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Connection topology optimization of steel moment frames using metaheuristic algorithms
Highlights Cost of steel moment frames can be reduced by optimally limiting and locating moment connections. Varying connections as either fully fixed or fully pinned introduces the idea of connection topology optimization. Novel metaheuristic algorithms are developed to simultaneously optimize connection topology and member sections. All algorithms perform comparably and can be used for simultaneous size and connection topology optimization. Ordering of the moment connections in optimal frames resembles a global structural system.
Abstract This paper details the optimization of steel moment frames in which, in addition to the beam and column sections, the beam-to-column connection type is also variable. In these connection topology optimizations, the optimal trade-off between the lateral stiffness provided by moment connections and lower cost of pin connections is determined by identifying the most efficient arrangement of moment connections. Four metaheuristic algorithms are used to optimize two different frames and their performance is compared. Results indicate that the cost of a frame is minimized when moment connections are arranged in a manner that resembles a global structural system.
Connection topology optimization of steel moment frames using metaheuristic algorithms
Highlights Cost of steel moment frames can be reduced by optimally limiting and locating moment connections. Varying connections as either fully fixed or fully pinned introduces the idea of connection topology optimization. Novel metaheuristic algorithms are developed to simultaneously optimize connection topology and member sections. All algorithms perform comparably and can be used for simultaneous size and connection topology optimization. Ordering of the moment connections in optimal frames resembles a global structural system.
Abstract This paper details the optimization of steel moment frames in which, in addition to the beam and column sections, the beam-to-column connection type is also variable. In these connection topology optimizations, the optimal trade-off between the lateral stiffness provided by moment connections and lower cost of pin connections is determined by identifying the most efficient arrangement of moment connections. Four metaheuristic algorithms are used to optimize two different frames and their performance is compared. Results indicate that the cost of a frame is minimized when moment connections are arranged in a manner that resembles a global structural system.
Connection topology optimization of steel moment frames using metaheuristic algorithms
Alberdi, Ryan (author) / Murren, Patrick (author) / Khandelwal, Kapil (author)
Engineering Structures ; 100 ; 276-292
2015-06-06
17 pages
Article (Journal)
Electronic Resource
English
Connection topology optimization of steel moment frames using metaheuristic algorithms
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