EIC-based fatigue life prediction for aging reinforced concrete beams-Reference-Cited by-同舟云学术

EIC-based fatigue life prediction for aging reinforced concrete beams

Published:2015 Issue: Volume: Page:
ISSN:2221-3783
Container-title:IABSE Reports
language:
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Author:

Ma Yafei¹,Wang Lei¹,Zhang Jianren¹,Liu Yongming²

Affiliation:

1. Hunan Province Engineering Laboratory of Bridge Structure, Changsha University of Science & Technology, Changsha, China

2. School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, USA

Abstract

<p>The relationship between corrosion pit depth and corrosion loss is investigated based on the experimental results from artificially corrosion test. A calibration process is used to obtain an empirical stress concentration factor model under different corrosion levels based on experimental fatigue tests. It is found that the stress concentration factor increases initially and then decreases with increasing corrosion loss. Following that, the developed model is used to obtain the stress intensity factor. The fatigue life can be predicted by using integration of the fatigue crack growth rate curve from the equivalent initial crack to a critical length. Numerical fatigue life prediction results for fatigue tests of various corroded beams are used to demonstrate the accuracy of the propose method, and reasonable agreement is observed.</p>

Publisher

International Association for Bridge and Structural Engineering (IABSE)

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