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JDR Vol.11 No.5 pp. 857-869
(2016)
doi: 10.20965/jdr.2016.p0857

Paper:

Dynamic Response of Tall Buildings on Sedimentary Basin to Long-Period Seismic Ground Motion

Nobuo Fukuwa, Takashi Hirai, Jun Tobita, and Kazumi Kurata

Nagoya University
Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan

Corresponding author,

Received:
February 29, 2016
Accepted:
September 2, 2016
Online released:
October 3, 2016
Published:
October 1, 2016
Keywords:
long-period long-term ground motion, natural period, damping, vibration experiment, virtual reality
Abstract

Characteristics of long-period seismic ground motion and response of tall buildings are investigated in this paper to promote earthquake proof countermeasures considering the damage caused by the 2011 Tohoku earthquake. 3D finite difference method and the reciprocal theorem are used to examine the effect of sedimentary basin structures on seismic wave amplification. Natural period and damping of tall buildings are evaluated by ambient vibration tests and earthquake response observation during construction or demolition of the buildings. The effects of dynamic soil-structure interaction on response amplification of tall buildings are confirmed applying wave propagation theory to a continuum building model. Finally, a newly built base-isolated building with an isolated rooftop laboratory is introduced for full-scale long-period shaking experiment by installing actuators and jacks. Experience of long-period shaking in the building is also available with virtual reality view of indoor damage, which is effective for promotion of seismic countermeasures such as fixing furniture and safe evacuation.

Cite this article as:
N. Fukuwa, T. Hirai, J. Tobita, and K. Kurata, “Dynamic Response of Tall Buildings on Sedimentary Basin to Long-Period Seismic Ground Motion,” J. Disaster Res., Vol.11, No.5, pp. 857-869, 2016.
Data files:
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Last updated on Dec. 11, 2018