Modular steel-wood composite connection node construction

Abstract

This invention discloses a modular steel-wood composite connection node structure, including a first composite column, a second composite column, a U-shaped connection component, a composite beam structure, and locking components. The first composite column includes a first wooden column and a channel steel. The channel steel is connected to the first wooden column via a first mating groove. Two first wooden columns are fitted together, and a first gap exists between the two channel steels. The channel steel has a first extended end exposed at the end of the first wooden column, which is connected to the U-shaped connection component. The U-shaped connection component is connected to the composite beam structure. The second composite column includes a second wooden column and a shaped H-beam. Two second wooden columns are fitted together via the shaped H-beam. The shaped H-beam has a second extended end exposed at the end of the second wooden column, which is connected to the U-shaped connection component. The U-shaped connection component is connected to the composite beam structure, and the second extended end is inserted into the corresponding first gap. This invention has a high overall assembly degree and utilizes the organic combination of the steel-wood composite component and the steel component to achieve good mechanical properties.

Description

Technical Field

[0001] This invention relates to the field of modular steel-wood composite building structure technology, and in particular to a modular steel-wood composite connection node structure. Background Technology

[0002] Steel-wood composite structures, with their advantages of high construction efficiency, excellent quality, and environmental friendliness, have gradually become a focus of attention in the engineering and academic communities. Their significant characteristics include lightweight yet high strength, and the rational and effective utilization of the mechanical properties of steel and wood to improve the mechanical performance of steel-wood composite components, thereby enhancing the overall mechanical performance of the structure. Furthermore, their simple construction and rapid deployment make steel-wood composite buildings a crucial trend in the future development of green and composite building structures. In addition, modular structures, with their advantages of high construction efficiency, excellent quality, and environmental friendliness, have also gradually become a focus of attention in the engineering and academic communities. Their significant characteristic is that all interior decoration is completed in the factory for the modular units, and after the modules are connected on-site, they can be quickly delivered for use. This reduces significant environmental pollution during construction while improving construction efficiency, making modular structural buildings another important trend in the industrialization and green development of the construction industry in recent years.

[0003] The reliability of both steel-wood composite structures and the connections between modular units directly affects the overall performance of the structure. If problems arise at the joints, the structure will be unable to function. Furthermore, the connection design should be rational, easy to construct, and effectively utilize the mechanical properties of steel and wood. However, current research on steel-wood composite buildings mainly focuses on single components, such as steel-wood composite beams and columns, and often uses additional steel clamps or filler plates with bolts for connections. This undoubtedly increases the complexity of construction and causes the composite structure to lack a certain degree of integrity, leading to slippage between connected components and excessive local stress concentration. In addition, these structures are not easy to assemble and disassemble. Summary of the Invention

[0004] The technical problem to be solved by this invention is that the connection method of steel-wood composite beams and steel-wood composite columns in steel-wood composite buildings often uses additional steel clamps or steel filler plates and bolts, which makes the construction complex and the composite structure lacks a certain degree of integrity, resulting in easy slippage between the connecting components; in addition, the above structure is not easy to disassemble and assemble.

[0005] To solve the above-mentioned technical problems, the present invention provides a modular steel-wood composite connection node structure, including multiple first composite columns, multiple second composite columns, multiple U-shaped connection components, multiple composite beam structures, and multiple locking components;

[0006] The first composite column includes two first wooden columns and two channel steels. The first wooden columns have a first mating groove. The channel steels are connected to the corresponding first wooden columns through the first mating groove. The two first wooden columns are fitted together, and there is a first gap between the two channel steels. The channel steels have first extended ends exposed at both ends of the first wooden columns. The first extended ends are connected to the corresponding U-shaped connecting components. The U-shaped connecting components are connected to the corresponding composite beam structure through the locking member to form a first composite module unit node.

[0007] The second composite column includes two second wooden columns and a special-shaped H-beam. The second wooden columns have a second mating groove. The two second wooden columns are connected by the special-shaped H-beam. The special-shaped H-beam has a second extended end exposed at both ends of the second wooden column. The second extended end is connected to the corresponding U-shaped connecting assembly. The U-shaped connecting assembly is connected to the corresponding composite beam structure through the locking member to form a second composite module unit node. The second extended end is inserted into the corresponding first interval and is connected to the first composite module unit node through the locking member.

[0008] Furthermore, the channel steel includes a first web and first flanges disposed on opposite sides of the first web. The first flanges are installed in the corresponding first mating grooves. The first web has a plurality of first screw holes for connecting with the U-shaped connecting assembly, and the first flanges have a plurality of second screw holes for connecting with the U-shaped connecting assembly.

[0009] The shaped H-beam includes a second web and a second flange. The second web includes a connecting portion and an insert portion. Two second flanges are disposed opposite to each other on both sides of the second web to form an H-shaped cross-section. Two insert portions are disposed opposite to each other at both ends of the connecting portion. The second flanges are installed in corresponding second mating grooves. The second web has multiple third screw holes for connecting with the U-shaped connecting assembly. The second flange has multiple fourth screw holes for connecting with the U-shaped connecting assembly.

[0010] Furthermore, the cross-sectional shape of the first wooden column is rectangular, the two first mating grooves are spaced apart along the length direction of the first wooden column, and the first mating grooves penetrate the first wooden column along the height direction of the first wooden column. The depth of the side of the first mating groove away from the other first mating groove is twice the thickness of the first web plate, and the distance between the two first mating grooves is equal to the width of the first web plate.

[0011] The second wooden column has a rectangular cross-sectional shape. Two second mating grooves are spaced apart along the length of the second wooden column, and the second mating grooves penetrate the second wooden column along the height of the second wooden column. The depth of the side of the second mating groove away from the other second mating groove is twice the thickness of the second web plate, and the distance between the two second mating grooves is equal to the width of the second web plate.

[0012] Furthermore, the first interval is greater than or equal to the thickness of the second web.

[0013] Furthermore, the width of the first web is 0.5-0.7 times the length of the first wooden post, and the width of the first flange is 0.4-0.6 times the width of the first web.

[0014] The width of the second web is 0.5-0.7 times the length of the second wooden post, and the width of the second flange is 0.4-0.6 times the width of the second web.

[0015] Furthermore, the composite beam structure includes a first beam assembly, a second beam assembly, and a third beam assembly;

[0016] The first beam assembly includes a first beam rectangular plate and a first H-beam. The first H-beam includes a third web and two third flanges. The two third flanges are disposed opposite to each other on both sides of the third web. The first beam rectangular plate is connected to the third flange. The third web is connected to one side of the channel steel or the special-shaped H-beam through the corresponding U-shaped connecting assembly.

[0017] The second beam assembly includes a second beam rectangular plate and a second H-beam. The second H-beam includes a fourth web and two fourth flanges. The two fourth flanges are disposed opposite to each other on both sides of the fourth web. The second beam rectangular plate is connected to the fourth flange. The fourth web is connected to one side of the channel steel or the special-shaped H-beam through the corresponding U-shaped connecting assembly.

[0018] The third beam assembly includes a third beam rectangular plate and a third H-shaped steel beam. The third H-shaped steel beam includes a fifth web and two fifth flanges. The two fifth flanges are arranged opposite to each other on both sides of the fifth web. The third beam rectangular plate is connected to the fifth flanges. The fifth web is connected to one side of the channel steel or the special-shaped H-beam through the corresponding U-shaped connecting assembly.

[0019] The length of the first beam assembly is greater than the length of the second beam assembly, and the length of the second beam assembly is greater than the length of the third beam assembly.

