000013802 001__ 13802
000013802 005__ 20161114170357.0
000013802 04107 $$aeng
000013802 046__ $$k2011-05-25
000013802 100__ $$aPnevmatikos, N.
000013802 24500 $$aDamage Detection of Frame Structures Subjected to Earthquake Loading

000013802 24630 $$n3.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013802 260__ $$bNational Technical University of Athens, 2011
000013802 506__ $$arestricted
000013802 520__ $$2eng$$aThis paper deals with an application of wavelet analysis for damage detection of frame structure subjected to earthquake excitation. Non linear dynamic analysis has been performed and response data at each story are obtained which are used as simulation data. Damage in the frame is introducing by the non linear behaviour of columns and beams. In order the structural members go beyond the elastic limit and start yielding the earthquake excitation was scaled up with appropriate scale factor. Discrete wavelet analysis was performing in order to analyze the simulation response data for each floor because the dynamic behaviour of inelastic structures subjected to an earthquake is a non-stationary process. It was shown that structural damage, due to non linear behaviour of structural elements and the time when this damage occurred, can be clearly detected by spikes in the wavelet details. The effect of noise is taken into account by adding a white Gaussian noise to the simulation response data and discrete wavelet analysis was performing again. It was observed that if the level of details and the order of wavelets are increased, spikes can be detected again and damage would be recognized. Results show the great promise of the wavelet approach for damage detection and structural health monitoring.

000013802 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013802 653__ $$aHealth monitoring, Damage detection, Discrete Wavelet analysis, Structural dynamics, Earthquake engineering.

000013802 7112_ $$aCOMPDYN 2011 - 3rd International Thematic Conference$$cIsland of Corfu (GR)$$d2011-05-25 / 2011-05-28$$gCOMPDYN2011
000013802 720__ $$aPnevmatikos, N.
000013802 8560_ $$ffischerc@itam.cas.cz
000013802 8564_ $$s393280$$uhttps://invenio.itam.cas.cz/record/13802/files/693.pdf$$yOriginal version of the author's contribution as presented on CD, section: RS 18 Repair and Retrofit of Structures.
000013802 962__ $$r13401
000013802 980__ $$aPAPER