Influence of temperature of pavements on fatigue life of orthotropic steel bridge deck
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U443.3

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    Abstract:

    Many scholars have studied the fatigue performance of orthotropic steel bridge decks and got fruitful achievements, but so far, few scholars have discussed the influence of pavements’ temperature on fatigue life of steel bridge deck. In this paper, actual stresses of the steel bridge deck were measured through fatigue test with full-scale model in different temperature conditions. The results showed that stiffness of the asphalt mixture reduced quickly with the increasing of temperature, and resulting in rapid increasing of stresses of orthotropic steel bridge deck under the pavement. The fatigue damage of the steel bridge deck at high temperature(about 55℃) condition is approximately 21 times at room temperature(about 10℃) under the same load conditions.

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Wu Chong, Liu haiyan, ZHANG zhihong, Sun Yiming. Influence of temperature of pavements on fatigue life of orthotropic steel bridge deck[J].同济大学学报(自然科学版),2013,41(8):1213~1218

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History
  • Received:June 06,2012
  • Revised:April 23,2013
  • Adopted:April 07,2013
  • Online: August 25,2013
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