Betonermüdung – Sicherheiten und Entwicklungspotenziale aktueller Nachweiskonzepte: 22. Dresdner Baustatik-Seminar – „Realität – Modellierung – Tragwerksplanung”

Concrete fatigue – safety and development potential of current design concepts. The safety level for the fatigue design of concrete under compression is currently unknown. This is the result of safety factors taken from the static design and other safety elements, which are in some cases not scientifically justified. In this paper, the safety aspects of current fatigue design concepts according to DIN EN 1992-1-1(/NA), DIN EN 1992-2(/NA) and fib Model Code 2010 are discussed and potentials for further developments are shown. In addition, results of existing fatigue tests are evaluated stochastically and compared with S-N curves according to fib Model Code 2010. The comparative investigations indicate a higher safety level of the fatigue resistance compared to the static design.