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面内変動曲げを受ける薄肉I型断面曲がり桁の扇形腹板の動的安定性


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Title: 面内変動曲げを受ける薄肉I型断面曲がり桁の扇形腹板の動的安定性
Other Titles: DYNAMIC STABILITY OF THE WEB PLATE OF A VERTICALLY CURVED I-GIRDER SUBJECTED TO IN-PLANE DYNAMIC MOMENT
Authors: 夏秋, 義広 / 高橋, 和雄 / 手塚, 仁 / 小西, 保則
Authors (alternative): Natsuaki, Yoshihiro / Takahashi, Kazuo / Tezuka, Hitoshi / Konishi, Yasunori
Issue Date: Mar-1990
Publisher: 土木学会 / Japan Society of Civil Engineers
Citation: 構造工学論文集, 36A, pp.21-32; 1990
Abstract: Dynamic stability problem of an annular sector web plate subjected to in-plane dynamic moment at the radial edges is examined. The exact in-plane forces of the web plate considering flange plates are used. The equation of motion based upon the small deflection theory is transformed into an eigenvalue problem by us1ng the Galerkin method and the harmonic balance method. Then,the stabi11ty of the system can be directly determined from the sign of the real parts of the eigen-values. Next,the nonlinear response of unstable mot1on is analyzed by the large deflection theory based upon Berger's approximate equation. As numerical examples,the stress distribution of in-plane forces, buckling and vibration properties,dynamic unstable regions,and amplitudes of unstable motions are obtained under various geometrical parameters.
URI: http://hdl.handle.net/10069/30035
Rights: © 社団法人土木学会
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/30035

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