東北地方に於ける年最大積雪深の統計的性質

概要

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Since snow load is one of the most dominate design loads on structures especially in heavy snow areas such as Tohoku district, it is very important how to calculate the return period value from the random data. In the present paper, several types of calculation methods are critically discussed and statistical properties of the annual maximum snow cover depth on the ground are analyzed on eighty points in Tohoku district. While Thomas plot technique with Gumbel's least square method may offer comparatively better return period values, some other techniques such as Hazen plot are also available for several points. Finally statistical properties of the annual maximum snow cover depth are classified into three groups, which may be dependent on the local climate condition. A new idea is proposed to calculate the values for large return periods.
一般社団法人日本建築学会の論文