摘要
在钢框架设计理论及结构优化理论的基础上,应用MATLAB编程对钢框架结构进行优化分析,得出结构优化后相关数据,证实了钢框架结构多目标优化设计方法的可行。两个优化目标分别为:反应结构抗震性能的总应变能最大化和反应结构造价的总体积最小化。通过改变加权系数来调整两者在优化中的重要性程度,将两个目标函数化成一个目标函数。
Based on the steel frame design theory and the structure optimization theory,optimized analysis on steel frames is carried out by using the MATLAB programming and it is testified that the multi-objective optimization design is feasible for the steel frames by the correlation data before and after optimization.The two objectives of this optimization design are maximum total structural strain energy which reflects the struct＇s anti-seismic performance and minimum total structural volume which reflects the cost of structure.The two objective functions can be changed into one by employing the weighting factors which reflect the two objectives＇importance in optimization.
出处
《低温建筑技术》
2010年第6期30-32,共3页
Low Temperature Architecture Technology
基金
国家"十一五"科技支撑项目(2008BAJ08B11-03)
陕西省自然科学基金项目(2006E214)
关键词
钢框架结构
多目标优化
应变能
抗震性能
steel frames
multi-objective optimization
strain energy
anti-seismic performance
