An all-assembled aluminum alloy grid node and grid structure and a forming method thereof

Abstract

The present application relates to the technical field of building engineering structure, and particularly relates to a full-assembled aluminum alloy grid node and grid structure and a forming method thereof, the grid node comprising a web, an upper cover plate, a lower cover plate and a plurality of chord members, the web comprising a plurality of rib plates distributed along a radial direction with an axis as a center, the web penetrating through the upper cover plate and the lower cover plate, the chord members being respectively assembled and connected with the rib plates, the upper cover plate and the lower cover plate through connecting pieces, and the web and the chord members being aluminum alloy extruded profiled members. A plurality of grid nodes are connected to form a grid structure. The full-extrusion and full-assembled forming method avoids the generation of pores and thermal cracks in the aluminum alloy material caused by the welding process, improves the utilization rate of the strength of the node, the rigidity and the aluminum alloy material, and shortens the construction period.

Description

Technical Field

[0001] This invention relates to the field of building engineering structural technology, and in particular to a fully prefabricated aluminum alloy mesh node and mesh structure and its forming method. Background Technology

[0002] Aluminum alloy grid structures are common space frame or grid shell structures made of aluminum alloy components in the construction field. Thanks to the excellent corrosion resistance of aluminum alloy materials, aluminum alloy grid structures are widely used in swimming pools, chemical and coal industry factories and warehouses, as well as in structural fields under marine climate conditions.

[0003] However, the aluminum alloy components that make up the aluminum alloy mesh structure inevitably involve welding processes to meet the requirements of mesh structure formation. Aluminum alloy materials have poor weldability, and are prone to porosity and hot cracking after welding. The corrosion resistance of welded aluminum alloy components at the welded areas is generally lower than that of the base material. Therefore, in the design of mesh structures, bolt assembly is generally used as an alternative to welding. For example, the Chinese invention patent for a bolt-assembled double-layer aluminum alloy mesh shell structure (publication number: CN103590488B, publication date: 2016.01.13) discloses the use of bolt-assembled nodes, which include an upper cover plate, a lower cover plate, a central rib tube, and rib plates. The rib plates are connected to the central rib tube by welds, and the central rib tube is connected to the upper and lower cover plates by bolts. The upper flange of the H-shaped aluminum alloy member is connected to the upper cover plate of the bolt assembly node by bolts, and the lower flange is connected to the lower cover plate of the bolt assembly node by bolts. The web is connected to the rib plate of the bolt assembly node by bolts, forming a bolt-assembled double-layer aluminum alloy grid shell structure. This reduces the number of welding positions of the aluminum alloy material to a certain extent. However, the connection between the rib plate and the central rib tube at the bolt assembly node still requires welding. The upper and lower end plates of the central rib tube also need to be welded to achieve the connection with the central rib tube. This leads to a reduction in the utilization rate of the aluminum alloy material strength, and the actual performance of the aluminum alloy component connection node deviates from the calculation assumptions. This limits the building's requirements for larger spans, increases material usage and cost, and prolongs the building construction period.

[0004] Therefore, there is an urgent need for a technical solution to address the technical problems that arise from the current welding process used in aluminum alloy mesh structures, which reduces the utilization rate of aluminum alloy material strength, causes discrepancies between the actual performance of aluminum alloy component connection nodes and calculation assumptions, limits the building's ability to accommodate larger spans, increases material usage and costs, and prolongs the building's construction cycle. Summary of the Invention

[0005] The purpose of this invention is to address the technical problems of existing aluminum alloy mesh structures, which use welding processes, resulting in reduced utilization of aluminum alloy material strength, discrepancies between the actual performance of aluminum alloy component connection nodes and calculation assumptions, limiting the requirements for larger spans in buildings, increasing material usage and costs, and prolonging the building construction cycle. This invention provides a fully prefabricated aluminum alloy mesh node and mesh structure, as well as its forming method.

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

[0007] A fully assembled aluminum alloy mesh node includes web members, an upper cover plate, a lower cover plate, and multiple chord members. The web members include several ribs radially distributed around an axis. The web members pass through the upper cover plate and the lower cover plate. The chord members are assembled and connected to the ribs, the upper cover plate, and the lower cover plate respectively through connectors. The web members and chord members are all extruded aluminum alloy members, and the upper cover plate and the lower cover plate are both aluminum alloy plate-shaped structural members.

