Load-bearing type hot-rolled metal steel beam structure

Abstract

The invention relates to the technical field of steel structures, in particular to a bearing type hot-rolled metal steel beam structure which comprises a vertical beam, cross beams are connected to the two parallel side faces of the vertical beam through fasteners formed by a plurality of sets of screws and first nuts, a plurality of penetrating openings are formed in one side face of each cross beam at equal intervals, and a plurality of column rods are arranged on the two sides of each cross beam. Threaded blind holes are machined in the two ends of each column rod, studs are in threaded connection with the interiors of the opposite threaded blind holes of every two adjacent column rods, rooting plates are inserted into the penetrating openings, the studs penetrate through the rooting plates, second nuts are arranged on the two sides, in the length direction of the studs, of the rooting plates, and the second nuts are in threaded connection with the studs. The invention has the following beneficial effects: the load is uniformly distributed on the whole cross beam and the connecting structure, the acting force is prevented from being concentrated on the connecting part of the cross beam and the vertical beam, and the hidden danger of stress concentration is fundamentally eliminated.

Description

Technical Field

[0001] This invention relates to the field of steel structure technology, specifically a load-bearing hot-rolled metal steel beam structure. Background Technology

[0002] The connection between the vertical and horizontal beams of an I-beam is a common assembly method in the construction of heavy-duty hot-rolled steel beams. Leveraging the excellent bending and shear strength of the I-beam itself, it provides stable structural support for heavy load-bearing applications, making it suitable for construction scenarios with high load-bearing capacity requirements, such as industrial plants and large warehouses. In this connection structure, the ends of the horizontal beams are rigidly connected to the vertical I-beams via multiple sets of bolts. The tightness of the bolts allows the two to form an integrated load-bearing structure, theoretically enabling effective load transfer and distribution.

[0003] However, in actual use, this direct end-bolt connection method has obvious structural weaknesses. The vertical pressure, horizontal shear force, and other forces borne by the beams act directly and concentratedly at the connection point between the beams and vertical beams, making it impossible for the structure itself to distribute the stress. This places higher demands on the structural strength, bolt tightening torque, and arrangement of the beam-to-beam connection. Not only must the steel beam base material at the connection point have sufficient load-bearing capacity, but each group of bolts must also bear the load evenly to avoid overloading any single group. If the steel beam at the connection point has material defects, the bolts are not properly tightened, or the arrangement is unreasonable, stress concentration at the connection point can easily occur. Under long-term load, this can lead to bolt loosening, base material deformation, or even cracking at the connection point, affecting the stability and safety of the entire steel beam structure. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a load-bearing hot-rolled metal steel beam structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a load-bearing hot-rolled metal steel beam structure, comprising a vertical beam, wherein a horizontal beam is connected to two parallel sides of the vertical beam by fasteners formed by multiple sets of screws and first nuts. The cross-sections of the horizontal beam and the vertical beam are both "I" shaped. Multiple through holes are equidistantly opened on one side of the horizontal beam. Multiple columns are provided on both sides of the horizontal beam, one of the columns passing through the vertical beam. Both ends of the column are machined with threaded blind holes. Studs are threadedly connected to the threaded blind holes of two adjacent columns. Rooting plates are inserted into the through holes. The studs pass through the rooting plates. Second nuts are provided on both sides of the rooting plates along the length of the studs. The second nuts are threadedly connected to the studs. Based on the conventional connection of I-beam vertical and horizontal beams, an auxiliary load-bearing system consisting of columns, studs, and anchor plates is added. Multiple columns penetrate the vertical beams to form lateral support, studs connect the columns to form an overall load-bearing frame, and anchor plates are inserted into the horizontal beam through-holes and locked with studs. This disperses the vertical pressure and horizontal shear force borne by the horizontal beams from the connection nodes of the vertical and horizontal beams to the entire load-bearing system, allowing the load to be evenly distributed on the horizontal beams and connecting structures, eliminating the potential for stress concentration at the connection points. All components are connected by threads and nuts, allowing for flexible assembly. At the same time, the foundation structure of the I-beam retains its original excellent bending and shear resistance, ensuring the overall load-bearing capacity of the steel beam and making it suitable for heavy load applications.

