Parametric modeling method of a modular building joint
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-12
- Publication Date
- 2026-08-11
AI Technical Summary
传统节点设计依赖人工绘制，针对不同项目需重复调整尺寸、孔位等参数，耗时耗力
1、本发明能够有效提高模块化钢结构节点的建模效率。
Smart Images
Figure CN122549028A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of digital modeling of building nodes, and in particular to a parametric modeling method for modular building nodes. Background Technology
[0002] The core of modular construction is to break down the building into three-dimensional spatial modules prefabricated in a factory, which are then quickly hoisted and assembled on site. The connection nodes between the bottom and top columns are key components for transferring vertical loads, horizontal loads, and bending moments between modules, and their performance directly affects the overall structural safety, stability, construction speed, and precision of the building.
[0003] In daily practice, the existing technical solutions have been found to have the following problems: Traditional node design relies on manual drawing, requiring repeated adjustments to parameters such as dimensions and hole positions for different projects, which is time-consuming and labor-intensive. Furthermore, existing modeling methods are prone to detail discrepancies during manual design, impacting mass production and on-site installation efficiency.
[0004] Therefore, it is necessary to provide a new technical solution to solve the above problems. Summary of the Invention
[0005] To address the aforementioned technical issues, this application provides a parametric modeling method for modular building nodes, which can effectively improve the modeling efficiency of modular steel structure nodes, while also effectively reducing errors in manual drawing and improving the accuracy of modeling.
[0006] A parametric modeling method for modular building nodes includes: S1. Decompose the modular steel structure nodes according to structural logic and divide them according to the hierarchy of connecting components and foundation components; S2. Define parameters for each disassembled basic component, and set the main control parameters and subordinate parameters; S3. Establish the linkage relationship between the master control parameters and the subordinate parameters; S4. In the Revit project environment, import the modular steel structure nodes involved in the project; S5. For non-standard nodes or special working conditions in the project, the modular steel structure nodes are parametrically modified. S6. Verify the correctness of nodes in the project and adjust any erroneous modular building nodes until the project requirements are met.
[0007] Preferably, step S1 includes: S11. Based on the principle that the modular steel structure nodes can be disassembled individually, the nodes are disassembled into several connecting components. S12. Based on the components that can be independently welded, each connecting component is divided into several independent basic components. S13. In the Revit family editor, create each basic component as an independent loadable family, and use nested family technology to build connected component families; S14. Establish geometric constraints between the basic components to ensure the correctness of the relative positions of the basic components when subsequent parameters are modified.
[0008] Preferably, in step S1, the connecting component includes a bottom corner connector, a bottom corner connecting plate, a top corner connector, a top corner connecting plate, and a middle connecting plate; the connecting component has a first connecting state, a second connecting state, and a third connecting state; In the first connection state, a bottom corner connecting plate that mates with the bottom corner connector is provided below the bottom corner connector; In the second connection state, a corresponding corner connecting plate is provided above the corner connector; In the third connection state, a middle connecting plate that mates with the top corner connector is provided above the top corner connector, and a bottom corner connector that mates with the middle connecting plate is provided above the middle connecting plate.
[0009] Preferably, in step S2, when defining parameters for each disassembled basic component, the defined parameters include geometric parameters, engineering parameters, and constraint parameters; The geometric parameters include dimensional parameters and positional parameters; The engineering parameters include material grade, bolt grade, weld grade, component number, design load, and corrosion protection grade; The constraint parameters are logical constraints between parameters.
[0010] Preferably, step S3 includes: Define node-level master control parameters; Using the Revit formula editor, establish mathematical relationships between master parameters and subordinate parameters of each nested component; The test parameters drive the effect, verify the correctness and stability of the node model under different parameter combinations, and finally form a standardized modular steel structure node parameter family library.
[0011] Preferably, step S6 includes: Use Revit's built-in collision detection function or the Navisworks collaboration platform to perform hard collision and gap collision checks on nodes and surrounding components; If the collision check fails, the system highlights the collision location and the colliding component, allowing designers to directly adjust the node-related parameters in the project environment. After parameter adjustment, the node model is automatically regenerated and a secondary collision check is triggered, and the process is iterated until all collision checks pass.
[0012] Preferably, after step S6, the method further includes: S7. Use Revit software to export node details and a bill of materials.
[0013] Preferably, step S7 includes: Use Revit's detailing function to automatically generate construction details that meet design and construction requirements; Extract all engineering information from the parametric model and automatically generate the corresponding bill of materials. Compared with the prior art, this application has at least the following beneficial effects: 1. This invention can effectively improve the modeling efficiency of modular steel structure nodes.
