摘要:随着审美需求的提升，造型独特、线条优美的地标性异形桥梁应运而生，BIM建模技术面临更高的挑战。本文以厦门山海健康步道异形桥梁为背景，针对异形桥梁特性，基于Autodesk系列软件平台，结合Dynamo、Excel以及二次开发技术，建立了适用于异形桥梁快速建模方法。该方法实现了可视化、参数化、批量化及可重复的建模，可有效提升异形构件的建模效率、降低人工修改误差、压缩人力和时间成本，弥补传统建模方式不足。同时，以地标性园山桥项目为例，进行结构分析、净高分析、图纸校核、工程量校核及BIM+ 拓展等应用，为后续类似项目提供借鉴。

Abstract: With the improvement of aesthetic demands, special-shaped bridge with unique shape and beautiful lines came into being. BIM modeling technology faces more challenges., Aiming at the characteristics of special-shaped bridges, this article taking Xiamen Footpath special-shaped bridge as the background, a rapid modeling method for special-shaped bridges is established on the basis of Autodesk software platforms and combination of Dynamo, Excel and secondary development technology. This method realizes the visualization, parameterization, batching and repeatable modeling, which can effectively improve the modeling efficiency of special-shaped components, reduce the manual modification error, reduce the labor and time cost, and compensate the shortcomings of traditional modeling methods. Moreover, taking the landmark Yuanshan Bridge project as an example, the application of structural analysis, clear height analysis, drawing check, engineering quantity check and BIM + expansion, etc., are carried out, which can provide reference for the following similar projects.