H-shaped steel plate type connecting structure and modular H-shaped steel support frame node

Abstract

The present application relates to H-shaped steel support component technical field, especially to a kind of H-shaped steel plate type connecting structure and modular H-shaped steel support frame node, comprising: L-shaped fixing piece;Two side webs, mutually parallel and with the inner surface of first fixed plate and second fixed plate are all vertically connected;Two installers, with rectangular accommodating cavity, two installers are vertically fixed between two side webs;Two L-shaped connecting pieces, oppositely arranged between two installers.The present application is provided with L-shaped fixing piece, side web and installer, in the form of "space enclosing and internal reinforcement", the stable load-bearing foundation of H-shaped steel plate type connecting structure is formed, and then the rectangular accommodating cavity of installer provides reliable installation basis for the movable insertion of L-shaped connecting piece, so as to provide space orientation and structure basis for H-shaped steel assembly type connection.The support frame node disclosed in the present application significantly improves the lateral capacity, assembly capacity and construction efficiency of the modular steel frame structure.

Description

Technical Field

[0001] This invention relates to the field of H-beam support components, and more particularly to an H-beam plate connection structure and a modular H-beam support frame node. Background Technology

[0002] Against the backdrop of vigorously advocating green building and the dual-carbon strategy, traditional welded steel structure support frames have significant disadvantages. For example, during welding construction, localized heating and cooling can cause deformation of structural components, and stress concentration is prone to occur at weld joints, potentially leading to strength and stability issues; high-altitude welding and other work need to be carried out on-site, which is cumbersome, poses safety hazards, and makes it difficult to control construction quality; a large number of workers are required for on-site operations during construction, greatly increasing time and labor costs; large-scale on-site welding generates a large amount of pollutants, causing adverse environmental impacts; in addition, welding heat input and other processes also waste resources, which is inconsistent with the concept of green and sustainable development.

[0003] Based on the above problems, many scholars have begun to study modular steel structures in order to achieve full prefabrication and assembly of building structures. However, this research still has some limitations. For example, modular steel structures are mostly pure frame structures or wall panel structures, which have limited lateral force resistance; modular steel structures inevitably lead to double beams and double columns, and the connection problems between modules directly affect the overall load-bearing capacity and disaster resistance of the structure. Traditionally, the connection between modules is mostly achieved by adding a single pad, and the safety of this approach needs to be verified. Summary of the Invention

[0004] To address at least one of the aforementioned technical problems, this invention proposes an H-shaped steel plate connection structure and a modular H-shaped steel support frame node to solve the problems of poor lateral force resistance and load-bearing capacity in existing modular support frames.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The first aspect of this invention provides an H-shaped steel plate connection structure, comprising:

[0007] The L-shaped fastener includes a first fixing plate and a second fixing plate that are perpendicular to each other.

[0008] The two side plates are parallel to each other and perpendicular to the inner surfaces of the first fixing plate and the second fixing plate.

[0009] Two mounting components, each having a rectangular receiving cavity, are fixed perpendicularly and spaced apart between the two side webs, and the two rectangular receiving cavities are on the same plane;

[0010] Two L-shaped connectors are disposed opposite to each other between the two mounting components. Each L-shaped connector includes a first connecting plate movably inserted into a rectangular accommodating cavity and a second connecting plate perpendicular to the first connecting plate. The first web of the H-beam is movably fixed between the two second connecting plates. The end face of the first flange of the H-beam is in contact with the upper surface of the two mounting components.

[0011] Preferably, the first fixing plate and the second fixing plate have first mounting holes at both ends and on both sides of the two side plates.

[0012] Preferably, the cross-section of the mounting component is rectangular.

[0013] Preferably, the side web plate is provided with a second mounting hole at the position corresponding to the first flange of the H-beam, and the second connecting plate is provided with a third mounting hole at the position corresponding to the first web plate.

[0014] Preferably, the distance between the two side webs is equal to the distance between the outer sides of the two first flanges, and the distance between the two mounting members is greater than the sum of the thicknesses of the two second connecting plates and the thickness of the first web of the H-beam.

[0015] Preferably, the width of the first connecting plate is less than the distance between the two side webs minus the sum of the thicknesses of the two first flanges.

