Abstract
Local corrosion damage of steel structures can occur due to damage to the paint-coated surface of structures. Such damage can affect the structural behavior and performance of steel structures. Compressive loading tests were, thus, carried out in this study to examine the effect of local corrosion damage on the structural behavior and strength of tubular members. Artificial cross-sectional damage on the surface of the tubular members was introduced to reflect the actual corroded damage under exposure to a corrosion environment. The compressive failure modes and compressive strengths of the tubular members were compared according to the localized cross-sectional damage. The compressive loading test results showed that the compressive strengths were affected by the damaged width within a certain range. In addition, finite element analysis (FEA) was conducted with various parameters to determine the effects of the damage on the failure mode and compressive strength of the stub column. From the FEA results, the compressive strength was decreased proportionally with the equivalent cross-sectional area ratio and damaged volume ratio.
Highlights
Circular steel members have been used as major structural components in various structural systems
This study examined the structural behavior and strength of stub tubular steel members with
This study examined the structural behavior and strength of stub tubular steel members with localized cross-sectional cross-sectionaldamage
Summary
Circular steel members have been used as major structural components in various structural systems. To consider the irregular cross-sectional damaged surfaces due to corrosion, compressive loading tests have been conducted on inclined and vertical circular steel members with both uneven and even cross-sectional damage In these tests, damage was artificially induced by a mechanical process and hand drills to compare the differences between the compressive resistances and cross-sectional damage condition caused by corrosion [19]. Damage was artificially induced by a mechanical process and hand drills to compare the differences between the compressive resistances and cross-sectional damage condition caused by corrosion [19] In these previous studies, half- and fully-damaged cases of cross-sectional corrosion of the outer circumference of circular steel members [19] were considered. The effect of the localized cross-sectional damage condition on the compressive resistance of the circular tubular members was quantitatively evaluated
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