A hybrid modular structure system of extruded aluminum-wood double-slot type connection with special-shaped cross section

Abstract

The present application relates to a kind of extruded aluminum-wood double-slot type connection's modular structure system of special section, adopt double-slot type connection to form aluminum-wood combination structure module system, and realize the quick splicing between module by cast aluminum piece insertion.The frame member of the aluminum-wood combination structure module unit adopts aluminum alloy extruded special section.Frame node adopts double-slot type connection node, the node is connected by groove with extruded special section frame column using double-slot card, double-slot card is formed by two grooves and a section of vertical plate extrusion, vertical plate is holed, and is connected with frame beam using stainless steel bolt.Frame beam is connected with double-slot card before, and the slot of identical size with double-slot card vertical plate is opened, double-slot card vertical plate is inserted into frame beam, and double-slot card vertical plate is connected with frame beam by stainless steel bolt.

Description

Technical Field

[0001] This invention pertains to the field of building engineering and relates to a rapid assembly modular aluminum-wood hybrid structural system. Specifically, it relates to a structural form of the building that allows for rapid construction and the addition or removal of hybrid structural modular units, as well as its assembly and construction method. Background Technology

[0002] Currently, modular buildings utilize hybrid structural systems including steel-concrete hybrid, concrete-wood hybrid, and steel-wood hybrid structures. While steel-concrete hybrid structures are widely used in engineering practice, the concrete, as the primary lateral force resisting structure, requires on-site casting, preventing factory prefabrication and thus not fully realizing modular design and construction. Concrete-wood hybrid structures often employ wood-concrete composite floor slabs, achieving a hybridity at the component level. From a stress perspective, concrete has strong compressive strength, while wood has strong tensile and bending strength. However, when these two materials are combined, the anti-bonding and shear resistance guarantees are weak, and currently, there are no suitable shear-resistant connectors to ensure coordinated stress distribution. Steel-wood hybrid structures mainly use steel-wood composite floor slabs and wood shear wall structures, allowing for rapid assembly. However, the deformation capabilities of the two materials differ significantly, leading to asynchronous deformation of wood and steel components. This results in high requirements for joint connections between steel and wood, and effective connections still require further research. Furthermore, when connecting wood shear walls to steel frames, complete assembly cannot be effectively achieved, resulting in the overall structural performance failing to meet design requirements after installation. The modular hybrid structures described above all limit the widespread application of modular buildings to some extent.

[0003] Therefore, this invention proposes a modular aluminum-wood hybrid structure system. Wood's greatest advantage is its renewability and sustainable use, which can significantly reduce carbon emissions, making it the best material for carbon storage in the construction field. Aluminum, with its high recyclability, low recycling cost, corrosion resistance, maintenance-free operation, lightweight yet high strength, and reusability, is increasingly used in structural engineering. Aluminum alloy components and nodes can be prefabricated in batches and then assembled. This production model is well-suited for assembled structures and has good applicability to aluminum alloy structures with a large number of repetitive members and nodes. This can significantly improve installation speed and reduce construction time. Aluminum alloy materials have high plasticity, allowing for the extrusion molding of profiles with various complex cross-sections and shapes that cannot be produced by hot rolling and welding, resulting in more rational cross-sectional forms. Furthermore, the deformation of aluminum alloy is basically consistent with that of wood, enabling the two materials to achieve deformation coordination and reducing the performance requirements of modular connection nodes. In addition, aluminum and wood structures comply with carbon emission and life-cycle assessments, which is of great significance for energy conservation, emission reduction, and lower building energy consumption.

[0004] Currently, aluminum-wood hybrid structures are not yet used in modular buildings, and no efficient joints suitable for connecting the two have been found. The connection performance of modular buildings directly affects their overall structural stability and strength. Furthermore, when connecting modules, limited operating space is frequently encountered, often requiring the disassembly of existing modules to accommodate new ones, significantly restricting modular construction.

[0005] To address the above issues, this invention proposes an aluminum-wood hybrid system, involving novel connection methods such as double-slot connection node technology, cast aluminum component connection, slotted aluminum-wood floor slab technology, and aluminum-wood shear wall connection technology to effectively connect the two materials, enhance the combined effect of the hybrid structure, solve the problems existing in the installation of the aforementioned modular structures, and enhance the overall integrity of the modular building. Summary of the Invention

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A modular structural system using extruded irregular-section aluminum-wood double-slot connection. The modular unit includes: an aluminum structural frame, wooden floor slabs, and plywood shear walls. The aluminum structural frame beams and columns utilize extruded irregular-section aluminum components (hereinafter referred to as frame columns), with double-slot connection nodes at the beam-column joints. The wooden floor slabs consist of wooden joists and wooden floor covering panels, with the frame beams connected to the wooden joists via double-layer connecting clips. The plywood shear walls are connected to the extruded irregular-section frame columns using single-panel clips, and to the frame beams using integrated aluminum alloy single (double) cross-shaped cast connectors. Modular units are connected via cast aluminum plug-in joints.

