Modularized steel-wood composite connection node structure

Abstract

The invention discloses a modularized steel-wood composite connecting joint structure which comprises a first composite column, a second composite column, a U-shaped connecting assembly, a composite beam structure and a locking piece. The first composite column comprises first wooden columns and channel steel, the channel steel is connected with the first wooden columns through first matching grooves, the two first wooden columns are connected in an attached mode, a first interval is formed between the two channel steel, the channel steel is provided with a first extension end exposed out of the ends of the first wooden columns, the first extension end is connected with the U-shaped connecting assembly, and the U-shaped connecting assembly is connected with the composite beam structure. The second composite column comprises second wooden columns and special-shaped H-shaped steel, the two second wooden columns are connected in an attached mode through the special-shaped H-shaped steel, the special-shaped H-shaped steel is provided with second extension ends exposed out of the ends of the second wooden columns, the second extension ends are connected with the U-shaped connecting assemblies, the U-shaped connecting assemblies are connected with the composite beam structure, and the second extension ends are inserted into the corresponding first intervals. The overall assembly degree is high, and the steel-wood composite component and the steel component are organically combined, so that the mechanical property of the steel-wood composite component is good.

Description

Technical Field

[0001] The present invention relates to the technical field of modular steel-wood composite building structures, in particular to a modular steel-wood composite connection node structure. Background Art

[0002] Steel-wood composite structures have gradually become a hot topic of concern in the engineering and academic circles due to their advantages such as efficient construction, excellent quality, and environmental protection. Their notable features are light weight and high strength, and they can reasonably and effectively utilize the mechanical properties of steel and wood to improve the mechanical properties of steel-wood composite components, thereby improving the overall mechanical properties of the structure. In addition, they are easy to construct and can be quickly delivered for use. Steel-wood composite buildings are an important trend in the future development of green buildings and composite building structures. In addition, modular structures have gradually become a hot topic of concern in the engineering and academic circles due to their advantages such as efficient construction, excellent quality, and environmental protection. Their notable features are that all interior decoration of modular units is prefabricated in the factory, and they can be quickly delivered for use after the modules are connected at the construction site, reducing a large amount of construction environmental pollution while improving construction efficiency. This makes modular structural buildings also an important trend in the industrialization and green development of construction in recent years.

[0003] Whether it's a steel-wood composite structure or the connection structure between modular units, its reliability directly affects the overall performance of the structure. Once a node connection problem occurs, the structure will not function properly. In addition, the connection method should be designed to be reasonable, easy to construct, and able to reasonably and effectively utilize the mechanical properties of steel and wood. However, current research and development of steel-wood composite buildings mainly focuses on single components, such as steel-wood composite beams and steel-wood composite columns, and the connection method often uses additional steel plywood or steel filler plates and bolts. This undoubtedly increases the complexity of construction and makes the composite structure lack a certain degree of integrity, resulting in easy slippage between connected components and excessive local stress concentration. In addition, the above structure is not easy to disassemble and assemble. Summary of the Invention

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

[0005] In order to solve the above technical problems, the present invention provides a modular steel-wood composite connection node structure, including a plurality of first composite columns, a plurality of second composite columns, a plurality of U-shaped connection components, a plurality of composite beam structures and a plurality of locking members;

[0006] The first composite column includes two first wood columns and two channel steels, the first wood columns have a first matching groove, the channel steel is connected to the corresponding first wood columns through the first matching groove, the two first wood columns are fitted together, and a first gap is formed between the two channel steels, the channel steel has a first extension end exposed at both ends of the first wood columns, the first extension end is connected to the corresponding U-shaped connection assembly, and the U-shaped connection assembly is 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 special-shaped H-shaped steel. The second wooden column has a second matching groove. The two second wooden columns are connected by the special-shaped H-shaped steel. The special-shaped H-shaped steel has a second extension end exposed at both ends of the second wooden column. The second extension end is connected to the corresponding U-shaped connection component. The U-shaped connection component is connected to the corresponding composite beam structure through the locking piece to form a second composite module unit node. The second extension end is inserted into the corresponding first interval and is connected to the first composite module unit node through the locking piece.

[0008] Furthermore, the channel steel includes a first web and first flanges oppositely disposed on both sides of the first web, the first flanges being mounted in corresponding first mating grooves, the first web being provided with a plurality of first screw holes connected to the U-shaped connection assembly, and the first flanges being provided with a plurality of second screw holes connected to the U-shaped connection assembly;

[0009] The special-shaped H-shaped steel includes a second web and a second flange, the second web includes a connecting portion and an inserting portion, the two second flanges are relatively arranged on both sides of the second web to form a structure with an H-shaped cross-section, the two inserting portions are relatively arranged at both ends of the connecting portion, the second flange is installed in the corresponding second matching groove, a plurality of third screw holes connected to the U-shaped connecting component are opened on the second web, and a plurality of fourth screw holes connected to the U-shaped connecting component are opened on the second flange.

[0010] Furthermore, the cross-section of the first wooden column is rectangular, two first matching grooves are spaced apart along the length direction of the first wooden column, and the first matching groove penetrates the first wooden column along the height direction of the first wooden column, the depth of the first matching groove on one side away from the other first matching groove is twice the thickness of the first web than the depth on the other side, and the distance between the two first matching grooves is equal to the width of the first web;

[0011] The cross-section of the second wooden column is rectangular, the two second matching grooves are spaced apart along the length direction of the second wooden column, and the second matching groove penetrates the second wooden column along the height direction of the second wooden column, the depth of the second matching groove on one side away from the other second matching groove is twice the thickness of the second web than the depth on the other side, and the distance between the two second matching grooves is equal to the width of the second web.

