and the web assembly 300 can be Q235 steel, Q345 steel, Q390 steel, or Q420 steel, etc. The first cover plate 100 and the second cover plate 200 can be U-shaped steels, with two U-shaped steels spaced vertically apart, and the spacing between the two side plates of the two U-shaped steels is the same. During installation, one end of the hollow protrusion of the web assembly 300 is fastened to the interior of one U-shaped steel using a fastener 400, and fits against the two sides of the U-shaped steel to ensure a tight connection between the U-shaped steel and the web assembly 300. The other end of the hollow protrusion of the web assembly 300 is similarly positioned inside another U-shaped steel. Furthermore, the two flanges of the U-shaped steel and the hollow protrusion of the web assembly 300 are tightly fitted together, and the connection between them can be achieved by fasteners 400 penetrating through the flanges of the U-shaped steel and the hollow protrusion of the web assembly 300. The fastener 400 may include one or a combination of self-tapping screws, self-drilling screws, rivets, rivets, one-way bolts and expansion bolts.

[0052] In some possible embodiments, the hollow protrusions can be arranged in one row or multiple rows along the length of the first cover plate 100. When there is one row of hollow protrusions, the outermost edges of all hollow protrusions are located on the same plane; when there are multiple rows of hollow protrusions, the outermost edges of the two outermost rows of hollow protrusions are also located on the same plane, thereby allowing them to better fit with the two sides of the U-shaped steel and increasing the tightness of the connection. Specifically, the hollow protrusions are cylindrical structures, and the shape of their cross-section can be polygonal, such as triangular, quadrilateral, pentagonal, or hexagonal.

[0053] Figure 8 An example is shown: a top view of the first web of a floor beam provided in an embodiment of the present invention (which may also be a top view of the second web).

[0054] Reference Figure 8 In some embodiments of the present invention, the first web 310 and the second web 320 have the same structure, each including multiple troughs 311 and crests 312, which are staggered; the troughs 311 on the first web 310 and the second web 320 are connected one-to-one; the crests 312 on the first web 310 and the second web 320 are connected one-to-one and form hollow protrusions. The cross-sections of the troughs 311 and the crests 312 include trapezoids, rectangles, or triangles.

[0055] It is understandable that, such as Figure 8 As shown, the first web 310 and the second web 320 are trapezoidal, with the upward-curving portion being the trough 311 and the downward-curving portion being the crest 312. The bottom of the trough 311 and the top of the crest 312 are both flat. During assembly, the trough 311 of the first web 310 must fit snugly against the trough 311 of the second web 320, and the crest 312 of the first web 310 must connect with the crest 312 of the second web 320. After the troughs 311 of the first web 310 and the troughs 311 of the second web 320 are snugly against each other, they are connected by fasteners 400. When the crests 312 of the first web 310 and the crest 312 of the second web 320 are connected, they form a back-to-back structure that protrudes to both sides, i.e., a hollow protrusion.

[0056] The back-to-back connection of the two corrugated sections 312 allows them to share the load. When one corrugated section 312 bears a load, the back-to-back connection allows the load to be transferred along the connection surface to the other corrugated section 312, thus achieving load balance. This reduces the stress on a single corrugated section 312 and increases the load-bearing capacity of the web assembly 300. Secondly, the rigid connection between the two back-to-back corrugated sections 312 increases the overall stiffness of the structure. Under external loads, the rigidity at the connection effectively resists the deformation of the first cover plate 100 and the second cover plate 200, maintaining a more stable shape for both. This contributes to improving the overall strength and stability of the floor beam. Furthermore, the back-to-back connection of the two corrugated sections 312 effectively prevents lateral displacement. Due to the back-to-back connection, the mutual constraint between the two corrugated sections 312 resists lateral forces, thereby reducing lateral displacement and deformation of the web assembly 300.

[0057] It should be noted that in some possible embodiments, the shapes of the troughs 311 and crests 312 at different locations of the first web 310 can be different; that is, the shapes of the troughs 311 and crests 312 at different locations of the first web 310 can be any combination of trapezoids, rectangles, triangles, sine waves, and circular arcs. When the troughs 311 and crests 312 are trapezoids, the angle between their two hypotenuses is 30°-150°. Specifically, in some other possible embodiments, both the first web 310 and the second web 320 are YX75-150-9000 trapezoidal cross-section profiled steel sheets with a height of 75mm, a wave pitch of 150mm, a thickness of 0.8mm, and a width of 9000mm.

[0058] See Figure 1 In some embodiments of the present invention, the fixing component 500 includes:

[0059] The first fastener 510 is disposed between the first web plate 310 and the second web plate 320 and is used to connect the first web plate 310 and the second web plate 320.

