目前复杂桥梁的设计日趋增多,特别是曲面结构发展较快,传统二维设计手段已经难以满足这种设计发展的需求。本项目借助CATIA强大的曲面功能对钢塔扭曲面进行了优化设计,同时通过曲面展开功能进行了三维曲面及二维展开平面的图纸表达尝试,成功地解决了扭曲钢塔的曲面设计难题,为CATIA在桥梁设计领域的推广积累了经验。 At present, the design of complex bridges is increasing day by day, especially the curved structure is developing rapidly. The traditional two-dimensional design methods have been difficult to meet the needs of such design and development. In this project, the curved surface of steel tower was optimized by CATIA’s powerful surface function. At the same time, attempts were made to express the three-dimensional surface and two-dimensional expansion plane through the surface expansion function. The solution successfully solved the problem of curved surface design for twisted steel tower. CATIA has gained experience in the field of bridge design.