000019307 001__ 19307
000019307 005__ 20170118182309.0
000019307 04107 $$aeng
000019307 046__ $$k2017-01-09
000019307 100__ $$aGaviria, Carlos
000019307 24500 $$aIdentification of Instantaneous Stiffness and Modal Damping Ratio in a Reinforcement Concrete Bridge Column Subjected To Seismic Loads

000019307 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019307 260__ $$b
000019307 506__ $$arestricted
000019307 520__ $$2eng$$aAn iterative unscented Kalman filter (UKF) combined with a piece-wise nonlinear model is proposed to estimate instantaneous stiffness and damping ratios during the response of the structure to the earthquake motion. The methodology is evaluated based on simulated and experimental data collected on a real-scale RC column test performed at the NEES Large High Performance Outdoor Shake Table. Results show that the identified instantaneous stiffness and damping ratios are in close agreement with the actual stiffness and total hysteretic damping exhibited by the structure, respectively. Moreover, it was found that the maximum values of damping and minimum values of stiffness reached by the structure during its dynamic response are better indicator of damage than post-event identified properties.

000019307 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019307 653__ $$aHealth Monitoring; Kalman Filter; System Identification; Reinforced Concrete; Bridge

000019307 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019307 720__ $$aGaviria, Carlos$$iMontejo, Luis
000019307 8560_ $$ffischerc@itam.cas.cz
000019307 8564_ $$s686301$$uhttps://invenio.itam.cas.cz/record/19307/files/3347.pdf$$yOriginal version of the author's contribution as presented on USB, paper 3347.
000019307 962__ $$r16048
000019307 980__ $$aPAPER