[0016] A second aspect of the present invention provides a modular H-beam steel support frame node, comprising a frame unit and an H-beam steel plate connection structure as described in the first aspect, disposed on the frame unit;

[0017] The frame unit includes interconnected longitudinal beams and transverse beams vertically connected between the longitudinal beams, and the longitudinal beams and transverse beams are assembled and connected by the H-shaped steel plate connection structure.

[0018] Preferably, the longitudinal beam is a double H-shaped cross section column, the transverse beam is an H-shaped cross section beam, and the end of the H-shaped cross section beam is connected to the second flange of the double H-shaped cross section column.

[0019] Preferably, the second flanges of the two adjacent double H-shaped cross-section columns are assembled with the first fixing plate, and the third flanges of the two H-shaped cross-section beams are assembled with the second fixing plate.

[0020] Preferably, the ends of the double H-shaped cross-section columns are connected by a third connecting plate, and the four corners of the third connecting plate are provided with fourth mounting holes; two vertically connected double H-shaped cross-section columns are connected by a fourth connecting plate, and the two ends of the fourth connecting plate are provided with fifth mounting holes at positions corresponding to the second flanges of the double H-shaped cross-section columns; two vertically adjacent H-shaped cross-section beams are connected to each other by sixth mounting holes provided on both sides of the ends of the third flanges.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. This invention, by setting up L-shaped fasteners, side webs, and mounting components, forms a stable load-bearing foundation for the H-shaped steel plate connection structure in the form of "spatial enclosure and internal reinforcement." Furthermore, the rectangular accommodating cavity of the mounting component provides a reliable installation foundation for the movable insertion of the L-shaped connector, thereby providing spatial guidance and structural foundation for the H-shaped steel prefabricated connection.

[0023] 2. The support frame node provided by the present invention forms a three-dimensional support system through "double H-shaped columns + H-shaped beams + diagonal connection structure". By utilizing the bidirectional stiffness of the double H-shaped columns, the horizontal force transmission of the H-shaped beams, and the "load decomposition" capability of the diagonal connection structure, the horizontal lateral forces (wind, earthquake, etc.) are converted into axial forces of the components, thereby improving lateral stability. At the same time, the modular steel frame structure effectively improves assembly capability and construction efficiency. Attached Figure Description

[0024] Figure 1 This is a structural diagram of an H-shaped steel plate connection structure.

[0025] Figure 2 This is a side view of an H-shaped steel plate connection structure;

[0026] Figure 3 This is a perspective view of an H-shaped steel plate connection structure (omitting the L-shaped connector);

[0027] Figure 4 This is an assembly drawing of the mounting component and the L-shaped connector in this invention;

[0028] Figure 5 An exploded view of an H-shaped steel plate connection structure;

[0029] Figure 6 This is an assembly diagram of the plate connection structure and H-beams in this invention;

[0030] Figure 7 This is a side view of the plate connection structure and H-beam assembly in this invention;

[0031] Figure 8 This is a perspective view of the double H-shaped cross-section column in this invention;

[0032] Figure 9 This is a side view of the double H-shaped cross-section column in this invention;

[0033] Figure 10 This is a top view of the double H-shaped cross-section column in this invention;

[0034] Figure 11 This is a schematic diagram of the frame unit in this invention;

[0035] Figure 12 This is a schematic diagram of the modular H-beam steel support frame node structure in this invention.

[0036] In the diagram: 10, L-shaped fastener; 101, first fixing plate; 102, second fixing plate; 103, first mounting hole; 20, side web plate; 201, second mounting hole; 30, mounting component; 301, rectangular accommodator; 40, L-shaped connector; 401, first connecting plate; 402, second connecting plate; 4021, third mounting hole; 50, H-beam; 501, first web plate; 502, first flange; 60, frame unit; 601, double H-shaped cross section column; 6011, second flange; 602, H-shaped section beam; 6021, third flange; 70, third connecting plate; 701, fourth mounting hole; 80, fourth connecting plate; 801, fifth mounting hole. Detailed Implementation

[0037] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments of the present invention.

[0038] Example 1

[0039] Please refer to Figures 1-7 As shown, an H-shaped steel plate connection structure includes:

[0040] The L-shaped fastener 10 includes a first fixing plate 101 and a second fixing plate 102 that are perpendicular to each other.

