论文部分内容阅读
根据实际工程中最不利的一种沥青路面裂缝修补结构型式,建立有限元模型进行模拟,对裂缝修补结构在不同缝宽、不同温度及不同荷载类型作用下的剪应力、拉应力及压应力进行了细致的对比分析,确定抗剪、抗压、抗拉3种强度标准的指标。同时考虑温缩张拉应力,将其与荷载作用下最大拉应力叠加,最终得出了沥青路面裂缝修补结构在使用过程中可能受到的最大应力值,为后面沥青路面裂缝修补材料性能指标的确定提供了理论依据。
According to the most unfavorable asphalt pavement crack repair structure type in practical engineering, the finite element model is established to simulate the shear stress, tensile stress and compressive stress of crack repair structure under different slit width, temperature and different load types A detailed comparative analysis to determine the shear, compression, tensile strength indicators of the three standards. At the same time, considering the temperature-shrinkage tensile stress and superposing it with the maximum tensile stress under load, the maximum stress that may be suffered during the use of the asphalt pavement crack repairing structure is finally obtained, which can be used to determine the performance index of the asphalt pavement crack repairing material Provided a theoretical basis.