A flat plate connecting joint for complex spatial rod assembly and building structure

Abstract

The utility model relates to the field of building engineering provides a kind of flat plate type connecting joint for complex space rod piece convergence, it includes multiple lower supporting structural member, multiple upper space rod piece, oval node board, first stiffened plate and supporting structure stiffened component, oval node board has relatively arranged first connecting surface and second connecting surface along the thickness direction of itself, first connecting surface is used to connect with multiple lower supporting structural member, second connecting surface is used to connect with multiple upper space rod piece;First stiffened plate is connected on first connecting surface, and the two lower supporting structural members of mutual butt joint are respectively connected on the opposite sides of first stiffened plate;Supporting structure stiffened component is located inside lower supporting structural member and is connected with the inner wall of lower supporting structural member, and the end of supporting structure stiffened component is close to oval node board, simultaneously connected with oval node board and first stiffened plate.The connecting joint form of the present application is simple, easy to install, and can effectively improve the node stiffness and force transmission reliability.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a flat plate connection node and building structure for the intersection of complex spatial rods. Background Technology

[0002] In complex spatial structures with irregularly shaped roofs, such as airport terminals and stadiums, the connection between the roof grid structure (including space frames, space shells, trusses, etc.) and the underlying supporting structure often involves multi-member intersection nodes. Currently, there are three main types of such nodes: intersecting nodes, spherical nodes, and cast steel nodes, but all three have certain limitations in practical applications.

[0003] Specifically, intersecting joints, due to the complex spatial relationships of multiple intersecting members, are prone to weld stacking, which can lead to stress concentration and affect structural stability. While ball joints can effectively avoid the problems of weld stacking and stress concentration, when some connecting members are large, the spatial dimensions of the joint will increase significantly, seriously damaging the overall aesthetics and design effect of the building. Although cast steel joints are widely used in important projects, they have stringent requirements for processing technology, and joints in different locations need to be matched with differentiated designs. This not only makes mass production difficult but also significantly increases project costs, thus limiting their widespread promotion and application. Utility Model Content

[0004] This utility model provides a flat plate connection node and building structure for the intersection of complex spatial rods, which solves the defects of existing technology where the intersection of multiple rods is prone to weld stacking and stress concentration. The connection node of this application is simple in form and easy to install, and can effectively improve the stiffness of the node and the reliability of force transmission.

[0005] This utility model provides a flat plate connection node for the intersection of complex spatial rods, comprising:

[0006] Multiple lower support structural components;

[0007] Multiple upper space members;

[0008] An elliptical node plate has a first connecting surface and a second connecting surface that are arranged opposite to each other along its own thickness direction. The first connecting surface is used to connect with a plurality of the lower support structure members, and the second connecting surface is used to connect with a plurality of the upper space members.

[0009] The first stiffening plate is connected to the first connecting surface, and the two lower support structure members that are connected to each other are respectively connected to opposite sides of the first stiffening plate;

[0010] A support structure stiffening assembly is disposed inside the lower support structure and connected to the inner wall of the lower support structure. The support structure stiffening assembly is located near the end of the elliptical node plate and is connected to both the elliptical node plate and the first stiffening plate.

[0011] According to the present invention, a flat plate connection node for the convergence of complex spatial rods is provided. The stiffening assembly of the support structure includes a second stiffening plate and a stiffening end plate. The second stiffening plate extends along the length direction of the lower support structure and its two opposite ends along its own length direction are connected to the inner wall surface of the lower support structure. The stiffening end plate is connected to the end of the second stiffening plate away from the elliptical node plate. The end of the second stiffening plate is close to the elliptical node plate and is connected to both the elliptical node plate and the first stiffening plate.

[0012] According to the present invention, a flat plate connection node for the intersection of complex spatial rods is provided, wherein the end of the second stiffening plate near the elliptical node plate forms a first side and a second side that are adjacent to each other, the first side being used to connect with the elliptical node plate, and the second side being used to connect with the first stiffening plate.

