Enhanced Fatigue Life of Old Metallic Bridges - Application of Preloaded Injection Bolts

Bruno A.S. Pedrosa; Carlos Rebelo; José  A. Fonseca de Oliveira Correia; Milan Veljkovic; Luís A. P. S.  Silva

doi:10.1007/978-3-030-76465-4_18

Enhanced Fatigue Life of Old Metallic Bridges - Application of Preloaded Injection Bolts

Bruno A.S. Pedrosa, Carlos Rebelo, José A. Fonseca de Oliveira Correia, Milan Veljkovic, Luís A. P. S. Silva

Steel & Composite Structures

Research output: Chapter in Book/Conference proceedings/Edited volume › Chapter › Scientific › peer-review

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Abstract

There is a significant number of old metallic bridges with high levels of structural degradation due to their long service period. Fatigue problems are especially important in these structures since the majority of them were not designed taking into account this phenomenon. Several investigations showed that riveted joints are critical details since several fatigue cracks were found in these joints. In this sense, strengthening methodologies need to be studied. The strategy that has been considered a good solution is the implementation of injection bolts to replace faulty rivets. The structural performance of injection bolts has been demonstrated essentially under quasi-static conditions presenting good results. This paper intends to contribute to the scientific knowledge regarding the fatigue behavior of connections with preloaded injection bolts in the context of a bridge strengthening scenario. An experimental investigation was conducted to compare the fatigue performance of connections with preloaded injection bolts and preloaded standard bolts. Single and double shear connections were tested. New S–N design curves were proposed based on a statistical analysis of the results and compared with the S–N curves proposed in EC3-1–9. The obtained results showed that the use of injection bolts lead to lower scatter and improvement of fatigue life. It was verified that the Eurocode 3 is not able to represent the fatigue strength of connections whose performance is influenced by old metallic materials. Additionally, the fatigue behavior of these connections was assessed by numerical analysis. The relevance of the fatigue crack initiation was evident.

Original language	English
Title of host publication	Proceedings of the 3rd RILEM Spring Convention and Conference (RSCC 2020)
Subtitle of host publication	Volume 3: Service Life Extension of Existing Structures
Editors	J. Sena-Cruz, L. Correia, M. Azenha
Place of Publication	Cham
Publisher	Springer
Pages	197-208
Number of pages	12
ISBN (Electronic)	978-3-030-76465-4
ISBN (Print)	978-3-030-76464-7
DOIs	https://doi.org/10.1007/978-3-030-76465-4_18
Publication status	Published - 2022
Event	3rd RILEM Spring Convention and Conference on Ambitioning a sustainable future for built environment: comprehensive strategies for unprecedented challenges - Guimaraes, Portugal Duration: 10 Mar 2020 → 14 Mar 2020 https://www.rscc2020.civil.uminho.pt/

Publication series

Name	RILEM Bookseries
Volume	34
ISSN (Print)	2211-0844
ISSN (Electronic)	2211-0852

Conference

Conference	3rd RILEM Spring Convention and Conference on Ambitioning a sustainable future for built environment
Country/Territory	Portugal
City	Guimaraes
Period	10/03/20 → 14/03/20
Internet address	https://www.rscc2020.civil.uminho.pt/

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

Fatigue
Injection bolts
Old metallic bridges
Strengthening

Access to Document

10.1007/978-3-030-76465-4_18

Enhanced Fatigue Life of Old Metallic Bridges - Application of Preloaded Injection BoltsFinal published version, 13.9 MB

https://link.springer.com/chapter/10.1007/978-3-030-76465-4_18

Cite this

Pedrosa, B. A. S., Rebelo, C., Fonseca de Oliveira Correia, J. A., Veljkovic, M., & Silva, L. A. P. S. (2022). Enhanced Fatigue Life of Old Metallic Bridges - Application of Preloaded Injection Bolts. In J. Sena-Cruz, L. Correia, & M. Azenha (Eds.), Proceedings of the 3rd RILEM Spring Convention and Conference (RSCC 2020): Volume 3: Service Life Extension of Existing Structures (pp. 197-208). (RILEM Bookseries; Vol. 34). Springer. https://doi.org/10.1007/978-3-030-76465-4_18

Pedrosa, Bruno A.S. ; Rebelo, Carlos ; Fonseca de Oliveira Correia, José A. et al. / Enhanced Fatigue Life of Old Metallic Bridges - Application of Preloaded Injection Bolts. Proceedings of the 3rd RILEM Spring Convention and Conference (RSCC 2020): Volume 3: Service Life Extension of Existing Structures. editor / J. Sena-Cruz ; L. Correia ; M. Azenha. Cham : Springer, 2022. pp. 197-208 (RILEM Bookseries).

