Modern Principles of Sustainable Bridge Design

Abstract

This paper addresses modern principles of sustainable bridge design developed within the framework of the Sustainable Bridge Design concept. The analysis focuses on four key directions of the sustainable approach: environmental performance, reduction of carbon footprint, life-cycle management, and reuse of materials. Particular attention is paid to the integration of international standards (EN 206, Eurocode, AASHTO) and modern digital tools (BIM, LCA, digital twins) into bridge design, construction, and operation processes. Examples of life cycle assessment (LCA) and calculation of the eco-economic efficiency indicator (Kₑₓₒ) are presented. A methodology for selecting design solutions considering climatic, operational, and socio-economic factors is proposed. The study is based on doctoral research aimed at promoting sustainable development of transport infrastructure in Uzbekistan.