摘要
使用有限元软件建立文克勒地基上双层板模型,分析了水泥混凝土面层和基层之间竖向受拉刚度对温度翘曲应力的影响。进而对比了层间竖向连续和受拉脱离2种接触条件下,温度梯度、线膨胀系数、面层厚度、面层模量、基层厚度、基层模量、地基模量和面层板密度对温度翘曲应力的影响。
By establishing a finite element model of the Winkler foundation double-layer plate,the effect of vertical tensile stiffness between cement concrete surface layer and base layer on temperature warping stress is analyzed.Then under the two conditions of vertical continuity and pull separation,the effects of some factors on temperature stress is compared.Those factors include temperature gradient,expansion coefficient,surface thickness,surface modulus,base thickness,base modulus,ground modulus and surface density.
作者
杨杰
朱唐亮
YANG Jie;ZHU Tangliang(Key Lab of Road and Traffic Engineering of Ministry of Education,Tongji University,Shanghai 201804,China)
出处
《交通科技》
2019年第2期44-47,共4页
Transportation Science & Technology
关键词
水泥混凝土路面
温度翘曲应力
层间接触
有限元
cement concrete pavement
temperature warping stress
interlayer contact
finite element
