Fatigue strengthening of riveted girders in a historic railway metallic bridge in Switzerland using pre-stressed un-bonded CFRP laminates

Publikation: Beitrag in Buch/Bericht/Sammelwerk/KonferenzbandAufsatz in KonferenzbandForschungPeer-Review

Autoren

  • E. Ghafoori
  • M. Motavalli
  • A. Herwig
  • A. Nussbaumer
  • G. S. Prinz
  • M. Fontana

Externe Organisationen

  • Eidgenössische Materialprüfungs- und Forschungsanstalt (EMPA)
  • Conzett Bronzini Partner AG
  • Eidgenössische Technische Hochschule Lausanne (ETHL)
  • University of Arkansas
  • ETH Zürich
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Titel des SammelwerksMaintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks
UntertitelProceedings of the 8th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2016
Herausgeber/-innenAndre T. Beck, Dan M. Frangopol, Tulio Nogueira Bittencourt
Seiten522-529
Seitenumfang8
PublikationsstatusVeröffentlicht - 2016
Extern publiziertJa
Veranstaltung8th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2016 - Foz do Iguaçu, Brasilien
Dauer: 26 Juni 201630 Juni 2016

Publikationsreihe

NameMaintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks - Proceedings of the 8th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2016

Abstract

In this paper, the applicability of the constant life diagram (CLD) methodology for fatigue strengthening of metallic members is described. The CLD methodology is a method that uses the combined effect of alternating stress, mean stress and material properties to predict the material life-time under high-cycle fatigue loading. The method could be used most efficiently to improve resistance to crack initiation in ‘safe-life’ members, which is, in fact, a preventive fatigue strengthening approach. The method can be used to increase the fatigue safety margins of un-cracked metallic members. Furthermore, an innovative pre-stressed un-bonded reinforcement (PUR) system has been developed and patented. The advantages of the developed PUR system arc: applicable to unsmooth surfaces (e.g., riveted or corroded), fast on-site installation (i.e., no glue and no surface preparation), no damage on metallic member (no weld, hole or grinding) and adjustable carbon fiber-reinforced polymer (CFRP) pre-stress level. The system can be easily disassembled and removed, if necessary, which makes it suitable for historical bridges as a temporary or permanent retrofit technique. Lastly, this paper presents details about fatigue strengthening of riveted girders in a 120-ycar-old railway (wrought iron) bridge using the PUR system such that the requirements of the CLD approach arc fulfilled.

ASJC Scopus Sachgebiete

Zitieren

Fatigue strengthening of riveted girders in a historic railway metallic bridge in Switzerland using pre-stressed un-bonded CFRP laminates. / Ghafoori, E.; Motavalli, M.; Herwig, A. et al.
Maintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks : Proceedings of the 8th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2016. Hrsg. / Andre T. Beck; Dan M. Frangopol; Tulio Nogueira Bittencourt. 2016. S. 522-529 (Maintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks - Proceedings of the 8th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2016).

Publikation: Beitrag in Buch/Bericht/Sammelwerk/KonferenzbandAufsatz in KonferenzbandForschungPeer-Review

Ghafoori, E, Motavalli, M, Herwig, A, Nussbaumer, A, Prinz, GS & Fontana, M 2016, Fatigue strengthening of riveted girders in a historic railway metallic bridge in Switzerland using pre-stressed un-bonded CFRP laminates. in AT Beck, DM Frangopol & TN Bittencourt (Hrsg.), Maintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks : Proceedings of the 8th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2016. Maintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks - Proceedings of the 8th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2016, S. 522-529, 8th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2016, Foz do Iguaçu, Brasilien, 26 Juni 2016.
Ghafoori, E., Motavalli, M., Herwig, A., Nussbaumer, A., Prinz, G. S., & Fontana, M. (2016). Fatigue strengthening of riveted girders in a historic railway metallic bridge in Switzerland using pre-stressed un-bonded CFRP laminates. In A. T. Beck, D. M. Frangopol, & T. N. Bittencourt (Hrsg.), Maintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks : Proceedings of the 8th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2016 (S. 522-529). (Maintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks - Proceedings of the 8th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2016).
Ghafoori E, Motavalli M, Herwig A, Nussbaumer A, Prinz GS, Fontana M. Fatigue strengthening of riveted girders in a historic railway metallic bridge in Switzerland using pre-stressed un-bonded CFRP laminates. in Beck AT, Frangopol DM, Bittencourt TN, Hrsg., Maintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks : Proceedings of the 8th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2016. 2016. S. 522-529. (Maintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks - Proceedings of the 8th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2016).
Ghafoori, E. ; Motavalli, M. ; Herwig, A. et al. / Fatigue strengthening of riveted girders in a historic railway metallic bridge in Switzerland using pre-stressed un-bonded CFRP laminates. Maintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks : Proceedings of the 8th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2016. Hrsg. / Andre T. Beck ; Dan M. Frangopol ; Tulio Nogueira Bittencourt. 2016. S. 522-529 (Maintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks - Proceedings of the 8th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2016).
Download
@inproceedings{1d8c056a791547c79fd94dd09ebef65d,
title = "Fatigue strengthening of riveted girders in a historic railway metallic bridge in Switzerland using pre-stressed un-bonded CFRP laminates",
abstract = "In this paper, the applicability of the constant life diagram (CLD) methodology for fatigue strengthening of metallic members is described. The CLD methodology is a method that uses the combined effect of alternating stress, mean stress and material properties to predict the material life-time under high-cycle fatigue loading. The method could be used most efficiently to improve resistance to crack initiation in {\textquoteleft}safe-life{\textquoteright} members, which is, in fact, a preventive fatigue strengthening approach. The method can be used to increase the fatigue safety margins of un-cracked metallic members. Furthermore, an innovative pre-stressed un-bonded reinforcement (PUR) system has been developed and patented. The advantages of the developed PUR system arc: applicable to unsmooth surfaces (e.g., riveted or corroded), fast on-site installation (i.e., no glue and no surface preparation), no damage on metallic member (no weld, hole or grinding) and adjustable carbon fiber-reinforced polymer (CFRP) pre-stress level. The system can be easily disassembled and removed, if necessary, which makes it suitable for historical bridges as a temporary or permanent retrofit technique. Lastly, this paper presents details about fatigue strengthening of riveted girders in a 120-ycar-old railway (wrought iron) bridge using the PUR system such that the requirements of the CLD approach arc fulfilled.",
author = "E. Ghafoori and M. Motavalli and A. Herwig and A. Nussbaumer and Prinz, {G. S.} and M. Fontana",
year = "2016",
language = "English",
isbn = "9781138028517",
series = "Maintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks - Proceedings of the 8th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2016",
pages = "522--529",
editor = "Beck, {Andre T.} and Frangopol, {Dan M.} and Bittencourt, {Tulio Nogueira}",
booktitle = "Maintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks",
note = "8th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2016 ; Conference date: 26-06-2016 Through 30-06-2016",

