Material and cost-efficient optimized steel designs for long fatigue life - LONGLIFE

Research Project, 2022 – 2025

Purpose and goal
The project will enable new, more durable and resource-efficient steel constructions for our infrastructure. This is done by completing work on optimized beam systems with corrugated webs for fatigue-loaded steel structures, enabling these and other structures to be designed and manufactured with stainless or weather-resistant materials with low maintenance costs, long service life and maximized material utilization. The beam systems shall be finally optimized and verified for fatigue and design guides developed.

Expected results and effects
Beams with corrugated webs have major advantages over traditional flat webs. The project will verify the new corrugated beam systems for fatigue applications and increase the rate of implementation of advanced stainless and weather resistant steels and reduce the environmental impact from our infrastructure. The developed guidelines for how to design and manufacture these beams together with the new annex to Eurocode will enable fast design and implementation of these new structures with long life.