Abstract
Damage detection of a bridge based on vibration induced by moving vehicles is proposed. Accuracy of damage detection depends on observation and damage points. In this research, sensitivity of observation or damage points is estimated by using posterior covariance matrix of estimation error and information entropy. The estimation is not reliable where the sensitivity is low because it is strongly affected by prior information. New type of prior information is proposed and applied to a simple numerical problem for illustration of usefulness. The method is applied to the damage detection of experiment model with vehicle-induced vibration.
