非对称连续刚构在山区地方公路上的应用——以贵州思南岩头河大桥为例

Application of Asymmetric Continuous Rigid-Frame Structure on Highway in Mountainous Areas: Taking Sinan Yantou River Bridge in Guizhou Province for Example

贵州思南岩头河大桥为非对称连续刚构,跨径布置为53m+128m+92m。该桥具有分跨不对称,墩高不对称,结构受力复杂,可参考的工程实例少,并能与桥址区峡谷环境相协调等特点。以该桥的设计为例对非对称连续刚构在山区地方公路中的应用做了概要介绍。

The span arrangement of Guizhou Sinan Yantou River Bridge is 53m＋128m＋92m, which is of asymmetric continuous rigid frame. The bridge has the characteristic of asymmetry span, asymmetry pier, complexity structural stress, little practical engineering for reference, and to coordinate with the environment of bridge site canyon, etc. The paper briefly introduces the application of asymmetric continuous rigid frame on highway in mountainous areas based on the bridge design.