PERFORMANCE-BASED OPTIMIZATION OF STEEL MOMENT FRAMES BY A MODIFIED NEWTON METAHEURISTIC ALGORITHM
عنوان مقاله: PERFORMANCE-BASED OPTIMIZATION OF STEEL MOMENT FRAMES BY A MODIFIED NEWTON METAHEURISTIC ALGORITHM
شناسه ملی مقاله: JR_IJOCE-13-2_003
منتشر شده در در سال 1402
شناسه ملی مقاله: JR_IJOCE-13-2_003
منتشر شده در در سال 1402
مشخصات نویسندگان مقاله:
M. Nabati
S. Gholizadeh
خلاصه مقاله:
M. Nabati
S. Gholizadeh
The purpose of the current study is to design steel moment resisting frames for optimal weight in the context of performance-based design. The performance-based design optimization of steel moment frames is a highly nonlinear and complex optimization problem having many local optima. Therefore, an efficient algorithm should be used to deal with this class of structural optimization problems. In the present study, a modified Newton metaheuristic algorithm (MNMA) is proposed for the solution of the optimization problem. In fact, MNMA is the improved version of the original Newton metaheuristic algorithm (NMA), which is a multi-stage optimization technique in which an initial population is generated at each stage based on the results of the previous stages. Two illustrative examples of ۵-, and ۱۰-story steel moment frames are presented and a number of independent optimization runs are achieved by NMA and MNMA. The numerical results demonstrate the better performance of the proposed MNMA compared to the NMA in solving the performance-based optimization problem of steel moment frames.
کلمات کلیدی: optimization, performance-based design, seismic total cost, steel moment frame.
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/1831600/