교량의 동적거동을 이용한 차량하중추정

초록

In order to maintain the bridge structure, it is very important to estimate the moving force on the bridge. An algorithm is proposed for estimating moving loads of a bridge using acceleration and FBG sensors. The effects of impact and vibration can be reduced by using the dynamic governing equation. It is different from B-WIM(Bridge Weigh-In-Motion) systems developed based on static algorithms. The proposed algorithm computes displacement analytically from measured strain data and escapes from the numerical difficulties in integration and differentiation by positioning FBG sensors and accelerometers at the same location.