Development of a damage detection method for structures using non-linearity expression characteristics

Research Project

Project/Area Number	24560577
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Multi-year Fund
Section	一般
Research Field	Structural engineering/Earthquake engineering/Maintenance management engineering
Research Institution	Tokyo Institute of Technology
Principal Investigator	SASAKI Eiichi 東京工業大学, 理工学研究科, 准教授 (40311659)
Project Period (FY)	2012-04-01 – 2015-03-31
Project Status	Completed (Fiscal Year 2014)
Budget Amount *help	¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000) Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000) Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000) Fiscal Year 2012: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords	維持管理 / モニタリング / 異常検知 / 非線形性
Outline of Final Research Achievements	In this study, a new dynamic damage detection method for structures was proposed by developing non-linearity index analyzed from time series data obtained by sensing systems. The new dynamic damage detection method enables us to know the damage location and the damage level promptly just after the data acquisition. In this study, the applicability of the method was verified using the damage simulation results of structures and real-scale test results. Using the new damage index, non-linearity index, the sensor location arrangements can be proposed for sensing systems.

Report

(4 results)