[0008] Furthermore, the double-slot connection node uses a double-slot clip to connect with the frame column through a groove. The double-slot clip is formed by extruding two grooves and a vertical plate together. The vertical plate has holes and is connected to the frame beam with stainless steel bolts.

[0009] Furthermore, when connecting the double-slot joint to the frame beam, the upper flange of the beam is slotted, with a width consistent with the thickness of the vertical plate of the double-slot fitting. When connecting the frame beam and column, the double-slot fitting is first secured to the frame column through the interlocking grooves, and then the frame beam with the upper flange slotted is inserted into the vertical plate of the double-slot fitting. The vertical plate is then connected to the frame beam using stainless steel bolts, thus avoiding the reduction in component strength caused by welding and the weakening of the frame column cross-section caused by bolted connections.

[0010] Furthermore, the plywood shear wall consists of main wall studs on both sides and OSB (organic steel sheet) cladding panels, with the main wall studs symmetrically arranged on both sides of the plywood shear wall cladding panels. When connecting the plywood shear wall to the frame columns, it is connected via single-panel clips and double-slot connection nodes. The vertical plates of the single-panel clips have openings and are connected to the plywood shear wall cladding panels using structural nails. Furthermore, the spacing between these single-panel clips is between 900mm and 1200mm.

[0011] Furthermore, when the plywood shear wall is connected to the frame beam, an integrated aluminum alloy cross-shaped cast connector is used. This integrated aluminum alloy cross-shaped cast connector consists of a C-shaped plate and a cross-shaped plate, cast in one piece, avoiding welding. The wall studs of the plywood shear wall have cross-shaped grooves that fit tightly with the cross-shaped plate, and the C-shaped plate of the integrated aluminum alloy cross-shaped cast connector is connected to the frame beam.

[0012] Furthermore, holes are drilled in the two vertical plates of the C-shaped plate, and after being clamped to the frame beam, they are connected by stainless steel bolts. An integrated aluminum alloy cross-shaped cast connector is installed every other wooden joist.

[0013] Furthermore, at the splicing position of the plywood shear wall, an integrated aluminum alloy double cross-shaped cast connector is used for connection. The difference between this integrated aluminum alloy double cross-shaped cast connector and the integrated aluminum alloy cross-shaped cast connector is that two sets of cross-shaped plates are set on the plate, which are respectively clamped to the two wall studs at the splicing position.

[0014] Furthermore, the plywood shear wall edge banding is reinforced with plywood shear wall fixing angle steel between the edge banding and the frame beam.

[0015] The wooden floor slab comprises a wooden joist and a wooden floor slab cover panel. The frame beams and the wooden floor slab are connected by a double-layer connecting clip, which is formed by integral extrusion of aluminum alloy. One side of the double-layer connecting clip is connected to the aluminum alloy beam via a groove, while the other side has two panels, one above the other, with holes in the panels. The distance between the two panels is the height of the wooden joist. During installation, the wooden joist is inserted between the two panels, and the two panels are vertically connected using structural nails. At the point where the wooden floor slab cover panel meets the upper panel of the double-layer connecting clip, a groove of the same size as the upper panel is chiseled out to facilitate a seamless connection during installation.

[0016] The aluminum column of the modular unit extends upward a certain distance outside the beam-column joint, and this extended portion is inserted into the cast aluminum part. Furthermore, the cast aluminum part can be integrally extruded.

[0017] Furthermore, the cast aluminum parts are divided into single-cavity, two-cavity, three-cavity, and four-cavity sections, respectively meeting the requirements for connecting two modules at the upper and lower corners, four modules at the side frames, six modules at the L-shaped corners, and eight modules in the middle. A reinforcing plate is installed in the middle of the outer side of the cast aluminum part's cavity, and the reinforcing plate is integrally extruded with the cast aluminum part. This reinforcing plate is used to connect the upper and lower frame beams. The upper and lower frame beams are connected by stainless steel bolts.

[0018] Furthermore, a positioning connector is installed inside the middle section of the cast aluminum component. One side of the positioning connector is grooved, which engages with the protrusion of the frame column. The other side of the positioning connector has a short plate with a spring at its end, which engages with the groove in the cast aluminum component. During installation, the spring is compressed, and when the short plate of the positioning connector is embedded in the groove of the cast aluminum component, the spring is released to engage the positioning connector, facilitating the fixation of the frame column within the cavity of the cast aluminum component.

[0019] Furthermore, when the modular units are horizontally connected, shear-resistant Z-shaped members are installed on the aluminum alloy beams. These shear-resistant Z-shaped members are arranged along the frame beams at intervals of 1 to 1.5 meters. One side of each shear-resistant Z-shaped member is riveted to the upper side of one modular frame beam, and the other side is riveted to the lower side of another modular frame beam, thereby enhancing the connection stiffness between the wooden floorboards and the frame beams.