[0006] Specifically, end seats are welded to both ends of the crossbeam. Two rows of first small holes are formed on one side of each end seat, and two rows of second small holes are formed on each of the two parallel sides of the vertical beam. The first and second small holes are aligned. One end of the screw passes through both the first and second small holes and is threaded onto a first nut. Welding end seats to the ends of the crossbeam increases the contact area between the crossbeam and the vertical beam, allowing the tightening force of the screw to be evenly distributed and preventing excessive localized stress and deformation at the end of the crossbeam. The precise alignment of the end seats with the first and second small holes of the vertical beam, along with the arrangement of multiple sets of screws in two rows, enables multi-point tightening, making the connection between the crossbeam and vertical beams more robust, improving the shear and tensile strength of the connection, and preventing relative displacement under load. The detachable connection between the screw and the first nut facilitates on-site assembly and subsequent disassembly and maintenance of the steel beam, eliminating the need for specialized welding equipment and reducing construction difficulty.

[0007] Specifically, the end seat has two first through holes on the side facing the vertical beam, and the vertical beam has two second through holes aligned with the first through holes on each of its two parallel sides. The column rod passes through the channel formed by the first and second through holes. The column rod passing through the first through holes of the end seat and the second through holes of the vertical beam provides positioning guidance for the connection between the horizontal beam and the vertical beam, ensuring the perpendicularity and coaxiality of the connection between the two, and making the force transmission smoother.

[0008] Specifically, two reinforcing ribs are welded to the side of the end seat facing away from the vertical beam, and the end of the reinforcing rib away from the end seat is welded and fixed to the crossbeam. The reinforcing ribs are welded between the end seat and the crossbeam to form a triangular support structure, which greatly enhances the structural rigidity of the end seat.

[0009] Specifically, the structure formed by the multiple columns is fitted with two semi-circular sleeves for detecting whether the columns are bent. The cross-section of each semi-circular sleeve is "C"-shaped, and there is a gap between the two semi-circular sleeves. The two semi-circular sleeves are connected by a connector. Both ends of the rooting plate are machined with two notches to allow the semi-circular sleeves to pass over the rooting plate. The two semi-circular sleeves are spliced ​​together to form a column deformation detection component, which can be fitted snugly on the outside of the column to monitor deformation. When the crossbeam bends and causes the column to deform, the semi-circular sleeves will become stuck and unable to slide smoothly. The staff can intuitively and quickly judge the structural hidden dangers, realize early detection and early treatment, and prevent small hidden dangers from developing into serious failures. The notch design at both ends of the rooting plate allows the semi-circular sleeves to pass over the rooting plate smoothly and slide freely along the column.

[0010] Specifically, the connector includes connecting plates. Connecting plates are installed on the lower parts of the outer surfaces of both semicircular sleeves. Lugs are installed at the adjacent ends of the two connecting plates. Horizontal holes are formed on the opposite surfaces of the lugs. A screw is inserted into the channel formed by the two horizontal holes. Third nuts are provided on both sides of the lugs along the length of the screw, and the third nuts are threadedly connected to the screw. The connecting plates provide a stable mounting base for the semicircular sleeves and connect the two semicircular sleeves into a whole. The cooperation between the lugs and the screw allows for flexible adjustment of the semicircular sleeve spacing to meet different testing needs. After the screw passes through the horizontal holes of the lugs, the relative position of the screw and the connecting plate can be fixed by locking with the third nuts, thereby achieving precise positioning of the semicircular sleeve spacing. After adjustment, the structure is stable and will not shift due to vibration or external force. The entire connector has a simple structure and is easy to operate. Spacing adjustment can be completed without professional tools, improving the flexibility of testing operations.

