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BIM Lightweight Technology in Water Conservancy Engineering Operation and Maintenance: Improvement of the QEM Algorithm and Construction of the Evaluation System.

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Název: BIM Lightweight Technology in Water Conservancy Engineering Operation and Maintenance: Improvement of the QEM Algorithm and Construction of the Evaluation System.
Autoři: Zhan, Zhengjie, Tang, Zihao, He, Lihong, Ding, Junzhi
Zdroj: Water (20734441); Oct2025, Vol. 17 Issue 20, p2929, 21p
Témata: HYDRAULIC engineering, BUILDING information modeling, WATER conservation projects, EVALUATION methodology, COMPUTER performance, ALGORITHMS, APPLIED sciences
Abstrakt: In recent years, with continuous technological advances, BIM technology has gradually expanded from the traditional construction industry into the field of hydraulic engineering. Since BIM models, which span the entire project lifecycle, contain substantial amounts of data and the operation and maintenance phase accounts for the majority of this lifecycle, higher computational demands are imposed. Consequently, the lightweighting of BIM models has become imperative. In this study, an improved Quadric Error Metric (QEM) algorithm was applied to simplify the geometric data of the constructed BIM model. The research investigates whether the lightweight model can reduce the computational requirements during its application in the operation and management of hydraulic engineering, thereby enhancing its general applicability. Furthermore, a fuzzy comprehensive evaluation model was established to assess the effectiveness of the lightweighting process. The experimental results indicate that the optimized model occupies significantly less memory space. Additionally, model loading time and rendering CPU usage were substantially improved. The lightweight effect was evaluated as excellent based on the fuzzy comprehensive evaluation. [ABSTRACT FROM AUTHOR]
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Databáze: Biomedical Index
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Abstrakt:In recent years, with continuous technological advances, BIM technology has gradually expanded from the traditional construction industry into the field of hydraulic engineering. Since BIM models, which span the entire project lifecycle, contain substantial amounts of data and the operation and maintenance phase accounts for the majority of this lifecycle, higher computational demands are imposed. Consequently, the lightweighting of BIM models has become imperative. In this study, an improved Quadric Error Metric (QEM) algorithm was applied to simplify the geometric data of the constructed BIM model. The research investigates whether the lightweight model can reduce the computational requirements during its application in the operation and management of hydraulic engineering, thereby enhancing its general applicability. Furthermore, a fuzzy comprehensive evaluation model was established to assess the effectiveness of the lightweighting process. The experimental results indicate that the optimized model occupies significantly less memory space. Additionally, model loading time and rendering CPU usage were substantially improved. The lightweight effect was evaluated as excellent based on the fuzzy comprehensive evaluation. [ABSTRACT FROM AUTHOR]
ISSN:20734441
DOI:10.3390/w17202929