[0020] The modular unit building construction method is characterized by the following steps:

[0021] Step 1: First, connect the frame beams and the timber shear walls into a single assembly unit. First, secure the connection between the upper frame beams and the timber shear walls. Specifically, insert the cross-shaped plate of the integrated aluminum alloy single (double) cross-shaped cast connector into the pre-cut cross-shaped groove in the timber joist at the end of the timber shear wall. Second, insert the other side of the integrated aluminum alloy single (double) cross-shaped cast connector into the frame beam, and connect the timber shear wall to the frame beam using stainless steel bolts. Finally, connect the lower beams to the timber shear walls using the same method. This forms the unit unit of the frame beams and timber shear walls.

[0022] Step Two: Insert the slotted frame beam into the double-slot joint and connect it to the vertical plate of the double-slot joint with stainless steel bolts. Since the frame beam has already formed a whole with the timber shear wall, after the frame beam and frame column are connected, use timber shear wall single-plate fasteners to connect the frame column and timber shear wall to enhance the connection and ties.

[0023] Step 3: Install the wooden floor slabs. The frame beams and wooden floor slabs are connected using double-layer connecting clips. First, install the double-layer connecting clips on the frame beams. Then, insert the wooden joists between the two horizontal plates of the double-layer connecting clips. Finally, install the wooden floor slab cover panels and connect them to the three components using structural nails. Before installing the wooden floor slab cover panels, carve a groove of the same size as the upper side panel of the double-layer clips at the joint where it will fit, to facilitate a seamless connection.

[0024] Step 4: Hoist the installed modular unit system. When connecting side modules, use two-cavity cast aluminum fittings, inserting the frame columns of two modular units into the two-cavity cast aluminum fittings. For L-shaped connections of modular units, use three-cavity cast aluminum fittings. For connections of four intermediate modular units, use four-cavity cast aluminum fittings. The above are for frame connections within the same layer. If connecting two layers, after completing one layer of splicing, insert the frame columns into the cast aluminum fittings using the same method. The cast aluminum fittings have double-layer positioning components that respectively secure the top and bottom of the columns.

[0025] The aluminum-wood modular unit building provided by this invention has at least the following advantages compared to existing systems:

[0026] (1) This aluminum-wood hybrid modular system fully utilizes the advantages of both aluminum alloy and wood. These two materials are not only lightweight but also deformable and coordinated, overcoming the shortcomings of insufficient deformation coordination in steel-wood hybrid systems. It also reduces the requirements for joint connection performance. Furthermore, wood is a renewable building material, and aluminum alloy is fully recyclable. Both materials meet the requirements for sustainable development and carbon emission reduction throughout the building's life cycle, which is of great significance for energy conservation, emission reduction, and lowering building energy consumption. Moreover, the materials are lightweight, easy to hoist, and require less support, reducing the difficulty of hoisting and on-site installation.

[0027] (2) The shear wall of this hybrid modular structure system is a plywood shear wall. After being connected to the aluminum frame by an integrated aluminum alloy cross-shaped casting connector, the lateral force resistance of the structure can be greatly enhanced.

[0028] (3) The wooden joists of the wooden floor slab are connected to the aluminum beams through the double-layer connecting clips of the floor slab, which enhances the rigidity of the modular building in the plane, so that the structure deforms more evenly under horizontal load.

[0029] (4) By setting Z-shaped keys on the modular unit beams, the disadvantage of low overall in-plane stiffness of modular buildings is overcome, which has a significant positive effect on improving the stress performance and integrity of modular structures.

[0030] (5) The modular unit column adopts an extruded irregular aluminum section, which makes full use of the advantage of aluminum material being easy to extrude and form. The beam and column are connected by a double slot connection node formed by single plate clips, which not only greatly reduces the amount of bolts used, but also makes full use of the material strength of aluminum alloy. It avoids the reduction of component strength caused by welding connection, and also reduces the weakening of column section caused by bolt connection.

[0031] (6) The entire modular unit is assembled using cast aluminum parts. By setting extruded irregular frame column positioning connectors inside the cast aluminum parts, not only can the modular units be quickly connected, but the column tops and bottoms can also be clamped. Due to the advancement of aluminum cross-section manufacturing technology, cast aluminum parts with different cavities can be manufactured according to assembly requirements.

