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对于结构优化问题,如钢框架结构的用钢量最小化,设计尺寸取决于构件横截面面积。构件横截面面积可从一些可行性表格中查得,如美国钢结构协会(AISC)提供的表格。构件的横截面尺寸bf,tf,d和tw(可为分散的或连续的)能独立确定。讨论关于设计尺寸变量的框架结构优化问题,提出一种获得理想构件分组法则。此法则考虑了制作、检查、装配和焊接的优势,而这些因素在传统预算里并没有被考虑。运用先前提出的适应性损失法,增强结构优化中的机械约束。
For structural optimization problems such as minimizing the amount of steel used in steel frame structures, the design dimensions depend on the cross-sectional area of the component. The cross-sectional area of components can be found in a number of feasibility tables, such as those provided by the American Society for Steel Structures (AISC). The cross-sectional dimensions bf, tf, d and tw of the component, which may be dispersed or continuous, can be independently determined. Discuss the frame structure optimization problem about the design dimension variable, and propose a method to get the ideal component grouping. This law takes into account the advantages of production, inspection, assembly and welding, and these factors are not considered in the traditional budget. Using the previously proposed adaptive loss approach, the mechanical constraints in structural optimization are enhanced.