耦合和非耦合效应下沥青路面受力对比分析研究
发布时间：2019-05-09 20:34
【摘要】：为了更加深入分析沥青路面在温度场和应力场耦合作用下的变化规律,本文采用修正的Burgers模型作为沥青混合料的本构模型,对双轮标准轴载作用下高速公路沥青路面的应力场和温度场进行了有限元分析,并与非耦合状态下沥青路面受力情况进行对比研究。结果表明:温度和应力耦合作用时,路面的主要设计指标路表竖向位移、底基层底面的水平应力、面层内的剪应力和竖向应力均大于非耦合作用,该研究可以为沥青路面的力学分析及路用性能研究提供有利依据。
[Abstract]:In order to analyze the variation law of asphalt pavement under the coupling action of temperature field and stress field, the modified Burgers model is adopted as the constitutive model of asphalt mixture. The stress field and temperature field of highway asphalt pavement under the action of double wheel standard axial load are analyzed by finite element method and compared with the stress condition of asphalt pavement under the condition of uncoupling. The results show that when temperature and stress are coupled, the vertical displacement of pavement surface, the horizontal stress of the subbase, the shear stress and the vertical stress of the surface layer are all greater than those of the non-coupling action. This study can provide a favorable basis for the mechanical analysis and pavement performance research of asphalt pavement.
【作者单位】： 辽宁工程技术大学土木与交通学院;
【基金】：辽宁省教育厅科研基金项目(L 2013144) 辽宁省百千万人才基金(2011921064)
【分类号】：U416.217
[Abstract]:In order to analyze the variation law of asphalt pavement under the coupling action of temperature field and stress field, the modified Burgers model is adopted as the constitutive model of asphalt mixture. The stress field and temperature field of highway asphalt pavement under the action of double wheel standard axial load are analyzed by finite element method and compared with the stress condition of asphalt pavement under the condition of uncoupling. The results show that when temperature and stress are coupled, the vertical displacement of pavement surface, the horizontal stress of the subbase, the shear stress and the vertical stress of the surface layer are all greater than those of the non-coupling action. This study can provide a favorable basis for the mechanical analysis and pavement performance research of asphalt pavement.
【作者单位】： 辽宁工程技术大学土木与交通学院;
【基金】：辽宁省教育厅科研基金项目(L 2013144) 辽宁省百千万人才基金(2011921064)
【分类号】：U416.217
【参考文献】
相关期刊论文 前6条
1 易富;梁冰;薛强;刘建华;;周期性气候条件下路面结构体温度场模拟研究[J];地下空间与工程学报;2007年S1期
2 秦凯;马芹永;吴金荣;;温度与腐蚀耦合作用下沥青混凝土性能的试验研究[J];硅酸盐通报;2013年05期
3 段孚;;改性沥青路面施工温度影响的研究[J];山东交通科技;2012年02期
4 蒋育红;李妍;尹硕;余修平;;温度影响下的橡胶沥青应力吸收层的应力分析[J];安徽冶金科技职业学院学报;2013年01期
5 艾长发;邱延峻;毛成;兰波;;考虑层间状态的沥青路面温度与荷载耦合行为分析[J];土木工程学报;2007年12期
6 付其林;陈拴发;彭，
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