抄録
This paper describes a statistical approach to the assessment of fatigue strength of long and large parallel wire cables for cable stayed bridges. A statistical analysis of two sets of fatigue test data for single wires lead to an establishment of a mathematical presentation of probabilistic Woehler curves for element wires (sample pieces). Assuming that a cable is made up of a randam group of the sample pieces, the 5% fractile fatigue strength of a 500 meter long parallel wire cable with 421 wires of 7mm diameter has been estimated to be 23kg/mm2 under an upper stress of 45% of GUTS.
