Optimization of Trusses in Building Information Modeling Projects
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  • Release Date: 2024-06-04
  • structural optimization
  • genetic algorithm
  • parametric design
  • visual programming
  • generative modeling
  • life cycle assessment
  • finite element modeling
Video Introduction

This video is adapted from 10.3390/buildings14061532

The optimal structural design is imperative in order to minimize material consumption and reduce the environmental impacts of construction. Given the complexity in the formulation of structural design problems, the process of optimization is commonly performed using artificial intelligence (AI) global optimization, such as the genetic algorithm (GA). However, the integration of AI-based optimization, together with visual programming (VP), in building information modeling (BIM) projects warrants further investigation. This research proposes a workflow by combining structure analysis, VP, BIM, and GA to optimize trusses. The methodology encompasses several steps, including the following: (i) generation of parametric trusses in Dynamo VP; (ii) performing finite element modeling (FEM) using Robot Structural Analysis (RSA); (iii) retrieving and evaluating the FEM results interchangeably between Dynamo and RSA; (iv) finding the best solution using GA; and (v) importing the optimized model into Revit, enabling the user to perform simulations and engineering analysis, such as life cycle assessment (LCA) and quantity surveying. This methodology provides a new interoperable framework with minimal interference with existing supply-chain processes, and it will be flexible to technology literacy and allow architectural, engineering and construction (AEC) professionals to employ VP, global optimization, and FEM in BIM-based projects by leveraging open-sourced software and tools, together with commonly used design software. The feasibility of the proposed workflow was tested on benchmark problems and compared with the open literature. The outcomes of this research offer insight into the opportunities and limitations of combining VP, GA, FEA, and BIM for structural optimization applications, particularly to enhance structural efficiency and sustainability in construction. Despite the success of this research in developing a workable, user-friendly, and interoperable framework for the utilization of VP, GA, FEM, and BIM for structural optimization, the results obtained could be improved by (i) increasing the callback function speed between Dynamo and RSA through specialized application programming interface (API); and (ii) fine-tuning the GA parameters or utilizing other advanced global optimization and supervised learning techniques for the optimization.

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Yavan, F.; Maalek, R.; Toğan, V. Optimization of Trusses in Building Information Modeling Projects. Encyclopedia. Available online: https://encyclopedia.pub/video/video_detail/1279 (accessed on 16 June 2024).
Yavan F, Maalek R, Toğan V. Optimization of Trusses in Building Information Modeling Projects. Encyclopedia. Available at: https://encyclopedia.pub/video/video_detail/1279. Accessed June 16, 2024.
Yavan, Feyzullah, Reza Maalek, Vedat Toğan. "Optimization of Trusses in Building Information Modeling Projects" Encyclopedia, https://encyclopedia.pub/video/video_detail/1279 (accessed June 16, 2024).
Yavan, F., Maalek, R., & Toğan, V. (2024, June 04). Optimization of Trusses in Building Information Modeling Projects. In Encyclopedia. https://encyclopedia.pub/video/video_detail/1279
Yavan, Feyzullah, et al. "Optimization of Trusses in Building Information Modeling Projects." Encyclopedia. Web. 04 June, 2024.
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