随着交通事业的蓬勃发展,修建山区公路已经成为目前高速公路建设的一个重点,在山区高速公路建设过程中需要跨越大量的深谷、大型冲沟、U形谷地,超高墩大跨长联连续刚构桥梁得以广泛应用。本文将通过对目前在建的世界最大墩高的连续刚构桥——三水河特大桥结构分析过程以及计算过程中的关键问题介绍,分析总结该类桥型计算分析过程中的关键问题,希望能对同类型桥梁的结构分析提供借鉴。 With the vigorous development of transportation, the construction of mountain highway has become a key point of highway construction at present. In the process of mountain highway construction, a large number of deep valleys, large gullys, U-shaped valleys, Rigid bridges are widely used. This paper will analyze the key structural problems in the process of structural analysis of the continuous rigid frame bridge-Sanshui River Bridge with the largest piers under construction in the world and the key problems in the process of calculation, summarize and summarize the key problems in the calculation and analysis of such bridges, Hoping to provide reference for the structural analysis of similar bridges.