Multi-objective optimization using response surface methodology-based surrogate model was employed to find optimal design parameter of TMD installed on structure under the El Centro earthquake. It is found that the RSM based weighted multi-objective optimized damper improves frequency responses and root mean square displacements of the structure without TMD by 31.6% and 82.3% under El Centro earthquake, respectively, and has an equal or higher performance than the conventionally designed dampers with respect to frequency responses and root mean square displacements and when applied to earthquakes.

• 도정윤(군산대학교 산학협력단 연구교수, 공학박사) | Do, Jeongyun Corresponding author
• 응구엔반동(군산대학교 토목환경공학부 박사과정) | Nguyen Van Dong
• 국성오(가온기술 과장, 박사수료) | Guk, Seongoh
• 김두기(군산대학교 토목환경공학부 정교수, 공학박사) | Kim, Dookie