摘要
为探索应力吸收夹层在沥青加铺层结构中的最佳位置,用有限元软件ANSYS分析夹层位置对夹层上下沥青加铺层结构应力影响的规律,计算不同情况下的加铺层结构应力强度因子。结果表明:当应力吸收夹层设置在基层和底面层之间时,无论是在偏荷载还是温度荷载作用下,加铺层结构应力和裂缝尖端的应力强度因子都较小,反射裂缝的防治效果较好。
In order to explore the optimal position of stress absorbing interlayer in asphalt overlay structure,and by using the finite element software ANSYS,the structural stress rules for the interlayer position to impact the asphalt overlay structure are analyzed,and the stress intensity factors of overlay structures in different situations are calculated.The results show that when the stress absorbing interlayer is put between the grass-roots level and the bottom layer,whether it is at partial load or temperature load,the stress intensity factors are smaller and the reflection cracks are controlled better.
出处
《水利与建筑工程学报》
2010年第5期17-19,共3页
Journal of Water Resources and Architectural Engineering
关键词
道路工程
沥青加铺层
有限元方法
应力强度因子
夹层
road engineering
asphalt overlay
finite element method
stress intensity factor
interlayer