[0041] The two side plates 20 are parallel to each other and are perpendicularly connected to the inner surfaces of the first fixing plate 101 and the second fixing plate 102.

[0042] Two mounting pieces 30 have rectangular accommodating cavities 301. The two mounting pieces 30 are fixed vertically between two side web plates 20 at intervals, and the two rectangular accommodating cavities 301 are on the same plane.

[0043] Two L-shaped connectors 40 are disposed opposite to each other between two mounting members 30. Each L-shaped connector 40 includes a first connecting plate 401 that is movably inserted into a rectangular cavity 301 and a second connecting plate 402 that is perpendicular to the first connecting plate 401. The first web 501 of the H-beam 50 is movably fixed between the two second connecting plates 402. The end face of the first flange 502 of the H-beam 50 is in contact with the upper surface of the two mounting members 30.

[0044] In this embodiment, by setting up L-shaped fasteners 10, side web plates 20 and mounting parts 30, a stable load-bearing foundation for the H-shaped steel plate connection structure is formed in the form of "spatial enclosure and internal reinforcement". Furthermore, the rectangular accommodating cavity 301 of the mounting parts 30 provides a reliable installation foundation for the movable insertion of the L-shaped connectors 40, thereby providing spatial guidance and structural foundation for the assembled connection of H-shaped steel 50.

[0045] Specifically, the L-shaped fastener 10 has a rigid structure with corner support and high planar stiffness, and can be regarded as the "reference rigid body" of the entire connection structure constraint system. The side web plate 20 has lateral constraint force and uses its cross-sectional moment of inertia to resist lateral bending deformation. The two together form a basic spatial frame with a "U-shaped" rigid boundary. The L-shaped fastener 10 and the side web plate 20 can be fixed together by welding.

[0046] The mounting member 30, located between the side web plates 20, not only provides installation space for the L-shaped connector 40, but also acts as a transverse rib, connecting the two side web plates 20 and enhancing the lateral stiffness and overall stability of the structure. Similarly, the mounting member 30 and the side web plates 20 can be fixed together by welding.

[0047] The clamping space formed between the two L-shaped connectors 40 arranged in opposite directions limits the insertion angle of the first web 501 of the H-beam 50. Together with the side web 20, it limits the insertion angle of the first flange 502 of the H-beam 50. The two together form a constraint on the H-beam 50 and also position the H-beam 50, so as to avoid large-scale displacement and misalignment during installation.

[0048] Furthermore, from the perspective of planar instability (referring to the loss of stability of a structure or component within its primary load-bearing plane), the H-beam 50 has an H-shaped cross-section, and the instability of the supporting member occurs around its weak axis, which is along the web direction (perpendicular to the flange plane). Traditionally, the ends of H-beam 50 are often constrained by a single plate, and the traditional placement of H-beam 50 involves the first web 501 of the H-beam 50 being parallel to the plane of the constraining single plate. Since the rotational constraint force of the single plate is limited, the single-plate constraint is similar to a hinge. Therefore, out-of-plane instability occurs in traditional supported frame structures. Because out-of-plane instability breaks through the pre-set frame constraint system, the deformation direction is difficult to predict, and it can easily lead to the overall structure "tilting" or "collapse," posing a serious hazard.

[0049] In this embodiment, the side web plate 20 of the plate-type connection structure is parallel to the first flange 502 of the H-beam 50. Double-plate restraint at the ends of the H-beam 50 ensures that the instability of the supporting frame structure is in-plane instability. Simultaneously, it increases the rotational restraint stiffness of the H-beam 50, improving the instability bearing capacity of the supporting structure. Compared to out-of-plane instability, in-plane instability involves component deformation within a controllable plane, which can be effectively prevented through conventional construction methods (such as lateral bracing). Furthermore, it allows for rapid reinforcement and repair after a disaster, while also avoiding secondary damage such as damage to non-structural components caused by excessive out-of-plane deformation.

