【摘要】 跨线桥是高等级公路的重要组成部分。对跨线桥的美学设计、合理桥型进行了详细论述 ,并介绍了西安到三原一级公路跨线桥的设计特点。更多还原

【Abstract】 Crossing above bridge is one of the important parts in high class highway. Its esthetical design and its reasonable type are explained, and the features of crossing above bridges in Xi′an—Sanyuan first class highway are introduced.更多还原