A Parametric BIM Approach for Bridge Design and Analysis

Bridges are complex structures in several aspects, from design to construction, mainly due to their complicated and constrained geometry, high design loads and unique boundary conditions. Moreover, the narrow schedules and the demand for efficiency in the civil engineering industry require a new approach. The Parametric BIM approach removes repetitive time-consuming tasks by introducing parameters and numerical relationships between them. This enhances the design process, increasing efficiency and reducing time and effort. This paper presents a methodology for the development of the geometrical model of different bridge typologies through the modification of input parameters. The approach is applied to composite and concrete box girders bridges, enabling efficient analysis of different structural configurations to explore a range of innovative cost-effective solutions. Thus, the workflow is proposed as a supportive tool for decision-making in the design of new complex structures.