摘要
本文采用Winkler地基假设和剪切弹簧单元模型作为接缝传荷介质,应用有限单元方法分析了纵横缝的传荷能力以及混凝土板平面尺寸、车辆荷载形式和路面结构刚度对它的影响;建立了挠度比值与应力折减系数之间的关系。利用这个关系,可以对接缝的传荷能力进行评价,并应用于具有接缝的水泥混凝土路面的设计。
In this paper, Winkler foundation model and pure shear spring element model which transfers vertical loads along the joint are used to analyse the load transfer efficiency at the longitudinal and transversal joints of concrete pavements by the FEM method.The effects of slab size, loading type and pavement structural rigidity on load transfer efficiency are also ana lyzed. The relationship between the reduced coefficient of slab edge stress and deflection ratio which is defined as the deflection of unloaded slab divided by the deflection of loaded slab is established. Applying this relationship, we can evaluate the load transfer in jointed concrete pavements.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
1993年第1期57-65,共9页
Journal of Tongji University:Natural Science
