Method for determining the fatigue capital of a cable

摘要

The invention relates to a method for determining the fatigue capital of a cable supporting a civil engineering structure, the method including: a measuring step (S1, S2) during which the normal tensile stress in the cable and the bending stress in the cable are measured in a synchronized manner so as to obtain the compound stress in the cable; a counting step (S3) during which a count of the number of stress cycles, depending on the amplitude of the stress, is carried out from the measured compound stresses; and a step (S4) of assessing the fatigue capital of the cable during which the fatigue capital of the cable is determined by comparing the count, carried out in the counting step, with a pre-set Wohler curve for the cable.

主权项

1. A method for determining a fatigue capital of a cable supporting a civil engineering structure, wherein the method comprises:
a measurement step during which a normal tensile force on the cable and a bending force on the cable are synchronously measured so as to obtain a compound force on the cable; a counting step during which, based on the measured compound forces, a count of a stress cycle number as a function of an amplitude of the force is realized; and a step of evaluating the fatigue capital of the cable, during which the fatigue capital of the cable is determined by comparing the count carried out during the counting step with a Wöhler-type curve previously determined for the cable.