摘要
本文像据粘弹性材料强度理论,提出了一种确定沥青面层低温缩裂率的能量判据,并提出了实现这一能量判据的沥青面层一维温度应力场的有限元计算方法。经试验路资料验证,这一判据和计算方法具有较好的实用性。应用这一判据不仅可以分析面层材料对于开裂率的影响,也可以用来分析结构因素的影响。
In this paper, an energy criterion is suggested for determining the low temperature cracking frequency. And, in order to realize the criterion, a finite element method is developed for 1-demention thermal stress field in bituminous pavement. It can be shown by the verification of test road data that the criterion and method are very practical, not only the effct of surface course material but also that of structural factors on cracking frequency can be analyzed with this criterion.
出处
《中国公路学报》
EI
CAS
CSCD
北大核心
1990年第3期11-17,共7页
China Journal of Highway and Transport
基金
国家自然科学基金
关键词
沥青路面
低温缩裂
开裂率
Low-temperature shrinkage cracking Energy criterion Structural factor Cracking frequency
