掲載雑誌(和):
土木学会論文集 I
巻:
-巻
号:
350/I-2号
頁:
243-252頁
年:
1984年
月:
10月
著者(和):
吉川正昭,家村浩和
タイトル(和):
円筒地下タンクの非線形動的相互作用に関する実験的研究
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抄録(和):
地盤の非線形復元力特性である「軟化ばね特性」を表現できる模型材料を用い, 強震時, 軟化現象が大型地下タンクと内容液にどのような非線形動的相互作用を及ぼすかについて求めるため模型振動実験を実施した. 埋立地盤とタンク底版下の支持条件のよい2層地盤との2種類の地盤にタンクを埋設し, 相互作用系の応答特性を求めて考察した結果, タンクのひずみは地盤の軟化現象により, 地震力に比例して増加しないなどの有用な示唆が得られた.
キーワード(和):
-
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掲載雑誌(英):
JOURNAL OF STRUCTURAL MECHANICS AND EARTHQUAKE ENGINEERING
著者(英):
タイトル(英):
MODEL VIBRATION TEST FOR NONLINEAR INTERACTION OF GROUND-TANK-LIQUID SYSTEM
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抄録(英):
This paper describes model vibration tests to find effects of softening characteristics of ground on an underground tank with water 60% or without waterduring severe earthquakes. For this study, a new model material-a polyethylene and salad oil mixture was developed which has superior reproductiveness of softening characteristics of ground. Using this material and a shaking table, this dynamic interaction of ground-tank-liquid combined system was investigated. By comparing underground tank embedded in soft reclaimed lands and in rather rigid grounds of two layers, the dynamic behaviors of the tank were clarified. As the results, the underground tank during severe earthquakes are influenced greatly due to the softening of the surrounding ground, and the strains of the tank do not increase in direct proportion to the input intensity since the damping constant of the ground including viscocious hysteretic and radiation dampings increases.
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キーワード(英):
-
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記事区分:
投稿論文
区分
論文集