[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 of the length of the first wooden column, and the width of the first flange is 0.4-0.6 of the width of the first web;

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

[0015] Further, the composite beam structure includes a first beam component, a second beam component and a third beam component;

[0016] The first beam assembly includes a first beam rectangular plate and a first H-shaped steel beam, the first H-shaped steel beam includes 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 the corresponding U-shaped connection assembly;

[0017] The second beam assembly includes a second beam rectangular plate and a second H-shaped steel beam, the second H-shaped steel beam includes 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 the corresponding U-shaped connection 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 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 the corresponding U-shaped connection assembly;

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

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

[0021] L1=H1+2l1=H1+2(2t+2t1+h)

[0022] Wherein: L1 is the height of the channel steel, H1 is the height of the first wooden column, l1 is the length of one end of the channel steel exposed from the first wooden column, t is the thickness of the first beam rectangular plate, t1 is the thickness of the third flange, and h is the height of the third web.

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

[0024] L2=H2+2(l2+l3)=H1+2(l1+l1)=H1+4(2t+2t1+h)

[0025] In the formula: L2 is the height of the special-shaped H-shaped steel, H2 is the height of the first wooden column, l2 is the length of the connecting portion exposed at one end of the second wooden column, l3 is the length of the inserted portion, t is the thickness of the first beam rectangular plate, t1 is the thickness of the third flange, and h is the height of the third web.

[0026] Furthermore, it also includes an ear plate connecting member, 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 is provided with a fifth screw hole connected to the first extension end or the second extension end, and the second ear plate is provided with a sixth screw hole connected to the corresponding composite beam structure.

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

[0028] The first U-shaped connector includes a sixth web and two sixth flanges, the two sixth flanges being oppositely arranged on either side of the sixth web, the sixth web being provided with a plurality of seventh screw holes, the sixth flanges being provided with a plurality of eighth screw holes, one of the sixth flanges being connected to the first extension end or the second extension end, and forming a second gap with the ear plate connector to allow 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 being oppositely arranged on either side of the seventh web, the seventh web being provided with a plurality of ninth screw holes, the seventh flanges being provided with a plurality of tenth screw holes, one of the seventh flanges being connected to the first extension end, and a third gap being formed between the other seventh flange and the seventh flange of the other second U-shaped connector; or one of the seventh flanges being connected to the second extension end, and a third gap being formed between the other seventh flange and the third U-shaped connector, the corresponding composite beam structure being inserted into the third gap to be connected to 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 relatively arranged on both sides of the eighth web, a plurality of eleventh screw holes are opened on the eighth flange, one of the eighth flanges is connected to the first extension end, and a third gap is formed between the other eighth flange and the seventh flange for the corresponding composite beam structure to be inserted and connected.

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

[0032] The embodiments of the present invention utilize bolted locking connections between the first and second timber columns, steel channels, special-shaped H-shaped steel, and U-shaped connecting components, all within the composite beam structure, as the interlayer connection method. This not only reduces the complexity of the notches associated with traditional mortise and tenon joints and bolted connections using steel filler plates / steel plywood, but also prevents excessive initial slippage between metal connectors such as nail pins and toothed plates and the timber components. Furthermore, this reduces the damage to the timber caused by irregular notches. Furthermore, the steel-wood composite structure effectively leverages the mechanical properties of both steel and timber, enhancing the axial compression, bending, and shear resistance of the columns and beams, thereby improving the mechanical properties of the joints and the overall structure. In addition, the above structures are mainly prefabricated in the factory and assembled on site, and the assembly of the first composite module unit node or the second composite module unit node and the connection assembly between the first composite module unit node or the second composite module unit node are all connection installations between steel components, with a high degree of assembly, and the thickness of the channel steel, special-shaped H-shaped steel, U-shaped connection component and the composite beam structure is relatively small, so that the workload of bolt installation is small, basically no deviation will occur and the installation is simple, which not only reduces the difficulty of workers' on-site operations, but also does not require high technical level of construction personnel, the construction quality is easier to guarantee, and it is easy to install, disassemble and recycle. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

[0037] Figure 5 Schematic diagram of the structure of the channel steel in the embodiment of the present invention;

[0038] Figure 6 In the embodiment of the present invention Figure 4 A partial enlarged view of the circled portion A;

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

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

[0041] Figure 9 This is a schematic structural diagram of the second wooden column in the embodiment of the invention;

[0042] Figure 10 Schematic diagram of the structure of the special-shaped H-shaped steel in the embodiment of the present invention;

[0043] Figure 11 2 is a schematic structural diagram of a first beam assembly in an embodiment of the present invention;

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

[0045] Figure 13 2 is a schematic structural diagram of a second beam assembly in an embodiment of the present invention;

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

[0047] Figure 15 2 is a schematic structural diagram of a second beam assembly in an embodiment of the present invention;

[0048] Figure 16 Schematic diagram of the structure of the third H-shaped steel beam in an embodiment of the present invention;

[0049] Figure 17 Schematic diagram of the structure of the ear plate connector in an embodiment of the present invention;

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

[0051] Figure 19 2 is a schematic structural diagram of a second U-shaped connector in an embodiment of the present invention;

[0052] Figure 20 2 is a schematic structural diagram of a third U-shaped connector in an embodiment of the present invention;

[0053] Figure 21 This is a schematic structural diagram of a first-stage assembly according to an embodiment of the present invention;

[0054] Figure 22 Schematic diagram of the structure of the second-stage assembly in an embodiment of the present invention;

[0055] Figure 23 Schematic diagram of the structure of the third-level assembly in an embodiment of the present invention;

[0056] Figure 24 This is an exploded schematic diagram of the fourth-level assembly assembly according to an embodiment of the present invention;

[0057] Figure 25 Schematic diagram of the structure of the fourth-level assembly in an embodiment of the present invention;

[0058] Figure 26 Schematic diagram of an explosion of a five-stage assembly according to an embodiment of the present invention;

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

[0060] Figure 28 Schematic diagram of the explosion of the sixth stage assembly in an embodiment of the present invention;

[0061] Figure 29 Schematic diagram of the structure of the sixth-stage assembly in an embodiment of the present invention;

[0062] Figure 30 2 is a schematic structural diagram of the seventh-stage assembly in an embodiment of the present invention;

