摘要:随着中国改革开放，经济飞速发展，我国桥梁分别在桥梁建造技术、桥梁结构、高性能材料、信息化技术及标准规范等各方面取得了巨大成就，这也标志着我国桥梁建设正向着大跨径方向发展。连续体系桥具有跨中弯矩小、抗震和抗扭性能好等优点，Revit作为BIM的代表软件为房屋建筑提供了很大的便利，但是在复杂桥梁上面却显露出了很多弊端。而Dynamo具有强大的处理数据能力和空间异型构件的功能。本文基于Revit API技术，通过Visual Studio 2019平台，运用C# 语言进行二次开发，通过界面开发分别从BIM模型中获取几何构造与物理信息，同时基于Revit模型进行网格划分，将BIM模型转换为有限元分析模型，大大的降低了有限元分析前处理的操作门槛，最后用连续刚构桥梁的工程实例验证了参数化建模以及模型转换接口的适用性和准确性。

Abstract: With the rapid economic development after China's reform and opening up, China has made great achievements in bridge construction, for instance, bridge construction technology, bridge structure, high-performance materials, information technology, standards and specifications, etc., which also indicates that bridge construction is moving forward in China. The continuous system bridge has the advantages of small mid-span bending moment and good seismic and torsional performance. Based on the Revit API technology, this paper applies the Visual Studio 2019 platform for secondary development through using the C# language. The geometric structure and physical information are obtained from the BIM model through interface development, and meshing is performed based on the Revit model to convert the BIM model into a finite element analysis model, by which the operation threshold of the pre-processing of finite element analysis is greatly reduced. Finally, the applicability and accuracy of parametric modeling and model conversion interface are verified by the engineering example of continuous rigid-frame bridge.