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abstract = "There is a significant number of old metallic bridges with high levels of structural degradation due to their long service period. Fatigue problems are especially important in these structures since the majority of them were not designed taking into account this phenomenon. Several investigations showed that riveted joints are critical details since several fatigue cracks were found in these joints. In this sense, strengthening methodologies need to be studied. The strategy that has been considered a good solution is the implementation of injection bolts to replace faulty rivets. The structural performance of injection bolts has been demonstrated essentially under quasi-static conditions presenting good results. This paper intends to contribute to the scientific knowledge regarding the fatigue behavior of connections with preloaded injection bolts in the context of a bridge strengthening scenario. An experimental investigation was conducted to compare the fatigue performance of connections with preloaded injection bolts and preloaded standard bolts. Single and double shear connections were tested. New S–N design curves were proposed based on a statistical analysis of the results and compared with the S–N curves proposed in EC3-1–9. The obtained results showed that the use of injection bolts lead to lower scatter and improvement of fatigue life. It was verified that the Eurocode 3 is not able to represent the fatigue strength of connections whose performance is influenced by old metallic materials. Additionally, the fatigue behavior of these connections was assessed by numerical analysis. The relevance of the fatigue crack initiation was evident.",

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Pedrosa, BAS, Rebelo, C, Fonseca de Oliveira Correia, JA , Veljkovic, M & Silva, LAPS 2022, Enhanced Fatigue Life of Old Metallic Bridges - Application of Preloaded Injection Bolts. in J Sena-Cruz, L Correia & M Azenha (eds), Proceedings of the 3rd RILEM Spring Convention and Conference (RSCC 2020): Volume 3: Service Life Extension of Existing Structures. RILEM Bookseries, vol. 34, Springer, Cham, pp. 197-208, 3rd RILEM Spring Convention and Conference on Ambitioning a sustainable future for built environment, Guimaraes, Portugal, 10/03/20. https://doi.org/10.1007/978-3-030-76465-4_18

Enhanced Fatigue Life of Old Metallic Bridges - Application of Preloaded Injection Bolts. / Pedrosa, Bruno A.S.; Rebelo, Carlos; Fonseca de Oliveira Correia, José A. et al.
Proceedings of the 3rd RILEM Spring Convention and Conference (RSCC 2020): Volume 3: Service Life Extension of Existing Structures. ed. / J. Sena-Cruz; L. Correia; M. Azenha. Cham: Springer, 2022. p. 197-208 (RILEM Bookseries; Vol. 34).

Research output: Chapter in Book/Conference proceedings/Edited volume › Chapter › Scientific › peer-review

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T1 - Enhanced Fatigue Life of Old Metallic Bridges - Application of Preloaded Injection Bolts

AU - Pedrosa, Bruno A.S.

AU - Rebelo, Carlos

AU - Fonseca de Oliveira Correia, José A.

AU - Veljkovic, Milan

AU - Silva, Luís A. P. S.

N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2022

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N2 - There is a significant number of old metallic bridges with high levels of structural degradation due to their long service period. Fatigue problems are especially important in these structures since the majority of them were not designed taking into account this phenomenon. Several investigations showed that riveted joints are critical details since several fatigue cracks were found in these joints. In this sense, strengthening methodologies need to be studied. The strategy that has been considered a good solution is the implementation of injection bolts to replace faulty rivets. The structural performance of injection bolts has been demonstrated essentially under quasi-static conditions presenting good results. This paper intends to contribute to the scientific knowledge regarding the fatigue behavior of connections with preloaded injection bolts in the context of a bridge strengthening scenario. An experimental investigation was conducted to compare the fatigue performance of connections with preloaded injection bolts and preloaded standard bolts. Single and double shear connections were tested. New S–N design curves were proposed based on a statistical analysis of the results and compared with the S–N curves proposed in EC3-1–9. The obtained results showed that the use of injection bolts lead to lower scatter and improvement of fatigue life. It was verified that the Eurocode 3 is not able to represent the fatigue strength of connections whose performance is influenced by old metallic materials. Additionally, the fatigue behavior of these connections was assessed by numerical analysis. The relevance of the fatigue crack initiation was evident.

AB - There is a significant number of old metallic bridges with high levels of structural degradation due to their long service period. Fatigue problems are especially important in these structures since the majority of them were not designed taking into account this phenomenon. Several investigations showed that riveted joints are critical details since several fatigue cracks were found in these joints. In this sense, strengthening methodologies need to be studied. The strategy that has been considered a good solution is the implementation of injection bolts to replace faulty rivets. The structural performance of injection bolts has been demonstrated essentially under quasi-static conditions presenting good results. This paper intends to contribute to the scientific knowledge regarding the fatigue behavior of connections with preloaded injection bolts in the context of a bridge strengthening scenario. An experimental investigation was conducted to compare the fatigue performance of connections with preloaded injection bolts and preloaded standard bolts. Single and double shear connections were tested. New S–N design curves were proposed based on a statistical analysis of the results and compared with the S–N curves proposed in EC3-1–9. The obtained results showed that the use of injection bolts lead to lower scatter and improvement of fatigue life. It was verified that the Eurocode 3 is not able to represent the fatigue strength of connections whose performance is influenced by old metallic materials. Additionally, the fatigue behavior of these connections was assessed by numerical analysis. The relevance of the fatigue crack initiation was evident.

KW - Fatigue

KW - Injection bolts

KW - Old metallic bridges

KW - Strengthening

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M3 - Chapter

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ER -

Pedrosa BAS, Rebelo C, Fonseca de Oliveira Correia JA , Veljkovic M, Silva LAPS. Enhanced Fatigue Life of Old Metallic Bridges - Application of Preloaded Injection Bolts. In Sena-Cruz J, Correia L, Azenha M, editors, Proceedings of the 3rd RILEM Spring Convention and Conference (RSCC 2020): Volume 3: Service Life Extension of Existing Structures. Cham: Springer. 2022. p. 197-208. (RILEM Bookseries). doi: 10.1007/978-3-030-76465-4_18

Enhanced Fatigue Life of Old Metallic Bridges - Application of Preloaded Injection Bolts

Abstract

Publication series

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Bibliographical note

Keywords

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