大曲率曲线连续箱梁桥活载作用下的结构分析需使用影响面加载才能完成。将曲线连续箱梁作为板壳组合结构，用有限单元法求解影响面的方法工程上不实用。论文提出了一种基于杆系结构理论，构造曲线连续箱梁影响面的方法，解决了活载二维加载问题。 Large Curvature Curves The structural analysis of a continuous box girder bridge under live load needs to be done using the influence surface loading. The continuous box girder curve as a combination of plate and shell structure, finite element method to solve the impact surface engineering is not practical. In this paper, a method based on the theory of bar structure is proposed to construct the influence surface of curved continuous box girder, which solves the problem of two-dimensional live loading.