[0008] This invention discloses a fully prefabricated aluminum alloy grid node, which uses extruded aluminum alloy rods and achieves full assembly connection through conventional aluminum alloy connectors such as bolts, anchors, or rivets. This avoids the porosity and hot cracks inside the aluminum alloy material caused by welding, improving the load-bearing capacity and stiffness of the grid node, thereby enhancing the stability of the grid structure using this grid node and the utilization rate of the aluminum alloy material strength. Simultaneously, the web members pass through the upper and lower cover plates, allowing them to extend upwards or downwards as needed, facilitating structural expansion. For example, a single integral web member can be used to achieve integrated connection between the grid node and non-main load-bearing structures such as curtain wall systems and hanging equipment, and it also facilitates the expansion of the number of grid nodes on a single integral web member, enabling direct force transfer between multi-layer structures. The actual performance of the fully prefabricated grid node is more likely to match the calculated assumptions, meeting the requirements for larger spans and shortening the construction cycle.

[0009] As a preferred embodiment of the present invention, the cross-sectional shape and size of the web member are consistent at any two positions in the longitudinal direction, and the rib plate is drilled with connecting holes according to the position of the chord member. That is, the web member is a one-time extruded aluminum alloy member. After extrusion molding, only assembly connecting holes need to be set according to the actual situation, avoiding the use of additional processes, reducing the difficulty of web member manufacturing, and improving the performance of web member.

[0010] As a preferred embodiment of the present invention, both the upper cover plate and the lower cover plate are provided with through holes that have the same shape and size as the cross-section. This allows the web members to fit against the inner wall of the through holes while passing through the upper and lower cover plates, forming surface contact. This enables more direct transmission of forces to the mesh nodes during use, further improving structural stability.

[0011] In a preferred embodiment of the present invention, the chord member includes a web plate, which is flush with the rib plate. The web plate and the rib plate are assembled and connected by overlapping connecting plates. Two connecting plates are respectively disposed on both sides of the rib plate, and the connecting plates on both sides are assembled and connected by connectors, including bolts, anchors, or rivets. The web plate and the rib plate of the chord member are assembled and connected by double connecting plates. Combined with the upper and lower cover plates for assembling the upper and lower flange plates, a rigid connection between the chord member and the web member is achieved, forming a structurally stable grid node that can stably withstand shear forces during use, thus improving structural stability.

[0012] In a preferred embodiment of the present invention, all the ribs are distributed divergently along the axis of the web member to form a star-shaped aluminum alloy web member, which can be formed in one step by extrusion, avoiding the use of welding.

[0013] In a preferred embodiment of the present invention, a plurality of ribs are evenly spaced around the axis of the web member, and the number of ribs is the same as the number of chord members. This achieves circumferential force balance of the web member, realizes stable force transmission in all directions, and improves the structural stability of the mesh node under stress.

[0014] A fully assembled aluminum alloy mesh structure includes several mesh nodes as described above, with adjacent mesh nodes connected by the chord.

[0015] This invention discloses a fully prefabricated aluminum alloy grid structure. By employing the aforementioned grid nodes, welding is avoided, resulting in higher overall stability and aluminum alloy material utilization. A single-layer grid structure can be easily formed through the cooperation of multiple grid nodes. Alternatively, multiple grid nodes can be formed on a single integral web member to create a multi-layer grid structure, depending on the actual situation. The web member can be further extended to achieve further structural expansion of the grid structure. Through a single integral web member, multiple grid nodes and non-main load-bearing structures such as curtain walls and suspended equipment can effectively transmit force along the web member, further improving the structural stability of the grid structure.

[0016] As a preferred embodiment of the present invention, at least two layers of grid nodes are arranged along the longitudinal direction of the web members. Each layer of grid nodes includes an upper cover plate, a lower cover plate, and multiple chord members. The chord members in adjacent layers may have the same or different dimensions, and the chord members include H-shaped aluminum alloy rods. This forms a multi-layer grid structure, which can further extend the web members and expand the grid structure form to further broaden its applicability.

[0017] In a preferred embodiment of the present invention, diagonal braces are provided between the grid nodes of adjacent layers. Each diagonal brace has two ends fitted with ribs. One end of the diagonal brace is fitted with a lower cover plate near the upper-layer grid node, and the other end is fitted with an upper cover plate near the other-layer grid node. Several diagonal braces are distributed intersectingly in the grid space. The diagonal braces are extruded aluminum alloy members. By setting the diagonal braces, force transfer between different layers and different braces is achieved, forming a multi-layer aluminum alloy grid structure with rigid chord connections and hinged braces, resulting in structural stability and high aluminum alloy material utilization. This further improves the stability of the grid structure and achieves effective force distribution and transfer.

