title: Locating damage using integrated global-local approach with wireless sensing system and single-chip impedance measurement device.
abstract: This study developed an integrated global-local approach for locating damage on building structures. A damage detection approach with a novel embedded frequency response function damage index (NEFDI) was proposed and embedded in the Imote2.NET-based wireless structural health monitoring (SHM) system to locate global damage. Local damage is then identified using an electromechanical impedance- (EMI-) based damage detection method. The electromechanical impedance was measured using a single-chip impedance measurement device which has the advantages of small size, low cost, and portability. The feasibility of the proposed damage detection scheme was studied with reference to a numerical example of a six-storey shear plane frame structure and a small-scale experimental steel frame. Numerical and experimental analysis using the integrated global-local SHM approach reveals that, after NEFDI indicates the approximate location of a damaged area, the EMI-based damage detection approach can then identify the detailed damage location in the structure of the building.
authors.affiliation: Sinotech Engineering Consultants, Inc., No. 280, Xinhu 2nd Road, Neihu Distict, Taipei 11494, Taiwan.
authors.forename: Tzu-Hsuan
authors.identifier: 0000-0001-7833-5394
authors.initials: TH
authors.lastname: Lin
authors.affiliation: Department of Civil Engineering, National Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu 300, Taiwan.
authors.forename: Yung-Chi
authors.identifier: 0000-0002-0613-7003
authors.initials: YC
authors.lastname: Lu
authors.affiliation: Department of Civil Engineering, National Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu 300, Taiwan.
authors.forename: Shih-Lin
authors.initials: SL
authors.lastname: Hung
mesh_terms: D004868:Equipment Failure; D059015:Wireless Technology