[0020] Furthermore, the height of the channel steel should meet the following conditions:

[0021]

[0022] In the formula: The height of the channel steel, The height of the first wooden pillar. The length of the end of the channel steel exposed above the first wooden post. t Let be the thickness of the rectangular plate of the first beam. t 1 The thickness of the third flange. The height of the third web plate.

[0023] Furthermore, the height of the shaped H-beam should meet the following conditions:

[0024]

[0025] In the formula: The height of the irregular H-beam. The height of the first wooden pillar. The length of the end of the connecting part exposed outside the second wooden post. The length of the insertion part, t Let be the thickness of the rectangular plate of the first beam. t 1 The thickness of the third flange. The height of the third web plate.

[0026] Furthermore, it also includes an ear plate connector, which includes a first ear plate and a second ear plate. The first ear plate is connected to the second ear plate and is at a right angle. The first ear plate has a fifth screw hole that connects to the first extension end or the second extension end, and the second ear plate has a sixth screw hole that connects to the corresponding composite beam structure.

[0027] Furthermore, the U-shaped connection assembly includes a first U-shaped connector, a second U-shaped connector, and a third U-shaped connector;

[0028] The first U-shaped connector includes a sixth web and two sixth flanges. The two sixth flanges are disposed opposite to each other on both sides of the sixth web. The sixth web has a plurality of seventh screw holes and the sixth flanges have a plurality of eighth screw holes. One of the sixth flanges is connected to the first extension end or the second extension end and forms a second gap with the ear plate connector for the corresponding composite beam structure to be inserted and connected.

[0029] The second U-shaped connector includes a seventh web and two seventh flanges. The two seventh flanges are disposed opposite to each other on both sides of the seventh web. The seventh web has a plurality of ninth screw holes, and the seventh flanges have a plurality of tenth screw holes. One seventh flange is connected to the first extended end, and a third gap is formed between the other seventh flange and the seventh flange of another second U-shaped connector; or, one seventh flange is connected to the second extended end, and a third gap is formed between the other seventh flange and the third U-shaped connector. The corresponding composite beam structure is inserted into the third gap to connect with the second U-shaped connector and / or the third U-shaped connector.

[0030] The third U-shaped connector includes an eighth web and two eighth flanges. The two eighth flanges are disposed opposite to each other on both sides of the eighth web. Multiple eleventh screw holes are provided on the eighth flanges. One eighth flange is connected to the first extension end. A third gap is formed between the other eighth flange and the seventh flange to allow the corresponding composite beam structure to be inserted and connected.

[0031] Compared with the prior art, the modular steel-wood composite connection node structure of this invention has the following advantages:

[0032] This invention utilizes bolted connections between a first wooden column, a second wooden column, channel steel, irregular H-beams, U-shaped connecting components, and a composite beam structure as an interlayer connection method. This not only reduces the complexity of the grooves in traditional mortise and tenon joints and steel filler / steel clamp bolt connections, but also avoids excessive initial slippage between metal connectors such as nails and toothed plates and the wooden components. Simultaneously, it reduces material damage to the wood caused by irregular grooves, and the steel-wood composite components effectively utilize the mechanical properties of both steel and wood, improving the axial compression, bending, and shear resistance of columns and beams, thereby enhancing the mechanical properties of the joints and the overall structure. Furthermore, the above structures are all mainly prefabricated in the factory and assembled on site. The assembly of the first composite module unit node or the second composite module unit node, as well as the connection assembly between the first composite module unit node or the second composite module unit node, are all connection and installation between steel components, which has a high degree of prefabrication. Moreover, the thickness of the channel steel, special H-beam, U-shaped connection components and composite beam structure is relatively small, which reduces the workload of bolt installation, basically eliminates deviation, and makes installation simple. This not only reduces the difficulty of on-site operations for workers, but also does not require high technical skills from construction personnel, making it easier to ensure construction quality, and is easy to install, disassemble and recycle. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the first composite column in an embodiment of the present invention;

[0034] Figure 2This is a top view of the first composite column in an embodiment of the present invention;

[0035] Figure 3 This is a front view of the first composite column in an embodiment of the present invention;

[0036] Figure 4 This is a schematic diagram of the structure of the first wooden pillar in an embodiment of the present invention;

[0037] Figure 5 This is a schematic diagram of the channel steel structure in an embodiment of the present invention;

[0038] Figure 6 As described in the embodiments of the present invention Figure 4 A magnified view of part A circled in the diagram;

[0039] Figure 7 This is a schematic diagram of the structure of the second composite column in an embodiment of the present invention;

[0040] Figure 8 This is a front view of the second composite column in an embodiment of the present invention;

[0041] Figure 9 This is a schematic diagram of the structure of the second wooden pillar in an embodiment of the invention;

[0042] Figure 10 This is a schematic diagram of the structure of the irregular H-beam in an embodiment of the present invention;

[0043] Figure 11 This is a schematic diagram of the structure of the first beam assembly in an embodiment of the present invention;

[0044] Figure 12 This is a schematic diagram of the structure of the first H-shaped steel beam in an embodiment of the present invention;

[0045] Figure 13 This is a schematic diagram of the structure of the second beam assembly in an embodiment of the present invention;

[0046] Figure 14 This is a schematic diagram of the structure of the second H-shaped steel beam in an embodiment of the present invention;

[0047] Figure 15 This is a schematic diagram of the structure of the third beam assembly in an embodiment of the present invention;

[0048] Figure 16 This is a schematic diagram of the third H-shaped steel beam in an embodiment of the present invention;

[0049] Figure 17 This is a schematic diagram of the ear plate connector in an embodiment of the present invention;

[0050] Figure 18 This is a schematic diagram of the structure of the first U-shaped connector in an embodiment of the present invention;

[0051] Figure 19 This is a schematic diagram of the structure of the second U-shaped connector in an embodiment of the present invention;

[0052] Figure 20 This is a schematic diagram of the structure of the third U-shaped connector in an embodiment of the present invention;

[0053] Figure 21 This is a schematic diagram of the structure of the first-level assembly in an embodiment of the present invention;

[0054] Figure 22 This is a schematic diagram of the structure of the second-level assembly in an embodiment of the present invention;

[0055] Figure 23 This is a schematic diagram of the structure of the third-level assembly in an embodiment of the present invention;

[0056] Figure 24 This is an exploded view of the fourth-level assembly in an embodiment of the present invention;

[0057] Figure 25 This is a schematic diagram of the structure of the fourth-level assembly in an embodiment of the present invention;

[0058] Figure 26 This is an exploded view of the five-stage assembly in an embodiment of the present invention;

[0059] Figure 27 This is a schematic diagram of the structure of the five-stage assembly in an embodiment of the present invention;

[0060] Figure 28 This is an exploded view of the sixth-level assembly in an embodiment of the present invention;

[0061] Figure 29 This is a schematic diagram of the sixth-level assembly in an embodiment of the present invention;

[0062] Figure 30 This is a schematic diagram of the structure of the seventh-level assembly in an embodiment of the present invention;

[0063] Figure 31 This is an exploded view of the assembly process of the first composite module unit node and the second composite module unit node in an embodiment of the present invention.

[0064] Figure 32 This is a schematic diagram of the assembled structure of the first composite module unit node and the second composite module unit node in an embodiment of the present invention.

[0065] Figure 33 This is an exploded view of the assembly of the first composite module unit node and the seventh-level assembly in an embodiment of the present invention;

[0066] Figure 34This is a schematic diagram of the five-module steel-wood composite node structure after the first composite module unit node and the seventh-level assembly are assembled in an embodiment of the present invention.

[0067] Figure 35 This is a schematic diagram of the complete eight-module steel-wood composite node in an embodiment of the present invention.

