<p>A comprehensive database comprising 156 quasi-static test results of corroded intermediate short reinforced concrete (RC) column specimens was collected from 22 test campaigns. Based on the level of corrosion, these columns were categorized into four groups: no corrosion (NC), light corrosion (LC), moderate corrosion (MC), and severe corrosion (SC). Four damage states for intermediate short RC columns, along with their corresponding repair strategies, were defined. Drift-based fragility functions were developed for these columns at various corrosion levels. Additionally, the effects of corrosion on the fragility functions of the columns were thoroughly discussed. The results of the Lilliefors test indicated that the assumption of a lognormal distribution for all fragility functions was valid at the 5% significance level. The median values of the fragility functions for the columns in all damage states gradually decrease as corrosion levels increase, with a particularly pronounced decrease observed in severe damage (DS3) and near-collapse damage (DS4). However, no clear pattern of change is exhibited in the logarithmic standard deviation as corrosion levels increase. The probability of intermediate short columns reaching the four damage states increases with higher levels of corrosion, and neglecting the effects of reinforcement corrosion can significantly impact the results of seismic damage assessments for in-service columns. These fragility functions can serve as a practical tool for seismic performance assessments and post-seismic loss calculations of in-service RC buildings in corrosive environments.</p>