Fragility curves for single story precast industrial buildings

Abstract

In this study, fragility curves for existing precast industrial buildings were calculated. Depending on the structural parameters such as column section dimension, longitudinal reinforcement ratio, column height and stirrup spacing, 16 typical building models were used. A total of 360 ground motions from 28 earthquakes were used for nonlinear time history analysis. Peak ground velocity, which is assumed to have lognormal distribution, is chosen as the ground motion parameter. Lateral displacement was selected as structural response parameter. Damage states and damage levels for columns were defined according to Turkish Earthquake Code. Limit displacements for damage levels were calculated based on the concrete strain and longitudinal reinforcement at the critical section of columns. Results show that column section dimension and stirrup spacing is more effective on fragility.