INTEGRATING ETABS WITH BUILDING INFORMATION MODELLING (BIM) FOR INTELLIGENT STRUCTURAL ENGINEERING

Abstract

Because it allows for integrated workflows between architectural modeling platforms and finite element analysis (FEA) software, Building Information Modeling (BIM) has greatly altered structural engineering practice. The disparities in data representation, analytical model generation, and information communication standards make it very difficult for BIM authoring tools and structural analysis environments to reliably share structural information. This research examines the reliability of BIM-to-FEM transfer procedures using Autodesk Revit and CSI ETABS by systematically evaluating native API-mediated and IFC-based approaches. Through the use of elementbased accuracy measures that took into account columns, beams, slabs, analytical alignments, and nodes, we assessed the structural information exchange in a five-story reinforced concrete residential structure that served as a case study. Although the analytical axes, node connectivity, and slab section characteristics had to be corrected by hand, the native Revit-ETABS process managed to achieve full transfer reliability for main structural members, with 100% accurate interpretation of beams and columns. While the IFC-based process was more dependable when it came to transferring geometric information, it was less accurate when it came to assigning member properties and interpreting slabs. Instead of a totally automated conversion technique, the findings show that BIMto-FEM interoperability is still a somewhat automated process that needs rigorous verification. To lessen the burden of human correction and increase dependability, we offer an integration process based on checkpoints that uses controlled modeling methods, validates models after transfer, and coordinates federated models. The results add to our knowledge of the constraints on BIM and FEM platform compatibility and provide useful recommendations for structural engineering firms using Revit-ETABS-based BIM processes.