Fatigue assessment of deteriorated steel bridge members considering corrosion

Y. C. Park; L. S. An; H. K. Kim

Fatigue assessment of deteriorated steel bridge members considering corrosion

Y. C. Park, L. S. An, H. K. Kim

Seoul National University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Fatigue crack and corrosion are two significant factors which could affect fatigue performance of steel bridge members. In this study, a reliability based assessment procedure for determining remaining fatigue life is proposed. Both fatigue crack propagation and progress of corrosion are simultaneously considered for the assessment. Three scenarios simulating progress of steel bridge deterioration are established and fatigue assessment was performed accordingly. As corrosion progresses, stress concentration effect around the corroded area increases and may cause fatigue crack initiation. By utilizing stress-strain approach and linear elastic fracture mechanics, pit depth threshold which can be transformed as fatigue crack is determined. To develop relation between pit depth threshold and fatigue crack initiation, an equation estimating the stress concentration factor for corrosion pit is formulated by parametric study based on finite element analysis Proposed fatigue assessment method could establish reliability based deterioration levels, which may lead to reasonable and efficient maintenance strategy.

Original language	English
Title of host publication	Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018
Editors	Nigel Powers, Dan M. Frangopol, Riadh Al-Mahaidi, Colin Caprani
Publisher	CRC Press/Balkema
Pages	609-613
Number of pages	5
ISBN (Print)	9781138730458
State	Published - 2018
Externally published	Yes
Event	9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018 - Melbourne, Australia Duration: 9 Jul 2018 → 13 Jul 2018

Publication series

Name	Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018

Conference

Conference	9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018
Country/Territory	Australia
City	Melbourne
Period	9/07/18 → 13/07/18

Bibliographical note

Publisher Copyright:
© 2018 Taylor & Francis Group, London, UK.

Cite this

Park, Y. C., An, L. S., & Kim, H. K. (2018). Fatigue assessment of deteriorated steel bridge members considering corrosion. In N. Powers, D. M. Frangopol, R. Al-Mahaidi, & C. Caprani (Eds.), Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018 (pp. 609-613). (Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018). CRC Press/Balkema.

Park, Y. C. ; An, L. S. ; Kim, H. K. / Fatigue assessment of deteriorated steel bridge members considering corrosion. Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018. editor / Nigel Powers ; Dan M. Frangopol ; Riadh Al-Mahaidi ; Colin Caprani. CRC Press/Balkema, 2018. pp. 609-613 (Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018).

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title = "Fatigue assessment of deteriorated steel bridge members considering corrosion",

abstract = "Fatigue crack and corrosion are two significant factors which could affect fatigue performance of steel bridge members. In this study, a reliability based assessment procedure for determining remaining fatigue life is proposed. Both fatigue crack propagation and progress of corrosion are simultaneously considered for the assessment. Three scenarios simulating progress of steel bridge deterioration are established and fatigue assessment was performed accordingly. As corrosion progresses, stress concentration effect around the corroded area increases and may cause fatigue crack initiation. By utilizing stress-strain approach and linear elastic fracture mechanics, pit depth threshold which can be transformed as fatigue crack is determined. To develop relation between pit depth threshold and fatigue crack initiation, an equation estimating the stress concentration factor for corrosion pit is formulated by parametric study based on finite element analysis Proposed fatigue assessment method could establish reliability based deterioration levels, which may lead to reasonable and efficient maintenance strategy.",

author = "Park, {Y. C.} and An, {L. S.} and Kim, {H. K.}",

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Park, YC, An, LS & Kim, HK 2018, Fatigue assessment of deteriorated steel bridge members considering corrosion. in N Powers, DM Frangopol, R Al-Mahaidi & C Caprani (eds), Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018. Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018, CRC Press/Balkema, pp. 609-613, 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018, Melbourne, Australia, 9/07/18.

Fatigue assessment of deteriorated steel bridge members considering corrosion. / Park, Y. C.; An, L. S.; Kim, H. K.
Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018. ed. / Nigel Powers; Dan M. Frangopol; Riadh Al-Mahaidi; Colin Caprani. CRC Press/Balkema, 2018. p. 609-613 (Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - An, L. S.

AU - Kim, H. K.

PY - 2018

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N2 - Fatigue crack and corrosion are two significant factors which could affect fatigue performance of steel bridge members. In this study, a reliability based assessment procedure for determining remaining fatigue life is proposed. Both fatigue crack propagation and progress of corrosion are simultaneously considered for the assessment. Three scenarios simulating progress of steel bridge deterioration are established and fatigue assessment was performed accordingly. As corrosion progresses, stress concentration effect around the corroded area increases and may cause fatigue crack initiation. By utilizing stress-strain approach and linear elastic fracture mechanics, pit depth threshold which can be transformed as fatigue crack is determined. To develop relation between pit depth threshold and fatigue crack initiation, an equation estimating the stress concentration factor for corrosion pit is formulated by parametric study based on finite element analysis Proposed fatigue assessment method could establish reliability based deterioration levels, which may lead to reasonable and efficient maintenance strategy.

AB - Fatigue crack and corrosion are two significant factors which could affect fatigue performance of steel bridge members. In this study, a reliability based assessment procedure for determining remaining fatigue life is proposed. Both fatigue crack propagation and progress of corrosion are simultaneously considered for the assessment. Three scenarios simulating progress of steel bridge deterioration are established and fatigue assessment was performed accordingly. As corrosion progresses, stress concentration effect around the corroded area increases and may cause fatigue crack initiation. By utilizing stress-strain approach and linear elastic fracture mechanics, pit depth threshold which can be transformed as fatigue crack is determined. To develop relation between pit depth threshold and fatigue crack initiation, an equation estimating the stress concentration factor for corrosion pit is formulated by parametric study based on finite element analysis Proposed fatigue assessment method could establish reliability based deterioration levels, which may lead to reasonable and efficient maintenance strategy.

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T3 - Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018

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EP - 613

BT - Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018

A2 - Powers, Nigel

A2 - Frangopol, Dan M.

A2 - Al-Mahaidi, Riadh

A2 - Caprani, Colin

PB - CRC Press/Balkema

T2 - 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018

Y2 - 9 July 2018 through 13 July 2018

ER -

Park YC, An LS, Kim HK. Fatigue assessment of deteriorated steel bridge members considering corrosion. In Powers N, Frangopol DM, Al-Mahaidi R, Caprani C, editors, Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018. CRC Press/Balkema. 2018. p. 609-613. (Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018).

Fatigue assessment of deteriorated steel bridge members considering corrosion

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Bibliographical note

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