BIM for infrastructure: Parametric design and analysis of bridgesMedia
The file developed during this study is based on the technique of visual programming. It uses a parametric algorithm to model the bridge elements in a design software (Rhinoceros 3D and its extension Grasshopper) and allows the generation and analysis of a 3D model in a structural analysis software (Tekla Structures).
This research demonstrates the great added value of BIM to support increasingly complex business practices in the industry. The tool created for parametric modeling purposes allowed us to show the strengths of such a method: the modeling times reduced considerably as well as the performance obtained in terms of quality. Moreover, the main strength of the proposal is its adaptability to support many bridge projects. Indeed, thanks to the large number of parameters defined, it is possible to generate highly varied geometries. Contrary to direct modeling, the importance of such a parametric tool is to be able to create several models quickly at the beginning of the design, in order to provide more precise alternatives in order to support design decisions and constructability analysis.
Finally, in a context of increasing number and complexity of infrastructure projects, this study contributes to offer a practical and innovative solution for bridge modeling, which can be used in different types of projects, and which allows to answer one of the most important points of BIM implementation: to reduce design time while improving exchanges.