[0011] Specifically, a vertically arranged handle rod is provided between the two support ears. A threaded sleeve is threadedly connected to the upper end of the handle rod. A connecting part is fixedly connected to the upper end of the threaded sleeve. A twisted part is installed at one end of the connecting part. An ear plate is installed at the end of the twisted part away from the connecting part. A through hole is opened on one side of the ear plate. The ear plate is located between the two support ears. A fourth nut is provided on both sides of the through hole along the length of the screw. The fourth nut is threadedly connected to the screw. Tightening the fourth nut ensures a constant relative position between the ear plate and the screw, thus stabilizing the relative position between the connecting part and the semi-circular sleeve, providing a reliable foundation for the assembly of the handle rod. The handle rod is threadedly connected to the threaded sleeve, allowing for quick assembly with the connecting part. Workers can hold the handle rod and push the semi-circular sleeve for testing while standing on the ground, eliminating the need for climbing and improving the convenience and safety of the testing. After testing, the handle rod can be quickly unscrewed for separation, making storage and subsequent use more flexible. The twisted part design allows the connecting part and the ear plate to form a matching connection angle, making the application of force on the handle rod smoother and requiring less effort when pushing the semi-circular sleeve.

[0012] Specifically, the ear plate portion and the twisted portion are integrally molded structures, as are the connecting portion and the twisted portion, and the connecting portion and the ear plate portion are arranged perpendicular to each other. The ear plate portion, twisted portion, and connecting portion are integrally molded structures without seams, resulting in stronger structural rigidity, the ability to withstand external forces during operation, preventing breakage and deformation, and extending the service life of the operating components.

[0013] Specifically, a rectangular opening is provided on one side of the connecting plate, and the end of the connecting plate away from the semi-circular sleeve contacts the bottom of the inner side of the crossbeam. This rectangular opening design on the connecting plate effectively reduces material usage and lowers manufacturing costs without affecting structural strength and support performance.

[0014] Specifically, the rooting board has end holes at both ends, through which the stud passes. The rooting board has a rectangular cross-section, and the through-hole has a rectangular cross-section. The end holes at both ends of the rooting board allow the stud to be precisely inserted, achieving a firm connection between the rooting board and the stud and ensuring effective force transmission. Both the rooting board and the through-hole have rectangular cross-sections, allowing for a precise fit without gaps or wobbling, enabling the rooting board to withstand loads more stably.

[0015] The beneficial effects of this invention are:

[0016] Multiple columns pass through the vertical beam and end seat to form a lateral force support. Studs connect adjacent columns to form an overall force-bearing frame. Rooting plates are inserted through the openings and connected to the studs using second nuts. This disperses the vertical pressure and horizontal shear force borne by the beam from the connection points to the force-bearing system composed of columns, studs, and rooting plates, so that the load is evenly distributed on the entire beam and the connection structure, avoiding the concentration of force at the connection points of the beam and vertical beam, and fundamentally eliminating the hidden danger of stress concentration.

[0017] Adjusting the length of the stud in the threaded blind hole on the stud rod makes it easier to select the appropriate number of stud rods according to the length of the crossbeam, and also makes it easier to adjust the spacing of the through holes machined on the crossbeam, thus expanding the range of applications.

[0018] Two semi-circular sleeves are spliced ​​and fitted onto the outside of the column. The rooting plate has notches at both ends, allowing the semi-circular sleeves to slide freely across the rooting plate on the column. Workers can push the semi-circular sleeves along the entire length of the column for inspection. When the crossbeam is subjected to force and bends, the structure formed by multiple columns will also bend. At this time, the structure formed by the two semi-circular sleeves cannot slide smoothly along the track formed by multiple columns. Workers can quickly judge the deformation of the column, realize the monitoring of potential structural hazards, and prevent small hazards from developing into structural failures.

