3D Structural Member Modeling for Rebar Interference Visualization
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Solution Overview
Problem
Conventional 2D and 3D design-based modeling methods struggle to accurately identify errors in complex building structures, particularly with densely arranged structural members like steel bars, leading to delayed error discovery and increased rework and safety issues during construction.
Innovation Solution
A method and device for 3D modeling of structural members that extracts and processes information from design drawings to create detailed 3D models, including material strength, covering thicknesses, shapes, and location data, with features like alternating display of steel bars to visually separate overlapping elements and display connection relationships, enhancing design accuracy and construction efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional 2D design-based modeling methods are used, then the design process is simple, but errors in complex building structures cannot be accurately identified
Solution Approach 1:
The patent transitions from 2D design-based modeling to 3D space-based modeling. By representing structural members in three-dimensional space with precise coordinates and spatial relationships, the system enables accurate identification of errors, interferences, and construction issues that cannot be detected in 2D plans. This dimensional upgrade directly resolves the contradiction by providing superior measurement precision while accepting increased modeling complexity.
2Difficulty of detecting and measuring
If conventional 3D design-based modeling technology is used, then visualization is improved, but interference and exact location of complex building structures cannot be clearly grasped
Solution Approach 1:
The patent segments the building structure into individual structural members, each represented as a distinct object with specific spatial coordinates, dimensions, and properties. This segmentation allows the system to detect interferences and exact locations of specific members independently, resolving the issue of unclear visualization in conventional 3D modeling. Each segmented member can be individually analyzed for conflicts and construction errors.
Solution Approach 2:
The patent employs visual differentiation through color coding to represent various structural members and their states. Different colors indicate different member types, materials, or conflict statuses, enabling clear visual grasping of complex spatial relationships and interferences. This visual enhancement directly addresses the difficulty of detecting and measuring structural issues in conventional 3D models.
3Ease of operation
If steel bars are displayed without moving in column, then the model is simple, but overlapping steel bars cannot be visually separated
Solution Approach 1:
The patent implements dynamic display capabilities where steel bars can be visually separated or overlapped based on user interaction or system settings. The system allows users to toggle between different display modes: one showing steel bars at their exact positioned locations, and another that visually separates overlapping bars for clearer inspection. This dynamic approach resolves the contradiction by maintaining operational simplicity while enabling visual separation when needed.
Data Source
AI summary
Disclosed is a method for three-dimensional (3D) modeling of structural members of a building, which is performed by a processor. The method for 3D modeling of the structural members of the building, which is performed by the processor, includes extracting at least one of information on a material strength corresponding to use of the building and information on covering thicknesses of steel bars corresponding to the structural members of the building from a design drawing of the building, extracting information on shapes of the steel bars for the structural members from the design drawing, extracting location information on the structural members from the design drawing, and defining at least one of the information on the material strength, the information on the covering thicknesses, the information on the shapes of the steel bars, and the location information as data of the structural members, wherein, when the structural members constitute a column, the data of the structural members corresponds to the steel bars extending in a height direction of the column, and includes first information for determining whether to move the steel bars forming the column and display the steel bars on a display, the first information includes a first value that is displayed on the display without moving the steel bars and a second value that is displayed on the display after moving the steel bars, and is set so that the first value and the second value alternately correspond to the steel bars sequentially located in the height direction of the column.