东南大学学报（英文版）2017，Vol.33Issue(4)：478-483,6.DOI:10.3969/j.issn.1003-7985.2017.04.014
重载和温度耦合作用下钢桥面环氧沥青铺装结构疲劳损伤分析
Fatigue damage analysis of epoxy asphalt pavement for steel bridges considering coupled effects of heavy load and temperature variations
摘要
Abstract
To investigate the fatigue damage of epoxy asphalt pavement (EAP) under a heavy load and and temperature load,the load-figure of the heavy load on the steel bridge deck pavement (SBDP) was simulated first,and the temperature distribution of SBDP during the temperature-fall period in winter was also calculated.Secondly,the moving heavy load coupled with the most unfavorable temperature load was applied to the SBDP,and the tensile stress on the top of SBDP was calculated.Finally,the fatigue damage of EAP was evaluated considering the extreme situation of heavily overloaded and severe environments.The results show that both the heavy load and the temperature load during the temperature-fall period can increase the tensile stress on the top of SBDP significantly.In the extreme situation of heavily overloaded and severe environments,a fatigue crack is easily generated,and thus the SBDP should avoid the coupling effects of the heavy load and the temperature load in winter.关键词
环氧沥青混凝土/钢桥面铺装/疲劳裂缝/重载/温度荷载Key words
epoxy asphalt concrete/steel bridge deck pavement/fatigue crack/heavy load/temperature load分类
交通工程引用本文复制引用
刘阳,钱振东,张勐..重载和温度耦合作用下钢桥面环氧沥青铺装结构疲劳损伤分析[J].东南大学学报（英文版）,2017,33(4):478-483,6.基金项目
The National Natural Science Foundation of China (Nos.51378122,51678146),the Scientific Research Foundation of Graduate School of Southeast University (No.YBJJ1680). （Nos.51378122,51678146）
