ABSTRACT
The artificial accelerated corrosion experiments have been carried out for the cable galvanized steel wire of cable-stayed bridge under coupling salt spray environment and loading. The lost weight, tensile strength and other mechanical properties were proposed of the corrosion steel under static tension and alternating stressing. And then it is founded that the extension rate is the most sensitive factor for corrosion fatigue of the galvanized steel wire after interruption. Then stress corrosion and corrosion fatigue mechanism were discussed for the galvanized steel wire. The finite element simulation model was established and the influence of full corrosion and corrosion pit depth was analyzed to equivalent stress distribution in the galvanized steel wire.