[0063] Figure 31 An exploded schematic diagram of the upper and lower 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 structure in which the first composite module unit node and the second composite module unit node are assembled in accordance with an embodiment of the present invention;

[0065] Figure 33 An exploded schematic diagram of the assembly of the first composite module unit node and the seventh-level assembly according to an embodiment of the present invention;

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

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

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

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

[0070] 3. U-shaped connecting assembly; 31. First U-shaped connecting member; 311. Sixth web; 312. Sixth flange; 313. Seventh screw hole; 314. Eighth screw hole; 32. Second U-shaped connecting member; 321. Seventh web; 322. Seventh flange; 323. Ninth screw hole; 324. Tenth screw hole; 33. Third U-shaped connecting member; 331. Eighth web; 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 screw hole; 42. Second beam assembly; 421. Second beam rectangular plate; 422. Second H-beam; 4221. Fourth web; 4222. Fourth flange; 4223. Thirteenth screw hole; 43. Third beam assembly; 431. Third beam rectangular plate; 432. Third H-beam; 4321. Fifth web; 4322. Fifth flange; 4323. Fourteenth screw hole;

[0072] 5. Locking parts;

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

[0074] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limitations on the present invention. It should be noted that the height mentioned in this article is the dimension of the modular steel-wood composite connection node structure of this embodiment in the vertical direction under actual use conditions, the width is the dimension of the wide side in the horizontal direction of each component of the modular steel-wood composite connection node structure of this embodiment under actual use conditions, the length is the dimension of the long side in the horizontal direction of each component of the modular steel-wood composite connection node structure of this embodiment under actual use conditions, and the thickness is the dimension of the wall thickness of each component of the modular steel-wood composite connection node structure of this embodiment under actual use conditions.

[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 members 5; the first composite column 1 includes two first wood columns 11 and two channel steels 12, the first wood column 11 has a first matching groove 111 (as shown in FIG. Figure 4 As shown), the channel steel 12 is connected to the corresponding first wooden column 11 through the first matching groove 111, the two first wooden columns 11 are connected in a close fit, and there is a first interval 13 (as shown) between the two channel steels 12. Figure 2 As shown), the channel steel 12 has a first extension end 121 exposed at both ends of the first wooden column 11, and the first extension end 121 is connected to the corresponding U-shaped connection component 3. The U-shaped connection component 3 is connected to the corresponding composite beam structure 4 through a locking member 5 to form a first composite module unit node.

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

[0077] It should be noted that the locking member 5 of this embodiment is a bolt, the first wooden column 11 and the second wooden column 21 are wooden structures, and the U-shaped connection assembly 3 and the composite beam structure 4 are steel structures.

[0078] Based on the above structure, this embodiment utilizes a bolted connection between the first wood column 11, the second wood column 21, the channel steel 12, the special-shaped H-shaped steel 22, the U-shaped connection assembly 3, and the composite beam structure 4 as the interlayer connection method. This not only reduces the complexity of the notches used in traditional mortise and tenon joints and bolted connections with steel filler plates / steel plywood, but also avoids excessive initial slippage between metal connectors such as nail pins and toothed plates and the wood components. Simultaneously, it reduces the damage to the original wood caused by irregular notches. Furthermore, the steel-wood composite component effectively leverages the mechanical properties of both steel and wood, enhancing the axial compression, bending, and shear resistance of the columns and beams, thereby improving the mechanical properties of the joints and the overall structure. In addition, the above structures are mainly prefabricated in the factory and assembled on site, and the assembly of the first composite module unit node or the second composite module unit node and the connection assembly between the first composite module unit node or the second composite module unit node are all connection installations between steel components, with a high degree of assembly, and the thickness of the channel steel 12, the special-shaped H-shaped steel 22, the U-shaped connection component 3 and the composite beam structure 4 is relatively small, so that the workload of bolt installation is small, basically no deviation will occur and the installation is simple, which not only reduces the difficulty of workers' on-site operations, but also does not require high technical level of construction personnel, the construction quality is easier to guarantee, and it 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 opposite sides of the first web 122. The first flanges 123 increase the bending strength of the channel steel 12 and provide additional mounting surfaces. The first flanges 123 are mounted in corresponding first mating grooves 111. The first web 122 is provided with a plurality of first screw holes 124 for connection to the U-shaped connecting assembly 3, and the first flange 123 is provided with a plurality of second screw holes 125 for connection to the U-shaped connecting assembly 3. The shapes and quantities 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 disposed outside the central axis of the first web 122 on one side, and two circular second screw holes 125 are disposed outside the central axis of the first flange 123 on one side. The channel steel 12 is a thin-walled channel steel 12.

[0080] like Figure 10As shown, the H-shaped steel 22 includes a second web 222 and a second flange 223. The second web 222 includes a connecting portion 2221 and an insert portion 2222. Two second flanges 223 are positioned opposite each other on either side of the second web 222, forming an H-shaped cross-section. This structure increases the bending strength of the channel steel 12 and provides an additional mounting surface. The two insert portions 2222 are positioned opposite each other at the ends of the connecting portion 2221 and are inserted into the first spacer 13. They are connected by a locking member to enhance the connection strength between the first and second composite module unit nodes. The second flange 223 is mounted in the corresponding second mating groove 211. The second web 222 is provided with a plurality of third screw holes 224 for connection to the U-shaped connecting assembly 3. The second flange 223 is provided with a plurality of fourth screw holes 225 for connection to the U-shaped connecting assembly 3. The shape and number of the third and fourth screw holes 224, 225 can be adjusted according to performance requirements. In this embodiment, two circular third screw holes 224 are provided outside the central axis of the second web 222, and two circular fourth screw holes 225 are provided outside the central axis of the second flange 223. The special-shaped H-shaped steel 22 is a light H-shaped steel.