[0032] Overall, this modular structural system with extruded aluminum-wood double-slot connections ensures rapid on-site assembly while significantly improving lateral force resistance and horizontal connection strength between module units through the proposed connection construction measures. This enhances the overall in-plane stiffness of the modular building, overcoming the shortcomings of complex assembly and weak in-plane stiffness found in most modular buildings. It solves a key problem urgently needing to be addressed in the development of high-rise modular structures. This system can be used to realize the construction of high-rise modular buildings. It has significant developmental implications for building types requiring rapid assembly, such as medical and disaster relief buildings, and plays a crucial role in promoting the industrialization of housing and construction in my country, as well as the transformation and upgrading of the housing industry. Attached Figure Description

[0033] Figure 1 This is a modular structural unit of the present invention;

[0034] Figure 2 This is the connection node between the floor slab and the frame beam;

[0035] Figure 3 Installation diagram for floor slab timber framing;

[0036] Figure 4 A diagram showing the completed installation of the wooden floor slabs and frame beams;

[0037] Figure 5 This is a cross-sectional view of the connection between the wooden floor slab and the frame beam;

[0038] Figure 6 Detailed drawing of the double-layer connection clips for the floor slab;

[0039] Figure 7 It is a plywood shear wall;

[0040] Figure 8 This is a cross-sectional view of a plywood shear wall.

[0041] Figure 9 Detailed drawing of the connection between the plywood shear wall and the frame column;

[0042] Figure 10 It is an integrated aluminum alloy single cross-shaped connector;

[0043] Figure 11 It is an integrated double cross-shaped aluminum alloy connector;

[0044] Figure 12 Cross section of beam-column double-slot connection node and frame column;

[0045] Figure 13 Elevation view of the double-slot connection node between beams and columns;

[0046] Figure 14 Elevation view of the connection between the double-slot connection node and the frame beam;

[0047] Figure 15 Plan view showing the connection between the double-slot connection node and the frame beam;

[0048] Figure 16 This is a splicing diagram of two module units on the same layer, as shown in Example 1.

[0049] Figure 17 This is a diagram showing the connection steps between two module units on the same layer at node A.

[0050] Figure 18 Connect the three views of node A to the two module units on the same level;

[0051] Figure 19 Example 2: Top-bottom connection diagram of the two module units;

[0052] Figure 20 A three-sided view of the connection node between the two module units at node B;

[0053] Figure 21 Elevation view of node B, the vertical connection node between the two module units;

[0054] Figure 22 It is a two-cavity cast aluminum part;

[0055] Figure 23 For positioning connectors;

[0056] Figure 24 Installation diagram for a two-cavity cast aluminum component;

[0057] Figure 25 Three-view diagram of a two-cavity cast aluminum part;

[0058] Figure 26 This is a schematic diagram of the L-shaped module connection in Example 3;

[0059] Figure 27 Installation diagram of the upper and lower modules for node C-corner;

[0060] Figure 28 This is an installation diagram for a single-cavity cast aluminum component.

[0061] Figure 29 This refers to the node at the corner of the DL-shaped node;

[0062] Figure 30 It is a three-cavity cast aluminum part;

[0063] Figure 31 Installation diagram for a three-cavity cast aluminum component;

[0064] Figure 32 Node E - Intermediate node diagram of upper and lower layers;

[0065] Figure 33 Installation diagram of a four-cavity cast aluminum component.

[0066] Figure 34 The diagram shows the node F, which represents the edge frame nodes of the upper and lower layer modules.

[0067] The numbers on the map are:

[0068] Basic components of the modular unit: Unit 100 - Modular unit; 101 - Extruded irregular cross-section aluminum alloy column, abbreviated as frame column; 102 - Frame beam; 103 - Timber floor slab; 104 - Plywood shear wall; 105 - Timber joists; 106 - Timber floor slab covering panel; 107 - Double-layer floor slab connecting clips; 108 - Floor slab connecting structural nails; 109 - Main wall studs of the timber shear wall; 110 - Edge sealing studs of the plywood shear wall; 111 - Covering panel (OSB board); 112 - Plywood of the plywood shear wall; 113 - Single-layer board clips; 114 - Integrated aluminum alloy single cross-shaped cast connector; 115 - Integrated aluminum alloy double cross-shaped cast connector; 116 - Fixed angle steel for the plywood shear wall; 117 - Stainless steel bolts; 118 - Double-slot clips; 119 - Rivets; 120 - Stainless steel bolts; 121 - Extended stainless steel bolts.

[0069] Modular component section: 101a - Same-floor module splicing connection to the right frame column; 101b - Same-floor module splicing connection to the left frame column; 102a - Same-floor module splicing connection to the right frame beam; 102b - Same-floor module splicing connection to the left frame beam; 201a - Upper-level module splicing connection to the right frame column; 201b - Upper-level module splicing connection to the left frame column; 202a - Upper-level module splicing connection to the right frame beam; 202b - Upper-level module splicing connection to the left frame beam.

[0070] Components of the modular assembly: 301-Z-shaped horizontal stiffening reinforcement; 302-two-cavity cast aluminum component; 302A-two-cavity cast aluminum component for bottom connection; 303-positioning connector; 304-three-cavity cast aluminum component; 305-four-cavity cast aluminum component; 306-prestressed tie rod; 307-reinforcing plate; 308-single-cavity cast aluminum component; 309-spring. Detailed Implementation

[0071] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0072] Figure 1 A hybrid modular unit 100 with extruded irregular cross-section aluminum-wood double slot connection is provided, including extruded irregular cross-section aluminum alloy column (hereinafter referred to as aluminum column) 101 and extruded irregular cross-section aluminum alloy beam (hereinafter referred to as aluminum beam) 102, forming a modular basic unit frame.