[0068] In the figure, 1 is the first composite column; 11 is the first wooden column; 111 is the first mating groove; 12 is the channel steel; 121 is the first extended end; 122 is the first web; 123 is the first flange; 124 is the first screw hole; 125 is the second screw hole; and 13 is the first spacer.

[0069] 2. Second composite column; 21. Second wooden column; 211. Second mating groove; 22. Special-shaped H-beam; 221. Second extended end; 222. Second web; 2221. Connecting part; 2222. Insertion part; 223. Second flange; 224. Third screw hole; 225. Fourth screw hole;

[0070] 3. U-shaped connecting assembly; 31. First U-shaped connector; 311. Sixth web plate; 312. Sixth flange; 313. Seventh screw hole; 314. Eighth screw hole; 32. Second U-shaped connector; 321. Seventh web plate; 322. Seventh flange; 323. Ninth screw hole; 324. Tenth screw hole; 33. Third U-shaped connector; 331. Eighth web plate; 332. Eighth flange; 333. Eleventh screw hole;

[0071] 4. Composite beam structure; 41. First beam assembly; 411. First beam rectangular plate; 412. First H-beam; 4121. Third web; 4122. Third flange; 4123. Twelfth bolt hole; 42. Second beam assembly; 421. Second beam rectangular plate; 422. Second H-beam; 4221. Fourth web; 4222. Fourth flange; 4223. Thirteenth bolt hole; 43. Third beam assembly; 431. Third beam rectangular plate; 432. Third H-beam; 4321. Fifth web; 4322. Fifth flange; 4323. Fourteenth bolt hole;

[0072] 5. Locking components;

[0073] 6. Ear plate connector; 61. First ear plate; 62. Second ear plate; 63. Fifth screw hole; 64. Sixth screw hole. Detailed Implementation

[0074] The embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. It should be noted that, as mentioned herein, the height refers to the vertical dimension of the modular steel-wood composite connection node structure in actual use of this embodiment; the width refers to the horizontal dimension of the wider side of each component in the modular steel-wood composite connection node structure in actual use of this embodiment; the length refers to the horizontal dimension of the longer side of each component in the modular steel-wood composite connection node structure in actual use of this embodiment; and the thickness refers to the wall thickness of each component in the modular steel-wood composite connection node structure in actual use of this embodiment.

[0075] like Figure 1 , Figure 7 , Figure 24 and Figure 35 As shown, the present invention provides a modular steel-wood composite connection node structure, including multiple first composite columns 1, multiple second composite columns 2, multiple U-shaped connection components 3, multiple composite beam structures 4, and multiple locking elements 5; the first composite column 1 includes two first wooden columns 11 and two channel steels 12, and the first wooden column 11 has a first mating groove 111 (e.g., Figure 4 As shown), the channel steel 12 is connected to the corresponding first wooden post 11 through the first mating groove 111, the two first wooden posts 11 are fitted together, and there is a first gap 13 between the two channel steels 12 (as shown). Figure 2 As shown), the channel steel 12 has a first extended end 121 exposed at both ends of the first wooden column 11. The first extended end 121 is connected to the corresponding U-shaped connecting component 3. The U-shaped connecting component 3 is connected to the corresponding composite beam structure 4 through the locking member 5 to form the first composite module unit node.

[0076] The second composite column 2 includes two second wooden columns 21 and a special-shaped H-beam 22. The second wooden column 21 has a second mating groove 211 (e.g., Figure 9 As shown), two second wooden posts 21 are connected by a special-shaped H-beam 22. The special-shaped H-beam 22 has a second extended end 221 exposed at both ends of the second wooden post 21. The second extended end 221 is connected to the corresponding U-shaped connecting component 3. The U-shaped connecting component 3 is connected to the corresponding composite beam structure 4 through a locking member 5 to form a second composite module unit node. The second extended end 221 is inserted into the corresponding first interval 13 and connected to the first composite module unit node through the locking member 5.

[0077] It should be noted that in this embodiment, the locking component 5 is a bolt, the first wooden post 11 and the second wooden post 21 are wooden structures, and the U-shaped connecting component 3 and the composite beam structure 4 are steel structures.

[0078] Based on the above structure, this embodiment utilizes bolted connections between the first wooden column 11, the second wooden column 21, the channel steel 12, the irregular H-beam 22, the U-shaped connecting component 3, and the composite beam structure 4 as an interlayer connection method. This not only reduces the complexity of the grooves in traditional mortise and tenon joints and steel filler plate / steel clamp bolt connections, but also avoids excessive initial slippage between metal connectors such as nails and toothed plates and wooden components. Simultaneously, it reduces the original material damage to the wood caused by irregular grooves, and the steel-wood composite components effectively utilize the mechanical properties of both steel and wood, improving the axial compression, bending, and shear resistance of columns and beams, thereby improving the mechanical properties of the joints and the overall structure. Furthermore, the above structures are all mainly prefabricated in the factory and assembled on site. The assembly of the first composite module unit node or the second composite module unit node, as well as the connection assembly between the first composite module unit node or the second composite module unit node, are all connection and installation between steel components, which has a high degree of prefabrication. Moreover, the thickness of the channel steel 12, the special H-beam 22, the U-shaped connection component 3 and the composite beam structure 4 is relatively small, which reduces the workload of bolt installation, basically eliminates deviation and makes installation simple. This not only reduces the difficulty of on-site operation for workers, but also does not require high technical level of construction personnel, making it easier to ensure construction quality, and is easy to install, disassemble and recycle.

[0079] like Figure 4 As shown, the channel steel 12 includes a first web 122 and first flanges 123 disposed on both sides of the first web 122. The first flanges 123 increase the bending strength of the channel steel 12 and provide additional mounting surfaces. They are installed in corresponding first mating grooves 111. The first web 122 has multiple first screw holes 124 connected to the U-shaped connecting assembly 3, and the first flanges 123 have multiple second screw holes 125 connected to the U-shaped connecting assembly 3. The shape and number of the first screw holes 124 and the second screw holes 125 can be adjusted according to performance requirements. In this embodiment, two circular first screw holes 124 are provided on one side of the central axis of the first web 122, and two circular second screw holes 125 are provided on one side of the central axis of the first flanges 123. This channel steel 12 is a thin-walled channel steel 12.

[0080] like Figure 10As shown, the H-beam 22 includes a second web 222 and a second flange 223. The second web 222 includes a connecting portion 2221 and an insertion portion 2222. Two second flanges 223 are disposed opposite each other on both sides of the second web 222 to form an H-shaped cross-section. This structure increases the bending strength of the channel steel 12 and provides additional mounting surfaces. Two insertion portions 2222 are disposed opposite each other at both ends of the connecting portion 2221 for insertion into the first interval 13 and connected by locking members to enhance the connection strength between the first composite module unit node and the second composite module unit node. The second flange 223 is installed in the corresponding second mating groove 211. The second web 222 has multiple third screw holes 224 connected to the U-shaped connecting assembly 3, and the second flange 223 has multiple fourth screw holes 225 connected to the U-shaped connecting assembly 3. The shape and number of the third screw holes 224 and the fourth screw holes 225 can be adjusted according to performance requirements. In this embodiment, two circular third screw holes 224 are provided on one side of the central axis of the second web 222, and two circular fourth screw holes 225 are provided on one side of the central axis of the second flange 223. The special-shaped H-beam 22 is a lightweight H-beam.

