Effect of Pitting Corrosion on the Load-carrying Capacity of Steel-box Sections subjected to Axial Compression

Due to the increasing numbers and expenses of steel structures in different countries, the study of their corrosion during the time that causes some problems in their members’ load-carrying ability, had been of fundamental importance. Considering the slight weight of eroded members and the depth of pits, the existence of pitting corrosion is a fundamental issue in the buildings. Firstly, in this study, the load-carrying capacity of thin-walled box-sections (four specimens with different dimensions) is examined. Then, assuming width-thickness ratio and section side ratio of each specimen to be variable, the effect of each parameter on the ultimate load-carrying capacity of system is observed. all models using modeling software ABAQUS. Finally, the aim of this paper is to examine the effect of corrosion on the ultimate load-carrying capacity of the above box-sections.

کلیدواژه ها:

Steel-box section ، Pitting corrosion ، load-carrying capacity ، Ultimate strength