[0050] From the load path analysis, the load (flange component + web component) on the obliquely installed H-beam 50 is transferred to the constrained structure through different paths:

[0051] The flange force is directly transmitted to the side web 20 via the first flange 502 of the H-beam 50. The side web 20 then diffuses the flange force, transferring it to the L-shaped fastener 10. The horizontal force of the flange force is transmitted to the beam via the first fixing plate 101. The shear strength of the bolt group between the first fixing plate 101 and the beam is utilized to bear the load, preventing local buckling of the side web 20 and beam flanges caused by load concentration at a single point. The vertical force of the flange force is directly transmitted to the column via the first fixing plate 102. This process involves force diffusion, preventing excessive local stress in the column caused by stress concentration.

[0052] The web component force is transmitted to the first connecting plate 401 via the second connecting plate 402 (clamping the H-shaped steel web) of the L-shaped connector 40, and then to the mounting member 30 via the accommodating cavity of the mounting member 30. Finally, it is transmitted to the L-shaped fixing member 10 via the side web 20. Similarly, the vertical and horizontal effects of the web component force are also transmitted to the beam and column via the first fixing plate 101 and the second fixing plate 102, thus avoiding stress concentration at the joint.

[0053] In this embodiment, the "distributed transfer" design of the connection structure decomposes the load to components with different stiffness directions, avoiding excessive stiffness in a single direction and reducing the causes of instability from the root.

[0054] In summary, this example utilizes a hierarchical stiffness design involving L-shaped fasteners 10, side webs 20, mounting components 30, and L-shaped connectors 40 to construct a system of "rigid foundation + localized reinforcement constraints." This system not only prevents localized stress concentration through load distribution but also limits the possibility of out-of-plane instability deformation through multi-directional constraints. Furthermore, it precisely adapts to the stress characteristics of the obliquely installed H-beams 50, effectively reducing the risk of frame structure instability and ensuring the long-term reliability of the connection structure through both stiffness matching and deformation control.

[0055] Please refer to Figures 1-3 As shown, in order to facilitate the connection of the connection structure with other structural components, in this embodiment, the first fixing plate 101 and the second fixing plate 102 are provided with first mounting holes 103 at both ends and on both sides of the two side web plates 20.

[0056] Specifically, the two side plates 20 divide the space of the L-shaped fastener 10 into an accommodating space formed by the inner walls of the two side plates 20 and the L-shaped fastener 10, and an installation section of the L-shaped fastener 10 located on both sides of the two side plates 20. In this embodiment, the first mounting hole 103 is a circular bolt hole, and is spaced along the "L"-shaped path of the L-shaped fastener 10 on the first and second fasteners.

[0057] Please refer to Figure 2 and Figure 4 As shown, for ease of fitting and installation, the cross-section of the mounting member 30 in this embodiment is rectangular. Specifically, the rectangular mounting member 30 is easy to manufacture, and the rectangular cross-section can provide a relatively regular accommodating cavity, which facilitates the insertion of the first connecting plate 401 of the L-shaped connector 40. At the same time, it can also better contact the end face of the flange of the H-beam 50, uniformly transfer the load, and ensure the stress performance of the connection structure.

[0058] Meanwhile, in this embodiment, a second mounting hole 201 is provided at the position corresponding to the first flange 502 of the side web plate 20 and the H-beam 50, and a third mounting hole 4021 is provided at the position corresponding to the first web plate 501 of the second connecting plate 402.

[0059] Specifically, in this embodiment, the second mounting hole 201 is provided along the width direction of the first flange 502. Since the angle of oblique installation of the H-beam 50 is different, the corresponding second mounting hole 201 on the side web plate 20 should also correspond to the second mounting hole 201 provided on the first flange 502.

[0060] The third mounting hole 4021 is set in the width direction of the first web 501, and the third mounting hole 4021 set in the same way on the connecting plate corresponds to it.

[0061] It should be noted that, in this embodiment, the first mounting hole 103, the second mounting hole 201, and the third mounting hole 4021 can all be set as circular bolt holes and fixed with high-strength bolts.

[0062] Please refer to Figure 2 and Figure 4 As shown, to improve the applicability of the connection structure in this embodiment, the distance between the two side webs 20 is equal to the distance between the outer sides of the two first flanges 502, and the distance between the two mounting members 30 is greater than the sum of the thickness of the two second connecting plates 402 and the thickness of the first web 501 of the H-beam 50. It is understood that when the H-beam 50 is inserted between the second connecting plates 402, there is a millimeter-level installation gap between the second connecting plates 402 and the first web 501. This not only accommodates the assembly of H-beams 50 with different web thicknesses but also accommodates dimensional errors in the first web 501 of the H-beam 50 caused by production or other factors.

