Damage Estimation of Full-Scale Infilled RC Frames under Pseudo-Dynamic Excitation by Means of Output-Only Modal Identification

To assess the health condition of structures and infrastructure during their service lives, continuous vibration-based monitoring represents a viable cost-effective solution. Model updating digital twins are increasingly adopted for damage detection. However, significant gaps uncertainties in quantification still arise. This work presents original data from output-only modal identification tests on full-scale, two-storey reinforced concrete (RC) frames subjected to pseudo-dynamic loading simulate seismic damage. The tested with two masonry infill wall configurations three-sided four-sided boundary conditions, observed is correlated scale. Output-only performed before after testing catch variations properties due Experimental used build refined finite element model able reliably static dynamic performance infilled RC allowed further assessment variation natural frequencies specimens at different earthquake intensities, correlation such levels, contribution structural non-structural components overall frequency variation.