Key parameters governing the dynamic response of long-period structures |
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| Authors: | N Fukuwa J Tobita |
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| Institution: | (1) Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan |
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| Abstract: | The present study describes the important factors (period, duration, and intensity) involved in evaluating input ground motion
and structural response for the design of long-period structures such as high-rise buildings and base-isolated buildings.
First, the fundamental dynamic properties of high-rise buildings are explained based on the results of newly introduced vibration
observations programs. Next, the distribution of the predominant period and duration of seismic ground motion within the Nobi
Plain, one of the largest sedimentary plains in Japan, is discussed with respect to the possibility of resonance of long-period
structures. Finally, we introduce a recently developed long-stroke shaking table that is intended to convince structural engineers
and building owners to take adequate countermeasures against large floor response in high-rise buildings because of resonance.
Presented at the International Workshop on Long-Period Ground Motion Simulation and Velocity Structures Earthquake Research
Institute, University of Tokyo, Tokyo, November 14–15, 2006. |
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| Keywords: | Structural response High-rise buildings Resonance Damping Long-period input Shaking table |
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