Performance of reinforced concrete buildings in the 2016 Kumamoto earthquakes and seismic design in Japan
This report outlines the observations of an NZSEE team of practitioners and researchers who travelled to the Kumamoto Prefecture of Japan on a reconnaissance visit following the April 2016 earthquakes. The observations presented in this report are focussed on the performance of reinforced concrete (RC) buildings throughout Kumamoto Prefecture. It was found overall that modern RC buildings performed well, with patterns of damage which highlighted a philosophy of designing stiffer buildings with less of an emphasis on ductile behaviour. To explore this important difference in design practice, the Japanese Building Standard Law (BSL) is summarised and compared with standard New Zealand seismic design practices and evaluation methods.
Epstein W, Nishimoto T, Okumura K, Swan S and Yanev P (2016) “The Kumamoto Earthquake Investigation: A Preliminary Report”.
Chiaro G, Alexander G, Brabhaharan P, Massey C, Koseki J, Yamada S and Aoyagi Y (2017). “Reconnaissance report on geotechnical and geological aspects of the 2016 Kumamoto Earthquake, Japan”. Bulletin of the New Zealand Society for Earthquake Engineering, 50(3): 365-393. DOI: https://doi.org/10.5459/bnzsee.50.3.365-393
The Japan Times (2016). “Last Kumamoto quake victim ID’d leaving death toll at 50”. http://www.japantimes.co.jp/news/2016/08/14/national/last-kumamoto-quake-victim-idd-bringing-toll-50/#.WATfj4OLS9I, Retrieved [November 13, 2016]
Japan Seismic Hazard Information Station (2016). “J-SHIS Japan Seismic Hazard Information”. http://www.j-shis.bosai.go.jp/map/?lang=en, Retrieved [November 13, 2016].
Kabeyasawa T and Shiohara H (2003). “Performance-based Engineering for Earthquake Resistant Reinforced Concrete Structures: A Volume Honoring Shunsuke Otani”. Department of Architecture, Faculty of Engineering, University of Tokyo, Tokyo, 550 pages.
The Building Standard Law of Japan (2016). “The Building Center of Japan (BCJ)”. Tokyo, Japan.
Teshigawara M (2011). “Preliminary Reconnaissance Report of the 2011 Tohoku-Chiho Taiheiyo-Oki Earthquake”. Geotechnical, Geological and Earthquake Engineering, Appendix A.
Building Research Institute (2004). “Standard for Seismic Evaluation of Existing Reinforced Concrete Buildings, 2001”. Japan: The Japan Building Disaster Prevention Association.
ASCE 41-06 (2006). “Seismic Rehabilitation of Existing Buildings”. American Society of Civil Engineers, Reston, Virginia.
Eurocode 8 Part 3 (2005). “Assessment and Retrofitting of Buildings”. European Committee for Standardization, Brussels, Belgium.
Elwood KJ, Marder K, Pampanin S, Cuevas Ramirez A, Kral M, Smith P, Cattanach A and Stannard M (2016). “Draft framework for assessing residual capacity of earthquake-damaged concrete buildings”. Proceedings of the Annual NZSEE Conference, Christchurch, New Zealand.
Nakano Y and Tashigawara M (2007). “Seismic Evaluation and Rehabilitation of Vulnerable RC Buildings – Experiences and Lessons in Japan”. Indonesia-Japan Joint Seminar on Mapping out Strategies for Better Seismic Disaster Mitigation, Jakarta, Indonesia.
Maeda M, Matsukawa K and Ito Y (2014). “Revision of Guideline for Post-Earthquake Damage Evaluation of RC Buildings in Japan”. Proceedings of the Tenth U.S. National Conference on Earthquake Engineering, Anchorage, Alaska. https://nees.org/resources/11882/download/10NCEE-000942.pdf (accessed April 2017).
Copyright (c) 2017 Mehdi Sarrafzadeh, Ken J. Elwood, Rajesh P. Dhakal, Helen Ferner, Didier Pettinga, Mike Stannard, Masaki Maeda, Yoshiaki Nakano, Tomihisa Mukai, Takuya Koike
This work is licensed under a Creative Commons Attribution 4.0 International License.