A Comprehensive Fatigue Analysis Model for Structural Integrity Assessment in Aging Infrastructure

This paper presents the Comprehensive Fatigue Analysis Model for Structural Integrity Assessment (CFAM-SIA), an advanced model designed to evaluate the structural health of aging infrastructure following the replacement of critical components. The CFAM-SIA integrates sophisticated finite element analysis (FEA), cumulative fatigue life assessments using Miner's Rule, and material fatigue predictions based on S-N curves and crack propagation theories. Applicable to both reinforced concrete (RC) and steel structures, the model offers a nuanced understanding of infrastructure performance post-replacement. By incorporating structural health monitoring (SHM) systems, CFAM-SIA provides real-time feedback on structural integrity. Through simulation and comparing with current methods, this model demonstrates its effectiveness in enhancing the longevity and safety of aging structures subjected to cyclic loads, particularly in bridge pier replacement scenarios.

کلیدواژه ها:

CFAM-SIA Fatigue Analysis Model ، Finite Element Analysis (FEA) ، Structural Health Monitoring (SHM) ، Crack Propagation ، Cyclic Loads ، Bridge Pier Replacement