繰返し荷重による軌道劣化の評価に関する一考察

概要

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In discussing the strenght of track structures in withstanding random repeated impact loads, we are primarily interested in the probability of structural safety, which is represented by the probability distribution of the maximum response in the design principle that the maximum response given either in terms of stress, deflection, or displacement should not exceed the prescribed allowable value. However, by virtue of the high correlation between track structural responses at different times, it is difficult to obtain the exact solution for this problem. In this study, two approximate methods have been developed to obtain the probability distribution of the maximum response to nonstationary random repeated impact motions, whose accuracy has been checked by means of the numerical solution. With the aid of these results, some new concepts of the probabilistic design of track structures have been discussed.
岐阜工業高等専門学校の論文
1976-03-25