[0019] Adjusting the distance between the two semicircular sleeves changes the relative position of the screw and the connecting plate. The third nut restricts the relative position of the screw and the connecting plate, allowing the distance between the semicircular sleeves to be adjusted as needed. When the distance between the two semicircular sleeves increases, slight deformation of the crossbeam can be detected, thereby improving the accuracy of detecting the bending deformation of the crossbeam.

[0020] By using the fourth nut to keep the ear plate and the screw in a constant relative position, the connecting part and the semi-circular sleeve are kept in a constant relative position. This allows the longer handle rod to be threaded into the threaded sleeve, completing the assembly of the handle rod and the connecting part. As a result, the worker can stand on the ground and move the semi-circular sleeve using the handle rod, eliminating the need for climbing or going up to the bottom. After the inspection is completed, the handle rod can be separated from the threaded sleeve. Attached Figure Description

[0021] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a structural schematic diagram of a load-bearing hot-rolled metal steel beam structure according to the present invention;

[0023] Figure 2 This is another perspective view of a load-bearing hot-rolled metal steel beam structure according to the present invention;

[0024] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0025] Figure 4 This is a schematic diagram of the assembly of horizontal and vertical beams in a load-bearing hot-rolled metal steel beam structure according to the present invention.

[0026] Figure 5 This is a schematic diagram of the assembly of studs, rooting plates and column rods in a load-bearing hot-rolled metal steel beam structure according to the present invention;

[0027] Figure 6 This is an exploded structural diagram of the handle rod, screw rod, and semi-circular sleeve in a load-bearing hot-rolled metal steel beam structure according to the present invention.

[0028] Figure 7 This is a schematic diagram of the assembly of studs, rooting plates, semi-circular sleeves and column rods in a load-bearing hot-rolled metal steel beam structure according to the present invention.

[0029] In the picture:

[0030] 100. Vertical beam; 101. Second perforation; 200. Horizontal beam; 201. End seat; 2011. Reinforcing rib; 2012. First perforation; 202. Through hole; 300. Column; 301. Rooting plate; 3011. Notch; 3012. End hole; 302. Stud; 303. Second nut; 304. Threaded blind hole; 400. Screw; 401. First nut; 500. Handle rod; 501. Threaded sleeve; 502. Connecting part; 5021. Twisted part; 5022. Ear plate part; 5023. Through hole; 503. Fourth nut; 600. Semicircular sleeve; 601. Connecting plate; 6011. Rectangular opening; 6012. Support ear; 6013. Horizontal hole; 602. Screw; 6021. Third nut. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] Please see Figures 1-7 The present invention provides a technical solution: a load-bearing hot-rolled metal steel beam structure, including a vertical beam 100 with an "I"-shaped cross-section, and a horizontal beam 200 with an "I"-shaped cross-section connected to two parallel sides of the vertical beam 100 by fasteners formed by multiple sets of screws 400 and a first nut 401; both ends of the horizontal beam 200 are welded with end seats 201, and two reinforcing ribs 2011 are welded to the side of the end seat 201 away from the vertical beam 100, so that the end of the reinforcing rib 2011 away from the end seat 201 is welded and fixed to the horizontal beam 200, thereby improving the mechanical strength of the connection between the horizontal beam 200 and the end seat 201.

[0033] The end seat 201 has two rows of first small holes on one side, and the vertical beam 100 has two rows of second small holes on its two parallel sides. The first small holes and the second small holes are aligned so that one end of the screw 400 passes through the first small hole and the second small hole in sequence and is threaded to the first nut 401, thus completing the assembly of the cross beam 200 and the vertical beam 100.