[0014] 2. This invention adopts a fully digital design process, avoiding errors and omissions in manual drawing and statistics, and improving the accuracy of modeling.
[0015] 3. This invention can use node parameters to drive modeling, effectively improving the standardization level of steel structure node modeling.
[0016] 4. This invention can ensure that the node parameters are consistent with the actual production connection parts, realize the embedding of enterprise standard rules into the modeling process, and ensure 100% compliance with process requirements. Attached Figure Description
[0017] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings: Figure 1 This is a schematic diagram of the overall process of the present invention; Figure 2 This is a first-view schematic diagram of the connecting component disassembled into a basic component in an embodiment of the present invention; Figure 3 This is a first-view schematic diagram of the connecting component disassembled into a basic component in an embodiment of the present invention; Figure 4 This shows the correspondence between some parameters and dimensions in the front view of the connecting component in an embodiment of the present invention; Figure 5 This shows the correspondence between some parameters and dimensions in the right view of the connecting component in an embodiment of the present invention. Figure 6 This shows the correspondence between some parameters and dimensions in the front view of the connecting component in an embodiment of the present invention; Figure 7This shows the correspondence between some parameters and dimensions in the right view of the connecting component in an embodiment of the present invention. Figure 8 This is a diagram illustrating the parameter diagram of the connecting component after it has been broken down into basic components in an embodiment of the present invention; Figure 9 This is a schematic diagram illustrating the component selection when loading the connecting component into the steel structure frame in an embodiment of the present invention; Figure 10 This is a schematic diagram of the overall structure after the connecting components are loaded into the steel structure frame in an embodiment of the present invention; Figure 11 This is a schematic diagram of a bill of materials exported using Revit software in an embodiment of the present invention. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0019] like Figure 1 As shown, a parametric modeling method for modular building nodes includes: S1. Decompose the modular steel structure nodes according to structural logic and divide them according to the hierarchy of connecting components and foundation components.
[0020] This stage forms the foundation of the entire modeling methodology. By modularly decomposing and parametrically defining steel structure nodes, a reusable and driveable standardized node family library is constructed.
[0021] Specifically, including: S11. Based on the principle that the modular steel structure nodes can be disassembled individually, the nodes are disassembled into several connecting components.
[0022] Since the modular steel structure node is fixedly connected in a detachable manner, it is an independent component that can be manufactured in the factory. Therefore, in this solution, the modular steel structure node is disassembled into several independent connecting parts.
[0023] In this embodiment, the connecting component includes a bottom corner connector, a bottom corner connecting plate, a top corner connector, a top corner connecting plate, and a middle connecting plate, and the connecting component has a first connecting state, a second connecting state, and a third connecting state.
[0024] In the first connection state, a bottom corner connecting plate is provided below the bottom corner connector to mate with it. In the second connection state, a top corner connecting plate is provided above the top corner connector to mate with it. In the third connection state, a middle connecting plate is provided above the top corner connector to mate with it, and a bottom corner connector is provided above the middle connecting plate to mate with it.
[0025] S12. Based on the components that can be independently used for welding, each connecting component is divided into several independent basic components.
[0026] Each basic component is welded together from several independent components. When disassembling, each independent component is taken as the smallest unit, and the welded surface between adjacent components is taken as the disassembly surface.
[0027] In this embodiment, as Figures 2-7 As shown, the modular base plate nodes are divided into component 1, component 2, component 3, component 4, component 5, component 6, component 7, and component 8. Parameters B1, B2, DDKD, DK1, DK2, FK1, FK2, FK3, H, K1, K3, L1, L2, LDD, LK1, S1, S2, t1, t2, t3, and t4 are set. B1 represents the width of the longitudinal main beam; B2 represents the width of the short main beam; DDKD represents the width of the bottom hoisting hole; DK1 represents the width of the lateral mounting hole; DK2 represents the height of the lateral mounting hole; FK1 represents the bolt hole length; FK2 represents the bolt hole width; FK3 represents the bolt hole spacing; H represents the total height of the node; K1 represents the distance from the bottom hoisting hole to component 6 and the distance from the bottom hoisting hole to component 4; K3 represents the distance from the lateral mounting hole to component 2; L1 represents the total length of component 4; L2 represents the distance from component 6 to the short main beam; LDD represents the height of the lateral drainage hole; LK1 represents the height of component 7; S1 represents the distance from the center of the circular bolt hole 1 on component 1 to the short main beam; S2 represents the distance from the center of the circular bolt hole 2 on component 1 to component 6; t1 represents the thickness of components 3, 5, 6, 7, and 8; t2 represents the thickness of component 2; t3 represents the thickness of component 1; t4 represents the thickness of component 4.