[0081] This embodiment, through the provision of channel steel 12 and special-shaped H-shaped steel 22, not only provides mounting surfaces for the various components of the first composite module unit node and the second composite module unit node, but also allows the various components of the first composite module unit node and the second composite module unit node to be tightly connected, forming a solid whole, avoiding the slippage problem that may occur in traditional connection methods. In addition, this embodiment uses a multi-point bolt connection method (such as the first screw hole 124, the second screw hole 125, the third screw hole 224, and the fourth screw hole 225), which helps to evenly distribute the load applied to the structure, reduce local stress concentration, and improve the safety and durability of the entire building structure.

[0082] It is understandable that this embodiment utilizes the bolt connection of the channel steel 12 and the special-shaped H-shaped steel 22 as the interlayer connection method, which not only reduces the complexity of the notches of the traditional mortise and tenon method and the steel filler plate / steel plywood bolt connection, but also reduces the damage to the original material of the wood caused by the irregular notches. It also avoids excessive initial slippage between metal connectors such as nail pins and tooth plates and wooden components. At the same time, the standardized component design makes on-site assembly simple and quick, reduces the dependence on complex tools and skilled workers, and improves construction efficiency. The 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 a variety of 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 cross-sectional shape of the first wooden column 11 is rectangular, the two first matching grooves 111 are spaced apart along the length direction of the first wooden column 11, and the first matching grooves 111 penetrate the first wooden column 11 along the height direction of the first wooden column 11, the depth of the first matching groove 111 on one side away from the other first matching groove 111 is twice the thickness of the first web 122 than the depth on the other side, and the distance between the two first matching grooves 111 is equal to the width D1 of the first web 122, ensuring that the channel steel 12 can be embedded in the first wooden column 11; it can be understood that the two first wooden columns 11 and the two channel steels 12 are connected by gluing or riveting or gluing and rivet connection to form a first composite column. In this embodiment, the two first wooden columns 11 and the two channel steels 12 are bonded together to form a first composite column.

[0084] like Figure 8 and Figure 10 As shown, the cross-section of the second wooden column 21 is rectangular, and two second mating grooves 211 are spaced apart along the length of the second wooden column 21. The second mating grooves 211 penetrate the second wooden column 21 along the height of the second wooden column 21. The depth of the second mating groove 211 on one side away from the other second mating groove 211 is twice the thickness of the second web 222 than the depth on the other side. The distance between the two second mating grooves 211 is equal to the width D2 of the second web 222, ensuring that the special-shaped H-shaped steel 22 can be embedded in the second wooden column 21. It can be understood that the two second wooden columns 21 and the special-shaped H-shaped steel 22 are connected by gluing or riveting, or gluing and riveting to form a second composite column. In this embodiment, the two second wooden columns 21 and the special-shaped H-shaped steel 22 are bonded together to form the second composite column.

[0085] By limiting the dimensions of the first and second mating grooves 111, 211, this embodiment ensures that the channel steel 12 and the special-shaped H-shaped steel 22 can be securely fixed within the first and second wooden columns 11, 21, respectively, thereby increasing the stability of the overall structure. Furthermore, by limiting the depth and spacing of the first and second mating grooves 111, 211, the channel steel 12 and the special-shaped H-shaped steel 22 can be embedded within the wooden first and second wooden columns 11, 21. This leverages the high strength of steel and the excellent workability of wood, achieving a more optimal material combination.

[0086] Furthermore, the first spacer 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 spacer 13, there is sufficient space to ensure the stability of the connection between the insertion portion 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 5As shown, the width D3 of the first flange 123 of the channel steel 12 and the width D1 of the first web 122 are smaller than the length L3 of the first wood column 11. These dimensions are selected based on actual engineering performance requirements. The width D1 of the first web 122 is 0.5-0.7 of the length L3 of the first wood column 11. This ensures that, in buildings of varying sizes, the first web 122 provides sufficient support area to withstand vertical and horizontal loads while maintaining a lightweight structure. The width D3 of the first flange 123 is 0.4-0.6 of the width D1 of the first web 122, which helps enhance the overall structural bending stiffness and stability. The wider first flange 123 increases the cross-sectional moment of inertia, thereby improving the component's ability to resist bending deformation.

[0088] Preferably, the width D1 of the first web 122 is approximately 2 / 3 of the length L3 of the first wooden column 11, the width D3 of the first flange 123 is equal to 1 / 2 of the width L3 of the first web 122, and the width D3 of the first flange 123 is equal to the width D1 of the first web 122 minus twice the thickness of the first web 122, ensuring that the connection between the first flange 123 and the first web 122 has sufficient thickness to avoid local damage due to stress concentration, while also ensuring a smooth transition between the first web 122 and the first flange 123, reducing stress concentration points, and improving the overall durability and safety of the structure.

[0089] like Figure 8 and Figure 10 As shown, the width D4 of the second flange 223 of the H-shaped steel 22 and the width D2 of the second web 222 are smaller than the length L4 of the second timber column 21. These dimensions are selected based on the actual engineering performance requirements. The width D2 of the second web 222 is 0.5-0.7 of the length L4 of the second timber column 21, which helps enhance the bending stiffness and stability of the overall structure. The wider second flange 223 increases the moment of inertia of the section, thereby improving the component's resistance to bending deformation. Preferably, the width D2 of the second web 222 is approximately two-thirds of the length L4 of the second timber column 21. The width D4 of the second flange 223 is 0.4-0.6 of the width D2 of the second web 222, which helps to enhance the bending resistance of the structure, making the entire component more stable and less prone to deformation. Preferably, the width D4 of the second flange 223 is equal to 1 / 2 of the width D2 of the second web 222, and the width D4 of the second flange 223 is equal to the width D2 of the second web 222 minus twice the thickness of the second web 222, ensuring a good transition between the second flange 223 and the second web 222, reducing stress concentration points, and improving the overall durability and safety of the structure.

[0090] Furthermore, the composite beam structure 4 includes a first beam component 41 , a second beam component 42 and a third beam component 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 and high-strength materials, and is used to enhance the overall stiffness and 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 relatively arranged on both sides of the third web 4121 to form an H-shaped cross-section, which enhances the bending resistance of the first H-shaped steel beam 412, wherein the third web 4121 mainly bears shear force, and the third flange 4122 is 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-shaped steel 22 through the corresponding U-shaped connection assembly 3.