[0034] The crossbeam 200 has multiple through holes 202 evenly spaced on one side, and multiple columns 300 are provided on both sides of the crossbeam 200; the end seat 201 has two first through holes 2012 on the side facing the vertical beam 100, and two second through holes 101 aligned with the first through holes 2012 are provided on each of the two parallel sides of the vertical beam 100; a column 300 passes through the channel formed by the first through holes 2012 and the second through holes 101; both ends of the column 300 are machined with... A threaded blind hole 304 is provided, and a stud 302 is threadedly connected to the threaded blind hole 304 between two adjacent stud rods 300. A rooting plate 301 with a rectangular cross-section is inserted into the through hole 202. Both ends of the rooting plate 301 are provided with end holes 3012, and the stud 302 passes through the end holes 3012. A second nut 303 is provided on both sides of the rooting plate 301 along the length direction of the stud 302, and the second nut 303 is threadedly connected to the stud 302.

[0035] Multiple columns 300 transversely penetrate the vertical beam 100 and the end seat 201 of the horizontal beam 200, forming a stable transverse load-bearing support structure at the connection point of the horizontal and vertical beams; adjacent columns 300 are connected by studs 302, integrating the dispersed columns 300 into a unified load-bearing frame; in conjunction with the rooting plate 301 inserted into the through-hole 202 of the horizontal beam 200, it is locked and fixed to the stud 302 by the second nut 303, so that the rooting plate 301, stud 302 and column 300 form a tightly linked load-bearing system. This method can effectively distribute various loads, such as vertical pressure and horizontal shear force, borne by the beam 200 from the originally highly stress-concentrated connection between the beam and the vertical beam to the entire force-bearing system composed of the column 300, stud 302, and rooting plate 301. This ensures that the load is evenly distributed across the entire structure of the beam 200 and the components of the connection, avoiding the single concentration of force at the connection node of the beam and the vertical beam. This fundamentally eliminates the hidden danger of stress concentration at the connection, and improves the shear and compressive strength and overall stability of the steel beam connection structure.

[0036] Meanwhile, the threaded blind hole 304 at the end of the stud 302 and the column rod 300 is an adjustable threaded connection, which can flexibly adjust the length of the stud 302 screwed into the threaded blind hole 304 to adapt to different column rod 300 spacing requirements. During construction, the number of columns 300 used can be flexibly selected according to the actual length of the crossbeam 200, and the processing spacing of the through-hole 202 on the crossbeam 200 can also be flexibly adjusted accordingly. There is no need to customize exclusive specifications of column rods 300, studs 302 and other accessories, so that the load-bearing structure can be adapted to the construction scenarios of hot-rolled metal steel beams of different sizes and different load-bearing requirements, expanding the scope of application of the structure and improving the flexibility and versatility in actual construction.

[0037] Two semi-circular sleeves 600 are fitted onto the structure formed by multiple columns 300 to detect whether the columns 300 are bent. The cross-section of the semi-circular sleeves 600 is "C"-shaped, and there is a gap between the two semi-circular sleeves 600. A connecting plate 601 is installed on the lower part of the outer surface of each of the two semi-circular sleeves 600. A rectangular opening 6011 is opened on one side of the connecting plate 601. The end of the connecting plate 601 away from the semi-circular sleeves 600 contacts the bottom of the inner side of the crossbeam 200. The design of the rectangular opening 6011 reduces the production of the connecting plate 601. Material usage; Each of the two connecting plates 601 has a support lug 6012 installed at one end close to each other, and each of the two support lugs 6012 has a horizontal hole 6013 on the opposite side. A screw 602 is inserted into the channel formed by the two horizontal holes 6013. A third nut 6021 is provided on both sides of the support lug 6012 along the length of the screw 602. The third nut 6021 is threadedly connected to the screw 602. Both ends of the rooting plate 301 are machined with two notches 3011 for the semi-circular sleeve 600 to pass over the rooting plate 301.

