摘要
文章采用Levenberg-Marqurdt理论和全局优化理论,对沥青混合料40℃时200kPa荷载下和40℃时50kPa荷载下的静态蠕变试验进行分析,提出一种优化模型,克服了常用模型精度不高和模型描述的延展性不好的缺点。
By using Levenberg-Marqurdt and the global optimization theory,the static load creep tests to asphalt mixture under 40℃,200kPa and 40℃,50kPa are analyzed,and one kind of optimized asphalt mixture creep constitutive model is proposed,it overcomes the shortcoming that the commonly used model precision is not high and the model description extensibility is not good.
基金
国家自然科学基金资助项目(项目编号:50778027)。
关键词
沥青混合料
静态蠕变
优化理论
优化模型
asphalt mixture
static load creep
optimization theory
optimized model
