Compression strength of corroded steel angle members

Effect of corrosion on the buckling of steel angle members – experimental study

“…The codes and standards usually do not give detailed suggestion how the corroded members, connections and structures can be assessed. Eurocode 3 [1] and other major standards such as CAN/CSA, AISC, ASCE recommend to apply average cross-section reduction [2] in the prediction of the resistance. Because of the lacking of detailed instructions it may be complicated to estimate the decrease of the resistance of a corrosion damaged member, especially if the damage is not uniform along the member.…”

“…Beaulieu et al [2] investigated steel angle members corroded by galvanic process. The main studied parameters in this work were the slenderness, the width-to-thickness ratio and the level of corrosion means cross-section reduction.…”

“…(2). The thickness reduction is supposed to be 1, 2, 3 and 3.5 mm on both of the member legs along the length.…”

Behaviour of corroded steel angle compression members – numerical study

“…The knowledge of the behaviour and the resistance of the corroded elements are important to decide whether the elements must be replaced or it is enough to strengthen it. The recent codes of steel structures (Eurocode [1], CAN/CSA, AISC, ASCE) give only minor recommendation [2], how to consider the effect of corrosion in the analyses of the elements. Typically the average cross-section is proposed by the standards, but in general this approximation is not accurate enough due to the diversity of the corrosion.…”

“…The research involved tensile tests, buckling tests, 3-and 4-point-bending tests and finite element analyses on pitting corroded elements. Angle section members -in the subject of the current study -were previously analysed by Beaulieu et al [2]. The specimens were corroded artificially by galvanic process and the tests results were compared to the analytical results calculated according to the proposals of the relevant Canadian and American standards.…”