Structural health evaluation of Phu My cable-stayed bridge using correlation analysis of vibrations at multiple locations

Abstract

This study introduces a novel method to assess the mechanical behavior of the Phu My cable-stayed bridge through correlation analysis of vibration signals collected under normal traffic conditions. This method not just monitors changes in vibration parameters but provides a new framework for detecting structural damage and degradation. By using correlation coefficients and standard deviation, the method enhances the accuracy of structural health assessments, offering a practical alternative to traditional vibration analysis techniques. The main contributions of the study include proposing the correlation spectrum as a feature for damage identification and improving understanding of the bridge’s response to service load conditions. The research results also lay the foundation for the development of automatic monitoring systems, optimizing maintenance processes, and improving the safety use of cable-stayed bridges.