An Integrated BIM-FEM Framework for the Digitalization of Civil Engineering Projects

This study proposes a semi-automated integration framework that combines Building Information Modeling (BIM) and the Finite Element Method (FEM) to support the digital transformation of civil engineering. Traditional workflows often separate BIM and FEM, leading to data loss, duplicated modeling, and inefficiencies. The proposed framework bridges this gap by enabling structured data transfer from BIM platforms to FEM simulation tools through a streamlined and standardized process.The framework includes five core stages: 3D slope modeling, geotechnical parameter structuring, data conversion using Feature Manipulation Engine (FME), simulation in PLAXIS 3D, and result validation. A real-world slope case in western China was used to verify the workflow under two conditions: staged construction and rainfall infiltration.The results show that over 95% of model data were preserved during conversion, and total modeling time was reduced by approximately 40%. The framework accurately captured displacement patterns and safety factor variations, confirming its effectiveness. This research contributes a practical and scalable approach to integrating design modeling and numerical analysis, advancing digital civil engineering workflows.