A WORKFLOW FOR FEM GENERATION FROM BIM MODELS BASED ON GEOMETRIC VERIFICATION

Abstract: This extended abstract addresses the persistent gap between geometric BIM exchange and analysis-ready structural models. Although IFC supports analytical entities, exchanged models often contain geometry without the grids, axes, and connectivity definitions required for finite element analysis (FEA). A geometrydriven workflow is presented for reconstructing local axes, inferring structural grids, correcting alignment, and generating FEM models directly from IFC-derived geometry. A multistorey case study demonstrates that the reconstructed analytical model can be used for numerical analysis and produces structurally meaningful response fields. The contribution is a practical abstraction workflow that improves BIM–FEA interoperability without requiring manually authored analytical models