Hanger replacement effect: Experimental and numerical investigation on the bosphorus bridge

S. Bas; N. M. Apaydin; A. Ilki; N. Catbas

Hanger replacement effect: Experimental and numerical investigation on the bosphorus bridge

S. Bas, N. M. Apaydin, A. Ilki, N. Catbas

Department of Civil Engineering

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

Abstract

As from its construction, the Bosphorus Bridge underwent various retrofitting and repairmen studies. The most critical one is the replacement of the inclined hanger ropes with vertical hanger ropes. The project is recently completed; however, the response of the bridge with vertical hanger is not estimated due to the lack of Structural Health Monitoring data. In this study, the effects of the vertical hanger arrangement on the bridge’s response are aimed to be determined by making experimental data and numerical analyses. For this objective, finite element model of the bridge with inclined and vertical hangers are developed. Considering the modal analysis results, comparative study is conducted to identify the hanger replacement effects on the bridge. The outcomes reveal that the frequencies of the vertical deck modes of the bridge are changed as 10-25% in terms of frequency. Thus, stiffness of the bridge in vertical direction is obtained to increase.

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	1139-1144
Number of pages	6
ISBN (Print)	9781138730458
Publication status	Published - 2018
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.

Cite this

Bas, S., Apaydin, N. M., Ilki, A., & Catbas, N. (2018). Hanger replacement effect: Experimental and numerical investigation on the bosphorus bridge. 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. 1139-1144). (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.

Bas, S. ; Apaydin, N. M. ; Ilki, A. et al. / Hanger replacement effect : Experimental and numerical investigation on the bosphorus bridge. 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. 1139-1144 (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 = "Hanger replacement effect: Experimental and numerical investigation on the bosphorus bridge",

abstract = "As from its construction, the Bosphorus Bridge underwent various retrofitting and repairmen studies. The most critical one is the replacement of the inclined hanger ropes with vertical hanger ropes. The project is recently completed; however, the response of the bridge with vertical hanger is not estimated due to the lack of Structural Health Monitoring data. In this study, the effects of the vertical hanger arrangement on the bridge{\textquoteright}s response are aimed to be determined by making experimental data and numerical analyses. For this objective, finite element model of the bridge with inclined and vertical hangers are developed. Considering the modal analysis results, comparative study is conducted to identify the hanger replacement effects on the bridge. The outcomes reveal that the frequencies of the vertical deck modes of the bridge are changed as 10-25% in terms of frequency. Thus, stiffness of the bridge in vertical direction is obtained to increase.",

author = "S. Bas and Apaydin, {N. M.} and A. Ilki and N. Catbas",

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year = "2018",

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series = "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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Bas, S, Apaydin, NM, Ilki, A & Catbas, N 2018, Hanger replacement effect: Experimental and numerical investigation on the bosphorus bridge. 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. 1139-1144, 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018, Melbourne, Australia, 9/07/18.

Hanger replacement effect: Experimental and numerical investigation on the bosphorus bridge. / Bas, S.; Apaydin, N. M.; Ilki, A. et al.
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. 1139-1144 (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

TY - GEN

T1 - Hanger replacement effect

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

AU - Bas, S.

AU - Apaydin, N. M.

AU - Ilki, A.

AU - Catbas, N.

PY - 2018

Y1 - 2018

N2 - As from its construction, the Bosphorus Bridge underwent various retrofitting and repairmen studies. The most critical one is the replacement of the inclined hanger ropes with vertical hanger ropes. The project is recently completed; however, the response of the bridge with vertical hanger is not estimated due to the lack of Structural Health Monitoring data. In this study, the effects of the vertical hanger arrangement on the bridge’s response are aimed to be determined by making experimental data and numerical analyses. For this objective, finite element model of the bridge with inclined and vertical hangers are developed. Considering the modal analysis results, comparative study is conducted to identify the hanger replacement effects on the bridge. The outcomes reveal that the frequencies of the vertical deck modes of the bridge are changed as 10-25% in terms of frequency. Thus, stiffness of the bridge in vertical direction is obtained to increase.

AB - As from its construction, the Bosphorus Bridge underwent various retrofitting and repairmen studies. The most critical one is the replacement of the inclined hanger ropes with vertical hanger ropes. The project is recently completed; however, the response of the bridge with vertical hanger is not estimated due to the lack of Structural Health Monitoring data. In this study, the effects of the vertical hanger arrangement on the bridge’s response are aimed to be determined by making experimental data and numerical analyses. For this objective, finite element model of the bridge with inclined and vertical hangers are developed. Considering the modal analysis results, comparative study is conducted to identify the hanger replacement effects on the bridge. The outcomes reveal that the frequencies of the vertical deck modes of the bridge are changed as 10-25% in terms of frequency. Thus, stiffness of the bridge in vertical direction is obtained to increase.

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M3 - Conference contribution

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SN - 9781138730458

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

SP - 1139

EP - 1144

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

Y2 - 9 July 2018 through 13 July 2018

ER -

Bas S, Apaydin NM, Ilki A, Catbas N. Hanger replacement effect: Experimental and numerical investigation on the bosphorus bridge. 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. 1139-1144. (Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018).

Hanger replacement effect: Experimental and numerical investigation on the bosphorus bridge

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