鋼構造論文集
Online ISSN : 1884-0329
Print ISSN : 1880-9928
ISSN-L : 1880-9928
コンクリート充填鋼管柱の累加座屈荷重鋼管の応力-ひずみ関係が完全弾塑性聖の場合
津田 恵吾松井 千秋
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1996 年 3 巻 11 号 p. 59-64

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In a previous paper, authors calculated buckling strength of concrete filled steel tubular columns in two different ways. One is performed using the tangent modulus theory (Nsc), considering steel portion and concrete portion behave as a one body. The second one is the method of superposed strength in which a simple sum of separately computed buckling load of steel and concrete columns is regarded as a buckling strength (Ns+c). Ramberg-Osgood equation was used as the stress-strain relations of a steel tube in the paper. In this paper, elastic-perfectly-plastic stress-strain relations are used. Effect of the analytical parameters on the correspondence between the two strength is examined.

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