鋼構造論文集
Online ISSN : 1884-0329
Print ISSN : 1880-9928
ISSN-L : 1880-9928
鋼製橋脚基部を対象とした低サイクル疲労強度曲線の提案
判治 剛舘石 和雄
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ジャーナル フリー

2009 年 16 巻 64 号 p. 64_21-64_30

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Steel bridge piers are often used for elevated highway bridges. The Hanshin-Awaji earthquake in 1995 revealed two types of failure mode in the pier, which are local buckling and low cycle fatigue. However, researches on low cycle fatigue of civil structures are limited, and design methods have not been established yet.
In this study, low cycle fatigue strength curves for base joints of the steel pier based on nominal strain, which can be calculated by finite element analysis with a beam element, were proposed. Fatigue tests with steel pier specimens demonstrated that the proposed fatigue strength curves could provide fatigue life estimation with enough accuracy.
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© 2009 社団法人 日本鋼構造協会
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