连续配筋混凝土路面收缩应力特征研究

Study on Shrinkage Stress of Continuously Reinforced Concrete Pavement

为研究连续配筋混凝土路面(CRCP)收缩应力特征,本文采用解析解和有限元数值解计算出两端钢筋位移固定条件下的板内收缩应力分布,采用有限元计算出10米长CRCP允许端部钢筋位移条件下的各位置板块的板内收缩应力分布。结果表明,对于两端钢筋位移固定条件下的CRCP混凝土,应力在板中最大,而钢筋应力和混凝土位移在裂缝处最大。

In order to study the characteristics of shrinkage stress of continuously reinforced concrete pavement （CRCP）, the shrinkage stress distribution of the inner plate in fixed condition of reinforcement displacement at both ends was calculated with analytical and finite element numerical solutions. The stress distribution under the condition of the end reinforcing bar displacement was calculated by using the finite element method, and the 10-meter length CRCP is allowable. The results show that, for CRCP concrete which is under the condition of the end reinforcing bar displacement, the stress is the largest in the plate, while the reinforcement stress and the displacement of concrete are the largest in the cracks.