Multi-objective optimization coupled with GA-ANN Metamodeling Method and NSGAⅡ was implemented to optimize TMD installed on 10 story structure under El Centro earthquake. Layer number and nodes of ANN were optimized by use of genetic algorithm and NSGA-Ⅱalgorithm was applied to solve multi-objective optimization problem prepared by GA-ANN metamodel. It is found that the GA-ANN multi-objective optimized damper improved frequency responses and root mean square displacements of the structure without TMD by 34.7% and 76.4% under El Centro earthquake, respectively.

• 도정윤(군산대학교 산학협력단 연구교수, 공학박사) | Do, Jeongyun Corresponding author
• 응구엔 반동(군산대학교 토목환경공학부, 박사과정) | Nguyen Van Dong