【摘要】 针对拱坝三维建模过程繁琐、效率低的问题，基于Revit二次开发拱坝参数化建模方法的研究，结合拱坝结构特点与拱圈设计方式选取拱坝体形参数，采用三次样条插值函数拟合拱坝体形参数与高程之间的关系，通过插值计算得到任意高程水平拱圈的体形参数；用Revit API与C#编程语言，设计了拱坝参数化建模插件，实现了拱坝三维模型的自动创建和拱坝体形参数插值计算结果的自动输出。实践结果验证了插件的可行性、高效性，研究方法可供其他水工异形构件的参数化建模参考。更多还原

【Abstract】 Three dimensional(3 D) modeling of arch dams is usually tedious and inefficient. Thus, a parametric modeling method of arch dams based on secondary development of Revit software is proposed. The shape parameters of arch dams are selected according to the structural characteristics of the dam and the design method of the arch rings. The cubic spline interpolation function is used to fit the relationship between the shape parameters and the elevation. The shape parameters of the horizontal arch rings at any elevation can be obtained through interpolation calculation. Then, an arch dam parametric modeling plug-in is designed with Revit API and C# programming language, which realizes the automatic creation of 3 D arch dam models and the automatic output of the shape parameter interpolation calculation results. Practical application verifies the feasibility and efficiency of the designed plug-in. It could be useful reference for the parametric modeling of other special-shaped hydraulic structure components.更多还原