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http://dx.doi.org/10.7781/kjoss.2017.29.3.193

Experimentally Evaluating Fatigue Behavior of Corroded Steels Exposed in Atmospheric Environments  

Mun, Jae Min (Dept. of Civil Engineering, Pusan National University)
Jeong, Young Soo (Seismic Simulation Test Center, Pusan National University)
Jeon, Je Hyeong (Dept. of Civil Engineering, Pusan National University)
Ahn, Jin Hee (Dept. of Civil Engineering, Gyeongnam National University fo Science and Technology)
Kim, In Tae (Dept. of Civil Engineering, Pusan National University)
Publication Information
Journal of Korean Society of Steel Construction / v.29, no.3, 2017 , pp. 193-204 More about this Journal
Abstract
Fatigue strength of temporary steels and painted structural steels corroded under outdoor atmospheric environments is not clear. In this study, fatigue tests were carried out on steel plates which were cut off from 7-year-old temporary structural member under subway construction environment and from 75-year-old Yeongdo bridge member under marine atmospheric environment. After removing corrosion production on the steel surface, 3-dimensional surface geometry of the corroded steel was measured at intervals of $1.0{\times}1.0mm$, and corrosion characteristics such as minimum, maximum and mean values of residual thicknesses were calculated. From the fatigue test and FEM analysis results, the relationship between corrosion characteristics and fatigue behavior was presented, and change in fatigue strength of the unpainted and painted steels corroded in outdoor environments was also presented.
Keywords
Corrosion; Temporary steel; Yeongdo bridge; Atmospheric environment; Fatigue design category; Fatigue strength;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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