Axial Bearing Capacity of Circular Steel Pipes with Random Pitting Corrosion

Abstract:

In view of the effect of random pitting corrosion on axial bearing capacity of circular steel pipes， the changing rule of bearing capacity was revealed along with the mass loss ratio. A reduction factor was introduced to investigate the effect of corrosion thickness， pitting size， steel grade and wall thickness of steel pipes. The analytical formula for predicting the reduction factor was proposed. This formula can exactly predict the reduction factor of corroded steel pipes which is affected by random pitting corrosion.

Key words:circular steel pipe;pitting corrosion;corrosion thickness;corrosion position;steel grade;randomness