INTEGRITY ASSESSMENT METHOD OF BRIDGE FOR SCOUR

摘要

A method for assessing bridge integrity for scour is provided to assess the integrity of the bridge rapidly by measuring changes in a first-mode specific frequency of the bridge caused by corrosion. A method for assessing bridge integrity for scour comprises the steps of measuring an impact signal by heating a spot of an upper end of the bridge(S120), measuring vibration response signals for the impact from at least three spots(S130), measuring a frequency transfer function based on excitation, which is caused by the impact of the bridge, and the response signals(S140), and measuring a first mode specific frequency and a mode shape through a mode analysis program based on the frequency transfer function.