6Land Infrastructure and Transport Technology Policy Research Institute. The Investigation about Seismic Damage of Building in the Japanese earthquake [ EB/ OL], 2011, http://www.kenken, go. jp/japanese/ contents/topics/20110311/20110311 saigai-002, pdf.
8Administrative Legal Person Independent Research Institute. The Investigation about Seismic Damage of Building in the Japanese Earthquake [ EB/OL ] , 2011 , http://www, kenken, go. jp/japanese/contents/topics! 20110311/20110311 saigai-003, pdf.