机构地区: 上海长江隧桥建设发展有限公司
出 处: 《上海公路》 2009年第4期60-64,共5页
摘 要: 依据黏弹性理论,对沥青混合料的疲劳预测模型进行推导,从动态加载的角度建立劈裂疲劳预测模型并通过蠕变试验和重复加载试验确定模型参数(蠕变柔量、m值、松驰模量以及拟应变),并以实测劈裂疲劳试验对模型进行验证。 This paper researches on asphalt mixtures fatigue life prediction models,which are produced under dynamic loading method based on viscoelastic theory.The model parameters,including creep compliance,m-value,relaxation modulus and pseudo stain are obtained by the indirect tensile creep tests and repeated loading tests.The models are proved by actual indirect tensile fatigue tests.