Revolutionizing steel structures: bridging research and sustainable design for future societal impact

This paper delves into the transformative journey from advanced analysis in steel structures to establishing a design paradigm for the construction sector –responsible for 50% of raw material extraction, 40% of all energy consumption and 36% of greenhouse gas emissions–, aligned with the European Green Deal requirements. In this context, the utilization of novel design and assessment methods, empowered by the use of digital technologies, and the establishment of a comprehensive framework for the reuse of reclaimed steelwork represent the two main paths towards a reliable and environmentally responsible steel structural design. The paper explores and underscores the main challenges that the research community needs to address for improving the sustainability and circularity of the steel construction sector, and presents two specific research projects that will contribute to address such shortcomings: the implementation of a fully documented demonstrator to showcase the reuse process for decarbonization, and the development of a holistic Decisions Support System that integrates system-based advanced design methods, Structural Health Monitoring and Life Cycle Assessment. Ultimately, this paper aims to provide insights into multifaceted aspects of smart, sustainable steel structures, advocating for system-based approaches to reshape the future of structural engineering and to ensure a resilient and environmentally conscious built environment.