Effects of Local Damage on Building Collapse due to Collision of Tsunami-Driven Ships

2020 Fiscal Year Final Research Report

• Project/Area Number: 18H01581
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 23010:Building structures and materials-related
• Research Institution: The University of Tokyo
• Principal Investigator: Yoshiaki Nakano 東京大学, 生産技術研究所, 教授 (10212094)
• Co-Investigator(Kenkyū-buntansha): 松川 和人 東京大学, 生産技術研究所, 助教 (50709186)
• Project Period (FY): 2018-04-01 – 2021-03-31
• Keywords: 津波

Outline of Final Research Achievements

After the 2011 Great East Japan Earthquake, the number of research activities about tsunami load and building performance against tsunami has been increasing. Although quantitative tsunami load evaluation has been proposed, quantitative safety evaluation against building collapse due to collision of tsunami-driven ships is still insufficient because of the limited number of studies. In this research, effects on building collapse due to collision of tsunami-driven ships is investigated, and the design procedure to avoid building collapse is proposed through collision tests of building column and frame specimens.

Free Research Field

耐震工学・耐（対）津波工学

Academic Significance and Societal Importance of the Research Achievements

本研究により，大規模津波が発生した際に生じうる，津波漂流船舶の建築物への衝突と，それによる建築物の崩壊に対する知見の蓄積が行われた。本研究で提案された，津波漂流船舶衝突に対する安全性検討手法は，柱の軸力保持能力評価にまだ課題を残すものの，将来の津波被害の低減を通して，安全な社会へ貢献するものと考えられる。