[0018] In a preferred embodiment of the present invention, the diagonal web members are fitted together with the rib plate to form surface contact, and two diagonal web members are sandwiched between the two sides of the rib plate and assembled together. The diagonal web members include any one of single-slot aluminum, double-slot aluminum, single-angle aluminum, or double-angle aluminum. This arrangement of diagonal web members on both sides of the rib plate achieves stable and balanced transmission of forces in different directions between different grid nodes, avoiding the force imbalance problem caused by unilateral arrangement.

[0019] A method for forming a fully assembled aluminum alloy mesh structure includes: S1, preparing web members and chord members using an aluminum alloy extrusion molding process, and cutting the ends of the chord members according to assembly requirements; S2, preparing an upper cover plate and a lower cover plate; S3, drilling connecting holes in the web members, chord members, upper cover plate, and lower cover plate according to assembly requirements; S4, assembling and connecting the chord members and web members, the chord members and the upper cover plate and / or the lower cover plate using connectors to form a single mesh node; S5, assembling a mesh node along the longitudinal direction on the same web member, and connecting multiple mesh nodes through chord members to form a single-layer mesh structure, or assembling at least two mesh nodes along the longitudinal direction on the same web member, and connecting multiple mesh nodes through chord members to form a multi-layer mesh structure.

[0020] The present invention discloses a forming method for a fully assembled aluminum alloy mesh structure. The method uses aluminum alloy extrusion molding to form components, combined with conventional cutting and drilling operations, and forms the mesh structure through connectors in a fully assembled manner. This avoids the use of welding processes that can cause pores and thermal cracks inside the aluminum alloy material, improves the load-bearing capacity and stiffness of the nodes, and improves the forming efficiency.

[0021] In summary, due to the adoption of the above technical solutions, the beneficial effects of the fully assembled aluminum alloy mesh node of the present invention are:

[0022] 1. The use of aluminum alloy extruded rods and fully assembled connection structure avoids the formation of pores and hot cracks inside the aluminum alloy material caused by welding process, improves the load-bearing capacity and stiffness of grid nodes, and thus improves the overall stability of the grid structure using the grid nodes and the utilization rate of the strength of aluminum alloy material.

[0023] 2. The web members pass through the upper and lower cover plates, allowing them to extend upwards or downwards as needed, facilitating structural expansion. The single integral web member enables direct force transfer between multiple layers of structure.

[0024] 3. The actual performance of the mesh nodes in a fully prefabricated structure is more likely to be consistent with the calculation assumptions, which can meet the requirements of buildings for larger spans, reduce the amount and cost of welding process materials, and shorten the building construction cycle;

[0025] The beneficial effects of the fully assembled aluminum alloy mesh structure of the present invention are:

[0026] 1. By adopting the above-mentioned mesh nodes, the use of welding processes is avoided, resulting in higher overall stability of the mesh structure and higher utilization rate of aluminum alloy materials;

[0027] 2. A single-layer grid structure can be formed relatively easily through the cooperation of multiple grid nodes;

[0028] 3. Multiple grid nodes can be formed on a single integral web member to create a multi-layer grid structure, depending on the actual situation;

[0029] 4. The web members can be further extended to achieve further structural expansion of the grid structure;

[0030] 5. By using a single integral web member, the effective force transmission of multiple grid nodes and non-main load-bearing structures such as curtain walls and hanging equipment along the web member is realized, further improving the structural stability of the grid structure and the utilization rate of aluminum alloy materials;

[0031] The beneficial effects of the forming method for a fully assembled aluminum alloy mesh structure of the present invention are:

[0032] The components are formed by aluminum alloy extrusion molding, combined with conventional cutting and drilling operations, and connected by connectors to form a grid structure. This avoids the use of welding processes that can cause pores and hot cracks inside the aluminum alloy material, improves the load-bearing capacity and stiffness of the nodes, and increases the forming efficiency of the grid structure. Attached Figure Description

[0033] Figure 1 This is a structural schematic diagram of a fully assembled aluminum alloy mesh node according to Embodiment 1;

[0034] Figure 2 This is a schematic diagram of the web member described in Example 1;

[0035] Figure 3 This is an exploded view of the upper cover plate, lower cover plate, connecting plate, and chord in Embodiment 2;

[0036] Figure 4This is an axonometric view of a fully assembled aluminum alloy mesh structure according to Embodiment 4;

[0037] Figure 5 This is a front view of a fully assembled aluminum alloy mesh structure according to Example 4;

[0038] Figure 6 This is a schematic diagram of a fully assembled aluminum alloy mesh structure according to Example 5;

[0039] Figure 7 This is a schematic diagram of a fully assembled aluminum alloy mesh structure according to the present invention;

[0040] Figure 8 This is a schematic flowchart of a fully assembled aluminum alloy mesh structure forming method according to the present invention.

