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http://dx.doi.org/10.1007/s13296-018-0055-5

MOGA-Based Structural Design Method for Diagrid Structural Control System Subjected to Wind and Earthquake Loads  

Kim, Hyun-Su (Division of Architecture, Architectural and Civil Engineering, Sunmoon University)
Kang, Joo-Won (School of Architecture, Yeungnam University)
Publication Information
International journal of steel structures / v.18, no.5, 2018 , pp. 1598-1606 More about this Journal
Abstract
An integrated optimal structural design method for a diagrid structure and control device was developed. A multi-objective genetic algorithm was used and a 60-story diagrid building structure was developed as an example structure. Artificial wind and earthquake loads were generated to assess the wind-induced and seismic responses. A smart tuned mass damper (TMD) was used as a structural control system and an MR (magnetorheological) damper was employed to develop a smart TMD (STMD). The multi-objective genetic algorithm used five objectives including a reduction of the dynamic responses, additional stiffness and damping, mass of STMD, capacity of the MR damper for the integrated optimization of a diagrid structure and a STMD. From the proposed method, integrated optimal designs for the diagrid structure and STMD were obtained. The numerical simulation also showed that the STMD provided good control performance for reducing the wind-induced and seismic responses of a tall diagrid building structure.
Keywords
Integrated structural optimal design; Diagrid structural system; Smart tuned mass damper; Multi-objective genetic algorithm; Vibration control; Wind excitation; Earthquake load;
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