[0028] S13. In the Revit Family Editor, create each basic component as an independent loadable family, and use nested family technology to build connected component families.
[0029] S14. Establish geometric constraints between the basic components to ensure the correctness of the relative positions of the basic components when subsequent parameters are modified.
[0030] In this embodiment, in the Revit family editor, components 1 to 8 are connected through geometric constraints between the basic components to construct instance 1 and name it. These geometric constraints include fit constraints, concentric constraints, and alignment constraints.
[0031] S2. Define parameters for each disassembled basic component, and set the main control parameters and subordinate parameters.
[0032] Specifically, in the Revit family editor, when defining parameters for each disassembled basic component, the defined parameters include geometric parameters, engineering parameters, and constraint parameters, such as... Figure 8 As shown.
[0033] Furthermore, based on the size requirements of each connecting component, the values of each parameter of each basic component can be changed, and multiple instances such as Instance 2 and Instance 3 can be set and named.
[0034] Geometric parameters include dimensional and positional parameters. Engineering parameters include material grade, bolt grade, weld grade, component number, design load, and corrosion protection grade.
[0035] Constraint parameters are logical constraints between parameters. By setting constraint parameters, geometric errors or engineering inconsistencies can be avoided when modifying parameters. For example, bolt hole diameter = bolt diameter + 2mm; connecting plate thickness ≥ 1 / 4 of bolt diameter. It should be noted that constraint parameters can be set and adjusted according to the shape and size of the specific connecting components and foundation members, as well as specific design requirements.
[0036] S3. Establish the linkage relationship between the master control parameters and the subordinate parameters.
[0037] The master parameters are directly assigned by the designer according to the project requirements, and may include beam section height, column section width, bolt diameter, node load level, etc. Subordinate parameters are automatically calculated and generated from the master parameters through formulas and constraints.
[0038] By establishing the linkage between master and slave parameters in Revit software, it is possible to drive the overall node update by modifying a single parameter.
[0039] S31. Define node-level master control parameters.
[0040] S32. Using the Revit formula editor, establish mathematical relationships between the master control parameters and the subordinate parameters of each nested component.
[0041] S33. Test the effect of parameter-driven testing, verify the correctness and stability of the node model under different parameter combinations, and finally form a standardized modular steel structure node parameter family library.
[0042] S4. In the Revit project environment, import the modular steel structure nodes involved in the project.
[0043] In the Revit project environment, integrating parametric node models with the main structural model allows for intelligent node retrieval and insertion via a dedicated interactive plugin developed based on the Revit API. This enables automatic alignment and connection constraints between nodes and the main steel structural members (beams, columns, etc.) in the project, completing node positioning with a single click. Simultaneously, it automatically inherits the cross-sectional parameters of the main structural members, initially matching the default dimensions of the nodes.
[0044] During import, node families can be filtered based on multiple criteria such as node type, connecting member cross-section, load level, and project location. Figure 9 As shown. Load the components into the overall model as needed, place them in the appropriate positions, connect them to the beams and columns, select an instance from the drop-down menu, set the node dimensions according to the beam and column dimensions in the overall model, and load the connecting components into the overall structure of the steel frame, as shown. Figure 10 As shown.
[0045] S5. For non-standard nodes or special working conditions in the project, modify the modular steel structure nodes parametrically.
[0046] In the Revit Properties panel or dedicated interactive interface, you can directly modify the master parameters of nodes or the dependent parameters of specific components. After the parameters are modified, the geometric dimensions and engineering properties of all related components or basic members in the node model are automatically updated in real time. Simultaneously, you can replace and customize local components or basic members, but it is necessary to ensure that the complete parametric driving capability is maintained after the modifications.
[0047] S6. Verify the correctness of nodes in the project and adjust any erroneous modular building nodes until the project requirements are met.
[0048] By establishing a closed-loop verification process of "parameter adjustment - model update - collision check", the feasibility of node design is ensured.
[0049] Specifically, using Revit's built-in clash detection function or the Navisworks collaboration platform, hard clash and gap clash checks are performed on nodes and surrounding components. If a clash check fails, the system highlights the clash location and the colliding component, allowing designers to directly adjust the node's relevant parameters within the project environment. After parameter adjustments, the node model is automatically regenerated and a secondary clash check is triggered, iterating until all clash checks pass.
[0050] The surrounding components include other steel structure components, concrete components, electromechanical pipelines, reserved holes, etc.
[0051] Furthermore, a parametric modeling method for modular building nodes also includes: S7. Use Revit software to export node details and a bill of materials.