[0092] The length of the first beam rectangular plate 411 is consistent with the length of the first H-shaped steel beam 412. The end of the third web 4121 of the first H-shaped steel beam 412 is provided with a twelfth screw hole 4123. The third flanges 4122 on both sides are connected to the first beam rectangular plate 411 by gluing or riveting, or gluing and riveting to form the first beam assembly 41. In this embodiment, the first beam rectangular plate 411 and the first H-shaped steel beam 412 are glued together to form the first beam assembly 41. The width D5 of the third flange 4122 of the first H-shaped steel beam 412 is equal to the width D2 of the second web 222 of the special-shaped H-shaped steel 22. Preferably, the cross-sectional structural dimensions of the first H-shaped steel beam 412 are consistent with those of the special-shaped H-shaped steel 22. In actual application, it is also necessary to determine the dimensions according to actual engineering needs, and the dimensions 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 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-shaped steel beam 422. The second H-shaped steel beam 422 includes a fourth web 4221 and two fourth flanges 4222. The two fourth flanges 4222 are relatively arranged on both sides of the fourth web 4221. The second beam rectangular plate 421 is connected to the fourth flange 4222. The fourth web 4221 is connected to one side of the channel steel 12 or the special-shaped H-shaped steel 22 through the corresponding U-shaped connection assembly 3.

[0094] The length of the second beam rectangular plate 421 is consistent with the length of the second H-shaped steel beam 422. The width of the second beam rectangular plate 421 is consistent with the width of the second H-shaped steel 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 wood column 11 parallel to the first web 122, or equal to the distance from the second web 222 of the special-shaped H-shaped steel 22 to the long side of the second wood column 21 parallel to the second web 222. The cross-sectional area of ​​the second beam rectangular plate 421 and the second H-shaped steel beam 422 is equal to the width of the second H-shaped steel beam 422. The surface dimensions are respectively consistent with those of the first beam rectangular plate 411 and the first H-shaped steel beam 412. Thirteenth screw holes 4223 are provided at the ends on both sides of the fourth web 4221 of the second H-shaped steel beam 422. The fourth flanges 4222 on both sides are connected with the two second beam rectangular plates 421 by gluing or rivets or gluing and rivet connection to form a second beam assembly 42. In this embodiment, the second beam rectangular plate 421 and the second H-shaped steel beam 422 are bonded together to form the second beam assembly 42.

[0095] like Figure 15 and Figure 16 As 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 4321 and two fifth flanges 4322. The two fifth flanges 4322 are relatively arranged on both sides of the fifth web 4321. The third beam rectangular plate 431 is connected to the fifth flange 4322. The fifth web 4321 is connected to one side of the channel steel 12 or the special-shaped H-shaped steel 22 through the corresponding U-shaped connection assembly 3.

[0096] The width of the third beam rectangular plate 431 is consistent with 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 consistent with the dimensions of the first beam rectangular plate 411 and the first H-shaped steel beam 412, respectively. A fourteenth screw hole 4323 is provided in the middle of the fifth web 4321 of the third H-shaped steel beam 432. The fifth flanges 4322 on both sides are connected to the third beam rectangular plate 431 by gluing or rivets, or gluing and rivet connection 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 bonded together to form the third beam assembly 43.

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

[0098] This embodiment combines rectangular beam plates with H-shaped steel beams, leveraging the high tensile strength of steel and the excellent compressive properties of wood. This results in a composite beam structure 4 that is both strong and resilient. The modular design allows these components to be prefabricated in a factory and then quickly assembled on-site, significantly improving construction efficiency and reducing on-site workload. The H-shaped steel beam structure effectively distributes loads and reduces localized stress concentrations. Furthermore, the U-shaped connection components 3 provide a stable node connection, enhancing the safety and reliability of the overall building. By selecting beams of varying lengths, the system can flexibly meet various architectural design requirements, accommodating both large spans and small spaces.

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

[0100] L1=H1+2l1=H1+2(2t+2t1+h)

[0101] Wherein: L1 is the height of the channel steel 12, H1 is the height of the first wooden column 11, l1 is the length of one end of the channel steel 12 exposed from the first wooden column 11, t is the thickness of the first beam rectangular plate 411, t1 is the thickness of the third flange 4122, and h is the height of the third web 4121.

[0102] This formula ensures that the channel steel 12 can not only completely cover the height of the first wooden column 11, but also provide sufficient extension length for external connection. Taking into account key dimensions such as the first beam rectangular plate 411, the third flange 4122 of the first H-shaped steel beam 412, and the third web 4121, it helps to optimize material use, avoid waste, and ensure structural safety. In addition, it can ensure the matching between the channel steel 12 and other components (such as the composite beam structure 4 and the U-shaped connection component 3), thereby enhancing the stability and safety of the overall structure. It should be noted that the length of the channel steel 12 exposed at one end of the first wooden column 11 in this embodiment can also be understood as the height of the channel steel 12 exposed at one end of the first wooden column 11.

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

[0104] L2=H2+2(l2+l3)=H1+2(l1+l1)=H1+4(2t+2t1+h)

[0105] Wherein: L2 is the height of the special-shaped H-shaped steel 22, H2 is the height of the first wooden column 11, l2 is the length of the connecting portion 2221 exposed at one end of the second wooden column 21, l3 is the length of the inserted portion 2222, t is the thickness of the first beam rectangular plate 411, t1 is the thickness of the third flange 4122, and h is the height of the third web 4121.

[0106] This formula ensures that the special-shaped H-shaped steel 22 can not only adapt to the height of the second wooden column 21, but also provide sufficient exposed length at both ends for easy connection. Taking into account key dimensions such as the first beam rectangular plate 411, the third flange 4122 of the first H-shaped steel beam 412, and the third web 4121, it helps to optimize material use, avoid waste, and ensure structural safety. In particular, with respect to the length of the insertion portion 2222, it ensures that the special-shaped H-shaped steel 22 can be firmly inserted into the corresponding first interval 13, thereby increasing the stability of the entire node. It should be noted that the length of the end of the connecting portion 2221 exposed from the second wooden column 21 of this embodiment can also be understood as the height of the end of the connecting portion 2221 exposed from the second wooden column 21, and the length of the insertion portion 2222 can also be understood as the height of the insertion portion 2222.

