【摘要】 针对水泥混凝土桥梁铺装层易发生横向裂缝病害问题,应用梁体结构的线弹性理论与叠加原理,经过分析推证得到了车辆荷载弯矩在水泥混凝土桥梁桥面铺装层及防水层内所产生的弯曲应力计算公式,并编制了相关的计算程序;对设与不设防水层的沥青混凝土铺装层结构进行了数值计算,分析了沥青混凝土铺装层和防水层的模量、厚度等参数变化对铺装层结构弯曲应力的影响,探讨了沥青混凝土和防水层铺装结构内荷载弯曲应力的变化规律。更多还原

【Abstract】 In accordance with the transverse crack issue of concrete bridge decks with asphalt pavement, the calculation formulas of load bending stress of concrete bridge decks with asphalt pavement and waterproofing layer are derived by using the theory of linear-elastic theory and superimposition principle. The corresponding program is worked out. The numerical calculations of bitulithic layer with waterproofing layer or without waterproofing layer are fulfilled. The impact laws of elastic coefficient and thickness change on load bending stress of concrete bridge decks with asphalt pavement and waterproofing layer are discussed.更多还原