论文部分内容阅读
近年来随着我国交通事业的迅速发展,每年境内均会有大量的建筑垃圾产生,其中以废旧沥青混合料尤多,将其应用于制备公路路面对于保护生态资源及发展循环经济具有重大意义.在桥梁的设计和评估中,冲击系数(IM)是桥梁结构动力响应的一个重要标准,其大小是否合理直接反映桥梁承受荷载的能力.本文通过计算两种公路路面的冲击系数,即普通混凝土路面和利用废旧沥青混合料制备的路面,将计算的结果与我国规范值进行了比较,并讨论了两种路面的冲击系数随速度和粗糙度的变化规律.
In recent years, with the rapid development of transportation in our country, there will be a large amount of construction waste in China every year. Among them, waste asphalt mixture is more used, which is used to prepare highway pavement for the protection of ecological resources and the development of circular economy. In the bridge design and evaluation, the impact coefficient (IM) is an important criterion for the dynamic response of the bridge structure, and its size is reasonable to directly reflect the load capacity of the bridge.Through calculating the impact coefficient of two kinds of highway pavement, that is, ordinary concrete pavement And the pavement prepared by using the waste asphalt mixture are compared with the calculated values in our country and the variation rules of the impact coefficient of the two pavement with the velocity and the roughness are discussed.