Repair method and residual bearing strength evaluation of a locally corroded plate girder at support

Ahn, Jin Hee; Kainuma, Shigenobu; Fukunaga, Yasuo; Imamura, Takehiro

doi:10.1016/j.engfailanal.2013.06.015

Cited by 25 publications

(6 citation statements)

References 8 publications

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“…As shown in the figure, the test results are similar to (2) and (3) for relatively little sectional damage of the web plate. For shear loading tests, sectional damage was exactly calculated; thus, the shear buckling strengths were very similar to the values calculated using (2) and (3). However, it is difficult to calculate exact sectional damage caused by corrosion in the field.…”

Section: Example For Calculation Of Shear Buckling Resistance Of a Wementioning

confidence: 64%

“…Thus, research related to corrosion problems, focused on end girders, has been conducted to determine the residual strength and behaviors of corroded end girders to improve their strengthening methods and maintenance. For the end girder part, the lower region of the web panel, the stiffener on the bearing, and the lower flange on the sole plate have been considered to be the regions vulnerable to corrosion due to their atmospheric corrosion environment, which consists of high humidity caused by poor air circulation, sediments, and rainwater (antifreeze) [1][2][3][4][5]. Corroded lower flanges in end girders have a relatively smaller effect on the flexible resistance of a girder due to their structural behaviors under applied moment conditions.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the lower region of a web panel and a stiffener on a bearing are the main components that should be examined for residual strength or local structural behaviors when conducting research on corrosion problems focused on end girders. A lot of research on the structural behaviors of web panels with lower regional sectional damage has been carried out to examine the shear buckling resistance and shear buckling behaviors [1][2][3][4][5][6][7][8][9][10][11][12]. Many researches were conducted in Japan, where there are severe corrosion environments and many old structures [2,4,10,11].…”

Section: Introductionmentioning

confidence: 99%

“…A lot of research on the structural behaviors of web panels with lower regional sectional damage has been carried out to examine the shear buckling resistance and shear buckling behaviors [1][2][3][4][5][6][7][8][9][10][11][12]. Many researches were conducted in Japan, where there are severe corrosion environments and many old structures [2,4,10,11]. The research mainly dealt with 2 Advances in Materials Science and Engineering the shear buckling resistance and behaviors of web panels using experimental and numerical methods [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

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

Ahn

Kainuma²,

Lee

et al. 2016

Advances in Materials Science and Engineering

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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.

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Section: Example For Calculation Of Shear Buckling Resistance Of a Wementioning

confidence: 64%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

Ahn

Kainuma²,

Lee

et al. 2016

Advances in Materials Science and Engineering

Self Cite

View full text Add to dashboard Cite

show abstract

“…Extrapolating the degradation trend through the design life of the structure would help the bridge owners to estimate remaining service life of the bridge system. Given the condition state of the in-service bridges nationwide along with the shrinking budgets of the transportation agencies to maintain and repair all the deficient structures, the proposed framework has the potential to complement the recent efforts in developing appropriate repair techniques (Ahn et al 2013c, Fam et al 2009, Narmashiri et al 2012 to increase the functionality and service lives of deteriorated in-service structures.…”

Section: Discussionmentioning

confidence: 99%

Performance Evaluation of Damage-Integrated Composite Steel Girder Highway Bridges

Gheitasi

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AcknowledgementFirst and foremost, I would like to express my most sincere thanks and appreciation to Dr. Devin K. Harris for his years of advice on this dissertation and his continuous support during my time at Michigan Tech. and University of Virginia. More than all the scientific knowledge and experience with regards to my research, you have helped me tremendously with the career pursuit and at the same time allowed me to flourish on my own. All the classroom experiences I have gained during these four years would have not been possible without your trust and help. I will be forever grateful for your guidance and wisdom, which I believe will continue to prove invaluable to me throughout my future career.My dissertation committee, Dr. Theresa M. Ahlborn, Dr. Thomas T. Baber, Dr. Osman E.Ozbulut, and Dr. John R. Scully, your guidance, assistant, and time are much appreciated. Your experience and insight have given me the opportunity to visualize concepts from different perspectives which I believe helped me significantly to improve the research work done.I would also like to express my appreciation to my research sponsor; Mid-Atlantic Universities Transportation Centers (MAUTC) for providing support and interest for this project. I am also thankful to the Department of Civil and Environmental Engineering at theUniversity of Virginia for their financial support that enabled me to attend several national conferences and annual meetings during my PhD, and for the unique opportunity to teach my own class on "Bridge Engineering and Design". I would also like to thank Dr. Brown, Dr. Chase, Dr. Kassner for providing structural details and plans of the selected in-service structures within the Commonwealth of Virginia; and Mr.Prasad Nallapaneni from Virginia Department of Transportation (VDOT) for his help on providing details on the selected damage scenarios. AbstractThe safety and condition of transportation infrastructure has been at the forefront of national debates in recent times due to the catastrophic bridge failures occurred in the United States, but the issue has been a longstanding challenge for transportation agencies for many years as resources continue to diminish. The performance of this infrastructure has a direct influence on the lives of most of citizens in developed regions by providing a critical lifeline between communities and the transportation of goods and services, and as a critical component of the transportation network, bridges have received a lot of attention regarding condition assessment and maintenance practices. To date, several inspection methods and monitoring techniques have been developed and used by the bridge owners to monitor the in-service behavior and detect different sourced of damage and deterioration in bridge structures. Despite successful implementation of these methods, what is still lacking is a fundamental understanding of the system behavior in the presence of deteriorating conditions that can be used to estimate the remaining service life of the structure and facilit...

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Behavior of Defective Curved Steel Beams Strengthened by a CFRP Composite

Keykha

2019

Mech Compos Mater

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Repair method and residual bearing strength evaluation of a locally corroded plate girder at support

Cited by 25 publications

References 8 publications

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

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

Performance Evaluation of Damage-Integrated Composite Steel Girder Highway Bridges

Behavior of Defective Curved Steel Beams Strengthened by a CFRP Composite

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