铁道科学与工程学报2017，Vol.14Issue(9)：1899-1906,8.
钢桥面双层沥青混合料铺装体系疲劳损伤分析
Fatigue damage analysis of double layer asphalt mixture paving system on steel bridge deck
摘要
Abstract
In this study, based on the damaged mechanics principle, the fatigue damage evolution law of a double layer asphalt mixture paving system on steel bridge deck was analyzed from the perspective of mechanical approximation. Also some prediction formulas of damaged field, stress-strain relationship and fatigue life of the paving system were proposed. Fatigue tests of compound beams were prepared at a paving layer construction site of Nanjing's fourth Yangtze river's bridge and used to validate the reliability of established models. Results indicated that predicting values from established models were closed to those from experimental measurements with a deviation rang of 8%. This suggests that the proposed prediction formulas were reliable. This study concludes that the established models can be used to accurately predict the fatigue life of a double layer asphalt mixture paving system on steel bridges'decks.关键词
损伤分析/疲劳寿命/复合梁疲劳试验/双层沥青混合料铺装/钢桥面Key words
damage analysis/fatigue life/fatigue test on compound beam/double layer asphalt mixture paving system/steel bridge deck分类
交通工程引用本文复制引用
柳富勇,王宏畅,魏洋,李国芬..钢桥面双层沥青混合料铺装体系疲劳损伤分析[J].铁道科学与工程学报,2017,14(9):1899-1906,8.基金项目
国家自然科学基金资助项目(51608273) （51608273）
江苏省"青蓝工程"资助项目(QL2017) （QL2017）
江苏交通科技资助项目(2010Y34) （2010Y34）
中国交通运输部部省联合攻关资助项目(2010-353-332-100) （2010-353-332-100）
