Wavelet-Based Damage Detection in Reinforced Concrete Structures Subjected to Seismic Excitations

The feasibility of using output-only model-free wavelet-based techniques for damage detection in reinforced concrete structures subjected to seismic loads is explored through the analysis of the results of a full scale shake table test of a reinforced concrete bridge column recently performed at the NEES Large High Performance Outdoor Shake Table. The evaluated approaches are based solely in the analysis of the acceleration time histories recorded in the structure. The viability of using numerical models to validate this type of damage detection methodologies is also evaluated. Wavelet analyses were capable of identifying the rebar fracture episodes and partially identified the frequency shifts in the structure as the inelastic demand increased. It was also found that, depending on the methodology employed, the use of numerical models to validate damage detection techniques can oversimplify the actual problem and/or induce spurious irregularities.

[1]  Luis A. Montejo,et al.  SYNCHROSQUEEZED WAVELET TRANSFORM FOR FREQUENCY AND DAMPING IDENTIFICATION FROM NOISY SIGNALS , 2012 .

[2]  Zhikun Hou,et al.  Wavelet‐Based Structural Health Monitoring of Earthquake Excited Structures , 2006, Comput. Aided Civ. Infrastructure Eng..

[3]  Clotaire Michel,et al.  Time-frequency analysis of Transitory/Permanent frequency decrease in civil engineering structures during earthquakes , 2008 .

[4]  L. A. Montejo,et al.  Frequency Content Effect on the Efficiency of Wavelet and Hilbert-Huang Transforms for Health Monitoring , 2012 .

[5]  Lorenza Petrini,et al.  Experimental Verification of Viscous Damping Modeling for Inelastic Time History Analyzes , 2008 .

[6]  Gian Michele,et al.  Direct Displacement-Based Seismic Design of Structures , 2007 .

[7]  Ahsan Kareem,et al.  Wavelet Transforms for System Identification in Civil Engineering , 2003 .

[8]  Mihailo D. Trifunac,et al.  Earthquake damage detection in the Imperial County Services Building II: Analysis of novelties via wavelets , 2010 .

[9]  Chin-Hsiung Loh,et al.  System identification and damage evaluation of degrading hysteresis of reinforced concrete frames , 2011 .

[10]  T. Pan,et al.  Application of wavelet theory to identify yielding in seismic response of bi‐linear structures , 2002 .

[11]  Z. Bažant,et al.  Fracture and Size Effect in Concrete and Other Quasibrittle Materials , 1997 .

[12]  Ayaho Miyamoto,et al.  A Comparative Study of Modal Parameter Identification Based on Wavelet and Hilbert–Huang Transforms , 2006, Comput. Aided Civ. Infrastructure Eng..

[13]  Dimitrios G. Lignos,et al.  Use of Wavelet-Based Damage-Sensitive Features for Structural Damage Diagnosis Using Strong Motion Data , 2011 .

[14]  Clotaire Michel,et al.  Time-Frequency Analysis of Small Frequency Variations in Civil Engineering Structures Under Weak and Strong Motions Using a Reassignment Method , 2010 .

[16]  Enrico Spacone,et al.  Localization Issues in Force-Based Frame Elements , 2001 .

[17]  J. Mander,et al.  Theoretical stress strain model for confined concrete , 1988 .

[18]  Zhikun Hou,et al.  Application of Wavelet Approach for ASCE Structural Health Monitoring Benchmark Studies , 2004 .

[19]  Stéphane Mallat,et al.  A Theory for Multiresolution Signal Decomposition: The Wavelet Representation , 1989, IEEE Trans. Pattern Anal. Mach. Intell..

[20]  A. Grossmann,et al.  DECOMPOSITION OF HARDY FUNCTIONS INTO SQUARE INTEGRABLE WAVELETS OF CONSTANT SHAPE , 1984 .

[21]  L A Montejo,et al.  WAVELET AND HHT BASED IDENTIFICATION OF DIFFERENT LEVELS OF INELASTIC ACTION IN RC STRUCTURES , 2012 .

[22]  Luis E. Suarez,et al.  Applications of wavelet transforms to damage detection in frame structures , 2004 .

[23]  Mahendra P. Singh,et al.  Detecting sudden changes in stiffness using high‐pass filters , 2012 .

[24]  A. Miyamoto,et al.  Wavelet transform-based modal parameter identification considering uncertainty , 2006 .

[25]  Dimitrios G. Lignos,et al.  Development of fragility functions as a damage classification/prediction method for steel moment‐resisting frames using a wavelet‐based damage sensitive feature , 2012 .

[26]  Alessandro Dazio,et al.  Simulating Maximum and Residual Displacements of RC Structures: I. Accuracy , 2011 .

[27]  Mehdi Saiidi Movahhed,et al.  Simple and Complex Models for Nonlinear Seismic Response of Reinforced Concrete Structures , 1979 .

[28]  Zbigniew Zembaty,et al.  Dynamic identification of a reinforced concrete frame in progressive states of damage , 2006 .

[29]  I. Daubechies,et al.  Biorthogonal bases of compactly supported wavelets , 1992 .

[30]  Mihailo D. Trifunac,et al.  Earthquake damage detection in the Imperial County Services Building I: The data and time–frequency analysis , 2007 .

[31]  Enrico Spacone,et al.  FIBRE BEAM–COLUMN MODEL FOR NON‐LINEAR ANALYSIS OF R/C FRAMES: PART I. FORMULATION , 1996 .