论文部分内容阅读
建立了Winkler地基上的双层结构模型,分析了传力杆几何尺寸、空间位置、与混凝土结合状况及布设方式对接缝传荷能力、传力杆内力和面层底部最大应力的影响。结果表明,增加传力杆直径和长度不能有效提高传荷能力;弯沉传荷系数随传力杆竖直偏角的增大线性减小,随传力杆支撑模量的增大呈指数增大,随松动量的增大呈二次曲线下降;传力杆数量相同时,布设在轮迹带上与沿横缝均匀布设的传荷能力相近,达到一定数量后传荷能力不再因布设位置、层数明显变化。
The double-layer structure model of Winkler foundation is established, and the influence of dowel bar geometry, spatial location, concrete condition and layout method on joint load transfer capacity, internal force of dowel bar and maximum stress at the bottom of pavement are analyzed. The results show that increasing the diameter and length of the dowel bar can not effectively improve the capacity of the transfer. The deflection and load transfer coefficient decreases linearly with the increase of the vertical off angle of the dowel bar and increases exponentially with the increase of the supporting modulus of the dowel bar When the number of dowel bar is the same, the capacity of transmission load arranged on the wheel track belt and the horizontal joint along the transverse joint is similar, and the capacity of transmission of load is no longer affected by the distribution Location, the number of layers changed significantly.