[0107] See also Figure 17 , also includes an ear plate connector 6, the ear plate connector 6 includes a first ear plate 61 and a second ear plate 62, the first ear plate 61 is connected to the second ear plate 62, and is at a right angle to form an L-shaped structure; the first ear plate 61 is provided with a fifth screw hole 63 connected to the first extension end 121 or the second extension end 221, and the bolt is passed through the fifth screw hole 63 and tightened to ensure that the ear plate connector 6 is firmly attached to the first extension end 121 or the second extension end 221; the second ear plate 62 is provided with a sixth screw hole 64 connected to the corresponding composite beam structure 4, and the second ear plate 62 is connected to the corresponding position on the composite beam structure 4 (for example, the fifth web 4321 of the third H-shaped steel beam 432) by bolts, 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 sizes 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 lug connectors 6. Furthermore, multiple fifth and sixth screw holes 63 and 64 provide more fixing points, effectively enhancing the stability and load-bearing capacity of the overall structure. The pre-positioned fifth and sixth screw holes 63 and 64 in the lug connectors 6 allow for more precise alignment of the components 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 of this embodiment are made of rectangular thin steel sheets and 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 4121 of the first H-shaped steel beam 412.

[0110] Furthermore, the U-shaped connection assembly 3 includes a first U-shaped connection member 31 , a second U-shaped connection member 32 and a third U-shaped connection member 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 on both sides of the sixth web 311, a plurality of seventh screw holes 313 are opened on the sixth web 311, and a plurality of eighth screw holes 314 are opened on the sixth flange 312. 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 the ear plate connector 6 for the corresponding composite beam structure 4 (such as the first beam component 41 and the third beam component 43) to be inserted and connected; the sixth web 311 and the sixth flange 312 are made of rectangular thin steel sheets and can be formed by machine rolling or high-frequency welding. The width of the sixth web 311 is equal to that of the fifth web of the third H-shaped steel beam 432 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 heights 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 sizes and positions 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 relatively arranged on both sides of the seventh web 321, a plurality of ninth screw holes 323 are opened on the seventh web 321, and a plurality of tenth screw holes 324 are opened on the seventh flange 322, one seventh flange 322 is connected to the first extension end 121, and a third interval is formed between the other seventh flange 322 and the seventh flange 322 of the other second U-shaped connector 32; or, one seventh flange 322 is connected to the second extension end 221, and a third interval is formed between the other seventh flange 322 and the third U-shaped connector 33, and the corresponding composite beam structure 4 (such as the second beam component 42) is inserted in the third interval to be connected to the second U-shaped connector 32 and / or the third U-shaped connector 33; the seventh web 321 and the seventh flange 322 are formed by a rectangular It is made of thin steel sheet and 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-shaped steel 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 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. 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 each other with 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 relatively arranged on both sides of the eighth web 331. A plurality of eleventh screw holes 333 are provided on the eighth flange 332. One eighth flange 332 is connected to the first extension end 121. A fourth gap is formed between the other eighth flange 332 and the seventh flange 322 for insertion and connection of the corresponding composite beam structure 4. 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-shaped steel 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 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. 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 uses a combination of different types of U-shaped connection components 3. According to specific engineering requirements, appropriate types of U-shaped connection components 3 and their combination methods can be selected to meet different building forms and functional requirements, thereby improving installation flexibility, making on-site installation simpler and faster, reducing the need for complex processes, and improving work efficiency. It can also provide stable support 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 in multiple directions, ensuring the stability and safety of the entire building structure. In addition, the mutual cooperation between the various U-shaped connection components 3 not only enhances the stiffness at the node, but also improves the overall performance of the entire structural system and prevents damage caused by local stress concentration. Since the connection between the U-shaped connection component 3 and other components adopts a detachable structure, when maintenance or modification is required, the relevant components can be easily replaced or adjusted by loosening the corresponding bolts, reducing the subsequent management costs.

[0115] It is understandable that when the structure is a temporary building, especially a temporary building or exhibit with a small span, ordinary glue that is easy to detach 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 the disassembly and reuse of the structure. Of course, the design of the premise node can meet the structural performance. In the case where the structure needs to be fixed for a long time, it is necessary to use a structural adhesive with engineering applicability or a combination of nails. When the node area still needs additional reinforcement, carbon fiber cloth can be used for wrapping and pasting for reinforcement. Since the cross-section of the first wooden column 11 and the second wooden column 21 is a regular rectangle, it is also convenient for the contact and winding of the carbon fiber cloth. The bolt area can be reinforced with a small area of ​​open screw hole steel plate, which is also convenient and quick, and is conducive to the reuse of the node and extends the service life of the structure. In addition, due to the regular structure of the node, it is also conducive to decorative design of the node appearance.

[0116] The first matching groove 111 and the second matching groove 211 have regular rectangular cross-sections. Compared with the traditional wooden mortise and tenon joint wooden grooves and the currently commonly used wooden structure steel filling plates / steel plywood bolt connections, their manufacturing simplicity is greatly improved, and the time and manpower required for the manufacturing of the first matching groove 111 and the second matching groove 211 are reduced. In addition, the use of the steel-wood structure of the first composite column 1 and the second composite column 2 can better exert the material properties of wood and steel, improve the basic mechanical properties of beams and columns - axial compression, bending resistance and shear resistance, etc., thereby improving the overall performance of the structure.

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

[0118] Step 1: Use bolts to 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 122 and the first flange 123 of the channel steel 12 respectively to form a first-level assembly, such as Figure 21 As shown;

[0119] Step 2: Use bolts to 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 special-shaped H-shaped steel 22 to form a second-level assembly, such as Figure 22 As shown;

[0120] Step 3: Use bolts to connect the ear plate connector 6 to the fourth web 4221 of the second H-shaped steel beam 422 to form a third-level assembly. Figure 23 shown.

