| 沥青混合料热粘弹性本构模型的实验研究 |
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| 引用本文： | 郑健龙,田小革,应荣华. 沥青混合料热粘弹性本构模型的实验研究[J]. 长沙理工大学学报(自然科学版), 2004, 1(1): 1-7 |
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| 作者姓名： | 郑健龙 田小革 应荣华 |
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| 作者单位： | 长沙理工大学,公路工程学院,湖南,长沙,410076;长沙理工大学,公路工程学院,湖南,长沙,410076;长沙理工大学,公路工程学院,湖南,长沙,410076 |
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| 基金项目： | 国家自然科学基金资助项目(50178012) |
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| 摘 要： | 针对不同的温度条件下沥青混合料的应力松弛特征开展了试验研究，并应用热流变简单材料的时温等效原理对实验结果进行了分析和参数拟合．在此基础上，提出了一种描述变温条件下沥青混合料温度应力松弛特性的热粘弹性本构模型，并通过对TSRST沥青混合料温度收缩应力试验的模拟，对该模型的合理性进行了验证．
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| 关 键 词： | 沥青混合料 热粘弹性 本构模型 应力松弛 |
| 文章编号： | 1672-9331(2004)01-0001-07 |
| 修稿时间： | 2004-03-28 |
A Laboratory Research on the Thermo-viscoelastic Constitutive Model of Bituminous Mixtures |
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| ZHENG Jian-long,TIAN Xiao-ge,YING Rong-hua. A Laboratory Research on the Thermo-viscoelastic Constitutive Model of Bituminous Mixtures[J]. Journal of Changsha University of Science and Technology(Natural Science), 2004, 1(1): 1-7 |
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| Authors: | ZHENG Jian-long TIAN Xiao-ge YING Rong-hua |
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| Abstract: | The stress relaxation behavior of bituminous mixtures is invesgated through laboratory test at different temperature. The experimental results are analyzed and the interrelated model parameters are fitted according to the time-temperature transform principle for thermo-rheologically simple materials. A thermo-visoelastic constitutive model of bituminous mixtures is presented to describe thermo-stress relaxing characteristics of asphalt pavements in the nonconstant temperature states.The feasibility of the model is verified through the temperature contract simulation in TSRST. |
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| Keywords: | bituminous mixtures thermo-viscoelasticity constitutive model stress relaxation |
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