[0038] Two semicircular sleeves 600 cooperate with each other and fit snugly on the outside of the load-bearing structure composed of multiple columns 300 to form a detection component for the deformation of the columns 300; the rooting plate 301 has matching notches 3011 pre-processed at both ends, allowing the semicircular sleeves 600 to easily pass over the rooting plate 301 and slide freely on the columns 300 without obstruction; the staff can push the semicircular sleeves 600 to move along the columns 300 to realize the full-process detection of the columns 300. When the crossbeam 200 bends and deforms under heavy load, the load-bearing structure composed of multiple linked columns 300 will also bend synchronously. The semi-circular sleeve 600, which was originally in contact with the column 300, will become stuck due to the deformation of the column 300 and will no longer be able to slide smoothly along the column 300. Workers can quickly judge the deformation of the column 300 through this intuitive stuck phenomenon, so as to realize the timely monitoring of the stress potential of the steel beam structure, so as to detect and deal with the potential problems early and prevent small deformation problems from gradually developing into serious failures such as steel beam cracking and structural instability.

[0039] Adjusting the spacing between the two semicircular sleeves 600 according to actual testing needs will change the relative position of the screw 602 and the connecting plate 601. After adjustment, the screw 602 is locked using the third nuts 6021 on both sides of the lug 6012, thus fixing the relative position of the screw 602 and the connecting plate 601 and achieving the positioning and fixation of the spacing between the semicircular sleeves 600. When the spacing between the two semicircular sleeves 600 is increased, it becomes more sensitive to minute deformations of the column 300, accurately capturing slight bending deformations of the crossbeam 200. This effectively improves the detection accuracy of bending deformation of the crossbeam 200, meeting the full-stage testing needs of steel beam structures from slight deformation to significant deformation under different load-bearing scenarios, further ensuring the operational stability of the steel beam structure.

[0040] A vertically arranged handle rod 500 is provided between the two lugs 6012. A threaded sleeve 501 is threadedly connected to the upper end of the handle rod 500. A connecting part 502 is fixedly connected to the upper end of the threaded sleeve 501. A twisted part 5021 is installed at one end of the connecting part 502. An ear plate part 5022 is installed at the end of the twisted part 5021 away from the connecting part 502. The ear plate part 5022 and the twisted part 5021 are integrally formed. The connecting part 502 and the ear plate part 5022 are arranged perpendicular to each other. A through hole 5023 is opened on one side of the ear plate part 5022. The ear plate part 5022 is located between the two lugs 6012. A fourth nut 503 is provided on both sides of the through hole 5023 along the length direction of the screw 602. The fourth nut 503 is threadedly connected to the screw 602.

[0041] By locking the fourth nut 503, the relative position of the ear plate 5022 and the screw 602 is kept constant, thereby ensuring the relative position of the connecting part 502 and the semi-circular sleeve 600 remains stable. The handle rod 500 of appropriate length is screwed into the threaded sleeve 501, which completes the quick assembly of the handle rod 500 and the connecting part 502. The operator does not need to climb to operate; he can simply stand on the ground, hold the handle rod 500, and push the semi-circular sleeve 600 along the column rod 300 to complete the inspection, which greatly improves the convenience and safety of the operation. After the inspection is completed, the handle rod 500 is unscrewed from the threaded sleeve 501, which allows the handle rod 500 and the connecting part 502 to be quickly separated, making storage and subsequent use more flexible.

[0042] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A load-bearing hot-rolled metal steel beam structure, characterized in that, The system includes a vertical beam (100), on which two parallel sides are connected to a horizontal beam (200) by fasteners formed by multiple sets of screws (400) and a first nut (401). The cross-sections of the horizontal beam (200) and the vertical beam (100) are both "I" shaped. Multiple through holes (202) are equidistantly opened on one side of the horizontal beam (200). Multiple columns (300) are provided on both sides of the horizontal beam (200), and one column (300) passes through the vertical beam (100). Both ends of the column (300) are machined with threaded blind holes (304). The threaded blind holes (304) of two adjacent columns (300) are threaded with studs (302). A rooting plate (301) is inserted into the through hole (202). The stud (302) passes through the rooting plate (301). The rooting plate (301) is provided with a second nut (303) on both sides along the length direction of the stud (302). The second nut (303) is threadedly connected to the stud (302).