[0121] Step 4: Use bolts to connect the first level assembly with the first H-shaped steel beam 412, the second H-shaped steel beam 422 and the third H-shaped steel beam 432 to form the fourth level assembly - the first composite module unit node, such as Figure 24 and25 shown.

[0122] Step 5: Use bolts to connect the second level assembly with the first H-shaped steel beam 412, the second H-shaped steel beam 422 and the third H-shaped steel beam 432 to form the fifth level assembly - the second composite module unit node, such as Figure 26 and 27 shown.

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

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

[0125] Step 8: Hoist the single first composite module unit node from top to bottom and insert it on the insertion part 2222 of the special-shaped H-shaped steel 22 of the second composite module unit node in the four-module steel-wood composite node, and connect it with bolts and the second U-shaped connector 32 to form the eighth-level assembly - the five-module steel-wood composite node, as shown in FIG. Figures 31-34 As shown, Figure 31 and 32 This is a structural diagram of a single first composite module unit node and a single second composite module unit node being hoisted and installed up and down.

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

[0127] The above steps can better complete the assembly of the present invention, but are not limited to the above steps. Appropriate adjustments can still easily complete the assembly process. For example, the ear plate connector 6 on the second H-shaped steel beam 422 is not installed first, but is installed when the modular unit steel-wood composite beam-column node is assembled, or the ear plate connector 6 is first installed on the third web 4121 of the first H-shaped steel beam 412 or the fifth web 4321 of the third H-shaped steel beam 432 using bolts and then the modular unit steel-wood composite beam-column node is assembled.

[0128] Not limited to the construction steps, due to the presence of the insertion portion 2222 of the special-shaped H-shaped steel 22, it is inconvenient to use a conventional beam parallel to the ground during transportation. Therefore, it is recommended to use a second composite column 2 parallel to the ground or to install a detachable or disposable protective tool (such as square foam, wooden trough or wrapped anti-slip pad, etc.) 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, a 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 an overly long insertion portion 2222 does not need to be reserved.

[0129] The modular steel-wood composite connection node structure and construction method provided by the present invention provide two new types of steel-wood composite columns, namely, a first composite column 1 and a second composite column 2 formed by using a channel steel 12 and a rectangular first wood column 11, a special-shaped H-shaped steel 22 and a rectangular second wood column 21, and a steel-wood composite beam composed of a rectangular wooden board and a light H-shaped steel (such as a first beam rectangular plate 411 and a first H-shaped steel beam 412, etc.). The bolt connection between the web and flange (such as a third web 4121 and a third flange 4122, etc.) of the channel steel 12 and the light H-shaped steel is mainly used as the connection method between the various components in the modular unit beam column (such as the first composite modular unit node and / or the second composite modular unit node) and the modular unit node (such as the first composite modular unit node and / or the second composite modular unit node). This not only reduces the complexity of the notches of the traditional mortise and tenon method and the steel filler plate / steel plywood bolt connection, but also reduces the damage to the original material of the wood caused by the irregular notch. It also avoids excessive initial slippage between metal connectors such as nail pins and tooth plates and wooden components.

[0130] Furthermore, the steel-wood composite beam-column structure effectively leverages the mechanical properties of steel and wood, improving the axial compression, bending, and shear resistance of the columns and beams. Architecturally, it saves space and is aesthetically pleasing, with simple connections and easier installation. The steel and wood components that make up the modular unit nodes can all be prefabricated in the factory, with on-site construction primarily based on assembly. The installation process is simple, with few steps and minimal bolt installation, significantly reducing additional labor. Disassembly requires simply reversing the assembly process, which is simple and convenient, without causing unnecessary damage to the wood components, and facilitates the reuse 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-shaped steel and thin steel plates for connection, the number of layers still needs to be further determined or the use of beams with larger cross-sectional dimensions and thicker steel plate connectors is required. In addition, for the connection between beams between different columns, a modular steel-wood composite beam-column connection method (such as the first composite column 1 and the composite beam structure 4) can also be used. That is, the composite beam structure 4 has holes at the end and uses flat-section thin steel plates and T-shaped thin steel plate connectors to connect double beams, triple beams, and quad beams.

[0132] In summary, the embodiments of the present invention provide a modular steel-wood composite connection node structure that effectively leverages the mechanical properties of steel and wood, improving the axial compression, bending, and shear resistance of columns and beams. Bolt holes are pre-set on each component, and the connections between different components are all high-strength bolt connections. This effectively solves the difficulty of connecting and installing the last module in the middle node of an eight-module structure, improves construction convenience, and minimizes environmental impact during construction. Furthermore, this modular steel-wood composite connection node structure facilitates inspection, disassembly, replacement, and reinforcement of various components during long-term use of the building structure, facilitating the reuse of the node and extending the service life of the structure. Disassembly requires only reversing the assembly process, allowing for disassembly into individual assembled components. This is simple and convenient, without causing unnecessary damage to the wooden components, and facilitates the recycling of temporary steel-wood composite buildings. Furthermore, 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 actual engineering design and construction, and is environmentally friendly and energy-saving. Furthermore, the node is easy to disassemble, inspect, reinforce, and recycle, better meeting the requirements of current green buildings and possessing excellent practical value.

[0133] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A modular steel-wood composite connection node structure, characterized in that: It includes a plurality of first composite columns, a plurality of second composite columns, a plurality of U-shaped connection components, a plurality of composite beam structures, and a plurality of locking members; The first composite column includes two first wood columns and two channel steels, the first wood columns have a first matching groove, the channel steel is connected to the corresponding first wood columns through the first matching groove, the two first wood columns are fitted together, and a first gap is formed between the two channel steels, the channel steel has a first extension end exposed at both ends of the first wood columns, the first extension end is connected to the corresponding U-shaped connection assembly, and the U-shaped connection assembly is connected to the corresponding composite beam structure through the locking member to form a first composite module unit node; The second composite column includes two second wooden columns and special-shaped H-shaped steel. The second wooden column has a second matching groove. The two second wooden columns are connected by the special-shaped H-shaped steel. The special-shaped H-shaped steel has a second extension end exposed at both ends of the second wooden column. The second extension end is connected to the corresponding U-shaped connection component. The U-shaped connection component is connected to the corresponding composite beam structure through the locking piece to form a second composite module unit node. The second extension end is inserted into the corresponding first interval and is connected to the first composite module unit node through the locking piece.

