Low-Cycle Bending Fatigue of Steel Bars under Random Excitation. Part II: Design Considerations
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Volume 131, Issue 6
Abstract
In this paper, the low-cycle bending-fatigue strength of square and rectangular steel bars under random loading histories is quantified through an experimental program. Based on the experimental data, and considering the fatigue failure mechanisms, a damage accumulation index formula is established. This formula serves as a foundation for further investigation on structural members with other geometrical shapes, with local buckling effects, and/or with welding residual stress effects, etc. After these effects are considered, design principles for low-cycle bending-fatigue strength of steel members can be developed for earthquake engineering applications.
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Acknowledgment
The writers gratefully acknowledge the financial support of the Federal Highway Administration (Contract No. UNSPECIFIEDDIFH61-98-6-00094).
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 131 • Issue 6 • June 2005
Pages: 919 - 923
Copyright
© 2005 ASCE.
History
Received: Dec 18, 2003
Accepted: Aug 16, 2004
Published online: Jun 1, 2005
Published in print: Jun 2005
Notes
Note. Associate Editor: Christopher J. Earls
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