[0013] According to the present invention, a flat plate connection node for the intersection of complex spatial rods is provided, wherein the thickness of the first stiffening plate is greater than the thickness of the second stiffening plate or the stiffening end plate.

[0014] According to the present invention, a flat plate connection node for the intersection of complex spatial rods is provided, wherein the first stiffening plate and the elliptical node plate are perpendicularly connected to each other.

[0015] According to the present invention, a flat plate connection node for the convergence of complex spatial rods is provided, wherein the connection positions of the plurality of upper spatial rods and the elliptical node plate are located inside the overall range formed by the connection positions of the plurality of lower support structural members and the elliptical node plate.

[0016] According to the present invention, a flat plate connection node for the intersection of complex spatial rods is provided, wherein multiple lower support structural members are connected by intersecting welding.

[0017] According to the present invention, a flat plate connection node for the intersection of complex spatial rods is provided, which further includes a lower support structure comprising an irregular column and an irregular ring beam. The irregular column and the irregular ring beam are welded together, and the irregular ring beam is connected to the upper side of the irregular column near the elliptical node plate.

[0018] According to the present invention, a flat plate connection node for the convergence of complex spatial rods is provided, wherein multiple upper spatial rods are arranged radially from the center.

[0019] This utility model also provides a building structure, including a supporting foundation and a flat plate connection node as described above for the convergence of complex spatial rods, wherein the lower supporting structure is installed on the supporting foundation.

[0020] This utility model provides a flat plate connection node for the intersection of complex spatial members. By setting an elliptical node plate, it has clearly defined first and second connection surfaces. The first connection surface is used to connect with multiple lower supporting structural members, and the second connection surface is used to connect with multiple upper spatial members. By adjusting the size and position of the elliptical node plate, sufficient welding space is ensured when the members intersect. Compared to traditional intersecting or spherical nodes, which require complex welding processes and multi-directional connections, the elliptical node plate greatly simplifies the node's structural form through planar connection, facilitating installation. Furthermore, the rational arrangement of the elliptical node plate, the first stiffening plate, and the supporting structure stiffening components ensures reliable force transmission. As the core connection component, the elliptical node plate effectively transfers the load of the upper spatial members to the lower supporting structural members. Simultaneously, the first stiffening plate and the supporting structure stiffening components further disperse and transfer the load, effectively avoiding weld concentration and stress concentration problems, and meeting the strength and stiffness requirements of the node. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of a flat plate connection node for the intersection of complex spatial rods provided by this utility model.

[0023] Figure 2 yes Figure 1 An exploded view of a flat plate connection node used for the intersection of complex spatial rods.

[0024] Figure 3 yes Figure 1 A front view of a flat plate connection node used for the intersection of complex spatial rods.

[0025] Figure 4 yes Figure 1 A top view of a flat plate connection node used for the intersection of complex spatial rods.

[0026] Figure 5 yes Figure 4 Sectional view at point AA.

[0027] Figure label:

[0028] 10. Flat plate connection nodes for the intersection of complex spatial rods;

[0029] 100. Lower support structure component; 110. Irregular column; 120. Irregular ring beam; 200. Upper spatial member; 300. Elliptical node plate; 310. First connecting surface; 320. Second connecting surface; 400. First stiffening plate; 500. Support structure stiffening assembly; 510. Second stiffening plate; 511. First side; 512. Second side; 520. Stiffening end plate. Detailed Implementation

[0030] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0031] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0033] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0035] The following is combined Figures 1 to 5 The present invention provides a detailed description of the flat plate connection node for the intersection of complex spatial rods through specific embodiments and application scenarios.

[0036] In the embodiments of this utility model, such as Figure 1 and Figure 2 As shown, a flat plate connection node 10 for the convergence of complex spatial rods includes multiple lower support structures 100, multiple upper spatial rods, an elliptical node plate 300, a first stiffening plate 400, and a support structure stiffening assembly 500. The elliptical node plate 300 has a first connecting surface 310 and a second connecting surface 320 arranged opposite to each other along its thickness direction. The first connecting surface 310 is used to connect with multiple lower support structures 100, and the second connecting surface 320 is used to connect with multiple upper spatial rods. The first stiffening plate 400 is connected to the first connecting surface 310, and two mutually abutting lower support structures 100 are respectively connected to opposite sides of the first stiffening plate 400. The support structure stiffening assembly 500 is disposed inside the lower support structure 100 and connected to the inner wall of the lower support structure 100. The support structure stiffening assembly 500 is close to the end of the elliptical node plate 300 and is connected to both the elliptical node plate 300 and the first stiffening plate 400.

