为减少铁路钢梁桥的油漆工作,考虑桥梁构件使用抗锈蚀钢材以防止它本身生锈,因此,必须研究由于钢材使用时期的腐蚀而引起的像“刻痕”一样的使截面积缩小,疲劳强度降低的问题。疲劳试验是使用四种具有代表性类型的钢材,暴露于海边,在完全反复应力情况下进行的。 In order to reduce the paint work of the railway girder bridge, consider the use of anti-corrosive steel on the bridge member to prevent it from rusting. Therefore, it is necessary to study the reduction of the cross-sectional area and the fatigue caused by the corrosion during the steel service like “nicks” The problem of reduced strength. Fatigue tests were performed using four representative types of steel, exposed to the sea, under full stress.