[0073] Specifically, each module's basic unit frame node is a double-slot connection node, enabling the connection of frame beams and columns. This double-slot connection node consists of double-slot clips and rivets. The double-slot clips fit tightly into the slots of the irregularly shaped aluminum alloy columns, forming a quick-assembly node.

[0074] Specifically, each modular unit includes a wooden floor slab 103 and a wooden shear wall 104. Specifically, each modular unit frame beam 102 is provided with a Z-shaped horizontal stiffness reinforcement 301.

[0075] Specifically, the wooden floor 103 is composed of wooden joists 105 and wooden floor covering panels 106 connected by floor connecting structural nails 108.

[0076] Figures 2-6 The specific connection method and steps between the wooden floor slab 103 and the frame beam 102 are given. The connection between the wooden floor slab 103 and the frame beam 102 is mainly achieved through a double-layer connecting clip 107. This double-layer connecting clip 107 is made of aluminum alloy, which fully utilizes the advantage of aluminum alloy being easy to extrude. It is manufactured using an integrated casting and extrusion process, and its specific structure is as follows... Figure 6 As shown. The double-layer connecting clip 107 consists of double slots and a double-layer clip plate. The double-layer clip plate has openings, and the spacing between the double-layer clips is the height of the wooden keel 105. Figure 2The diagram illustrates the installation of floor panel 107. When installing the wooden floor panel 103, first insert the double-slotted part of 107 into the protruding portion of the irregular frame beam. After securing it with the slots, insert the wooden joists 105 into the double-layered clamping plate of 107. The double-layered connecting clamps 107 can be arranged symmetrically on both sides depending on the position of the frame beams; that is, symmetrically on both sides for edge frame beams and on both sides for middle frame beams. Next, install the wooden floor panel cladding 106. To ensure a close fit between 106 and the double-layered clamping plate of 107, before installing the wooden floor panel cladding 106, carve a groove in it that perfectly matches the dimensions of the double-layered clamps. When installing the wooden floor panel cladding 106, after it is firmly attached to 107, connect it with stainless steel bolts. The wooden joists 105 and the wooden floor panel cladding 106 are connected using floor panel connecting structural nails 108.

[0077] Figures 7-8 This is a detailed drawing of the timber shear wall (104) and a schematic diagram of its connection to the frame. Figure 7 The plywood shear wall 104 is constructed by connecting the main shear wall studs 109 and plywood shear wall panels 112 via floor slab connecting structural nails 108, and is covered with oriented strand board (OSB) 111. The shear wall 104 is reinforced with plywood shear wall edge-sealing studs 110 at both the top and bottom to enhance its horizontal lateral stiffness. The main shear wall studs 109 are symmetrically arranged on both sides of the plywood shear wall panels 112. Figure 8 ).

[0078] Figure 9 This is a detailed drawing showing the connection between the plywood shear wall 104 and the frame column 101. When connecting the plywood shear wall 104 and the frame column 101, the single-layer clamps 113 are first inserted into the protruding parts of the frame column 101 and secured by the grooves. The single-layer clamp 113 is integrally cast and extruded, with double slots on one side and a single-layer veneer on the other. Holes are opened on the veneer with a spacing between 900mm and 1200mm. A section 112 extends outward from the plywood shear wall 104 at a certain distance to facilitate connection with the single-layer clamp 113. Holes are opened at corresponding positions on the extended portion of 112 and the single-layer clamp 113, and the section is connected to the single-layer clamp 113 using stainless steel bolts 120.

[0079] Figures 10-11Detailed drawings of the integrated aluminum alloy single-cross type cast connector 114 and the integrated aluminum alloy double-cross type cast connector 115 are provided. When connecting the plywood shear wall 104 to the frame beam 102, the integrated aluminum alloy single-cross type cast connector 114 and the integrated aluminum alloy double-cross type cast connector 115 are used. The integrated aluminum alloy single-cross type cast connector 114 is integrally cast from a C-shaped plate and a set of cross-shaped plates, avoiding welding. The integrated aluminum alloy double-cross type cast connector 115 is integrally cast from a C-shaped plate and two sets of cross-shaped plates, with holes on the two vertical plates of the C-shaped plate. First, the C-shaped plate of the integrated aluminum alloy single-cross type cast connector 114 is fitted into the frame beam 102, and then the integrated aluminum alloy single-cross type cast connector 114 is connected to the frame beam 102 using stainless steel bolts. One 114 is installed every other main wall stud 109 of the shear wall. The main shear wall studs 109 of the plywood shear wall 104 have cross-shaped grooves. When connecting the plywood shear wall 104 to the frame beam 102, after 114 is installed, the main shear wall studs 109 with the pre-cut cross-shaped grooves are inserted into the cross-shaped plates of 114 and secured with the cross-shaped plates. Specifically, the width of the plywood shear wall is 1.5m~2.0m. If splicing is required, an integrated aluminum alloy double cross-shaped cast connector 115 is used for connection. The difference between this integrated aluminum alloy double cross-shaped cast connector 115 and the integrated aluminum alloy single cross-shaped cast connector 114 is that two sets of cross-shaped plates are set on the plate, which are respectively secured to the two studs at the splicing point of the plywood shear wall to realize the connection of the plywood shear wall. Specifically, the edge sealing studs 110 of the plywood shear wall 104 are further reinforced with plywood shear wall fixing angle steel 116 between them and the frame beam 102.

