Time dependent seismic fragility and serviceability assessment of reinforced concrete frames under chloride induced corrosion.

ABSTRACT: Chloride-induced corrosion represents a critical deterioration mechanism for reinforced concrete (RC) structures, yet its time-dependent impact on structural reliability remains insufficiently investigated. This study integrates a corrosion progression model with finite element analysis and the First-Order Reliability Method (FORM) to evaluate the seismic performance and serviceability of a single-bay, single-story RC frame throughout a 60-year service life. Nonlinear dynamic, static, and modal analyses were conducted using OpenSees and MATLAB to quantify failure probabilities for both drift-based seismic damage states and serviceability criteria (deflection and vibration). The results demonstrate that corrosion significantly amplifies failure risk: for slight, moderate, and extensive seis

SUBMITTER: Kordtabar B 

PROVIDER: S-EPMC12627506 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature