运用蚁群优化法对钢结构进行基于性能的抗震设计

运用蚁群优化法(ACO)对钢结构进行了基于性能的抗震设计。这个离散的数学运算法比其他算法更为有效并精确。采用了非线性分析以得到结构在各种地震性能水平下的结构响应,采用一个简单的计算机程序,对包含一阶弹性和二阶几何刚度的特性进行推覆分析。采用两个实例说明了ACO在轻钢结构中的应用,证明其可满足抗弯钢结构在多种地震性能水平下的要求,同时也与标准遗传算法的结果进行对比,表明ACO更适合解决此类优化问题。

Performance-Based Seismic Design of Steel Frames Using Ant Colony Optimization

In this paper,a performance-based optimal seismic design of frame structures is presented using the ant colony optimization (ACO) method.This discrete metaheuristic algorithm leads to a significant improvement in consistency and computational efficiency compared to other evolutionary methods.A nonlinear analysis is utilized to arrive at the structural response at various seismic performance levels,employing a simple computer-based method for push-over analysis which accounts for first-order elastic and seco...