[0081] This embodiment, through the use of channel steel 12 and shaped H-beams 22, provides mounting surfaces for the various components of the first and second composite module unit nodes, while also ensuring a tight connection between these components, forming a robust whole and avoiding slippage problems that may occur in traditional connection methods. Furthermore, the multi-point bolt connection method used in this embodiment (such as the first bolt hole 124, the second bolt hole 125, the third bolt hole 224, and the fourth bolt hole 225) helps to evenly distribute the load applied to the structure, reducing local stress concentration and improving the safety and durability of the entire building structure.

[0082] Understandably, this embodiment utilizes the bolted connection of channel steel 12 and irregular H-beam 22 as the interlayer connection method. This not only reduces the complexity of the grooves in traditional mortise and tenon joints and steel filler plate / steel clamp bolt connections, but also reduces the original material damage to the wood caused by irregular grooves. It also avoids excessive initial slippage between metal connectors such as nails and toothed plates and the wooden components. Simultaneously, the standardized component design makes on-site assembly simple and quick, reducing reliance on complex tools and skilled workers, and improving construction efficiency. Furthermore, different screw hole positions (such as the first screw hole 124, the second screw hole 125, the third screw hole 224, and the fourth screw hole 225) provide multiple connection options, which can be flexibly adjusted according to actual needs to adapt to different architectural design requirements.

[0083] like Figure 5 and Figure 6As shown, the first wooden post 11 has a rectangular cross-section. Two first mating grooves 111 are spaced apart along the length of the first wooden post 11, and the first mating grooves 111 penetrate the first wooden post 11 along its height. The depth of the side of the first mating groove 111 away from the other first mating groove 111 is twice the thickness of the first web 122, and the distance between the two first mating grooves 111 is equal to the width of the first web 122. D 1 This ensures that the channel steel 12 can be embedded in the first wooden post 11; it is understood that the two first wooden posts 11 and the two channel steels 12 are connected by gluing or riveting or by a combination of gluing and riveting to form a first composite post. In this embodiment, the two first wooden posts 11 and the two channel steels 12 are connected by gluing to form a first composite post.

[0084] like Figure 8 and Figure 10 As shown, the cross-sectional shape of the second wooden column 21 is rectangular. Two second mating grooves 211 are spaced apart along the length of the second wooden column 21, and the second mating grooves 211 penetrate the second wooden column 21 along the height direction. The depth of the side of the second mating groove 211 away from the other is twice the thickness of the second web 222, and the distance between the two second mating grooves 211 is equal to the width of the second web 222. D 2 This ensures that the irregular H-beam 22 can be embedded within the second wooden post 21. Understandably, the two second wooden posts 21 and the irregular H-beam 22 are connected by gluing, riveting, or a combination of gluing and riveting to form a second composite post. In this embodiment, the two second wooden posts 21 and the irregular H-beam 22 are bonded together to form the second composite post.

[0085] This embodiment, by limiting the dimensions of the first mating groove 111 and the second mating groove 211, ensures that the channel steel 12 and the shaped H-beam 22 can be firmly fixed within the first wooden post 11 and the second wooden post 21, respectively, thus increasing the stability of the overall structure. Furthermore, by limiting the depth and spacing of the first mating groove 111 and the second mating groove 211, the channel steel 12 and the shaped H-beam 22 can be embedded into the wooden first wooden post 11 and the second wooden post 21, utilizing both the high strength of the steel and the good working properties of the wood, achieving a better combination of materials.

[0086] Furthermore, the first interval 13 is greater than or equal to the thickness of the second web 222. When the second extension end 221 is inserted into the first interval 13, there is enough space to ensure the stability of the connection between the insertion part 2222 and the first web 122, while also allowing a certain degree of adjustment to accommodate errors in manufacturing and installation.

[0087] like Figure 3 and Figure 5 As shown, the width of the first flange 123 of the channel steel 12 D 3 Width of the first web 122 D 1 Less than the length of the first wooden post 11 L 3 Its dimensions are selected based on actual engineering performance requirements. Specifically, the width of the first web 122... D 1 The length of the first wooden pillar 11 L 3 The width of the first flange 123 is 0.5-0.7, which ensures that the first web 122 provides sufficient support area to withstand vertical and horizontal loads in building structures of different sizes, while maintaining the lightweight of the structure; D 3 The width of the first web 122 D 1 The range of 0.4-0.6 helps to enhance the bending stiffness and stability of the overall structure. The wider first flange 123 can increase the moment of inertia of the section, thereby improving the ability of the component to resist bending deformation.

[0088] Preferably, the width of the first web 122 D 1 The length of the first wooden post 11 L 3 The value is taken from approximately 2 / 3 of the width of the first flange 123. D 3 Equal to the width of the first web plate 122 L 3 Half of, and the width of the first flange 123 D 3 Equal to the width of the first web plate 122 D 1 By subtracting twice the thickness of the first web 122, sufficient thickness is ensured at the connection between the first flange 123 and the first web 122 to avoid local damage caused by stress concentration. At the same time, the transition between the first web 122 and the first flange 123 is ensured to reduce stress concentration points and improve the overall durability and safety of the structure.

[0089] like Figure 8 and Figure 10 As shown, the width of the second flange 223 of the irregular H-beam 22 D 4 Width of the second web 222 D 2 Less than the length of the second wooden pillar 21 L 4Its size is selected according to the actual engineering performance requirements. The width of the second web 222... D 2 The length of the second wooden pillar 21 L 4 A width of 0.5-0.7 helps to enhance the overall structural bending stiffness and stability. A wider second flange 223 can increase the moment of inertia of the section, thereby improving the component's ability to resist bending deformation. Preferably, the width of the second web 222 is... D 2 The length of the second wooden post 21 L 4 The value is taken from approximately 2 / 3 of the width of the second flange 223. D 4 The width of the second web 222 D 2 A width of 0.4-0.6 helps enhance the bending resistance of the structure, making the entire component more stable and less prone to deformation. Preferably, the width of the second flange 223 is... D 4 Equal to the width of the second web 222 D 2 Half of, and the width of the second wing edge 223 D 4 Equal to the width of the second web 222 D 2 By reducing the thickness of the second web 222 by twice, a good transition between the second flange 223 and the second web 222 is ensured, stress concentration points are reduced, and the overall durability and safety of the structure are improved.

[0090] Furthermore, the composite beam structure 4 includes a first beam assembly 41, a second beam assembly 42, and a third beam assembly 43;

[0091] like Figure 11 and Figure 12 As shown, the first beam assembly 41 includes a first beam rectangular plate 411 and a first H-shaped steel beam 412. The first beam rectangular plate 411 is usually made of wood or other lightweight high-strength materials to enhance the overall rigidity and load-bearing capacity of the first beam assembly 41. The first H-shaped steel beam 412 includes a third web 4121 and two third flanges 4122. The two third flanges 4122 are arranged opposite to each other on both sides of the third web 4121 to form an H-shaped section, which enhances the bending resistance of the first H-shaped steel beam 412. The third web 4121 mainly bears shear force, and the third flanges 4122 are mainly used to resist bending stress. The first beam rectangular plate 411 is connected to the third flange 4122, which increases the stability of the first H-shaped steel beam 412. The third web 4121 is connected to one side of the channel steel 12 or the special-shaped H-beam 22 through a corresponding U-shaped connecting assembly 3.

