Proposal of Sustainability Indicators for the Design of Small-Span Bridges.

摘要: The application of techniques to analyze sustainability in the life cycle small-span bridge superstructures is presented this work. objective was obtain environmental and economic indicators for integration into decision-making process minimize impact, reduce resource consumption costs. Twenty-seven configurations bridges (6 20 m) following types were analyzed: steel-concrete composite bridges, cast situ reinforced concrete precast prestressed comprising a total 405 structures. Environmental impacts costs quantified via assessment cost analysis boundaries systems from extraction materials end ("from cradle grave"). In general, results indicated that performance significantly linked material selection configuration. addition, study enabled identification products processes with greatest impact order subsidize design more sustainable structures government policies.