[0041] icon:

[0042] 1-Web member, 11-Rib plate, 12-Connecting hole, 13-Connector, 2-Upper cover plate, 3-Lower cover plate, 4-Chord member, 41-Web plate, 42-Upper flange plate, 43-Lower flange plate, 5-Through hole, 6-Connecting plate, 7-Diagonal web member, 8-Grid node. Detailed Implementation

[0043] The present invention will now be described in detail with reference to the accompanying drawings.

[0044] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0045] Example 1

[0046] like Figures 1-2 As shown, this embodiment of a fully assembled aluminum alloy mesh node is illustrated by taking an H-shaped cross-section aluminum alloy chord 4, an upper cover plate 2 and a lower cover plate 3 of an aluminum alloy disc component, and the chord 4 being perpendicular to the longitudinal direction of the web member 1. The mesh node 8 is formed by using bolts as connectors 13 for fully assembled connection. A single mesh node 8 is formed by the web member 1, the upper cover plate 2, the lower cover plate 3, and multiple chord members 4 through a full bolt assembly. The web member 1 and the chord members 4 are both aluminum alloy one-time extrusion formed members. The aluminum alloy one-time extrusion formed members have the characteristic that the cross-sectional shape and size are consistent at any two positions from one end to the other along the longitudinal direction. The web member 1 includes several ribs 11 distributed radially around the axis, and the surface of the ribs 11 is coplanar with the axis of the web member 1. The H-shaped cross-section chord member 4 has an upper flange plate 42, a lower flange plate 43, and a web plate 41.

[0047] Before assembly, aluminum alloy web members 1 with ribs 11 are extruded and formed using an aluminum alloy extrusion process. According to the actual usage requirements of the building structure, connecting holes 12 are drilled on the ribs 11 of the web members 1 according to the height position of the chord members 4 relative to the web members 1. At the same time, in order to facilitate the insertion of the chord members 4 between the upper cover plate 2 and the lower cover plate 3 and to avoid mutual interference between adjacent chord members 4, the upper flange plate 42, the lower flange plate 43 and the web plate 41 are partially cut at the end of the chord members 4. Connecting holes 12 are drilled on the upper flange plate 42 and the lower flange plate 43 of the chord members 4 according to the actual situation. The connecting holes 12 of the upper flange plate 42 correspond to the connecting holes 12 of the upper cover plate 2, and the connecting holes 12 of the lower flange plate 43 correspond to the connecting holes 12 of the lower cover plate 3.

[0048] During assembly, the web member 1 passes through the upper cover plate 2 and the lower cover plate 3, and the end of the chord member 4 extends into the space between the upper cover plate 2 and the lower cover plate 3. After the web plate 41 of the H-shaped cross-section chord member 4 and the rib plate 11 of the web member 1 are in contact, they are bolted together to fix the relative position of the chord member 4 and the web member 1. The upper flange plate 42 of the H-shaped cross-section chord member 4 is bolted to the upper cover plate 2 to fix the relative position of the upper cover plate 2 and the chord member 4 and the web member 1. The lower flange plate 43 of the H-shaped cross-section chord member 4 is bolted to the lower cover plate 3 to fix the relative position of the lower cover plate 3 and the chord member 4 and the web member 1. This forms a fully bolted aluminum alloy steel joint node structure. Multiple node structures are connected by the chord member 4, that is, adjacent grid nodes 8 share a chord member 4 for connection, forming a single-layer grid structure with multiple grid nodes 8.

[0049] In this embodiment, the angle between the line connecting the multiple connecting holes 12 on the rib plate 11 of the web member 1 and the longitudinal direction of the web member 1 can be appropriately adjusted according to the relative angle between the longitudinal direction of the chord member 4 and the longitudinal direction of the web member 1, so as to form a grid node 8 with a certain inclination angle between the chord member 4 and the web member 1, which is conducive to forming a grid shell structure. At the same time, in this embodiment, it is preferable to cut the upper flange plate 42 and the lower flange plate 32 at the end of the chord member 4 so that the web plate 41 of the chord member 4 extends out, or to form a tapered end at the end of the chord member 4, so as to avoid mutual interference between adjacent chord members 4 at the same grid node 8. The connecting holes 12 of the upper flange plate 42 and the lower flange plate 43 are arranged along the oblique edge after the end of the chord member 4 is cut.