[0060] The partition 520 is disposed between adjacent first fixing members 510;

[0061] The second fastener 530 is disposed at both ends of the first fastener 510;

[0062] The first web plate 310, the second web plate 320 and the fixing component 500 are assembled together and are located between the first cover plate 100 and the second cover plate 200.

[0063] Specifically, there are two sets of first fixing members 510, arranged back-to-back. Each set includes two first fixing members 510, which are symmetrically arranged vertically and correspondingly located within the first cover plate 100 and the second cover plate 200. It can be understood that the two first fixing members 510 in the first set are spaced vertically on the first web plate 310; the two first fixing members 510 in the second set are spaced vertically on the second web plate 320. The upper first fixing members 510 in the first and second sets are arranged back-to-back, and the lower first fixing members 510 in the first and second sets are also arranged back-to-back.

[0064] Two partitions 520 are provided, and the two partitions 520 are located between the two sets of first fixing members 510, with the two partitions 520 respectively located at both ends of the first fixing members 510. The partitions 520 can improve the shear resistance of this device.

[0065] Four second fasteners 530 are provided. As described above, the two upper first fasteners 510 are connected back-to-back to form a first unit, and the two lower first fasteners 510 are connected back-to-back to form a second unit. Two second fasteners 530 are respectively installed at both ends of the first unit, and the other two second fasteners 530 are respectively installed at both ends of the second unit. When assembled (see reference for details) Figure 2 The first integral and the two second fasteners 530 connected thereto are located inside the first cover plate 100; the second integral and the two second fasteners 530 connected thereto are located inside the second cover plate 200. The four second fasteners 530 are located at both ends of the first cover plate 100 and the second cover plate 200, respectively, for connection with other floor beams.

[0066] In the above structure, the fixing component 500 not only provides fixed support for the two sides of the first cover plate 100 and the second cover plate 200, but also strengthens the weak points of the splice joint, thereby strengthening the connection at the splice of the two floor beams.

[0067] Figure 5 A perspective view of the connection structure between two floor beams provided in an embodiment of the present invention is illustrated. Figure 6 A schematic diagram of the structure of the third connector of the floor beam provided in an embodiment of the present invention is shown.

[0068] Reference Figure 5 and Figure 6It also includes a connector 700, which is connected to the second fixing member 530 for connecting two floor beams. Specifically, the connector 700 is a rectangular steel cylinder with two through openings. When connecting two floor beams, one end of the connector 700 can be inserted into the second fixing member 530 of one floor beam, and the other end of the connector 700 can be inserted into the second fixing member 530 of the other floor beam.

[0069] In some embodiments of the present invention, the first cover plate 100 and the second cover plate 200 are both connected to the web plate assembly 300 by fasteners 400; the first cover plate 100 and the second cover plate 200 are connected to the corresponding fixing assembly 500 by fasteners 400; the first web plate 310 and the second web plate 320 are connected by fasteners 400.

[0070] The unique floor beam splicing method described above allows for the disassembly and replacement of individual floor beams as needed, making maintenance and repair work more convenient. No damage to the original structure or use of special tools is required; repairs or replacements can be performed simply by disassembling the connecting parts. This invention features simple construction, convenient manufacturing, easy and reliable construction, and no need for on-site welding, making it more in line with my country's green building construction requirements. It can reduce on-site construction steps, lower construction difficulty, save construction costs, and conserve steel, making its application in prefabricated cold-formed thin-walled steel structure buildings of significant practical engineering value.

[0071] Figure 7 A schematic diagram of the structure of the first cover plate of the floor beam provided in an embodiment of the present invention is shown.

[0072] Reference Figure 7 In some embodiments of the present invention, at least one of the first opening and the second opening is provided with a retaining edge 110. Specifically, this embodiment includes at least three schemes: Scheme 1: retaining edges 110 are provided only on both sides of the first opening; Scheme 2: retaining edges 110 are provided only on both sides of the second opening; Scheme 3: retaining edges 110 are provided on both sides of the first opening and the second opening. It should be noted that in Scheme 1, the first cover plate 100 and the second cover plate 200 are arranged vertically spaced apart, and the first cover plate 100 is located on top of the second cover plate 200. In Scheme 2, the first cover plate 100 and the second cover plate 200 are arranged vertically spaced apart, and the second cover plate 200 is located on top of the first cover plate 100. The retaining edge 110 is used to engage with the floor slab assembly. When the floor slab assembly needs to be installed, the floor slab assembly can be overlapped on the retaining edge 110, and the floor slab assembly and the retaining edge 110 can be fixedly connected by fasteners 400.

