Development of Numerical Analysis Method for Wood House Collapsed by Tsunami Wave Force Using Distinct Element Method and Computational Fluid Dynamics

Research Project

Project/Area Number	24780174
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Multi-year Fund
Research Field	Wood science
Research Institution	National Institute for Land and Infrastructure Management (2013-2014) Building Research Institute (2012)
Principal Investigator	NAKAGAWA Takafumi 国土技術政策総合研究所, 住宅研究部, 主任研究官 (60414968)
Project Period (FY)	2012-04-01 – 2015-03-31
Project Status	Completed (Fiscal Year 2014)
Budget Amount *help	¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000) Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000) Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000) Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords	個別要素法 / 粒子法 / 津波 / 木造住宅 / 数値解析 / 倒壊解析 / 東日本大震災 / 被害調査
Outline of Final Research Achievements	In this report, we developed a numerical analysis method to be able to trace collapsing process of wooden houses by tsunami load. We developed the new numerical analysis program that employed distinct element method and computational fluid dynamics. The numerical simulations for two story wood houses were carried out by using our developed program. As a result, it was found that our new analysis method could carry out the collapsing process simulation include the overturning of wooden houses by post-and-beam construction wooden houses and further research was needed for precise calculations.