[0037] Multiple lower support structural members 100 serve as connecting links between the node and the foundation structure, ultimately distributing the loads transmitted from the node to the foundation. In complex spatial structures, loads often originate from multiple directions. The arrangement of multiple lower support structural members 100 allows them to absorb force flows from different directions, preventing individual components from failing due to excessive stress. Simultaneously, they collectively constitute the lower support system of the node, providing a stable installation foundation for the entire node and even the superstructure, ensuring that the structure does not experience overall instability under load.

[0038] Multiple upper spatial members serve as direct channels for transferring loads from the roof grid structure to the nodes. Upper spatial members in different directions correspond to different branches of the grid structure, converging the roof's self-weight, wind, snow, and other loads at the nodes. Due to the diverse grid layouts in complex spatial structures, the presence of multiple upper spatial members can accommodate grid elements at different angles and positions, ensuring that loads are smoothly transferred to the nodes from all directions and preventing uneven local stress distribution in the structure due to missing load transfer paths.

[0039] The elliptical node plate 300, through the design of the first connecting surface 310 and the second connecting surface 320, clearly separates the connection areas of the upper spatial members and the lower supporting structural members 100, ensuring that the connections between the upper and lower structures do not interfere with each other. This layered connection method avoids spatial congestion when multiple members directly intersect, allowing each connection point to have independent operating and stress-bearing space. Compared to other shapes, the elliptical contour design provides a larger peripheral space within the same area. Combined with its adjustable size and position, it can be flexibly adjusted according to the number and angle of the upper spatial members and the lower supporting structural members 100, ensuring sufficient space for welding each member to the node plate, fundamentally solving the problem of weld stacking in traditional intersecting nodes. The planar structural characteristics enable it to initially diffuse the concentrated loads transmitted from multiple upper spatial members, making the load distribution on the node plate more uniform, creating favorable conditions for subsequent force flow to be further transmitted through stiffening components, and reducing the stress value in local areas.

[0040] The first stiffening plate 400 is connected to the first connecting surface 310 of the elliptical node plate 300, forming a perpendicular force-bearing assembly with the node plate, significantly improving the bending stiffness of the node plate. When the node plate is subjected to upper loads and tends to bend, the first stiffening plate 400 can provide effective restraint reaction force, preventing excessive deformation of the node plate and ensuring its load-bearing capacity. For the two interlocking lower support structural members 100, the first stiffening plate 400 acts as a "bridge". The two lower support structural members 100 are connected to their opposite sides, allowing the force at the joint to be smoothly transmitted to the node plate through the first stiffening plate 400, avoiding stress concentration caused by direct force transmission at the joint, and enhancing the overall stiffness of the joint of the lower structure.

[0041] The stiffening assembly 500 of the supporting structure is disposed inside the lower supporting structure member 100 and connected to the inner wall, which can effectively improve the local deformation resistance of the lower supporting structure member 100. When the lower structure bears the load transmitted from the nodes, it can resist buckling or indentation caused by excessive local stress, ensuring the integrity of the lower structure. Since it is connected to the elliptical node plate 300, the first stiffening plate 400 and the inner wall of the lower supporting structure member 100 at the same time, a multi-directional force flow transmission network is formed. The load from the node plate can be transmitted to the interior of the lower structure through it, and the force from the first stiffening plate 400 can also be distributed to the lower structure through it, realizing multi-path transmission of force flow, making the load more evenly distributed in the lower structure, and completely eliminating the hidden danger of stress concentration.