[0050] This embodiment presents a fully prefabricated aluminum alloy grid node, employing aluminum alloy extruded rods and a fully bolted connection structure for the grid node 8. None of the components of the grid node 8 involve welding, reducing the manufacturing difficulty of each component and improving the overall structural integrity. During use, it effectively transfers stress, enhancing the load-bearing capacity and stiffness of the grid node 8. This, in turn, improves the overall stability of the grid structure using this grid node and the utilization rate of the aluminum alloy material's strength. Furthermore, the actual performance of the fully bolted grid node 8 is more likely to align with calculation assumptions, meeting the requirements for larger spans in construction. It reduces the amount and cost of welding materials, shortens the construction cycle, and benefits from the advantages of aluminum alloy materials and the fully prefabricated rigid connection structure. Each grid node 8 possesses characteristics such as good durability, corrosion resistance, ease of processing, maintenance-free operation, and recyclability, demonstrating promising application prospects.

[0051] Furthermore, since the web member 1 passes through the upper cover plate 2 and the lower cover plate 3, the web member 1 can extend upward or downward according to the actual situation. This allows for the integration of the web member 1 with the curtain wall system, hanging equipment, and other non-main load-bearing structures of the grid structure. Alternatively, multiple grid nodes 8 can be set on a single web member to form a multi-layer aluminum alloy grid structure connected by a single web member 1. This effectively transmits the force of the non-main load-bearing structure or other layers of aluminum alloy grid structure along the single web member 1, thereby achieving overall structural stability and maximizing the utilization of the aluminum alloy material strength.

[0052] It is understandable that, since the aluminum alloy chord 4 is a conventional aluminum component, those skilled in the art can adjust its cross-sectional structure and dimensions according to the actual needs of the building design. For example, it can be a T-shaped cross-section or a one-time extruded aluminum alloy member with double-angle aluminum. It is only necessary to ensure that the chord 4 can be assembled and connected to the rib plate 11 of the web member 1, as well as the upper cover plate 2 and the lower cover plate 3, by bolts, so as to meet the usage requirements of different application environments and expand the adaptability of the grid node 8. Since the bolts are conventional aluminum alloy connectors, those skilled in the art can adjust them to other conventional connectors such as anchor bolts and rivets according to the actual needs of the building design.

[0053] In some embodiments, the upper cover plate 2 and lower cover plate 3 that make up a single grid node 8 are complete aluminum alloy disc components. Both the upper cover plate 2 and lower cover plate 3 are provided with through holes that are adapted to the cross-sectional shape and size of the web member 1. All chord members 4 are of equal height, so as to form a grid node 8 with consistent force and force transmission effect at all points around the circumference. During use, the web member 1 passes through the through holes 5 of the upper cover plate 2 and lower cover plate 3, and each rib 11 forms a surface contact with the inner wall of the through hole 5. During use, the bending moment transmission of the flange of the chord member 4 of each grid node 8 can be realized more directly, thereby improving the stability of the grid structure using the grid node 8 and the utilization rate of aluminum alloy materials.

[0054] Example 2

[0055] like Figures 1-3 As shown, this embodiment of a fully assembled aluminum alloy mesh node has a structure similar to that of embodiment 1, except that: the web plate 41 of the chord 4 is flush with the rib plate 11, the web plate 41 and the rib plate 11 are bolted together by a connecting plate 6 with an overlapping arrangement, and the two connecting plates 6 are respectively arranged on both sides of the rib plate 11 and bolted together.

[0056] In this embodiment, a fully assembled aluminum alloy mesh node is described. "Flush" refers to the coplanar arrangement of the web plate 41 and the rib plate 11, with their end faces aligned and fitted together. Double connecting plates 6 are respectively fitted to the web plate 41 of the chord member 4 and the rib plate 11 of the web member 1 to form surface contact, enabling bolted assembly connections between the web plate 41 of the chord member 4 and the rib plate 11 of the web member 1. Combined with the bolted assembly of the upper flange plate 42 and the lower flange plate 43 using the upper cover plate 2 and the lower cover plate 3, a rigid connection between the chord member 4 and the web member 1 is achieved, forming a structurally stable mesh node 8. This node can stably withstand shear forces during use, improving the load-bearing capacity and stiffness of the mesh node 8, thereby enhancing the overall stability of the mesh structure.

