DAMAGE IDENTIFICATION TECHNIQUE FOR BRIDGES USING STATIC RESPONSE

초록

A system identification technique based on the static displacement changes due to damages is proposed to enhance the efficiency of damage detection in flexural structures. For this, an elastic damage load theorem was derived and verified. The error function was also defined and applied to damage identification process. Comparisons with numerical and experimental tests were performed to investigate the applicability and advantage of the proposed theorem. From numerical and experimental application of the elastic damage load theorem to damage identification, it can be concluded that the elastic damage load theorem may be useful in the long term health monitoring and the damage assessment using periodical static loading test.