Correlations between Damage Indices and Seismic Parameters for Near-Field Earthquake Records
Abstract: Damage assessments
of concrete structures are essential to determine their seismic performances
under earthquake events. In this paper, six three bays two dimensional concrete
frames, five to ten story high, were analyzed under 30 near-field earthquake
records by nonlinear dynamic analyses. The seismic performances were evaluated
using two important overall damage indices which are: the modified Park-Ang
index and the maximum softening damage index. The correlations between several
seismic parameters and the two damage indices of the six concrete frames were
determined using Spearman correlation coefficient. In the end, the values of
correlations between seismic parameters and these two damage indices were
compared and discussed. Subsequently, seismic parameters that have the
strongest and the fairest correlation were presented. The numerical results of
correlations have shown that Velocity Spectrum Intensity (VSI) has a strong
interdependency with two overall structural damage indices (the modified
Park-Ang model and the maximum softening damage) for all of the reinforced
concrete frames.
Author: Soleymani, A., Safi,
M
Journal Code: jptsipilgg140030
