自电子计算机问世以来,国外公路设计机构从五十年代就开始研究应用电子计算机进行道路和桥梁的设计,当时,仅用来解决路线的中线座标、横断面和土方数量、桥梁结构的内力分析等问题。现在,欧美各国已把电子计算机大量应 Since the advent of electronic computers, foreign road design agencies began to study the design of roads and bridges using electronic computers from the 1950s. At that time, only used to solve the route centerline coordinates, cross-section and earthwork, internal force analysis of the bridge structure And other issues. Now, Europe and the United States have a large number of electronic computers should be