構造工学論文集 A
Online ISSN : 1881-820X
橋梁床版
BWIMを応用した実働荷重と走行位置が鋼床版の疲労損傷に与える影響検討
高田 佳彦木代 穣中島 隆薄井 王尚
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2009 年 55A 巻 p. 1456-1467

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Recent considerable increases in traffic intensity and wheel loads are causing fatigue cracks in orthotropic steel decks in Hanshin Expressway. From results of the periodic inspection, the fatigue cracks are detected by the 142 spans in the 1347 spans of the stock of the orthotropic steel decks as of April, 2007. Under traffic loading, in particular the effect of local wheel loads, longitudinal welds between deck plate and trough are subjected to local transverse bending moments and are susceptible to fatigue cracks. The stress in trough to deck plate welds is strongly influenced by actual-working load and run location .Then, in orthotropic steel decks in Kobe route of Hanshin Expressway, measurement of the load of actual-working traffic and generating stress was performed by Bridge-Weigh-In-Motion. The paper describes fatigue failure assessment based on this measurement results.

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© 2009 公益社団法人 土木学会
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