This study presents a comprehensive framework for applying Building Information Modelling (BIM) tools to retrofit existing structures with improved accuracy and efficiency. BIM platforms such as Autodesk Revit are used to develop precise 3D as-built models that capture geometric, structural, and material details of existing buildings. By incorporating point-cloud data and field measurements, these models provide a reliable digital representation of actual site conditions, reducing uncertainties and enhancing visualization for informed decision-making during retrofit planning. This paper present, the focus was on developing accurate BIM-based models and performing structural analysis and optimization. Tools such as Autodesk Revit 2025, SketchUp, and STAAD Pro were integrated to enable detailed modelling, simulation, and performance evaluation. The as- built BIM models served as a foundation for structural assessment in STAAD Pro, facilitating the identification of deficiencies and the selection of appropriate strengthening strategies. This integrated workflow ensured safe, coordinated, and cost-effective retrofit design while improving overall project efficiency. The outcomes of this phase demonstrate the effectiveness of BIM in supporting retrofit design through accurate modelling and structural analysis. Focus on clash detection, design coordination, and synchronized model updates to further enhance project integration. Overall, the proposed BIM-based workflow establishes a structured approach to retrofitting that integrates 3D modelling, analysis, and cost/schedule management, contributing to reduced errors and more efficient, data-driven delivery in civil and infrastructure engineering.
Landage et al. (Thu,) studied this question.
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