[0063] Similarly, the width of the first connecting plate 401 is less than the distance between the two side webs 20 minus the sum of the thicknesses of the two first flanges 502. Thus, when the H-beam 50 is inserted between the second connecting plates 402, there is also a millimeter-level installation gap between the second connecting plate 402 and the second flange 6011, which allows for the assembly of H-beams 50 with different flange thicknesses, and also accommodates dimensional errors in the first flange 502 of the H-beam 50 caused by production or other factors.

[0064] Example 2

[0065] Please refer to Figures 8-12 As shown, a modular H-beam 50 supporting frame node includes frame units 60 and H-beam plate connection structures, as in Embodiment 1, disposed on the frame units 60. The frame unit 60 includes interconnected longitudinal beams and transverse beams vertically connected between the longitudinal beams, with the longitudinal beams and transverse beams assembled together via the H-beam plate connection structures.

[0066] Specifically, in this embodiment, the longitudinal beam is a double H-shaped cross-section column 601, and the transverse beam is an H-shaped cross-section beam 602. The end of the H-shaped cross-section beam 602 is connected to the second flange 6011 of the double H-shaped cross-section column 601. Either the second flange 6011 of the double H-shaped cross-section column 601 can be fixed to the end of the H-shaped cross-section beam 602 by welding.

[0067] It should be noted that the double H-shaped cross section column 601 is usually formed by welding or bolting two H-shaped steels 50 perpendicularly to each other to form a "+" or "T" shaped composite section. In this embodiment, the "+" composite section is formed by welding.

[0068] In this embodiment, a double H-shaped cross-section column 601 is used to bear the loads transmitted from H-shaped cross-section beams 602 in different directions (such as beams with different spans and loads). The stiffness and bearing capacity of the double H-shaped cross-section column 601 in both directions are relatively balanced, which can effectively disperse the vertical and horizontal loads transmitted from the beams in each direction and avoid excessive force in one direction, which could lead to column deformation or instability. This can effectively ensure the stability of the modular frame under various load combinations, such as when dealing with unbalanced loads transmitted from different module units, and can more rationally distribute internal forces.

[0069] In addition, the double H-shaped cross section column 601 has higher lateral stiffness than the single H-shaped steel column 50, which can enhance the lateral resistance of the modular frame, reduce the lateral displacement of the overall structure under horizontal force, and ensure the functionality and safety of the modular building. Especially in multi-story and high-rise modular steel structures, it can effectively improve the lateral stability of the structure.

[0070] In terms of space compactness, the 601 double H-shaped cross section column has a relatively regular cross section and reasonable space occupation. In modular steel structures, it can adapt to the spatial layout requirements of different module units. It will not encroach on the building's usable space due to the excessively large column cross section. It is convenient to arrange multiple module units in a limited space and improve space utilization. For example, in modular office buildings and residences, it can make the interior space layout more flexible.

[0071] Please refer to Figures 8-10 As shown, in this embodiment, the ends of the double H-shaped cross-section columns 601 are connected by a third connecting plate 70, and the four corners of the third connecting plate 70 are provided with fourth mounting holes 701; the two vertically connected double H-shaped cross-section columns 601 are connected by a fourth connecting plate 80, and the two ends of the fourth connecting plate 80 are provided with fifth mounting holes 801 at positions corresponding to the second flange 6011 of the double H-shaped cross-section columns 601; the two vertically adjacent H-shaped cross-section beams 602 are connected to each other by sixth mounting holes provided on both sides of the end of the third flange 6021.

[0072] It is understandable that the prefabricated installation of the double H-shaped cross section column 601 is achieved through the third connecting plate 70 and the fourth connecting plate 80, which facilitates installation and disassembly, reduces the number of procedures, and greatly improves the assembly efficiency of the modular H-beam 50 support frame node. At the same time, based on the advantages of being detachable and reusable, this support frame can be used for rapid mobile rescue operations in disaster prevention projects.

[0073] It should be noted that the third connecting plate 70 is a square plate and the fourth connecting plate 80 is a rectangular plate; the fifth mounting hole 801 and the sixth mounting hole can both be round bolt holes and fixed with high-strength bolts.

