温度应力耦合作用下沥青路面应力与变形分析  

Action of Stress and Deformation Analysis of Asphalt Pavement under Temperature-stress Coupling

作　　者：易富[1] 朱凤薇 杨宇婷[1] 

机构地区：[1]辽宁工程技术大学土木与交通学院,阜新123000

出　　处：《硅酸盐通报》2016年第1期316-321,共6页Bulletin of the Chinese Ceramic Society

基　　金：辽宁省教育厅科研基金项目(L2013144);百千万人才基金(2011921064)

摘　　要：通过对沥青路面内部温度场和应力场耦合机理的分析,建立了热应力平衡方程,并且研究了温度对材料力学性能的影响。应用ADINA模拟软件对温度应力耦合作用下的沥青路面的应力和变形变化规律进行有限元模拟。结果表明:在耦合作用下无论是位移还是应力,在面层内均不再是单调均匀变化,而是随温度场的变化出现了波动;并且把位移和应力的变化规律进行分时段描述,得到了温度与应力耦合作用下沥青路面面层应力和变形波动变化的规律,同时位移和应力的变化也是进行防车辙,防疲劳损伤考察的要素,对高等级沥青路面防车辙防疲劳损伤具有一定的参考意义。Through to analysis of the asphalt surface internal coupling mechanism of the temperature field and stress field, the thermal stress equilibrium equation is established, and studies the influence of the temperature on material mechanics performance. Appling software ADINA to conduct the finite element simulation of the temperature stress under the coupling effect of the change law of stress and deformation of asphalt surface pavement. The results show that both displacement and stress under the coupling effect, in the surface layer is no longer drab uniform variation, but along with the change of temperature field of the volatility. And for the first time for period of time to describe the change rule of displacement and stress and the rule of stress and deformation of asphalt pavement surface fluctuation change under the coupled action of temperature and stress is obtained, and at the same time, the change of displacement and stress is to prevent furrow, anti fatigue damage of the elements, and to high-grade against rutting of asphalt pavement fatigue damage has certain reference significance.

关 键 词：沥青路面 温度应力耦合 应力 变形 

分 类 号：U416[交通运输工程—道路与铁道工程]