[0057] Specifically, in this embodiment, the connecting plate 6 is preferably an aluminum alloy plate. Before use, the connecting plate 6 is drilled with at least one row of connecting holes 12 for adapting to the connecting rib plate 11 and at least one row of connecting holes 12 for adapting to the connecting chord 4. Taking the chord 4 with an H-shaped cross section as an example, during assembly, the web plate 41 of the chord 4 is flush with the rib plate 11. The connecting plate 6 overlaps on the web plate 41 and the rib plate 11 to form surface contact. The two connecting plates 6 are located on both sides, and the connecting plates 6 on both sides and the rib plate 1 or web plate 41 are connected by bolts to realize the assembly connection of the web 1 and the chord 4 fixedly connected by the double connecting plates 6.

[0058] Example 3

[0059] This embodiment of a fully assembled aluminum alloy mesh node has a structure similar to that of Embodiment 2, except that: all the ribs 11 are distributed divergently along the axis of the web member 1, and several of the ribs 11 are evenly spaced around the axis of the web member 1.

[0060] In this embodiment, a fully assembled aluminum alloy mesh node is provided. The rib plate 11 overlaps with the axis of the web member 1 to form a star-shaped aluminum alloy web member 1. This can be formed in one step by extrusion, avoiding the use of welding. The star-shaped aluminum alloy web member 1 is connected to the chord member 4 through the rib plate 11.

[0061] In some embodiments, the number of ribs 11 is the same as the number of chord members 4 constituting a single grid node 8 and they are evenly distributed around the circumference. This achieves balanced force distribution around the web members 1, stable force transmission in all directions, and improves the structural stability of the grid node 8 under stress, thereby enhancing the overall stability of the grid structure using the grid node 8. This is also a preferred configuration.

[0062] like Figure 2 As shown, in this embodiment, the web member 1 is formed by extruding six ribs 11 at one time, and each of the six chord members 4 corresponds to a single grid node 8. It can be understood that the number of ribs 11 can be adjusted according to the actual situation to form aluminum alloy web members 1 with different star-shaped cross sections, so as to meet the use of grid nodes 8 with different usage requirements.

[0063] In other embodiments, the number of ribs 11 can be greater than the number of chords 4, and the number of unconnected ribs 11 between adjacent chords 4 can be kept consistent. This expands the structural types of the web members 1 and enables adaptation to different usage environments.

[0064] Example 4

[0065] like Figure 7 As shown, a fully assembled aluminum alloy mesh structure adopts the fully assembled aluminum alloy mesh node of Embodiment 3, including a plurality of mesh nodes 8 as described above, and adjacent mesh nodes 8 are connected by the chord 4.

[0066] This embodiment presents a fully prefabricated aluminum alloy grid structure in which several grid nodes 8 are connected by chords 4 to form a single-layer grid structure. That is, adjacent grid nodes 8 share a chord 4 for connection. The web members 1 are further extended to connect with non-main load-bearing structures such as curtain walls and hanging equipment, thereby further expanding the applicable scope of the grid structure.

[0067] Preferred, such as Figures 4-5 As shown, two layers of grid nodes 8 are arranged longitudinally along the web member 1. Each layer of grid nodes 8 includes the upper cover plate 2, the lower cover plate 3, and multiple chord members 4 to form a double-layer grid structure. The upper layer grid nodes 8 are assembled and connected to the upper end of the web member 1, and the lower layer grid nodes 8 are assembled and connected to the lower end of the web member 1. After the web member 1 is extruded and formed, connecting holes 12 are drilled to connect the chord members 4 and the web plate 41, so that the grid nodes 8 of adjacent layers are interconnected through the force of a single integral web member.

[0068] It is understandable that the length of the web member 1 can be further extended to meet the adaptability requirements in different building structures.

[0069] It is understood that the chords 4 of the grid nodes 8 in adjacent layers may have the same or different dimensions, and the cross-sectional shape of the chords 4 may also be adjusted according to the actual situation to further expand the adaptability of the grid structure.

