| Title |
A Study on the Estimation of Probabilistic Repair Reinforcement Cycles from Rating Curve of Steel Girder Bridges |
| Authors |
Kim, Hyun Bae ; Kim, Yong Su |
| Keywords |
Probabilistic Model ; Bridge Rating ; Bridge Aging ; Estimation of Repair or Reinforcement Cycles |
| Abstract |
The cost for maintenance of bridge structures such as repair or reinforcement is increasing. In addition, the efforts for inspection of bridge structures is becoming more important since the proper repair or reinforcement should be performed to save the maintenance cost and ensure the safety for public infrastructure. Therefore, it is studied on this paper to estimate the repair or reinforcement cycles using probabilistic approach for the steel-box girders of bridge superstructure. In addition, a computer simulation program is uniquely developed based on probabilistic approach to calculate the cycles derived from the function of age of bridge and performance rating curve which were previously studied. In order to ensure the reliability of results and appropriateness of the model, statistical analyses were performed. Also, the results were compared and proved to be similar with ones from previous statistical data related to the repair or reinforcement cycles. The results from this study is expected to be useful for the determination of proper time to repair or reinforce the bridge structure and raise the safetyness of bridge structure in advance. |