標高差を考慮した逆距離加重法による鋼桁の結露発生評価に関する検討

抄録

In recent years, the number of steel bridges that have been in service for a long time is increasing. Corrosion is one of the causes of deterioration of steel bridges, and it is important to efficiently maintain and manage the corroded steel bridges. This study focused on dew condensation, one of the causes of corrosion. In order to properly understand the occurrence of corrosion due to condensation, the meteorological data and the occurrence of dew condensation were predicted using inverse distance weighting method (IDW) at any point. IDW only considers the distance, not elevation difference. Therefore, large errors occurred when predicting bridges in the mountains. Then, the evaluation was performed by the IDW using a modified formula considering the elevation difference.