[0092] The length of the first rectangular beam 411 is the same as the length of the first H-shaped steel beam 412. A twelfth screw hole 4123 is provided at the end of the third web 4121 of the first H-shaped steel beam 412. The third flanges 4122 on both sides are connected to the first rectangular beam 411 by gluing, riveting, or a combination of gluing and riveting to form the first beam assembly 41. In this embodiment, the first rectangular beam 411 and the first H-shaped steel beam 412 are glued together to form the first beam assembly 41. The width of the third flange 4122 of the first H-shaped steel beam 412... D 5 The width of the second web 222 of the H-beam 22 is equal to the width of the second web 222 of the H-beam 22. D 2 Preferably, the cross-sectional dimensions of the first H-beam 412 are consistent with those of the special-shaped H-beam 22. In practical applications, the dimensions also need to be determined according to the actual engineering requirements, and are determined according to the design requirements of the beam. Similarly, the structural dimensions of the first beam rectangular plate 411 connected to the first wooden column 11 are all consistent.

[0093] like Figure 13 and Figure 14 As shown, the second beam assembly 42 includes a second beam rectangular plate 421 and a second H-beam 422. The second H-beam 422 includes a fourth web 4221 and two fourth flanges 4222. The two fourth flanges 4222 are arranged opposite to each other on both sides of the fourth web 4221. The second beam rectangular plate 421 is connected to the fourth flanges 4222. The fourth web 4221 is connected to one side of the channel steel 12 or the special-shaped H-beam 22 through the corresponding U-shaped connecting assembly 3.

[0094] The length of the second rectangular plate 421 is the same as the length of the second H-beam 422. The width of the second rectangular plate 421 is the same as the width of the second H-beam 422, and is equal to the distance from the first web 122 of the channel steel 12 to the long side of the first wooden column 11 parallel to the first web 122, or equal to the distance from the second web 222 of the special-shaped H-beam 22 to the long side of the second wooden column 21 parallel to the second web 222. The cross-sections of the second rectangular plate 421 and the second H-beam 422... The dimensions of the surface are the same as those of the first rectangular plate 411 and the first H-shaped steel beam 412. The ends of the fourth web plate 4221 of the second H-shaped steel beam 422 are provided with thirteenth screw holes 4223. The fourth flanges 4222 on both sides are connected to the two second rectangular plates 421 by gluing or riveting or gluing and riveting to form the second beam assembly 42. In this embodiment, the second rectangular plate 421 and the second H-shaped steel beam 422 are glued together to form the second beam assembly 42.

[0095] like Figure 15 and Figure 16As shown, the third beam assembly 43 includes a third beam rectangular plate 431 and a third H-shaped steel beam 432. The third H-shaped steel beam 432 includes a fifth web plate 4321 and two fifth flanges 4322. The two fifth flanges 4322 are arranged opposite to each other on both sides of the fifth web plate 4321. The third beam rectangular plate 431 is connected to the fifth flanges 4322. The fifth web plate 4321 is connected to one side of the channel steel 12 or the special-shaped H-beam 22 through the corresponding U-shaped connecting assembly 3.

[0096] The width of the third beam rectangular plate 431 is the same as the width of the third H-shaped steel beam 432, and is equal to the distance from the first flange 123 of the channel steel 12 to the wide side of the first wooden column 11 parallel to the first flange 123, or equal to the distance from the second flange 223 of the special-shaped H-shaped steel 22 to the wide side of the second wooden column 21 parallel to the second flange 223. The cross-sectional dimensions of the third beam rectangular plate 431 and the third H-shaped steel beam 432 are the same as the dimensions of the first beam rectangular plate 411 and the first H-shaped steel beam 412, respectively. The middle of the fifth web plate 4321 of the third H-shaped steel beam 432 is provided with a fourteenth screw hole 4323. The fifth flanges 4322 on both sides are connected to the third beam rectangular plate 431 by gluing or riveting or gluing and riveting to form the third beam assembly 43. In this embodiment, the third beam rectangular plate 431 and the third H-shaped steel beam 432 are formed by gluing and bonding to form the third beam assembly 43.

[0097] The first beam assembly 41 is longer than the second beam assembly 42, and the second beam assembly 42 is longer than the third beam assembly 43, to accommodate different span requirements or the spatial layout of the building. Longer beams can span greater distances, while shorter beams are suitable for smaller spaces or places requiring more delicate support.

[0098] This embodiment combines rectangular beams with H-beams, utilizing the high tensile strength of steel and the good compressibility of wood to create a composite beam structure 4 that is both robust and flexible. The modular design allows these components to be prefabricated in the factory and then quickly assembled on-site, significantly improving construction efficiency and reducing on-site work. The H-beam structure effectively distributes loads and reduces localized stress concentrations. Combined with U-shaped connecting components 3, it achieves stable node connections, enhancing the overall safety and reliability of the building. By selecting beams of different lengths, it can flexibly meet various architectural design needs, finding excellent applications in both large spans and small spaces.

[0099] like Figure 3 , Figure 11 and Figure 12 As shown, the height of channel steel 12 is greater than the height of the first wooden post 11; the height of channel steel 12 should meet the following conditions:

[0100]

[0101] In the formula: The height of channel steel 12, The height of the first wooden pillar 11 The length of the channel steel 12 exposed at one end of the first wooden post 11. t The thickness of the first beam rectangular plate 411 is... t 1 The thickness of the third flange is 4122. The height of the third web plate is 4121.

[0102] This formula ensures that the channel steel 12 not only completely covers the height of the first wooden post 11, but also provides sufficient extension length for external connections. Considering key dimensions such as the first beam rectangular plate 411, the third flange 4122 of the first H-beam 412, and the third web 4121, it helps optimize material usage, avoids waste, and ensures structural safety. Furthermore, it guarantees compatibility between the channel steel 12 and other components (such as the composite beam structure 4 and the U-shaped connection assembly 3), enhancing the overall structural stability and safety. It should be noted that the length of the channel steel 12 exposed at one end of the first wooden post 11 in this embodiment can also be understood as the height of the channel steel 12 exposed at one end of the first wooden post 11.

[0103] like Figure 8 , Figure 11 and Figure 12 As shown, the height of the special-shaped H-beam 22 is greater than the height of the second wooden column 21; the length of the special-shaped H-beam 22 should meet the following conditions:

[0104]

[0105] In the formula: The height of the 22mm special-shaped H-beam. The height of the first wooden pillar 11 The length of the end of the connecting part 2221 exposed outside the second wooden post 21. The length of the insertion part 2222 t The thickness of the first beam rectangular plate 411 is... t 1 The thickness of the third flange is 4122. The height of the third web plate is 4121.

[0106] This formula ensures that the irregular H-beam 22 not only fits the height of the second wooden post 21, but also provides sufficient exposed length at both ends for connection. Considering key dimensions such as the first beam rectangular plate 411, the third flange 4122 of the first H-beam 412, and the third web 4121, it helps optimize material usage, avoids waste, and ensures structural safety. In particular, the length of the insertion part 2222 ensures that the irregular H-beam 22 can be firmly inserted into the corresponding first interval 13, increasing the stability of the entire node. It should be noted that the length of the connecting part 2221 exposed at one end of the second wooden post 21 in this embodiment can also be understood as the height of the connecting part 2221 exposed at one end of the second wooden post 21, and the length of the insertion part 2222 can also be understood as the height of the insertion part 2222.

[0107] See also Figure 17 It also includes an ear plate connector 6, which includes a first ear plate 61 and a second ear plate 62. The first ear plate 61 and the second ear plate 62 are connected at right angles to form an L-shaped structure. The first ear plate 61 has a fifth screw hole 63 that connects to the first extension end 121 or the second extension end 221. By passing a bolt through the fifth screw hole 63 and tightening it, the ear plate connector 6 can be firmly attached to the first extension end 121 or the second extension end 221. The second ear plate 62 has a sixth screw hole 64 that connects to the corresponding composite beam structure 4. By bolting, the second ear plate 62 is connected to the corresponding position on the composite beam structure 4 (e.g., the fifth web plate 4321 of the third H-shaped steel beam 432), thereby realizing a stable connection between the first composite column 1 and the third beam assembly 43 or between the second composite column 2 and the third beam assembly 43. It should be noted that the dimensions and positions of the fifth screw hole 63 and the sixth screw hole 64 correspond to the second screw hole 125 at the first flange 123 of the first extension end 121, the fourth screw hole 225 at the second flange 223 of the second extension end 221, and the fourteenth screw hole 4323 at the fifth web 4321 of the third H-shaped steel beam 432.