[0073] Figure 4 A plan view of the connection structure between two floor beams provided in an embodiment of the present invention is illustrated.

[0074] Reference Figure 4 In some embodiments of the present invention, a reinforcing member 600 may be provided at the connection between two adjacent floor beams. Specifically, the reinforcing member 600 is a rectangular plate used to connect two adjacent web components 300. During connection, the rectangular plate is attached to the splice of the web components of the two floor beams, and then fastened to the connection of the floor beams by fasteners 400 passing through the reinforcing member 600. The function of the reinforcing member 600 is to reinforce the connection at the splice, preventing the two adjacent floor beams from detaching and causing accidents. Of course, the reinforcing member 600 is not limited to a rectangular plate; it can also be other shapes.

[0075] The following provides the assembly method for floor slab beams: (It should be noted that the step numbers below are for ease of description only and are not a strict requirement for their order.)

[0076] S1: The four first fixing parts 510 are joined back to back to form two sets of symmetrically arranged beams and ridges.

[0077] S2: The troughs 311 on the first web plate 310 and the second web plate 320 are fitted together, and the two sets of first fasteners 510 that have been assembled are fixed on the upper and lower sides of the troughs 311 respectively, and their fit points are connected by fasteners 400.

[0078] S3: Place the connected first web plate 310 and second web plate 320 between the first cover plate 100 and the second cover plate 200, so that the top side of the crest portion 312 is attached to the first cover plate 100 and the bottom side of the crest portion 312 is attached to the two sides of the second cover plate 200, and are connected by fasteners 400.

[0079] Below are two methods for splicing floor beams:

[0080] S10: Connect the second fixing member 530 to both ends of the first cover plate 100 and the second cover plate 200, so that the second fixing member 530 and the first fixing member are connected back to back; specifically, the second fixing member 530 is connected to the first fixing member 510 by bolt connection.

[0081] S20: One end of the connector 700 is fitted into the second fixing member 530 of a floor beam and fixed by the fastener 400; then the other end of the connector 700 is fitted into the second fixing member 530 of another floor beam and fixed by the fastener 400.

[0082] S30: The reinforcement 600 is attached to the connection between the two floor beams and connected by the fastener 400.

[0083] 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 of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A floor slab beam, characterized in that, include: The first cover plate (100) has a first opening; The second cover plate (200) has a second opening, which is spaced apart from the first cover plate (100), and a receiving space is formed between the first opening and the second opening; A web assembly (300) is disposed in the receiving space, including a first web (310) and a second web (320) connected to each other, wherein a plurality of hollow protrusions are formed between the first web (310) and the second web (320), the hollow protrusions being used to support the first opening and the second opening; A fixing component (500) is sleeved inside both ends of the first cover plate (100) and the second cover plate (200); The fixing component (500) includes: Two sets of first fasteners are arranged back-to-back between the first web plate (310) and the second web plate (320). Each set of first fasteners includes two first fasteners (510). In one set of first fasteners, the two first fasteners (510) are arranged vertically and horizontally at intervals on the first web plate (310), and in the other set of first fasteners, the two first fasteners (510) are arranged vertically and horizontally at intervals on the second web plate (320). A partition (520) is disposed between the two sets of first fixing members; Four second fasteners (530), two of which are respectively installed at both ends of the two first fasteners (510) arranged back-to-back above, and the other two are respectively installed at both ends of the two first fasteners (510) arranged back-to-back below.

2. The floor beam according to claim 1, characterized in that, The first web (310) and the second web (320) have the same structure, each including multiple troughs (311) and crests (312), which are staggered; the troughs (311) on the first web (310) and the second web (320) are connected one-to-one; the crests (312) on the first web (310) and the second web (320) are connected one-to-one and form the hollow protrusion.

3. The floor beam according to claim 2, characterized in that, The cross-sections of the trough (311) and the crest (312) include trapezoidal, rectangular or triangular shapes.

4. The floor beam according to claim 1, characterized in that, It also includes a connector (700) connected to the second fastener (530) for connecting the two floor beams.

5. The floor beam according to claim 1, characterized in that, The first cover plate (100) and the second cover plate (200) are both connected to the web plate assembly (300) by fasteners (400); the first cover plate (100) and the second cover plate (200) are respectively connected to the corresponding fixing assembly (500) by fasteners (400); the first web plate (310) and the second web plate (320) are connected by fasteners (400).

6. The floor beam according to any one of claims 1-5, characterized in that, At least one of the first opening and the second opening is provided with a retaining edge (110).

7. The floor beam according to any one of claims 1-5, characterized in that, A reinforcement member (600) is provided at the connection between two adjacent floor beams, the reinforcement member (600) being used to strengthen the connection between adjacent web components (300).

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