山区桥梁结构设计关键问题研究

山区地质复杂，地形多变，桥梁作为山区高速公路的重要组成部分，设计方案是否合理，直接影响着整个工程的总造价及使用性能。因而结合实践经验，阐述山区桥梁结构设计中若干关键问题的处理方法，可为工程设计提供参考。

Key Issues of Structural Design of Bridge in Mountain Area

In the mountain area, the geologic conditions are quite complex, and the terrain is variable. The design proposal of bridge, which is the important component of the expressway, can directly determine the total cost and service performance of the whole project. Combining with the practice, the disposal methods on several key issues of structural design of bridge in the mountain area are represented, which can provide reference for engineering design.