[0108] This embodiment increases the contact area at the connection points between the first composite column 1 and the third beam assembly 43, or between the second composite column 2 and the third beam assembly 43, by adding ear plate connectors 6. It also provides more fixing points through multiple fifth screw holes 63 and sixth screw holes 64, effectively enhancing the stability and load-bearing capacity of the overall structure. Because the ear plate connectors 6 have preset positions for the fifth screw holes 63 and sixth screw holes 64, the components can be more accurately aligned during on-site installation, reducing errors caused by manual adjustments and improving construction quality.

[0109] It should be noted that the first ear plate 61 and the second ear plate 62 in this embodiment are made of rectangular thin steel sheets, which can be formed by machine rolling or high-frequency welding. Their width is less than or equal to the width of the first flange 123, the second flange 223, the third flange 4122, the fourth flange 4222 or the fifth flange 4322, and the height of the first ear plate 61 and the second ear plate 62 is less than the height of the third web plate 4121 of the first H-shaped steel beam 412.

[0110] Furthermore, the U-shaped connection assembly 3 includes a first U-shaped connector 31, a second U-shaped connector 32, and a third U-shaped connector 33;

[0111] like Figure 18 As shown, the first U-shaped connector 31 includes a sixth web 311 and two sixth flanges 312. The two sixth flanges 312 are arranged opposite to each other on both sides of the sixth web 311. The sixth web 311 has multiple seventh screw holes 313, and the sixth flanges 312 have multiple eighth screw holes 314. One sixth flange 312 is connected to the first extension end 121 or the second extension end 221, and a second gap is formed between it and the ear plate connector 6, so as to allow the corresponding composite beam structure 4 (such as the first beam assembly 41, the third beam assembly 43) to be inserted and connected. The sixth web 311 and the sixth flanges 312 are made of rectangular thin steel sheets, which can be formed by machine rolling or high-frequency welding. The width of the sixth web 311 is equal to the fifth web of the third H-shaped steel beam 432. The width of 4321, the width of the sixth flange 312 is less than or equal to the width of the first flange 123, the second flange 223, the third flange 4122, the fourth flange 4222 or the fifth flange 4322, the height of the sixth web 311 and the sixth flange 312 are both less than or equal to the height of the first web 122, the second web 222, the third web 4121, the fourth web 4221 or the fifth web 4321, and the size and position of the seventh screw hole 313 and the eighth screw hole 314 correspond to the second screw hole 125 at the first flange 123 of the first extension end 121, the fourth screw hole 225 at the second flange 223 of the second extension end 221 and the fourteenth screw hole 4323 at the fifth web 4321 of the third H-shaped steel beam 432.

[0112] like Figure 19As shown, the second U-shaped connector 32 includes a seventh web 321 and two seventh flanges 322. The two seventh flanges 322 are disposed opposite to each other on both sides of the seventh web 321. The seventh web 321 has multiple ninth screw holes 323, and the seventh flanges 322 have multiple tenth screw holes 324. One seventh flange 322 is connected to the first extension end 121, and the other seventh flange 322 forms a third gap with the seventh flange 322 of another second U-shaped connector 32; or, one seventh flange 322 is connected to the second extension end 221, and the other seventh flange 322 forms a third gap with the third U-shaped connector 33. The corresponding composite beam structure 4 (such as the second beam assembly 42) is inserted into the third gap to connect with the second U-shaped connector 32 and / or the third U-shaped connector 33. The seventh web 321 and the seventh flanges 322 are rectangular Made of thin steel sheets, it can be formed by machine rolling or high-frequency welding. The width of the seventh web 321 is equal to the width of the fifth web 4321 of the third H-beam 432. The width of the seventh flange 322 is less than or equal to the width of the first flange 123, the second flange 223, the third flange 4122, the fourth flange 4222, or the fifth flange 4322. The height of the seventh web 321 and the seventh flange 322 is less than or equal to the height of the first web 122, the second web 222, the third web 4121, the fourth web 4221, or the fifth web 4321. The size and position of the ninth screw hole 323 and the tenth screw hole 324 opened in the seventh web 321 and the seventh flange 322 correspond to the second screw hole 125 at the first flange 123 of the first extension end 121 and the fourth screw hole 225 at the second flange 223 of the second extension end 221.

[0113] like Figure 20As shown, the third U-shaped connector 33 includes an eighth web 331 and two eighth flanges 332. The two eighth flanges 332 are arranged opposite to each other on both sides of the eighth web 331. Multiple eleventh screw holes 333 are provided on the eighth flanges 332. One eighth flange 332 is connected to the first extension end 121, and a fourth gap is formed between the other eighth flange 332 and the seventh flange 322 for the corresponding composite beam structure 4 to be inserted and connected. The eighth web 331 and the eighth flange 332 are made of rectangular thin steel sheets and can be formed by machine rolling or high-frequency welding. The width of the eighth web 331 is equal to the width of the fifth web 4321 of the third H-beam 432. The width of the eighth flange 332 is less than or equal to the width of the first flange 123, the second flange 223, the third flange 4122, the fourth flange 4222, or the fifth flange 4322. The height of the eighth web 331 and the two eighth flanges 332 is less than or equal to the height of the first web 122, the second web 222, the third web 4121, the fourth web 4221, or the fifth web 4321. The eighth flange 332 is provided with an eleventh screw hole 333. The size and position of the eleventh screw hole 333 correspond to the second screw hole 125 at the first flange 123 of the first extension end 121 and the fourth screw hole 225 at the second flange 223 of the second extension end 221.

[0114] This embodiment utilizes a combination of different types of U-shaped connecting components 3. Depending on specific engineering needs, appropriate types and combinations of U-shaped connecting components 3 can be selected to address different building forms and functional requirements, improving installation flexibility, simplifying and speeding up on-site installation, reducing the need for complex processes, and increasing work efficiency. It also provides stable support in multiple directions between the first composite column 1 and the third beam component 43, or between the second composite column 2 and the third beam component 43, ensuring the stability and safety of the entire building structure. Furthermore, the cooperation between the various U-shaped connecting components 3 not only enhances the stiffness at the joints but also improves the overall performance of the entire structural system, preventing damage caused by localized stress concentration. Because the connection between the U-shaped connecting components 3 and other components is detachable, maintenance or modification can be easily performed by simply loosening the corresponding bolts, reducing subsequent management costs.

[0115] Understandably, when the structure is a temporary building, especially a short-span temporary building or exhibit, ordinary adhesive that is easy to remove can be added to the first composite column 1, the second composite column 2, the U-shaped connection component 3, or the composite beam structure 4 to facilitate disassembly and reuse. Of course, this assumes that the design of the joint meets the structural performance requirements. For structures that need to be fixed for a long time, engineering-suitable structural adhesives or a combination of nail connections should be used. When the joint area still requires additional reinforcement, carbon fiber cloth can be used for wrapping and bonding. Since the cross-sections of the first wooden column 11 and the second wooden column 21 are regular rectangles, it is also convenient for the carbon fiber cloth to contact and wrap. The bolt area can be reinforced with small-area steel plates with screw holes, which is also convenient and quick, conducive to the reuse of the joint, extending the service life of the structure, and the regular construction of the joint also facilitates the decorative design of the joint surface.

