The traditional structural design process of rural buildings requires a lot of trial calculations and iterations of modelling work. However, rural buildings are subject to construction costs and cannot be professionally designed and checked by designers like urban buildings. Their safety and economy are difficult to meet the requirements. Therefore, an intelligent design concept of rural light steel frame structure was proposed, including intelligent modeling and intelligent optimization. Based on the automatic layer recognition method and optical character recognition technology, the BIM intelligent modeling method of rural light steel frame structure corresponding to the standard atlas of rural buildings was proposed, including layer recognition, axis text data extraction, primary selection and automatic arrangement of components. The intelligent modeling results basically met the requirements of practical application. Based on the proposed two-stage genetic algorithm, an intelligent optimization method of rural light steel frame structure was given. The optimization speed was fast and the optimization effect was good. The proposed intelligent design method was verified by practical case. The results showed that the proposed intelligent design concept of rural light steel frame structure was feasible. Compared with the traditional manual design method, the design period could be shortened by more than 80%, and the structural design indexes were comparable.

传统乡村建筑的结构设计过程需要大量的试算和建模工作的迭代。但乡村建筑受建设成本限制，无法像城市建筑一样由设计师进行专业设计和校核。其安全性和经济性难以满足要求。因此，提出了农村轻钢框架结构的智能设计理念，包括智能建模和智能优化。基于自动图层识别方法和光学字符识别技术，提出了对应农村建筑标准图集的农村轻钢框架结构BIM智能建模方法，包括图层识别、轴线文本数据提取、初选和自动排布等。成分。智能建模结果基本满足实际应用的要求。基于所提出的两阶段遗传算法，给出了农村轻钢框架结构智能优化方法。优化速度快，优化效果好。通过实际案例验证了所提出的智能设计方法。结果表明，所提出的农村轻钢框架结构智能化设计理念是可行的。与传统手工设计方法相比，设计周期可缩短80%以上，且结构设计指标具有可比性。优化速度快，优化效果好。通过实际案例验证了所提出的智能设计方法。结果表明，所提出的农村轻钢框架结构智能化设计理念是可行的。与传统手工设计方法相比，设计周期可缩短80%以上，且结构设计指标具有可比性。优化速度快，优化效果好。通过实际案例验证了所提出的智能设计方法。结果表明，所提出的农村轻钢框架结构智能化设计理念是可行的。与传统手工设计方法相比，设计周期可缩短80%以上，且结构设计指标具有可比性。