Response Control of Base Isolated Structure by Tuned Mass Damper Subjected to Long-Period Earthquake Motions

10.6567/IFToMM.14TH.WC.OS19.013

Akira Sone

Response control ； Base isolated structure ； Longperiod earthquake motion

Proceedings of the 14th IFToMM World Congress

14th-4（2015 / 11 / 04）

681 - 687

英文

In this paper, from the viewpoint of anti-earthquake design, the isolation performance of various types of base isolated structures with tuned mass damper (TMD) subjected to long-period earthquake motions is evaluated. Figure 3 shows the analytical model used in this study. Using three types of dampers such as oil damper, steel bar damper and nonlinear viscous damper, the maximum acceleration responses of base isolated structures subjected to not only actual short-period earthquakes like El Centro and Great Kanto earthquake motions like Nagoya-Sunnomaru earthquake motion are compared. Figures 2 shows the acceleration response spectra used in this study. From this comparison, it is clear that base isolated structure with TMD can suppress relatively the maximum responses against both earthquake motions.