Preprint Article Version 1 This version is not peer-reviewed

Residual Compressive Strength of Short Tubular Steel Columns with Local Corrosion Damage

Version 1 : Received: 15 January 2020 / Approved: 16 January 2020 / Online: 16 January 2020 (11:17:19 CET)

A peer-reviewed article of this Preprint also exists.

Toledo, K.K.; Kim, H.-S.; Jeong, Y.-S.; Kim, I.-T. Residual Compressive Strength of Short Tubular Steel Columns with Artificially Fabricated Local Corrosion Damage. Materials 2020, 13, 813. Toledo, K.K.; Kim, H.-S.; Jeong, Y.-S.; Kim, I.-T. Residual Compressive Strength of Short Tubular Steel Columns with Artificially Fabricated Local Corrosion Damage. Materials 2020, 13, 813.

Journal reference: Materials 2020, 13, 813
DOI: 10.3390/ma13040813

Abstract

Corrosion is considered as one of the main factors in the structural performance deterioration of steel members. In this study, experimental and numerical methods were used to assess the reduction in compressive strength of short tubular steel columns with local corrosion damage. The corrosion damage was varied with different depths (0, 1.5, 2, 3, 4, 4.5, and 6 mm), height (0, 20, 40, 60, 80, 100, 120, 140, 160, and 180 mm), circumference (0, 90, 180, 270, and 360°), and location along the column. A parametric numerical study was performed to establish a correlation between the residual compressive strength and the severity of corrosion damage. The results showed that as the corrosion depth, height and circumference increased, the compressive strength decreased linearly. As for the corrosion height, the residual compressive strength became constant after decreasing linearly when the corrosion height was greater than the half-wavelength of buckling of the short columns. An equation is presented to evaluate the residual compressive strength of short columns with local corrosion wherein the volume of the corrosion damage was used as a reduction factor in calculating the compressive strength. The percentage error using the presented equation was found to be within 11.4%.

Subject Areas

residual compressive strength; steel; finite element analysis; short tubular steel column; local corrosion

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