[0116] The first mating groove 111 and the second mating groove 211 have regular rectangular cross sections. Compared with the traditional wooden mortise and tenon joints and the currently commonly used steel filler plate / steel clamp bolt connection for wooden structures, their manufacturing is greatly simplified, reducing the time and manpower required to manufacture the first mating groove 111 and the second mating groove 211. Furthermore, the use of steel-wood structure in the first composite column 1 and the second composite column 2 can better utilize the material properties of wood and steel, improve the basic mechanical properties of beams and columns—axial compression, bending resistance, and shear resistance, thereby improving the overall performance of the structure.

[0117] The assembly steps for the above-mentioned modular steel-wood composite connection node structure are as follows:

[0118] Step 1: Using bolts, connect the ear plate connector 6, the first U-shaped connector 31, the second U-shaped connector 32, and the third U-shaped connector 33 to the first web plate 122 and the first flange 123 of the channel steel 12, respectively, to form the first-stage assembly, as shown below. Figure 21 As shown;

[0119] Step 2: Using bolts, connect the ear plate connector 6, the first U-shaped connector 31, the second U-shaped connector 32, and the third U-shaped connector 33 to the second web 222 and the second flange 223 of the shaped H-beam 22 to form the second-level assembly, such as... Figure 22 As shown;

[0120] Step 3: Connect the ear plate connector 6 to the fourth web plate 4221 of the second H-shaped steel beam 422 using bolts to form the third-level assembly, such as... Figure 23 As shown.

[0121] Step 4: Connect the first-level assembly to the first H-beam 412, the second H-beam 422, and the third H-beam 432 using bolts to form the fourth-level assembly—the first composite module unit node, as shown below. Figure 24 and25 As shown.

[0122] Step 5: Connect the second-level assembly to the first H-beam 412, the second H-beam 422, and the third H-beam 432 using bolts to form the fifth-level assembly—the second composite module unit node, as shown below. Figure 26 and 27 As shown.

[0123] Step 6: Hoist and assemble the two second composite module unit nodes from the left and right sides, and connect them using bolts and the pre-installed ear plate connectors 6 in the second composite module unit nodes to form the sixth-level assembly—two single-module steel-wood composite nodes, as shown. Figures 28-29 As shown.

[0124] Step 7: Repeat step 6 twice to form the seventh-level assembly—a four-module steel-wood composite node, such as... Figure 30 As shown.

[0125] Step 8: The individual first composite module unit nodes are hoisted and inserted from top to bottom onto the insertion part 2222 of the irregular H-beam 22 of the second composite module unit node in the four-module steel-wood composite node, and connected using bolts and the second U-shaped connector 32 to form the eighth-level assembly—a five-module steel-wood composite node, as shown below. Figures 31-34 As shown, where Figure 31 and 32 This is a structural diagram showing the vertical hoisting and installation of a single first composite module unit node and a single second composite module unit node.

[0126] Step 9: Repeat step 8 three times to form a complete eight-module steel-wood composite node (i.e., a modular steel-wood composite connection node structure), as shown below. Figure 35 As shown.

[0127] The above steps can effectively complete the assembly of the present invention, but are not limited to the above steps. With appropriate adjustments, the assembly process can still be completed easily. For example, the ear plate connector 6 on the second H-shaped steel beam 422 can be installed first, but during the assembly of the modular unit steel-wood composite beam-column node. Alternatively, the ear plate connector 6 can be installed on the third web plate 4121 of the first H-shaped steel beam 412 or the fifth web plate 4321 of the third H-shaped steel beam 432 before assembling the modular unit steel-wood composite beam-column node.

[0128] Not limited to construction steps, since the irregular H-beam 22 has an insertion part 2222, it is inconvenient to use the conventional beam parallel to the ground during transportation. Therefore, it is recommended to use the second composite column 2 parallel to the ground or to install detachable or disposable protective tools (such as square foam, wooden grooves or wrap-around anti-slip mats) at the bottom of the second composite column 2. Of course, if the second composite column 2 is a structure installed on the first floor, the conventional beam parallel to the ground can still be used. This is because the second composite column 2 located on the first floor does not need to be connected to other units, and there is no need to reserve an excessively long insertion part 2222.

[0129] The modular steel-wood composite connection node structure and construction method provided by this invention offer two novel steel-wood composite columns: a first composite column 1 and a second composite column 2 formed by channel steel 12 and a rectangular first wooden column 11, and an irregular H-beam 22 and a rectangular second wooden column 21; and a steel-wood composite beam composed of rectangular wooden boards and lightweight H-beams (such as the first beam rectangular plate 411 and the first H-beam beam 412, etc.). The main method utilizes bolted connections between the web and flanges (such as the third web 4121 and the third flange 4122, etc.) of the channel steel 12 and the lightweight H-beams as the connection method between various components in the modular unit beams and columns (such as the first composite modular unit node and / or the second composite modular unit node) and between modular unit nodes (such as the first composite modular unit node and / or the second composite modular unit node). This not only reduces the complexity of the grooves in traditional mortise and tenon joints and steel filler plate / steel clamp bolt connections, but also reduces the original material damage to the wood caused by irregular grooves. It also avoids excessive initial slippage between metal connectors such as nails and toothed plates and wooden components.

[0130] Furthermore, steel-wood composite beam-column structures effectively utilize the mechanical properties of both steel and wood, improving the axial compression, bending, and shear resistance of columns and beams. In construction, they are both space-saving and aesthetically pleasing, with simple connection structures and easier installation. The steel-wood components forming the modular unit nodes can all be prefabricated in the factory, with on-site construction primarily involving assembly. The installation process is simple and involves few steps, with minimal bolt installation work, significantly reducing additional labor. Disassembly is simple and convenient, requiring only the reverse of the assembly process, and avoids unnecessary damage to the wooden components, promoting the reusability of steel-wood composite and modular buildings.

[0131] Furthermore, for single-layer and other multi-layer modular steel-wood composite connection node structures, due to the use of lightweight H-beams and thin steel plates for connection, the limitation on the number of layers still needs to be further determined, or beams and columns with larger cross-sectional dimensions and thicker steel plate connectors can be used. In addition, for the connection between beams between different columns, a modular steel-wood composite beam-column connection method (such as the connection between the first composite column 1 and composite beam structure 4) can also be adopted. That is, the composite beam structure 4 can be connected by opening holes at the ends and using flat-section thin steel plates and T-shaped thin steel plate connectors to connect double, triple, and quadruple beams.

[0132] In summary, this invention provides a modular steel-wood composite connection node structure that effectively utilizes the mechanical properties of steel and wood, improving the axial compression, bending, and shear resistance of columns and beams. Each component has pre-drilled bolt holes, and all connections between components are made with high-strength bolts. This effectively solves the problem of difficult connection and installation of the last module in the central node of an eight-module structure, improving construction convenience and minimizing environmental impact during construction. Furthermore, this modular steel-wood composite connection node structure facilitates inspection, disassembly, component replacement, and reinforcement during long-term use of the building structure, promoting reusability and extending the structure's lifespan. Disassembly is simple, requiring only the reverse of the assembly process, allowing disassembly to individual components without causing unnecessary damage to the wooden components, thus facilitating the recycling of temporary steel-wood composite buildings. Simultaneously, this modular steel-wood composite connection node structure saves building space, provides a clear force transmission path, is safe and reliable, and is simple and convenient to construct, meeting the needs of practical engineering design and construction. It is environmentally friendly and energy-saving, and the node facilitates disassembly, inspection, reinforcement, and recycling, better meeting current green building requirements and possessing significant practical value.