2. The modular steel-wood composite connection node structure according to claim 1, characterized in that: The channel steel includes a first web and first flanges oppositely disposed on both sides of the first web, the first flanges being mounted in corresponding first matching grooves, a plurality of first screw holes for connecting to the U-shaped connecting assembly being formed on the first web, and a plurality of second screw holes for connecting to the U-shaped connecting assembly being formed on the first flanges; The special-shaped H-shaped steel includes a second web and a second flange, the second web includes a connecting portion and an inserting portion, the two second flanges are relatively arranged on both sides of the second web to form a structure with an H-shaped cross-section, the two inserting portions are relatively arranged at both ends of the connecting portion, the second flange is installed in the corresponding second matching groove, a plurality of third screw holes connected to the U-shaped connecting component are opened on the second web, and a plurality of fourth screw holes connected to the U-shaped connecting component are opened on the second flange.

3. The modular steel-wood composite connection node structure according to claim 2, characterized in that: The cross-section of the first wooden column is rectangular, two first matching grooves are spaced apart along the length direction of the first wooden column, and the first matching groove penetrates the first wooden column along the height direction of the first wooden column, the depth of the first matching groove on one side away from the other first matching groove is twice the thickness of the first web than the depth on the other side, and the distance between the two first matching grooves is equal to the width of the first web; The cross-section of the second wooden column is rectangular, the two second matching grooves are spaced apart along the length direction of the second wooden column, and the second matching groove penetrates the second wooden column along the height direction of the second wooden column, the depth of the second matching groove on one side away from the other second matching groove is twice the thickness of the second web than the depth on the other side, and the distance between the two second matching grooves is equal to the width of the second web.

4. The modular steel-wood composite connection node structure according to claim 2, characterized in that: The first interval is greater than or equal to the thickness of the second web.

5. The modular steel-wood composite connection node structure according to claim 2, characterized in that: The width of the first web is 0.5-0.7 of the length of the first wooden 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 wooden column, and the width of the second flange is 0.4-0.6 of the width of the second web.

6. The modular steel-wood composite connection node structure according to claim 2, characterized in that: The composite beam structure includes a first beam component, a second beam component and a third beam component; The first beam assembly includes a first beam rectangular plate and a first H-shaped steel beam, the first H-shaped steel beam includes 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 the corresponding U-shaped connection assembly; The second beam assembly includes a second beam rectangular plate and a second H-shaped steel beam, the second H-shaped steel beam includes 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 the corresponding U-shaped connection assembly; 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 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 the corresponding U-shaped connection assembly; The length of the first beam component is greater than the length of the second beam component, and the length of the second beam component is greater than the length of the third beam component.

7. The modular steel-wood composite connection node structure according to claim 6, characterized in that: The height of the channel steel should meet the following conditions: L1=H1+2l1=H1+2(2t+2t1+h) Wherein: L1 is the height of the channel steel, H1 is the height of the first wooden column, l1 is the length of one end of the channel steel exposed from the first wooden column, t is the thickness of the first beam rectangular plate, t1 is the thickness of the third flange, and h is the height of the third web.

8. The modular steel-wood composite connection node structure according to claim 6, characterized in that: The height of the special-shaped H-beam should meet the following conditions: L2=H2+2(l2+l3)=H1+2(l1+l1)=H1+4(2t+2t1+h) In the formula: L2 is the height of the special-shaped H-shaped steel, H2 is the height of the first wooden column, l2 is the length of the connecting portion exposed at one end of the second wooden column, l3 is the length of the inserted portion, t is the thickness of the first beam rectangular plate, t1 is the thickness of the third flange, and h is the height of the third web.

9. The modular steel-wood composite connection node structure according to claim 1 or 6, characterized in that: It also includes an ear plate connecting member, 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 is provided with a fifth screw hole connected to the first extension end or the second extension end, and the second ear plate is provided with a sixth screw hole connected to the corresponding composite beam structure.

10. The modular steel-wood composite connection node structure according to claim 9, characterized in that: The U-shaped connection assembly includes a first U-shaped connection piece, a second U-shaped connection piece, and a third U-shaped connection piece; The first U-shaped connector includes a sixth web and two sixth flanges, the two sixth flanges being oppositely arranged on either side of the sixth web, the sixth web being provided with a plurality of seventh screw holes, the sixth flanges being provided with a plurality of eighth screw holes, one of the sixth flanges being connected to the first extension end or the second extension end, and forming a second gap with the ear plate connector to allow the corresponding composite beam structure to be inserted and connected; The second U-shaped connector includes a seventh web and two seventh flanges, the two seventh flanges being oppositely arranged on either side of the seventh web, the seventh web being provided with a plurality of ninth screw holes, the seventh flanges being provided with a plurality of tenth screw holes, one of the seventh flanges being connected to the first extension end, and a third gap being formed between the other seventh flange and the seventh flange of the other second U-shaped connector; or one of the seventh flanges being connected to the second extension end, and a third gap being formed between the other seventh flange and the third U-shaped connector, the corresponding composite beam structure being inserted into the third gap to be connected to the second U-shaped connector and / or the third U-shaped connector; The third U-shaped connector includes an eighth web and two eighth flanges, the two eighth flanges are relatively arranged on both sides of the eighth web, a plurality of eleventh screw holes are opened on the eighth flange, one of the eighth flanges is connected to the first extension end, and a third gap is formed between the other eighth flange and the seventh flange for the corresponding composite beam structure to be inserted and connected.

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