Structural design of active seismic isolation floor with a charging function

Hayato Nakakoji; Nanako Miura

doi:10.1117/12.2219538

15 April 2016 Structural design of active seismic isolation floor with a charging function

Hayato Nakakoji, Nanako Miura

Proceedings Volume 9799, Active and Passive Smart Structures and Integrated Systems 2016; 97992Y (2016) https://doi.org/10.1117/12.2219538
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2016, Las Vegas, Nevada, United States

Abstract

This study shows an optimum structure of a seismic isolation floor against horizontal ground motions. Although a seismic isolation floor is effective with vibration reduction, the response of the floor becomes larger when excited by long-period ground motions. It is shown that caster equipment move and suffer damage in a seismic isolation structure by an experiment. Moreover, the permissible displacement of the floor is limited. Therefore, the focus is on an active seismic isolation. About active control, the system cannot operate without power supply. To solve these problems an energy regeneration is considered in our previous study. These studies only analyze simple model and did not choose the suitable structure for active control and energy regeneration. This research propose a new structure which has regenerated energy exceeds the energy required for the active control by numerical simulation.

Citation Download Citation

Hayato Nakakoji and Nanako Miura "Structural design of active seismic isolation floor with a charging function", Proc. SPIE 9799, Active and Passive Smart Structures and Integrated Systems 2016, 97992Y (15 April 2016); https://doi.org/10.1117/12.2219538

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