[0042] This application utilizes an elliptical node plate 300 with clearly defined first connecting surface 310 and second connecting surface 320. The first connecting surface 310 connects to multiple lower supporting structural members 100, and the second connecting surface 320 connects to multiple upper spatial members. By adjusting the size and position of the elliptical node plate, sufficient welding space is ensured when the members intersect. Compared to traditional intersecting nodes or ball joints, which require complex welding processes and multi-directional connections, the elliptical node plate 300 simplifies the node's structural form and facilitates installation through planar connections. Furthermore, the rational arrangement of the elliptical node plate 300, the first stiffening plate 400, and the supporting structure stiffening assembly 500 ensures reliable force transmission. As a core connecting component, the elliptical node plate 300 effectively transfers the load from the upper spatial members to the lower supporting structural members 100. Simultaneously, the first stiffening plate 400 and the supporting structure stiffening assembly 500 further disperse and transmit the load, effectively avoiding weld concentration and stress concentration problems, and meeting the strength and stiffness requirements of the node.

[0043] Reference Figures 2 to 5 According to the present invention, a flat plate connection node 10 for the intersection of complex spatial rods is provided. The support structure stiffening assembly 500 includes a second stiffening plate 510 and a stiffening end plate 520. The second stiffening plate 510 extends along the length direction of the lower support structure 100 and its two ends opposite each other along its own length direction are connected to the inner wall surface of the lower support structure 100. The stiffening end plate 520 is connected to the end of the second stiffening plate 510 away from the elliptical node plate 300. The end of the second stiffening plate 510 is close to the elliptical node plate 300 and is connected to both the elliptical node plate 300 and the first stiffening plate 400.

[0044] Understandably, the end of the second stiffening plate 510 near the elliptical node plate 300 is connected to both the elliptical node plate 300 and the first stiffening plate 400. This allows the forces transmitted from the upper spatial members through the elliptical node plate 300 and the first stiffening plate 400 to be more evenly distributed along the length of the lower supporting structural member 100. This avoids force concentration in localized areas, reduces stress concentration, and enables the lower supporting structural member 100 to more effectively bear and transmit loads, thereby improving the overall mechanical performance of the connection node.

[0045] The stiffening end plate 520 is connected to the inner wall of the lower support structure 100, which can further distribute the force transmitted from the second stiffening plate 510 to a larger area of ​​the lower support structure 100. At the same time, it can also act as a force transmission medium, transmitting the force to other parts of the lower support structure 100, so that the entire lower support structure 100 can bear the load more evenly and improve the overall load-bearing capacity of the structure.

[0046] Reference Figure 2 and Figure 5 According to the present invention, a flat plate connection node 10 for the intersection of complex spatial rods is provided. The end of the second stiffening plate 510 near the elliptical node plate 300 forms a first side 511 and a second side 512 that are adjacent to each other. The first side 511 is used to connect with the elliptical node plate 300, and the second side 512 is used to connect with the first stiffening plate 400.

[0047] Understandably, the reliable connection between the first side 511 and the elliptical node plate 300 enables the second stiffening plate 510 to be tightly integrated with the elliptical node plate 300, forming an organic whole. During stress, the two can work together to share and transmit forces, fully utilizing their respective material properties and improving the mechanical properties and working efficiency of the entire connection node.

[0048] The second side 512 connects to the first stiffening plate 400, further enriching the stiffening system. This allows the second stiffening plate 510 and the first stiffening plate 400 to work together to form a more complete and effective stiffening network. This better constrains and supports the node plate, limits its deformation, and improves the overall stiffness of the node, thereby enhancing the stability of the node under complex spatial stress environments.

[0049] In some embodiments, the thickness of the first stiffening plate 400 is greater than the thickness of the second stiffening plate 510 or the stiffening end plate 520.

[0050] Understandably, the first stiffening plate 400 is connected to the first connecting surface 310 of the elliptical node plate 300, and its two sides are respectively connected to the mutually mating lower support structural members 100. It is the direct intersection point of the upper load (transmitted through the node plate) and the lateral force (butt shear force) of the lower structure. Its stress state is complex, and it needs to withstand vertical pressure, horizontal shear force, and local bending moment simultaneously. Increasing its thickness can improve its cross-sectional moment of inertia and shear area, ensuring that buckling or shear failure does not occur under the action of multi-directional force flow, and providing rigid support for the core area of ​​the node.

