计算机智能优化技术在大型复杂钢结构项目中的应用  

Application of computer intelligence optimization technology in large and complex steel structure projects

作　　者：李逊 邓林忠 李俊超 欧启捷 劳恒辉 王森 LI Xun;DENG Linzhong;LI Junchao;OU Qijie;LAO Henghui;WANG Sen(Guangdong Zhongtu Technology Co.,Ltd.,Foshan 528200,China)

机构地区：[1]广东众图科技有限公司,佛山528200

出　　处：《建筑结构》2023年第15期120-124,共5页Building Structure

摘　　要：实际工程的构件数量和约束条件限制了计算机优化技术的应用。特别是在大型复杂钢结构设计中,除了强度、刚度和稳定问题外,还要考虑大规模优化计算问题,传统的优化方程有大量的非线性约束,对于有10000个杆件的结构,该约束条件可能达到20万条以上,这些约束条件对优化计算的收敛影响很大,进而限制了优化技术在实际工程的应用。笔者团队通过构建的新型结构优化模型和发明的智能求解方法建立隐形函数,简化了非线性约束条件的建立过程;并发明建筑特殊约束条件的处理技术,使优化算法具有优化钢结构的能力;研究开发了“AI结构师”V1.0软件系统,成功解决了大型钢结构设计的优化问题。通过多个项目的实际应用,证明该系统能适应大规模钢结构项目的各种约束要求,而且优化结果能满足设计要求,优化率皆达到10%以上,具有很高的经济价值和使用价值。The number of structure members and constraint condition in real engineering project restrict the application of computational optimization algorithms.Especially in the design of large and complex steel structures,large scale optimization computing problems should also be considered in addition to consider the issues related to strength,stiffness and stability.To setup traditional optimization model,there are a large number of nonlinear constraints.For a structure with 10000 members as an example,the constraint condition may be reach 200000 or more.These constraint condition have a great impacts on the convergence of optimization computation,and block applications in real engineering.The author’s team established an invisible function through the new structural optimization model and the invented intelligent solution method to simplify the process of nonlinear constraint condition establishment.The processing technology of the special constraint condition of the building was invented,and the optimization algorithm has the ability to optimize the steel structure.An"AI Structural Engineer"V1.0 software system was researched and developmented to solve the optimization problem successfully for the design of large-scale steel structure.Many on-site examples proved that this system can meet various constraint requirements in large scale steel structure projects,and the optimization results can meet design requriement.The optimization rate can reach 10%or more.This system can produce high economic value and use value.

关 键 词：钢结构 结构优化 智能优化 约束条件 

分 类 号：TU318.1[建筑科学—结构工程]