部材強度のばらつきを考慮した柱梁耐力比と柱ヒンジ発生確率

概要

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It is desirable that structural yield hinges be formed in beams during an earthquake, therefore, the column-overdesign-factor(COF) has the most important role in designing earthquake-resistant frames. Although the uncertainties should be considered for setting rational values of the COF, few researches have been carried out to date. In this paper, the authors investigated the relationship between the COF and the yield probability of columns, based on the probability theory, considering the correlation between the strength of members, and confirmed that the probability of yielding in columns may lie under 1.0% in the general structural design using high strength concrete materials. And to give buildings more seismic safety, it is necessary to make higher the correlation of strength of members.
社団法人日本建築学会の論文
1998-07-30