[0052] This phase, based on the validated parametric node model, automatically generates various digital deliverables required for production and operation, enabling data integration between design and downstream processes.
[0053] Specifically, step S7 includes: automatically generating construction details that meet design and construction requirements using Revit detailing functionality.
[0054] During this process, front views, side views, sectional views, and enlarged views of nodes can be automatically generated. Simultaneously, engineering information such as dimensions, bolt specifications, weld symbols, component numbers, and material grades can be automatically labeled.
[0055] Alternatively, Revit software plugins can be used to automatically generate detailed construction drawings that meet both design and construction requirements. Commercially available Revit software plugins can achieve this function; it is a standard technical approach and will not be elaborated upon here.
[0056] The system extracts all engineering information from the parametric model and automatically generates a corresponding bill of materials. The bill of materials can be in common formats such as Excel and CSV, and can be directly used for material procurement, production cutting, and cost accounting in steel structure processing plants.
[0057] During this process, the statistical content may include component number, name, specifications, material, quantity, unit weight, total weight, bolt specifications and quantity, weld length, and anti-corrosion area. In addition, statistics can also be categorized by component type, floor, construction section, etc.
[0058] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0059] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0060] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.
[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A parametric modeling method for modular building nodes, characterized in that, include: S1. Decompose the modular steel structure nodes according to structural logic and divide them according to the hierarchy of connecting components and foundation components; S2. Define parameters for each disassembled basic component, and set the main control parameters and subordinate parameters; S3. Establish the linkage relationship between the master control parameters and the subordinate parameters; S4. In the Revit project environment, import the modular steel structure nodes involved in the project; S5. For non-standard nodes or special working conditions in the project, the modular steel structure nodes are parametrically modified. S6. Verify the correctness of nodes in the project and adjust any erroneous modular building nodes until the project requirements are met.
2. The parametric modeling method for modular building nodes as described in claim 1, characterized in that, Step S1 includes: S11. Based on the principle that the modular steel structure nodes can be disassembled individually, the nodes are disassembled into several connecting components. S12. Based on the components that can be independently welded, each connecting component is divided into several independent basic components. S13. In the Revit family editor, create each basic component as an independent loadable family, and use nested family technology to build connected component families; S14. Establish geometric constraints between the basic components to ensure the correctness of the relative positions of the basic components when subsequent parameters are modified.
3. The parametric modeling method for modular building nodes as described in claim 2, characterized in that, In step S1, the connecting component includes a bottom corner connector, a bottom corner connecting plate, a top corner connector, a top corner connecting plate, and a middle connecting plate; the connecting component has a first connecting state, a second connecting state, and a third connecting state; In the first connection state, a bottom corner connecting plate that mates with the bottom corner connector is provided below the bottom corner connector; In the second connection state, a corresponding corner connecting plate is provided above the corner connector; In the third connection state, a middle connecting plate that mates with the top corner connector is provided above the top corner connector, and a bottom corner connector that mates with the middle connecting plate is provided above the middle connecting plate.
4. The parametric modeling method for modular building nodes as described in claim 3, characterized in that, In step S2, when defining parameters for each disassembled basic component, the defined parameters include geometric parameters, engineering parameters, and constraint parameters. The geometric parameters include dimensional parameters and positional parameters; The engineering parameters include material grade, bolt grade, weld grade, component number, design load, and corrosion protection grade; The constraint parameters are logical constraints between parameters.
5. The parametric modeling method for modular building nodes as described in claim 4, characterized in that, Step S3 includes: Define node-level master control parameters; Using the Revit formula editor, establish mathematical relationships between master parameters and subordinate parameters of each nested component; The test parameters drive the effect, verify the correctness and stability of the node model under different parameter combinations, and finally form a standardized modular steel structure node parameter family library.
6. The parametric modeling method for modular building nodes as described in claim 5, characterized in that, Step S6 includes: Use Revit's built-in collision detection function or the Navisworks collaboration platform to perform hard collision and gap collision checks on nodes and surrounding components; If the collision check fails, the system highlights the collision location and the colliding component, allowing designers to directly adjust the node-related parameters in the project environment. After parameter adjustment, the node model is automatically regenerated and a secondary collision check is triggered, and the process is iterated until all collision checks pass.
7. The parametric modeling method for modular building nodes as described in any one of claims 1-6, characterized in that, Following step S6, the following is also included: S7. Use Revit software to export node details and a bill of materials.
8. The parametric modeling method for modular building nodes as described in claim 7, characterized in that, Step S7 includes: Use Revit's detailing function to automatically generate construction details that meet design and construction requirements; Extract all engineering information from the parametric model and automatically generate the corresponding material list.