Proposal for the fatigue strength of concrete under cycles of compression

•The Dutch National Annex has to be corrected for concrete under compressive fatigue.•New results for concrete compressive fatigue for high strength concrete are used.•A database from the literature is compiled.•Proposals for design and assessment are developed.

The Dutch National Annex to Eurocode 2 deviates from Eurocode 2 for the Wöhler curve for concrete in compression, but has a discontinuity in the S–N curve for 1 million load cycles. Therefore, a new expression for concrete subjected to repeated loading is sought, which should be valid, yet not overly conservative, for high strength concrete. A database of experiments on high strength concrete tested in compressive fatigue is developed, and used to derive new expressions. Two new formulas are proposed: (1) for the assessment of the fatigue strength of existing structures, and (2) a simplified method for design.