変動繰返し圧縮荷重下におけるコンクリートの疲労寿命に関する研究

概要

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In order to investigate the fatigue life of concrete under varying repeated load, several stress fatigue tests were performed. In these tests, concrete cylinder specimens were subjected to the repeated load in which load levels were selected as to be between a constant minimum stress level and five different maximum stress level S_j (72〜82 percent of the ultimate static strength at each interval of 2.5%), The triangular-, normal-, uniform-, and exponential-distributions were used as the shape of the stress block for the varying repeated load. The order of the applied maximum stress level was selected at random. From the experimental results, it can be concluded as follows. (1). At each test condition, the sun of cycles ratio follows a logarithmic normal distribution. (2). Miner's rule may possibly be applied to predict the fatigue life under varying repeated load in which the magnitude of stress is changed quite very frequently.
社団法人日本材料学会の論文
1983-02-15