Life cycle assessment of composite footbridges in a postgraduate optimization course through a case study

Abstract

[EN] This paper describes how, through a case study, the life cycle assessment methodology is introduced in a postgraduate course. This case study is carried out within the framework of the predictive models of optimization of concrete structures subject of the master s degree in concrete engineering. This course introduces students to methods like the optimization of structures through the application of algorithms, and other concepts like multi-criteria decision making, design of experiments, and methods of prediction and regression. In this case study, the life cycle assessment of a simply supported 28 m span length mixed footbridge is carried out. The section is composed of a metal beam that supports a concrete slab, both elements are joined by shape connectors. The geometric definition is carried out applying an optimization algorithm. To carry out the analysis, the students will use the Ecoinvent database, and must make different hypothesis about the scenarios used for the procedures. As a result of applying logic to solve a case study using specific software and deducing the impact of a construction; this activity will help students to acquire different transversal competencies, such as ethical and environmental responsibility, knowledge of contemporary problems, critical thinking, and specific instrumental use, all of them framed within the institutional project of the Universitat Politècnica de València. This paper will introduce future studies related to the life cycle assessment of footbridges, not only from an energetic and environmental point of view but also an economic and social one.