[0074] Referring to the figure, in this embodiment, the second flange 6011 of two adjacent double H-shaped cross-section columns 601 is assembled with the first fixing plate 101, and the third flange 6021 of two H-shaped cross-section beams 602 is assembled with the second fixing plate 102.

[0075] It should be noted that the connection structure in this embodiment can be set at the upper and / or lower part of the end of the H-section beam 602, thereby forming a connection node between the longitudinal beam and the transverse beam. Specifically, in this embodiment, the flanges of the vertically adjacent double H-section steel 50 cross-section columns and the flanges of the adjacent H-section beam 602 that are vertically and horizontally connected to the double H-section steel 50 cross-section columns can be connected by the L-shaped fastener 10 in the connection structure.

[0076] It is understood that the support frame node in this embodiment forms a three-dimensional support system through "double H-shaped columns + H-shaped beams + diagonal connection structure". By utilizing the bidirectional stiffness of the double H-shaped columns, the horizontal force transmission of the H-shaped beams, and the "load decomposition" capability of the diagonal connection structure, the horizontal lateral forces (wind, earthquake, etc.) are converted into axial forces of the components, thereby improving lateral stability.

[0077] Specifically, the double H-shaped cross-section column 601 has a large moment of inertia in two orthogonal directions (such as the X and Y axes), providing bidirectional lateral stiffness. The H-shaped beam connects to the column flanges, forming a horizontal lateral-resisting "frame layer." The diagonal connection structure (including H-shaped steel 50) spatially connects the columns and beams, enabling the bidirectional column stiffness and the horizontal stiffness of the beams to work together to construct a three-dimensional lateral-resisting system of "column-beam-diagonal brace." Compared with the traditional planar frame, the lateral force resistance is upgraded from "two-dimensional" to "three-dimensional," effectively improving the structure's lateral resistance capacity.

[0078] The oblique connection structure in this embodiment connects the beams and columns in adjacent frame modules through L-shaped fasteners. Specifically, the third flanges 6021 of two H-section beams 602 are connected by L-shaped fasteners 101, and the second flanges 6011 of two double H-section columns 601 are connected by L-shaped fasteners 102. Compared with the traditional connection between adjacent frame modules, this approach makes the integrity of the two adjacent frame modules stronger, realizing a tight connection between adjacent modules and coordinated stress and deformation.

[0079] From the perspective of decomposing horizontal loads through an oblique force transmission path, when horizontal lateral forces (such as seismic forces and wind loads) are applied, the obliquely connected H-beam 50 can decompose the lateral forces into axial tensile / compression forces: lateral force → H-beam → oblique H-beam 50 → double H-beam column flange → column body → foundation.

[0080] We know that axial force (tension / compression) is the type of load that steel is best able to withstand (compared to bending moment and shear force). It can fully utilize the strength of steel, prevent brittle failure of components due to complex stress (such as bending and shear of beams and compression and bending of columns), and improve the efficiency of lateral force resistance.

[0081] Meanwhile, the connecting structure achieves "rigid joints" through bolted assembly connections of the flanges and webs. Specifically, the columns, beams, and diagonal H-beams (50mm) deform collaboratively at the joints without relative slippage, ensuring that lateral displacement under horizontal lateral forces is controlled by the combined deformation of the overall frame and the joints. The rigid joints have high rotational stiffness, which significantly reduces inter-story lateral displacement of the frame and ensures the functionality of the modular steel structure under strong lateral forces.

[0082] The supporting frame nodes in this implementation achieve efficient lateral force resistance through "diagonal force transmission + rigid connection constraint" with a compact space occupation (requiring only column and beam flange connections). Compared with traditional "external diagonal bracing", this node is hidden at the column-beam connection, does not occupy additional building space, and is suitable for the high space utilization requirements of modular steel structures; at the same time, the diagonal H-beam 50 works in conjunction with the column and beam flanges, avoiding the need for separate large lateral force resisting components, optimizing the structural self-weight, and indirectly reducing foundation costs.

[0083] In this embodiment, the double H-shaped cross-section column 601, the H-shaped cross-section beam 602, and the connection structure are all modularly assembled, which improves construction efficiency. Based on the prefabricated connection, the support frame nodes can be reused. At the same time, the overall strength of the frame can be flexibly adjusted by the number of nodes (such as densifying nodes in high-intensity seismic zones).

