鋼構造論文集
Online ISSN : 1884-0329
Print ISSN : 1880-9928
ISSN-L : 1880-9928
円形鋼管トラスウェブ材の座屈長さに関する考察
森田 健一小川 厚治
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2002 年 9 巻 34 号 p. 57-65

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This paper proposes a method to approximate the out-of-plane effective bucklimg length for web members of circular tubular trusses with unstiffened branch joints. Using a nonlinear buckling analysis, the effective length is determined for a number of tubular trusses with various dimensions. Based on the numerical results, the effective length is represented by a simple formula. Comparisons with the numerical results proves the very high accuracy of the proposed formula for buckling loads.

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