Dutch design method - ICPA
Dutch design method - ICPA
Dutch design method - ICPA
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<strong>Dutch</strong> <strong>design</strong> <strong>method</strong> – Thickness jointedplain/continuously reinforced pavementThickness determined on basis of fatigue damage analysis12.903 (0.995 − σmax/ fbrm)ilog Ni= with 0.5 ≤σmax/ fbrm≤ 0.8331.000 − 0.7525 σ / fbrmminiNi = number of repetitions of wheel load Pi i.e. the traffic loadstress σPi until failure combined with a temperaturegradient stress σTiσmini = minimum flexural tensile stress (= σTi)σmaxi = maximum flexural tensile stress (= σPi + σTi)fbrm = mean flexural tensile strength (N/mm²)iDesign criterion: Palmgren-Miner fatigue damage rule: 126 October 2009 40∑inN =i
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