| A detailed crevice corrosion shape of the gusset plates that were cut from the upper connections of the steel truss bridge was measured by using the laser measurement equipment, and the actual crevice corrosion state of the outside and the inside surfaces of the gusset plates and the flange of diagonal member were evaluated on the basis of the corrosion depth distribution of these surfaces．Based on the detailed results of corrosion measurement, the crevice corrosion and the corrosion characteristics of the gusset plate connection were clarified. |