[0070] Example 5

[0071] like Figures 1-7 As shown, this embodiment of a fully assembled aluminum alloy mesh structure is similar in structure to embodiment 4, except that: diagonal braces 7 are provided between the mesh nodes 8 of adjacent layers. One end of the diagonal brace 7 is bolted to the rib plate 11, and the other end is connected to the rib plate 11 of another brace 1 in another layer. The diagonal brace 7 is an aluminum alloy extruded rod. The connection position of the diagonal brace 7 and the rib plate 11 is close to the lower cover plate 3 of the upper mesh node 8 and the upper cover plate 2 of the lower mesh node 8 of the other brace 1. Several diagonal braces 7 are distributed intersectingly in the mesh space.

[0072] This embodiment of a fully assembled aluminum alloy mesh structure adds diagonal web members 7 to a multi-layer mesh. Connecting holes 12 for connecting the diagonal web members 7 are pre-set on the rib plate 11 of the web members 1. After full bolt assembly, a double-layer aluminum alloy mesh structure with rigid chord connections and hinged web members is formed, realizing the force transmission between different layers and different web members 1, further improving the stability of the mesh structure, and realizing the effective distribution and transmission of structural forces.

[0073] It is understandable that the number of diagonal web members 7 and the connection position at the ends can be adjusted according to the actual situation to adapt the grid structure to different usage environments and avoid positional interference of the diagonal web members 7 connected to adjacent web members 1 in the grid space.

[0074] Preferably, the two diagonal web members 7 are clamped on both sides of the rib plate 11 and bolted together. This allows for the stable and balanced transmission of forces in different directions between different grid nodes 8 through the diagonal web members 7 on both sides of the rib plate 11, avoiding the force imbalance problem caused by unilateral installation.

[0075] It is understood that the cross-sectional shape of the inclined web member 7 can be adjusted according to the actual situation. It can be any one of single-groove aluminum, double-groove aluminum, single-angle aluminum or double-angle aluminum. This embodiment takes double-angle aluminum as an example for demonstration.

[0076] Example 6

[0077] like Figure 8 As shown, the forming method of a fully assembled aluminum alloy mesh structure in this embodiment, based on the fully assembled aluminum alloy mesh structures of Embodiments 4 and 5, includes:

[0078] S1. The web member 1 and chord member 4 are prepared by aluminum alloy extrusion molding process, and the ends of the chord member 4 are cut according to the assembly requirements to avoid assembly interference between adjacent chord members 4 at the same grid node.

[0079] S2. Prepare the upper cover plate 2 and the lower cover plate 3.

[0080] Specifically, since the upper cover plate 2 and the lower cover plate need to be provided with through holes 5 that are adapted to the cross section of the web member 1, when the shape of the through hole 5 can be easily formed by conventional cutting process, the upper cover plate 2 and the lower cover plate 3 are prepared by cutting aluminum alloy plate. When the shape of the through hole 5 is not easy to be formed by conventional cutting process, the upper cover plate 2 and the lower cover plate 3 with through holes 5 are prepared by aluminum alloy extrusion molding process. The two can be selected according to the production situation.

[0081] S3. Drill connecting holes 12 on the web member 1, chord member 4, upper cover plate 2 and lower cover plate 3 according to assembly requirements.

[0082] Specifically, connecting holes 12 adapted to the connector 13 are drilled in the rib plate 11 of the web member 1, the web plate 41, upper flange plate 42 and lower flange plate 42 of the chord member 4, the upper cover plate 2 and the lower cover plate 3. The number of connecting holes 12 at each assembly position can be increased in the number of rows or in a single row according to the stress conditions.

[0083] S4. Connect the chord 4 and web member 1, and the chord 4 and upper cover plate 2 and / or lower cover plate 3 by means of connector 13 to form a single grid node.

[0084] S5. A grid node 8 is assembled longitudinally on the same web member 1. Multiple grid nodes 8 are connected by chord members 4 to form a single-layer grid structure. Alternatively, at least two grid nodes 8 are assembled longitudinally on the same web member 1. Multiple grid nodes 8 are connected by chord members 4 to form a multi-layer grid structure. Either method can be selected according to the architectural design requirements.

[0085] Preferably, for multi-layer mesh structures that require the assembly of diagonal web members 7, the diagonal web members 7 are prepared using an aluminum alloy extrusion molding process, and connecting holes 12 are drilled on the web members 1 and the diagonal web members 7 before assembly and connection.

