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Advances in Materials Science and Engineering
Volume 2016, Article ID 6467589, 12 pages
Research Article

Relationships between Imperfections and Shear Buckling Resistance in Web Plate with Sectional Damage Caused by Corrosion

1Department of Civil Engineering, Gyeongnam National University of Science and Technology, Jinju, Gyeongnam 660-758, Republic of Korea
2Department of Civil Engineering, Kyushu University, Fukuoka 819-0395, Japan
3Structural Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology, Goyang, Gyeonggi 411-712, Republic of Korea
4Department of Civil Engineering, Pusan National University, Pusan 609-735, Republic of Korea

Received 10 May 2016; Accepted 16 June 2016

Academic Editor: Guillermo Rus

Copyright © 2016 Jin-Hee Ahn et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This study deals with the relationship between imperfections and shear buckling resistance of web plates with sectional damage caused by corrosion. To examine the imperfection effect on the shear buckling resistance of a web plate with sectional damage, a series of nonlinear finite element (FE) analyses were carried out for a web plate with sectional damage, which was assumed as local corrosion damage. For considering imperfections of the web plate in the girder, initial out-of-plane deformation was introduced in the FE analysis model. Using the FE analysis results, the changes in the shear buckling resistance of the web plate with sectional damage were quantitatively examined and summarized according to the aspect ratio, boundary conditions, and height of the damaged section of the web plate. The effects of web imperfections on the shear buckling resistance were evaluated to be little compared to that of the web plate without sectional damage. The shear buckling resistance was shown to significantly change in the high-aspect-ratio web plate. A simple evaluation equation for the shear buckling resistance of a web plate with sectional damage was modified for use in the practical maintenance of a web plate in corrosive environments.