2. The load-bearing hot-rolled metal steel beam structure according to claim 1, characterized in that: Both ends of the crossbeam (200) are welded with end seats (201). One side of the end seat (201) is provided with two rows of first small holes. The two parallel sides of the vertical beam (100) are provided with two rows of second small holes. The first small holes and the second small holes are aligned. One end of the screw (400) passes through the first small hole and the second small hole in sequence and is threaded with a first nut (401).

3. The load-bearing hot-rolled metal steel beam structure according to claim 2, characterized in that: The end seat (201) has two first through holes (2012) on the side facing the vertical beam (100). The vertical beam (100) has two second through holes (101) on each of its two parallel sides, which are aligned with the first through holes (2012). The column rod (300) passes through the channel formed by the first through holes (2012) and the second through holes (101).

4. A load-bearing hot-rolled metal steel beam structure according to claim 3, characterized in that: Two reinforcing ribs (2011) are welded to the side of the end seat (201) away from the vertical beam (100), and the end of the reinforcing rib (2011) away from the end seat (201) is welded and fixed to the cross beam (200).

5. A load-bearing hot-rolled metal steel beam structure according to claim 1, characterized in that: Two semicircular sleeves (600) for detecting whether the column (300) is bent are fitted on the structure formed by the multiple column rods (300). The cross-section of the semicircular sleeve (600) is "C" shaped. There is a gap between the two semicircular sleeves (600). The two semicircular sleeves (600) are connected by a connector. Both ends of the rooting plate (301) are processed with two notches (3011) for the semicircular sleeves (600) to pass over the rooting plate (301).

6. A load-bearing hot-rolled metal steel beam structure according to claim 5, characterized in that: The connector includes a connecting plate (601). The connecting plate (601) is installed on the lower part of the outer surface of the two semi-circular sleeves (600). The two connecting plates (601) are each equipped with a lug (6012) at their adjacent ends. The two lugs (6012) are each provided with a transverse hole (6013) on their opposite surfaces. A screw (602) is inserted into the channel formed by the two transverse holes (6013). The lugs (6012) are provided with a third nut (6021) on both sides along the length of the screw (602). The third nut (6021) is threadedly connected to the screw (602).

7. A load-bearing hot-rolled metal steel beam structure according to claim 6, characterized in that: A vertically arranged handle rod (500) is provided between the two support ears (6012). A threaded sleeve (501) is threadedly connected to the upper end of the handle rod (500). A connecting part (502) is fixedly connected to the upper end of the threaded sleeve (501). A twisted part (5021) is installed at one end of the connecting part (502). An ear plate part (5022) is installed at the end of the twisted part (5021) away from the connecting part (502). A through hole (5023) is opened on one side of the ear plate part (5022). The ear plate part (5022) is located between the two support ears (6012). A fourth nut (503) is provided on both sides of the through hole (5023) along the length direction of the screw (602). The fourth nut (503) is threadedly connected to the screw (602).

8. A load-bearing hot-rolled metal steel beam structure according to claim 7, characterized in that: The ear plate portion (5022) and the twisted portion (5021) are integrally formed, the connecting portion (502) and the twisted portion (5021) are integrally formed, and the connecting portion (502) and the ear plate portion (5022) are arranged perpendicular to each other.

9. A load-bearing hot-rolled metal steel beam structure according to claim 6, characterized in that: A rectangular opening (6011) is provided on one side of the connecting plate (601), and the end of the connecting plate (601) away from the semi-circular sleeve (600) is in contact with the bottom of the inner side of the crossbeam (200).

10. A load-bearing hot-rolled metal steel beam structure according to claim 1, characterized in that: Both ends of the rooting board (301) are provided with end holes (3012), the stud (302) passes through the end holes (3012), the cross-section of the rooting board (301) is rectangular, and the cross-section of the through hole (202) is rectangular.

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