[0086] This embodiment describes a forming method for a fully assembled aluminum alloy mesh structure. The method involves using an aluminum alloy extrusion molding process to prepare components, combined with conventional cutting and drilling operations, and then connecting the mesh structure through connectors 13 in a fully assembled manner. This avoids the use of welding processes that could cause pores and thermal cracks inside the aluminum alloy material, thereby improving the load-bearing capacity and stiffness of the nodes, and thus improving the overall stability of the mesh structure and the forming efficiency.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fully assembled aluminum alloy mesh node, characterized in that, It includes a web member (1), an upper cover plate (2), a lower cover plate (3), and multiple chord members (4). The web member is a one-time extruded aluminum alloy rod with assembly connection holes after extrusion. The web member (1) includes several ribs (11) radially distributed around the axis. The web member (1) passes through the upper cover plate (2) and the lower cover plate (3). The chord members (4) are respectively assembled and connected to the ribs (11), the upper cover plate (2), and the lower cover plate (3) through connectors (13). The web member (1) and the chord members (4) are both extruded aluminum alloy rods. The upper cover plate (2) and the lower cover plate (3) are both aluminum alloy plate structures.

2. The fully assembled aluminum alloy mesh node as described in claim 1, characterized in that, The cross-sectional shape and size of the web member (1) are the same at any two positions in the longitudinal direction, and the rib plate (11) has a connecting hole (12) drilled according to the position of the chord member (4).

3. The fully assembled aluminum alloy mesh node as described in claim 2, characterized in that, Both the upper cover plate (2) and the lower cover plate (3) are provided with through holes (5) that are adapted to the web member (1).

4. The fully assembled aluminum alloy mesh node as described in claim 1, characterized in that, The chord (4) includes a web (41) which is flush with the rib (11). The web (41) and the rib (11) are assembled and connected by overlapping connecting plates (6). The two connecting plates (6) are respectively located on both sides of the rib (11). The connecting plates (6) on both sides are assembled and connected by connectors (13). The connectors (13) include bolts, anchors or rivets.

5. A fully assembled aluminum alloy mesh node as described in claim 1, characterized in that, All the ribs (11) are distributed diverging from the axis of the web (1).

6. A fully assembled aluminum alloy mesh node as described in claim 5, characterized in that, Several of the ribs (11) are evenly spaced around the axis of the web member (1), and the number of the ribs (11) is the same as the number of the chord members (4).

7. A fully assembled aluminum alloy mesh structure, characterized in that, It includes a number of fully assembled aluminum alloy mesh nodes (8) as described in any one of claims 1-6, with adjacent mesh nodes (8) connected by the chord (4) to form a single-layer mesh structure, or, at least two layers of mesh nodes (8) are arranged longitudinally along the web member (1) to form a multi-layer mesh structure, with the chord (4) of adjacent layers having the same or different dimensions, and the chord (4) including H-shaped aluminum alloy rods.

8. A fully assembled aluminum alloy mesh structure as described in claim 7, wherein diagonal braces (7) are provided between the mesh nodes (8) of adjacent layers, and the two ends of the diagonal braces (7) are respectively assembled and connected to the ribs (11) of the braces (1), one end of the diagonal braces (7) is assembled and connected to the lower cover plate (3) near the upper mesh node (8), and the other end is assembled and connected to the upper cover plate (2) near the other mesh node (8), and a plurality of diagonal braces (7) are intersected in the mesh space, and the diagonal braces (7) are aluminum alloy extruded rods.

9. A fully assembled aluminum alloy mesh structure as described in claim 8, characterized in that, The diagonal web member (7) is in contact with the rib plate (11) to form a surface contact. The two diagonal web members (7) are sandwiched on both sides of the rib plate (11) and assembled and connected. The diagonal web member (7) includes any one of single-slot aluminum, double-slot aluminum, single-angle aluminum or double-angle aluminum.

10. The forming method of a fully assembled aluminum alloy mesh structure as described in claim 7, characterized in that, include: S1. The web member (1) and chord member (4) are prepared by aluminum alloy extrusion molding process, and the ends of the chord member (4) are cut according to the assembly requirements. S2. Prepare the upper cover plate (2) and the lower cover plate (3); S3. Drill connecting holes (12) on the web member (1), chord member (4), upper cover plate (2) and lower cover plate (3) according to assembly requirements. S4. Assemble the connecting chord (4) and web member (1), chord (4) and upper cover plate (2) and / or lower cover plate (3) by means of connector (13) to form a single grid node; S5. Multiple grid nodes (8) are connected by chords (4) to form a single-layer grid structure, or at least two grid nodes (8) are assembled along the longitudinal direction on the same web member (1), and multiple grid nodes (8) are connected by chords (4) to form a multi-layer grid structure.

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