[0080] Figures 12-15 This is a detailed drawing of a double-slot connection node, specifically a modular unit frame connection node. A key component of the node is the double-slot clamp 118, which is formed by extruding two grooves and a vertical plate. Holes are formed in both the grooves and on the vertical plate. When 118 connects to the extruded irregular-section frame column 101, the protruding part of 101 engages with the double grooves of 118. To enhance node rigidity, rivets 119 can be used for fixation. If the structure does not require high node rigidity, simply clamping 118 to 101 is sufficient for quick connection. Before connecting the frame beam 102 to the double-slot clamp 118, a groove matching the size of the vertical plate of 118 is cut into it. 118 is then inserted into the frame beam 102, and 118 and 102 are connected by stainless steel bolts 120. A gap is left between the lower part of 102 and 101 to facilitate modular unit connection.

[0081] Example 1

[0082] This embodiment uses the case of two interconnected bottom-level module units as an example for illustration. Figure 16As shown, in this embodiment, the ground floor of a single-story or multi-story building is connected. Modular unit 100A is connected to modular unit 100B. Modular unit 100A has the same structure as modular unit 100B. The connection node between the two modules is node A, as shown... Figures 17-18 When connecting the two modules, the two adjacent frame columns are inserted into the bottom connecting two-cavity cast aluminum component 302A. 302A consists of two cavities and a reinforcing plate 307, with openings in the reinforcing plate 307. A positioning connector 303 is provided at the bottom of the cavity of 302A, such as... Figure 20 The structure is as follows: one side is a groove that engages with the protrusion of the aluminum alloy column. The other side has a small short plate with a spring 309 at its end, which engages with the groove in the cast aluminum part. During installation, the spring 309 is tightened. Once the positioning connector short plate is embedded in the groove of the cast aluminum part, the spring is released, allowing the positioning connector to engage, facilitating the positioning and fixing of the aluminum alloy column within the cast aluminum part.

[0083] When modular units 100A and 100B are connected, a Z-shaped horizontal stiffness reinforcement 301 is installed on the frame beam of each modular unit. This Z-shaped horizontal stiffness reinforcement 301 is arranged along the frame beam at a certain interval, ranging from 1 meter to 1.5 meters. One side of 301 is connected to the upper side of one modular beam by rivets, and the other side is connected to the lower side of another modular frame beam by rivets, thereby enhancing horizontal stiffness.

[0084] Example 2

[0085] Figure 19 This is a schematic diagram of Embodiment 2. Embodiment 2 is illustrated by taking the connection of two upper and lower modular units as an example, which splices the upper and lower adjacent layers of the modular units in Embodiment 1.

[0086] Modular unit 100 is connected to its upper-level modular unit 200, forming a two-story building. Modular unit 200 has the same structure as modular unit 100. Specific connection methods are combined... Figures 19-21 Note: To emphasize the connection method of the modular units, the wooden floor slabs and shear walls of the modular units are omitted in the diagram. The four modular units on the upper and lower floors are mainly connected through node B.

[0087] Figures 20-21 This is the construction and installation diagram for Example 2.

[0088] As mentioned earlier, the modular unit frame connection nodes are double-slot connection nodes, connecting the aluminum beams and aluminum columns via double-slot clips 118 and rivets 119. The aluminum beams are pre-grooved before connection, with dimensions matching those of clip 118. Furthermore, a groove is provided between the lower part of aluminum beam 102 and 101, which fits tightly against the outer wall of the two-cavity cast aluminum connector 302, enabling rapid assembly. The dimensions of this groove are consistent with the cross-sectional thickness of the two-cavity cast aluminum connector 302.

[0089] When connecting the upper and lower modules, the aluminum columns 101a and 101b of the two module units are directly inserted into the two-cavity cast aluminum connector 302. The aluminum beams 102a and 102b are inserted into the two-cavity cast aluminum connector 302 along the groove between them and the aluminum columns. Therefore, from the outside of the two modules after they are assembled, the modular connection node structure fits well and is clamped to the two-cavity cast aluminum connector 302 through the groove, so as to achieve quick connection of the two modules.

