Abstract
The Committee of Steel Structures of AIJ conducted earthquake damage reconnaissance over cities where severe ground shaking was recorded among Miyagi Prefecture and Fukushima Prefecture. Tsunami damage reconnaissance was also performed along the coastlines of Iwate, Miyagi, and Fukushima. The observed damage to steel buildings is categorized into that caused by ground motion and that caused by tsunami. Steel buildings exhibited excellent seismic performance. Buildings that used older cladding construction methods sustained damage to their claddings even though their structural performance was excellent. In some older buildings, severe ground motion caused damage to structural members and connections, which are the same modes of damage observed from past earthquakes. A unique feature is the damage caused by tsunami. In the most extreme cases, buildings were displaced from their original location and completely destroyed. In other cases, fracture of connections and members caused the building to tilt or collapse. In buildings whose claddings were completely washed away by tsunami, structural damage was minor. The extent of tsunami damage varied substantially depending on the locality of tsunami attack.
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References
Port and Airport Research Institute (2011) Damage assessment of ports in Tohoku region (Preliminary field survey report), Attachment 2: Reconnaissance results of respective ports, 23 March 2011
The 2011 Tohoku Earthquake Tsunami Joint Survey Group (2011) The 2011 off the Pacific coast of Tohoku Earthquake tsunami information. http://www.coastal.jp/tsunami2011/. Accessed 20 May 2011
Acknowledgments
This material is based on the damage reconnaissance reports prepared by the Steel Structures Committee of the Architectural Institute of Japan. Contribution of the damage reconnaissance team members, listed below, are greatly appreciated: Susumu Kuwahara, Seiji Mukaide, Akinobu Takada (Osaka Univ.); Keiichiro Suita, Yuji Koetaka, Yuichi Sato, Masanobu Sakashita (Kyoto Univ.); Naoto Yamada (JFE Shoji Construction Materials Sales Co.); Yoshiya Taniguchi, Sho Watanabe (Osaka City Univ.); Taichiro Okazaki, Taisuke Muraki, Hironori Otomo (Hokkaido Univ.); Tsuyoshi Tanaka, Hisashi Namba, Kenzo Taga (Kobe Univ.); Jun Kawaguchi, Yoshito Tomioka, Norihisa Hirabayashi, Seiko Tsuge, Bu-Sung Kong (Mie Univ.); Takamasa Yamamoto (Toyota National College of Tech.); and Hideki Idota, Atsushi Sato (Nagoya Institute of Tech.).
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© 2012 Springer Japan
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Midorikawa, M., Nishiyama, I., Tada, M., Terada, T. (2012). Damage to Steel Buildings. In: Preliminary Reconnaissance Report of the 2011 Tohoku-Chiho Taiheiyo-Oki Earthquake. Geotechnical, Geological and Earthquake Engineering, vol 23. Springer, Tokyo. https://doi.org/10.1007/978-4-431-54097-7_8
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DOI: https://doi.org/10.1007/978-4-431-54097-7_8
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