Abstract
AbstractFatigue design according to CEB‐FIP Model Code 90 is limited to concrete grades up to C80. In addition, the design rules include a strength‐dependent reduction in the fatigue reference strength, which leads to uneconomical design of high‐strength concrete. Considering comprehensive knowledge now available concerning the fatigue behaviour of normal‐strength and high‐strength concretes, the amount of this reduction can no longer be justified. A new design model for compressive fatigue loading and its derivation is presented in this article. A comparison between the new design model and the current standard ones reveals that the new design model ensures safe and economical design of normal‐strength, high‐strength and ultra‐high‐strength concrete. This new design model is included in the new fib Model Code 2010.
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