[0090] A positioning connector 303 is provided inside the two-cavity cast aluminum connector 302. The size of the connector matches the irregular protrusion of the frame column, facilitating quick and easy fixing. The upper modular unit frame beam and the lower modular unit frame beam are connected by the reinforcing plate 307 on the two-cavity cast aluminum connector 302. The upper modular unit frame beam, the lower modular unit frame beam, and the reinforcing plate are connected by extended stainless steel bolts 121.

[0091] Specifically, Figure 22 This is a detailed structural drawing of the two-cavity cast aluminum connector 302. The connector 302 consists of two cavities and a reinforcing plate. The cavities have slots, and the reinforcing plate has openings. A reinforcing plate 307 is installed at the center of the outer side of the connector 302, and the reinforcing plate is integrally extruded with the cast aluminum component. The location of this reinforcing plate is related to the position of the frame column.

[0092] Figure 23 A detailed structural diagram of the positioning connector 303 is provided. Specifically, the positioning connector 303 is installed inside the cavity of the two-cavity cast aluminum connector 302 at the midpoint of its height. The positioning connector 303 is integrally extruded from a cast aluminum part, with one side being a groove that engages with the protrusion of the frame column, and the other side extending out into two short plates. Springs 308 are installed at the ends of the short plates and engage with the grooves of the two-cavity cast aluminum connector 302. During installation, the springs 309 are compressed, and when the short plates of the positioning connector 303 are embedded in the grooves of the two-cavity cast aluminum connector 302, the springs 309 are released, thus securing the positioning connector 303 in place, facilitating the positioning and fixation of the frame column within the two-cavity cast aluminum connector 302. Figure 24 Detailed drawing of the two-cavity cast aluminum connector 302 for installing the positioning connector 303. Figure 25 This is a 302 three-view drawing.

[0093] Example 3

[0094] Figure 26 The following is a schematic diagram of Embodiment 3. This embodiment is illustrated by the splicing of modular units in the upper and lower layers. The upper and lower layers are L-shaped modular units, and nodes C, D and E are important nodes in this embodiment.

[0095] Figures 27-28This is a detailed drawing of node C and its connector, specifically the corner node between the upper and lower modules. This node uses a single-cavity cast aluminum connector 308 to achieve the corner connection between the upper and lower modules. The structural diagram of the single-cavity cast aluminum connector 308 is shown below. Figure 28 As shown, its structure is similar to the aforementioned two-cavity cast aluminum connector, with a positioning connector 304 set in the cavity, and the installation method is also similar to the aforementioned two-cavity cast aluminum connector.

[0096] Figure 29 This is a detailed drawing of node D, the node at the junction of the upper and lower L-shaped units. This node uses a three-cavity cast aluminum connector 304 to connect the three modules of the upper and lower layers. Similar to the aforementioned two-cavity cast aluminum connector, this three-cavity cast aluminum connector 304 has a positioning connector 303 inside. To avoid weakening the cross-section of the three-cavity cast aluminum connector 304, the orientation of the positioning connector 303 can be changed to avoid the cross-sectional slots at the two cavities. The placement of the reinforcing plate 307 is related to its position in the frame.

[0097] Figure 32 The detailed diagram for node E shows the node at the intersection of the four module corners. The installation method is similar to the embodiment described above. Figure 33 This is a plan view of the four-cavity cast aluminum connector 305, with the positioning connector 303 already installed.

[0098] Figure 34 The detailed drawing shows node F, which is the edge frame node of the upper and lower module. The installation method is similar to the embodiment described above. The connector is also a four-cavity cast aluminum connector 305.

[0099] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A modular structural system for extruded irregular cross-section aluminum-wood double-slot connection, used to construct modular structures, characterized in that, The modular structure system is an aluminum-wood composite structure system, including modular units and cast aluminum components. The modular units include: an aluminum alloy frame, frame beams and frame columns are extruded irregular cross-section aluminum components, double-slot connection nodes, wooden floorboards composed of wooden joists and wooden floorboard veneer panels, plywood shear walls, frame beams and wooden joists are connected by double-layer connecting clips on the floorboards, plywood shear walls are connected to frame columns by single-plate clips, and connected to frame beams by integrated aluminum alloy single-cross type cast connectors or integrated aluminum alloy double-cross type cast connectors; the modular units are connected by plug-in connection of cast aluminum components, and the cast aluminum components have positioning connectors inside at the middle of the height. The frame beams and frame columns in the modular unit are connected by double-slot connection nodes. The double-slot connection nodes are connected to the frame columns by double-slot clips through grooves. The double-slot clips are formed by extruding two grooves and a vertical plate together. The vertical plate has holes and is connected to the frame beams by stainless steel bolts.