[0133] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A modular steel-wood composite connection node construction, characterized by, The composite column comprises a plurality of first composite columns, a plurality of second composite columns, a plurality of U-shaped connecting assemblies, a plurality of composite beam structures, and a plurality of locking members. The first composite column comprises two first wood columns and two channel steels, the first wood column has a first matching groove, the channel steel is connected with the corresponding first wood column through the first matching groove, the two first wood columns are connected in close contact, and the two channel steels have a first interval therebetween, the channel steel has a first extension end exposed at both ends of the first wood column, the first extension end is connected with the corresponding U-shaped connecting assembly, the U-shaped connecting assembly is connected with the corresponding composite beam structure through the locking member, so as to form a first composite module unit node. The second composite column comprises two second wood columns and a special-shaped H-shaped steel, the second wood column has a second matching groove, the two second wood columns are connected in close contact through the special-shaped H-shaped steel, the special-shaped H-shaped steel has a second extension end exposed at both ends of the second wood column, the second extension end is connected with the corresponding U-shaped connecting assembly, the U-shaped connecting assembly is connected with the corresponding composite beam structure through the locking member, so as to form a second composite module unit node, the second extension end is inserted into the corresponding first interval and connected with the first composite module unit node through the locking member. The channel steel comprises a first web and first flanges oppositely arranged on both sides of the first web, the first flange is arranged in the corresponding first matching groove, a plurality of first screw holes are formed in the first web and connected with the U-shaped connecting assembly, and a plurality of second screw holes are formed in the first flange and connected with the U-shaped connecting assembly. The special-shaped H-shaped steel comprises a second web and second flanges, the second web comprises a connecting portion and an inserting portion, the two second flanges are oppositely arranged on both sides of the second web to form a structure in the shape of H in cross section, the two inserting portions are oppositely arranged at both ends of the connecting portion, the second flange is arranged in the corresponding second matching groove, a plurality of third screw holes are formed in the second web and connected with the U-shaped connecting assembly, and a plurality of fourth screw holes are formed in the second flange and connected with the U-shaped connecting assembly.

2. The modular steel-wood composite connection node construction of claim 1, wherein, The first wood column has a rectangular cross-sectional shape, the two first matching grooves are arranged at intervals along the length direction of the first wood column, and the first matching grooves penetrate the first wood column along the height direction of the first wood column, the depth of the side of the first matching groove away from the other first matching groove is twice the thickness of the first web more than the depth of the other side, and the distance between the two first matching grooves is equal to the width of the first web. The second wood column has a rectangular cross-sectional shape, the two second matching grooves are arranged at intervals along the length direction of the second wood column, and the second matching grooves penetrate the second wood column along the height direction of the second wood column, the depth of the side of the second matching groove away from the other second matching groove is twice the thickness of the second web more than the depth of the other side, and the distance between the two second matching grooves is equal to the width of the second web.

3. The modular steel-wood composite connection node construction of claim 1, wherein, The first interval is greater than or equal to the thickness of the second web.

4. The modular steel-wood composite connection node construction of claim 1, wherein, The width of the first web is 0.5-0.7 of the length of the first wood column, and the width of the first flange is 0.4-0.6 of the width of the first web. The width of the second web is 0.5-0.7 of the length of the second wood column, and the width of the second flange is 0.4-0.6 of the width of the second web.

5. The modular steel-wood composite connection node construction of claim 1, wherein, The composite beam structure comprises a first beam assembly, a second beam assembly and a third beam assembly; The first beam assembly comprises a first beam rectangular plate and a first H-shaped steel beam, the first H-shaped steel beam comprises a third web and two third flanges, the two third flanges are oppositely arranged on both sides of the third web, the first beam rectangular plate is connected to the third flange, and the third web is connected to one side of the channel steel or the special-shaped H-shaped steel through a corresponding U-shaped connecting assembly; The second beam assembly comprises a second beam rectangular plate and a second H-shaped steel beam, the second H-shaped steel beam comprises a fourth web and two fourth flanges, the two fourth flanges are oppositely arranged on both sides of the fourth web, the second beam rectangular plate is connected to the fourth flange, and the fourth web is connected to one side of the channel steel or the special-shaped H-shaped steel through a corresponding U-shaped connecting assembly; The third beam assembly comprises a third beam rectangular plate and a third H-shaped steel beam, the third H-shaped steel beam comprises a fifth web and two fifth flanges, the two fifth flanges are oppositely arranged on both sides of the fifth web, the third beam rectangular plate is connected to the fifth flange, and the fifth web is connected to one side of the channel steel or the special-shaped H-shaped steel through a corresponding U-shaped connecting assembly; The length of the first beam assembly is greater than the length of the second beam assembly, and the length of the second beam assembly is greater than the length of the third beam assembly.

6. The modular steel-wood composite connection node construction of claim 5, wherein, The height of the channel steel should satisfy the following condition: wherein: H is the height of the channel, H1 is the height of the first timber column, L is the length of the channel exposed at one end of the first timber column, t T1 is the thickness of the first beam rectangular plate, t 1 T3 is the thickness of the third flange, H3 is the height of the third web.

7. The modular steel-wood composite connection node construction of claim 5, wherein, The height of the special-shaped H-shaped steel should satisfy the following condition: In the formula: is the height of the special-shaped H-beam, is the height of the first wooden column, is the length of one end of the connecting part exposed to the second wooden column, is the length of the inserting part, t is the thickness of the first beam rectangular plate, t 1 is the thickness of the third flange, is the height of the third web.

8. The modular steel-wood composite connection node construction of claim 1 or 5, wherein, Further comprising an ear plate connecting piece, the ear plate connecting piece comprises a first ear plate and a second ear plate, the first ear plate is connected with the second ear plate and is in a right angle shape, a fifth threaded hole is formed in the first ear plate and connected with the first outer extension end or the second outer extension end, and a sixth threaded hole is formed in the second ear plate and connected with a corresponding composite beam structure.

9. The modular steel-wood composite connection node construction of claim 8, wherein, The U-shaped connecting assembly comprises a first U-shaped connecting piece, a second U-shaped connecting piece and a third U-shaped connecting piece; The first U-shaped connecting piece comprises a sixth web and two sixth flanges, the two sixth flanges are oppositely arranged on both sides of the sixth web, a plurality of seventh threaded holes are formed in the sixth web, a plurality of eighth threaded holes are formed in the sixth flange, one sixth flange is connected with the first outer extension end or the second outer extension end, and a second interval is formed between the ear plate connecting piece and the sixth flange for inserting and connecting a corresponding composite beam structure. The second U-shaped connector comprises a seventh web plate and two seventh flanges oppositely arranged on both sides of the seventh web plate, a plurality of ninth screw holes are formed on the seventh web plate, a plurality of tenth screw holes are formed on the seventh flange, one seventh flange is connected with the first outer extension end, and a third interval is formed between the other seventh flange and the seventh flange of the other second U-shaped connector; or, one seventh flange is connected with the second outer extension end, and a third interval is formed between the other seventh flange and the third U-shaped connector, and the corresponding composite beam structure is inserted into the third interval to be connected with the second U-shaped connector and / or the third U-shaped connector; The third U-shaped connector comprises an eighth web plate and two eighth flanges oppositely arranged on both sides of the eighth web plate, a plurality of eleventh screw holes are formed on the eighth flange, one eighth flange is connected with the first outer extension end, and a third interval is formed between the other eighth flange and the seventh flange for inserting and connecting the corresponding composite beam structure.

Images