| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
In the practical design process, uncertainty in the parameters should be appropriately taken into account. Earthquakes should be considered as uncertain phenomena. Robust design method is known as an effective design method under such uncertainties, where a design is found to be insensitive to environment and other uncontrollable factors. Worst-case design of structures is a popular approach as a robust design method, where the objective function and/or the constraints are assigned to the worst values of the structural responses. However, predicting the exact extremes from small samples is difficult in general. Hence, we have proposed use of the approximately worst value instead of the exact worst value. We can predict and control more accurately the behavior by the order statistics with RS. We could successfully apply the approach to seismic design problems linking with a prescribed accuracy. The result indicates a new aspect of the proposed robust design method.
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