摘要:宁波梅山春晓大桥是国内第一座双层纵移开启式全焊钢桥。本文介绍了通过自主开发专业BIM软件进行大桥三维正向设计的过程，通过平台统一管理多专业的设计数据信息，并集成多个应用软件对BIM设计成果进行了各项优化，其中无人机地形勘测、虚拟现实、数字化扫描预拼装等新技术的成功运用为类似工程的BIM拓展打下了良好的基础。

Abstract: Ningbo Meishan Chunxiao Bridge is the first all welded steel bridge with vertical shift type of double layer. This article introduces the process of making three-dimensional forward design of the bridge by independently developed BIM software, shares multiple specialty data information through unified management of platform. It also combines several applications to optimize BIM technology. Among them, the successful use of new technology such as unmanned aerial vehicle terrain survey, virtual reality, test assembling of digital scan also laid a good foundation for the BIM development of the similar projects.