2. The modular structural system of extruded irregular cross-section aluminum-wood double slot connection as described in claim 1, characterized in that, The frame beams and columns are made of extruded aluminum components with irregular cross sections, which facilitates connection with positioning connectors.

3. The modular structural system of extruded irregular cross-section aluminum-wood double slot connection as described in claim 1, characterized in that, When the double-slot connection node is connected to the frame beam, before the frame beam is connected to the double-slot fastener, a slot with the same size as the vertical plate of the double-slot fastener is cut out. The vertical plate of the double-slot fastener is inserted into the frame beam, and the vertical plate of the double-slot fastener is connected to the frame beam by stainless steel bolts.

4. The modular structural system of extruded irregular cross-section aluminum-wood double slot connection as described in claim 1, characterized in that, When connecting the plywood shear wall to the frame beam, an integrated aluminum alloy single-cross type cast connector or an integrated aluminum alloy double-cross type cast connector can be used. The integrated aluminum alloy single-cross type cast connector is composed of a C-shaped plate and a cross-shaped plate through integrated casting. The main wall studs of the plywood shear wall have cross-shaped grooves that are clamped to the cross-shaped plate. The C-shaped plate of the integrated aluminum alloy single-cross type cast connector is connected to the frame beam. Holes are opened on the two vertical plates of the C-shaped plate. After being clamped to the frame beam, it is connected by stainless steel bolts. One integrated aluminum alloy single-cross type cast connector is set every other main wall stud of the shear wall. At the splicing point of two shear walls, an integrated aluminum alloy double-cross type cast connector is used to achieve splicing by clamping the two main wall studs of the shear walls at the splicing point.

5. The modular structural system of extruded irregular cross-section aluminum-wood double slot connection as described in claim 4, characterized in that, The difference between this integrated double cross-shaped cast aluminum alloy connector and the integrated single cross-shaped cast aluminum alloy connector is that two sets of cross-shaped plates are set on the C-shaped plate, which are respectively clamped to the two main wall studs of the wooden shear wall at the splicing point. The edge wall studs of the plywood shear wall are reinforced with plywood shear wall fixing angle steel between them and the frame beam.

6. The modular structural system of extruded irregular cross-section aluminum-wood double slot connection as described in claim 1, characterized in that, The wooden floor slab includes a wooden joist and a wooden floor slab cover panel. The frame beams and the wooden floor slabs are connected by a double-layer connecting clip, which is formed by integral extrusion of aluminum alloy. One side of the double-layer connecting clip is connected to the frame beam through a groove, and the other side is provided with two boards, one above the other, with holes on the boards. The distance between the two boards is the height of the wooden joist. During installation, the wooden joist is inserted between the two boards, and the two boards are vertically connected by structural nails. At the joint between the wooden floor slab cover panel and the upper side board of the double-layer connecting clip, a groove of the same size as the upper side board is chiseled out to facilitate seamless connection with the upper side board during installation.

7. The modular structural system of extruded irregular cross-section aluminum-wood double slot connection as described in claim 1, characterized in that, The frame columns of the modular unit need to extend upwards a certain distance outside the beam-column joint, and this extended part will be inserted into the cast aluminum part.

8. The modular structural system of extruded irregular cross-section aluminum-wood double slot connection as described in claim 1 or 7, characterized in that, The cast aluminum parts are integrally extruded and formed. The cast aluminum parts are divided into single-cavity, two-cavity, three-cavity and four-cavity parts, which respectively meet the connection of two modules at the upper and lower corners, four modules at the side frame, six modules at the L-shaped corners and eight modules at the middle. A reinforcing plate is set in the middle of the outer side of the cast aluminum part cavity. The reinforcing plate is integrally extruded and formed with the cast aluminum part. The reinforcing plate is used to connect the upper frame beam and the lower frame beam. The upper frame beam and the lower frame beam are connected by stainless steel bolts.

9. The modular structural system of extruded irregular cross-section aluminum-wood double slot connection as described in claim 1 or 7, characterized in that, One side of the positioning connector is grooved and engages with the protrusion of the frame column. The other side of the positioning connector is provided with a short plate and a spring at the end of the short plate, which engages with the groove of the cast aluminum part. During installation, the spring is tightened and the spring is released when the short plate of the positioning connector is embedded in the groove of the cast aluminum part, so that the positioning connector can be engaged, which facilitates the fixation of the frame column in the cavity of the cast aluminum part.

10. The modular structural system of extruded irregular cross-section aluminum-wood double slot connection as described in claim 1, characterized in that, When modular units are horizontally connected, shear Z-shaped members are installed on the frame beams. The shear Z-shaped members are arranged along the frame beams at certain intervals, between 1 meter and 1.5 meters. One side of the shear Z-shaped member is connected to the upper side of one modular frame beam by rivets, and the other side is connected to the lower side of another modular frame beam by rivets, thereby enhancing the connection stiffness between the wooden floorboards and the frame beams.

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