}

Download

TY - GEN

T1 - Fatigue strengthening of riveted girders in a historic railway metallic bridge in Switzerland using pre-stressed un-bonded CFRP laminates

AU - Ghafoori, E.

AU - Motavalli, M.

AU - Herwig, A.

AU - Nussbaumer, A.

AU - Prinz, G. S.

AU - Fontana, M.

PY - 2016

Y1 - 2016

N2 - In this paper, the applicability of the constant life diagram (CLD) methodology for fatigue strengthening of metallic members is described. The CLD methodology is a method that uses the combined effect of alternating stress, mean stress and material properties to predict the material life-time under high-cycle fatigue loading. The method could be used most efficiently to improve resistance to crack initiation in ‘safe-life’ members, which is, in fact, a preventive fatigue strengthening approach. The method can be used to increase the fatigue safety margins of un-cracked metallic members. Furthermore, an innovative pre-stressed un-bonded reinforcement (PUR) system has been developed and patented. The advantages of the developed PUR system arc: applicable to unsmooth surfaces (e.g., riveted or corroded), fast on-site installation (i.e., no glue and no surface preparation), no damage on metallic member (no weld, hole or grinding) and adjustable carbon fiber-reinforced polymer (CFRP) pre-stress level. The system can be easily disassembled and removed, if necessary, which makes it suitable for historical bridges as a temporary or permanent retrofit technique. Lastly, this paper presents details about fatigue strengthening of riveted girders in a 120-ycar-old railway (wrought iron) bridge using the PUR system such that the requirements of the CLD approach arc fulfilled.

AB - In this paper, the applicability of the constant life diagram (CLD) methodology for fatigue strengthening of metallic members is described. The CLD methodology is a method that uses the combined effect of alternating stress, mean stress and material properties to predict the material life-time under high-cycle fatigue loading. The method could be used most efficiently to improve resistance to crack initiation in ‘safe-life’ members, which is, in fact, a preventive fatigue strengthening approach. The method can be used to increase the fatigue safety margins of un-cracked metallic members. Furthermore, an innovative pre-stressed un-bonded reinforcement (PUR) system has been developed and patented. The advantages of the developed PUR system arc: applicable to unsmooth surfaces (e.g., riveted or corroded), fast on-site installation (i.e., no glue and no surface preparation), no damage on metallic member (no weld, hole or grinding) and adjustable carbon fiber-reinforced polymer (CFRP) pre-stress level. The system can be easily disassembled and removed, if necessary, which makes it suitable for historical bridges as a temporary or permanent retrofit technique. Lastly, this paper presents details about fatigue strengthening of riveted girders in a 120-ycar-old railway (wrought iron) bridge using the PUR system such that the requirements of the CLD approach arc fulfilled.

UR - http://www.scopus.com/inward/record.url?scp=85001124970&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:85001124970

SN - 9781138028517

T3 - Maintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks - Proceedings of the 8th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2016

SP - 522

EP - 529

BT - Maintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks

A2 - Beck, Andre T.

A2 - Frangopol, Dan M.

A2 - Bittencourt, Tulio Nogueira

T2 - 8th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2016

Y2 - 26 June 2016 through 30 June 2016

ER -

Von denselben Autoren