Application of Earthquake Early Warning System to Seismic-Isolated Buildings
Keiichi Okada, Yutaka Nakamura, and Masaaki Saruta
Institute of Technology, Shimizu Corporation, Tokyo, Japan, 3-4-17 Etchujima, Koto-ku, Tokyo 135-8530, Japan
The Japan Meteorological Agency (JMA) has developed an earthquake early warning system to release information in the event of earthquake, and this system has been in practical use since 2007. Meanwhile, structural health monitoring technology has been attracting attention from those who want to save time in determining the structural health of buildings and who want to detect earthquake resistance performance and damage sustained. Practical applications of this technology have also begun. Seismic-isolated buildings have been developed to protect building structures and keep properties safe from earthquakes and this is significantly effective means to protect properties as a preventative measure against earthquake. The technology is based on the past experiences of the Great Hanshin Earthquake in 1995. Seismic disaster prevention technologies have been further developed since then against the severe, large scale damage to buildings and loss of human life which could be incurred by earthquakes. This should be a system as safe and secure hardware and software as a system in building structures, in addition to the current situation and earthquake disaster prevention of structure itself. This paper describes the earthquake early warning system used to tackle the threat of earthquakes. And the paper shows two applications of the earthquake early warning system and structural health monitoring technologies to seismic-isolated buildings.
-  K. Okada, M. Shiraishi, H. Iwaki, and K. Shiba, “Internet-based Remote Controlled Structure Monitoring System,” Proc. of 1st Int. Conf. on Structural Health Monitoring and Intelligent Infrastructure, Tokyo, Japan, pp. 1249-1257, Nov. 13-15, 2003.
-  M. Shiraishi and K. Okada, “Internet-Based Structural Health Monitoring System,” First Int. Workshop on Networked Sensing Systems (INSS), June 2004.
-  K. Okada, M. Shiraishi, K. Takeuchi, and Y. Yamamoto, “Structural Health Monitoring System using Displacement Memorizing Sensor (Part1,2),” Summaries of Proceeding of Annual Meeting of AIJ, Aug. 2005 (in Japanese).
-  K. Okada and M. Shiraishi, “Structural Health Monitoring System using Displacement Memorizing Sensor (Part 3: Verification of the System Dynamic Characteristics),” Summaries of Proceeding of Annual Meeting of AIJ, Sep. 2006 (in Japanese).
-  K. Okada and M. Shiraishi, “Peak Hold Sensor System for Post-Earthquake Structural Health Monitoring,” The 23rd Sensor Symposium on Sensor, Micromachines, and Applied System, Oct. 2006
-  I. Takahashi and S. Nambu, “Integrated Disaster Mitigation System Using Earthquake Early Warning in Shimizu Corporation,” Building Disaster Prevention, Vol.342, pp. 31-34, Jul. 2006 (in Japanese).
-  I. Takahashi and S. Nambu, “Integrated Disaster Mitigation System Using Earthquake Early Warning,” Proc. of 18th Research Conf. of The Urban Infrastructure and Technology Promotion Council (CD), Nov. 2006 (in Japanese).
-  K. Okada and T. Saito, “Evaluation of Dynamic Characteristics on Isolated Building using Health Monitoring System,” Summaries of Proceeding of Annual Meeting of AIJ, Sep. 2007 (in Japanese).
-  K. Okada and M. Shiraishi, “Dynamic Characteristics Evaluation of Building by Long Term Monitoring Data,” Summaries of Proc. of Annual Meeting of AIJ, Sep. 2008 (in Japanese).
-  Y. Nakamura, M. Saruta, T. Nakanishi et. al., “Development of the core-suspended isolation system,” The 14th World Conf. on Earthquake Engineering, Beijing, China, Oct. 2008.
-  K. Tamura, Y. Nakamura, and T. Saito, “A New Base-Isolated Long-Span Structure Overhanging Urban Infrastructure,” Proc. of the CTBUH 2004 Seoul Conf., Volume Three, Seoul, Korea, Oct. 2004.
This article is published under a Creative Commons Attribution-NoDerivatives 4.0 Internationa License.