[0051] Reference Figure 5 According to the present invention, a flat plate connection node 10 for the intersection of complex spatial rods is provided, wherein a first stiffening plate 400 and an elliptical node plate 300 are perpendicularly connected to each other.

[0052] Understandably, the vertical connection allows the first stiffening plate 400 and the elliptical node plate 300 to support each other under stress. When the node is subjected to bending moment, the first stiffening plate 400 can bear part of the bending stress, reduce the bending deformation borne by the elliptical node plate 300, improve the overall bending resistance of the node, and ensure that the node can maintain a stable structural form under complex spatial stress environment, thus ensuring structural safety.

[0053] Reference Figure 3 According to the present invention, a flat plate connection node 10 for the convergence of complex spatial rods is provided, wherein the connection positions of multiple upper spatial rods and elliptical node plates 300 are located inside the overall range formed by the connection positions of multiple lower support structure members 100 and elliptical node plates 300.

[0054] Understandably, the lower support structure 100 bears the responsibility of transferring the weight of the entire structural system and external loads to the foundation. When the connection point of the upper spatial members is located inside the area formed by the connection points of the lower support structure 100, the force transmission path is more direct and efficient. The force transmitted from the upper spatial members can be more effectively transferred to the lower support structure 100 through the elliptical node plate 300, reducing eccentricity and bending moment during force transmission, and mitigating stress concentration caused by the complex stress on the node plate, thereby improving the load-bearing capacity of the node.

[0055] Reference Figure 3 According to the present invention, a flat plate connection node 10 for the intersection of complex spatial rods is provided, wherein multiple lower support structural members 100 are connected by intersecting welding.

[0056] Intersecting welding is a process that connects two or more members at their intersection by welding them together. In flat plate connection nodes where members in complex spaces intersect, the lower support structure 100 plays a crucial supporting role. Intersecting welding connects these members to form a stable connection structure. This ensures that each lower support structure 100 works collaboratively under load, jointly bearing forces from the upper structure or other directions, preventing loosening or separation due to weak connections, and thus guaranteeing the structural integrity of the entire connection node.

[0057] Reference Figure 3 According to the present invention, a flat plate connection node 10 for the intersection of complex spatial rods is provided, which also includes a lower support structure 100 including an irregular column 110 and an irregular ring beam 120. The irregular column 110 and the irregular ring beam 120 are welded together, and the irregular ring beam 120 is connected to the upper side of the irregular column 110 near the elliptical node plate 300.

[0058] Understandably, the irregular column 110 and the irregular ring beam 120 are connected by intersecting welds to form a composite support system. The irregular column 110 mainly bears the vertical load, while the irregular ring beam 120 plays a role in lateral connection and restraint. The two work together to significantly improve the overall stability and resistance to lateral displacement of the node.

[0059] Reference Figure 3 and Figure 4 According to the present invention, a flat plate connection node 10 for the convergence of complex spatial rods is provided, wherein multiple upper spatial rods are arranged radially from the center.

[0060] Understandably, the upper spatial members are arranged radially from the center, allowing the load to be evenly distributed to the elliptical node plate 300 from all directions. This effectively avoids load concentration in a specific area, thereby reducing stress concentration.

[0061] This utility model also provides a building structure, which includes a supporting foundation and a flat plate connection node 10 for the convergence of complex spatial rods as described above. The lower supporting structure 100 is installed on the supporting foundation. The specific structure of the flat plate connection node 10 for the convergence of complex spatial rods is as described in the above embodiments. It can be understood that since the flat plate connection node 10 for the convergence of complex spatial rods is used in the building structure, the embodiments of this building structure include all the technical solutions of all the embodiments of the flat plate connection node 10 for the convergence of complex spatial rods, and the technical effects achieved are exactly the same, so they will not be repeated here.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Images