組み合わせ荷重を受ける構造物の限界状態設計法 : 残存構造要素の耐力の統計量を用いた拡張2次モーメント法

概要

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The analysis of structural reliability under load combinations has been studies for evaluating the probability distribution of the maximum value of the combined loads over a given time period, and up to now analytical methods for the evaluation of the load and resistance factors of structures has been derived. This paper presents a new analytical method in the evaluation of the safety index and the load and resistance factors of structures with resistance deterioration due to load history or aging under load combinations consisting of dead, live, snow, wind and earthquake loads, applying the advanced first order and second moment method with the statistics of the resistance of structural element which has survived up to time τ, instead of evaluating the exceedance probability of the maximum value of combined loads. The expected value of the load and resistance factors is suggested, and the effect of strength deterioration on it is described with numerical examples.
社団法人日本建築学会の論文
2000-11-30