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Online ISSN : 1884-0329
Print ISSN : 1880-9928
ISSN-L : 1880-9928
A PROPOSAL ON LOW CYCLE FATIGUE STRENGTH CURVE FOR BASE JOINTS OF STEEL BRIDGE PIER
Takeshi HANJIKazuo TATEISHI
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JOURNALS FREE ACCESS

2009 Volume 16 Issue 64 Pages 64_21-64_30

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Abstract

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 Japanese Society of Steel Construction
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