Feasibility study on base isolated structure incorporated with viscous mass damper

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K06284
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Building structures/Materials
• Research Institution: Kansai University (2016-2017); Tohoku University (2015)
• Principal Investigator: Ikenaga Masahiro 関西大学, 環境都市工学部, 准教授 (50552402)
• Co-Investigator(Kenkyū-buntansha): 五十子 幸樹 東北大学, 災害科学国際研究所, 教授 (20521983)
• Research Collaborator: INOUE Norio 東北大学, 名誉教授 (50250725)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 免震構造 / 粘性マスダンパー / 最適設計手法

Outline of Final Research Achievements

Feasibility study on viscous mass damper for base isolated structures are considered. Two big topics are done, first the dynamic loading test by real-scale viscous mass damper, second numerical analysis for damper design.
In the dynamic test, real time hybrid simulation is adopted to know the damper behavior under seismic events. The result shows that the damper behavior shows strong non-linearity and the characteristics becomes clear for the analysis model.
On the numerical analysis study, four damper parameters are decided by the optimum design method. The optimized viscous mass damper are compared with the ordinary oil damper and the advantages of the viscous mass damper are discussed. The results indicate that the optimized viscous mass damper incorporated into the base isolated structures shows better result as to not only the seismic control but also the isolated capability.

Free Research Field

建築構造