作　　者： ; ;

机构地区： 江苏省交通规划设计院股份有限公司

出　　处： 《岩土工程学报》 1996年第6期84-91,共8页

摘　　要： 本文采用空间有限元方法对连续配筋水泥混凝土路面荷载应力作了分析，建立了裂缝弹簧模型并提出考虑裂缝处传递水平力的局部迭代法。通过计算，确定了车辆荷载作用下的临界荷位、钢筋受力的最不利荷位以及最佳裂缝间距的下限值，分析了横向裂缝间距。 The object of this paper is to analyze the stresses in CRCP due to wheel loads .A numerical method of three dimensional finite element is introduced.In this numerical procedure,a crack spring model and a steel bar model are used to model the transverse cracks and longitudinal steel in CRCP.An iteration is presented for studying the transfer of horizontal forces at the cracks.Critical positions separately for concrete slab and reinforcing steel are determined from numerical calculation .The influence of some factors on the stresses ,such as crack spacing,elastic modulus of subgrade, and the percentage of longitudinal steel,is analyzed.The lower limit of crack spacing is also obtained.

关 键 词： 水泥混凝土 路面 连续配筋 荷载应力

领　　域： [交通运输工程]