The advancing digitization in the building industry highlights weak points in the digital infrastructure. Due to heterogeneous software landscapes, cross-application data exchange is a frequently criticized process in particular, for which no satisfying solution exists so far. Open and application-independent data formats are necessary and therefore the current research project SCOPE focuses on developing such formats by applying Semantic Web Technologies. This article proposes an approach that enriches a graph with relevant information for structural design and provides the enhanced description as a calculation basis for structural analysis software. A novel ontology, the TDY-Ontology, is designed to connect geometry descriptions with structural-specific semantic information, like the standard of the analysis to be executed, bearing arrangements, bedding of floor slabs or the definition of joints and loads.