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Implementation of Real-time Seismic Diagnostic System on Emergency Management Center Buildings: In Case of the 2018 Osaka earthquake

Kazuhiro Hayashi and Taiki Saito
Department of Arch. and Civil Eng., Toyohashi University of Technology Toyohashi, Japan
Abstract— Currently in Japan, a field survey by building experts is required to determine whether earthquake-afflicted buildings can continue to be used after an earthquake, so that official decisions on national and municipal-level assistance cannot be made without the completed survey results. Authors plan to introduce an automated real time seismic diagnostic system to the disaster prevention centers. This system consists of the seismometers installed in the building and observation data are saved in Internet clouds. Immediately after the earthquake, the system performs a simple diagnosis on the residual seismic performance of the building and notifies the results by e-mail. The MDOF lumped-mass model for use in the simple diagnosis is assumed to have normal tri-linear hysteretic characteristics at each story, using constants determined by referring to the analytical 3D frame model. This paper explains the proposed system and introduces the results of trial operation to the actual city hall buildings at the 2018 Osaka earthquake. After the Osaka Earthquake, the system was able to notify disaster prevention officials at the city hall of the results of the simple diagnosis within two minutes after the earthquake ended.

Index Terms—Disaster prevention centers, Monitoring, Real time, Internet, Social implementation

Cite: Kazuhiro Hayashi and Taiki Saito, "Implementation of Real-time Seismic Diagnostic System on Emergency Management Center Buildings: In Case of the 2018 Osaka earthquake," International Journal of Structural and Civil Engineering Research, Vol. 8, No. 2, pp. 159-164, May 2019. doi: 10.18178/ijscer.8.2.159-164
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