[0084] The supporting frame node provided by this invention has the characteristics of "three-dimensional lateral resistance coordination, efficient oblique force transmission, and flexible modular adaptation". By combining the node rigid connection with the oblique component, the horizontal lateral force is transformed into the axial force, giving full play to the performance of steel. At the same time, it adapts to the efficient construction requirements of modular steel structure, which is a "double solution" of mechanical performance and construction logic.

[0085] The above description is a specific implementation of the embodiments of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. An H-shaped steel plate connection structure, characterized in that, include: The L-shaped fastener (10) includes a first fixing plate (101) and a second fixing plate (102) that are perpendicular to each other; Two side plates (20) are parallel to each other and are perpendicularly connected to the inner surfaces of the first fixing plate (101) and the second fixing plate (102); Two mounting members (30) have rectangular accommodating (301) cavities. The two mounting members (30) are fixed perpendicularly between the two side web plates (20) at intervals. The two rectangular accommodating (301) cavities are on the same plane. Two L-shaped connectors (40) are disposed opposite to each other between the two mounting members (30). Each L-shaped connector (40) includes a first connecting plate (401) movably inserted into a rectangular accommodating cavity (301) and a second connecting plate (402) perpendicular to the first connecting plate (401). The first web (501) of the H-beam (50) is movably fixed between the two second connecting plates (402). The end face of the first flange (502) of the H-beam (50) is in contact with the upper surface of the two mounting members (30).

2. The H-shaped steel plate connection structure according to claim 1, characterized in that, First mounting holes (103) are provided at both ends of the first fixing plate (101) and the second fixing plate (102) and on both sides of the two side webs (20).

3. The H-shaped steel plate connection structure according to claim 1, characterized in that, The cross-section of the mounting component (30) is rectangular.

4. The H-shaped steel plate connection structure according to claim 1, characterized in that, The side web plate (20) is provided with a second mounting hole (201) at the position corresponding to the first flange (502) of the H-beam (50), and the second connecting plate (402) is provided with a third mounting hole (4021) at the position corresponding to the first web plate (501).

5. The H-shaped steel plate connection structure according to claim 1, characterized in that, The distance between the two side webs (20) is equal to the distance between the outer sides of the two first flanges (502), and the distance between the two mounting members (30) is greater than the sum of the thickness of the two second connecting plates (402) and the thickness of the first web (501) of the H-beam (50).

6. The H-shaped steel plate connection structure according to claim 1, characterized in that, The width of the first connecting plate (401) is less than the distance between the two side plates (20) minus the sum of the thicknesses of the two first flanges (502).

7. A modular H-beam steel support frame node, characterized in that, Includes a frame unit (60) and an H-shaped steel plate connection structure as described in any one of claims 1-6 disposed on the frame unit (60); The frame unit (60) includes interconnected longitudinal beams and transverse beams vertically connected between the longitudinal beams, and the longitudinal beams and transverse beams are assembled and connected by the H-shaped steel plate connection structure.

8. The modular H-beam steel support frame node according to claim 7, characterized in that, The longitudinal beam is a double H-shaped cross section column (601), and the transverse beam is an H-shaped cross section beam (602). The end of the H-shaped cross section beam (602) is connected to the second flange (6011) of the double H-shaped cross section column (601).

9. The modular H-beam steel support frame node according to claim 8, characterized in that, The second flanges (6011) of the two adjacent double H-shaped cross-section columns (601) are assembled with the first fixing plate (101), and the third flanges (6021) of the two H-shaped cross-section beams (602) are assembled with the second fixing plate (102).

10. The modular H-beam support frame node according to claim 8, characterized in that, The ends of the double H-shaped cross section column (601) are connected by a third connecting plate (70), and the four corners of the third connecting plate (70) are provided with fourth mounting holes (701); two vertically connected double H-shaped cross section columns (601) are connected by a fourth connecting plate (80), and the two ends of the fourth connecting plate (80) are provided with fifth mounting holes (801) at positions corresponding to the second flange (6011) of the double H-shaped cross section column (601); two vertically adjacent H-shaped cross section beams (602) are connected to each other by sixth mounting holes provided on both sides of the end of the third flange (6021).

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