Details
| Original language | English |
|---|---|
| Title of host publication | 10th International Conference on FRP Composites in Civil Engineering - Proceedings of CICE 2020/2021 |
| Editors | Alper Ilki, Medine Ispir, Pinar Inci |
| Publisher | Springer Science and Business Media Deutschland GmbH |
| Pages | 2311-2321 |
| Number of pages | 11 |
| ISBN (print) | 9783030881658 |
| Publication status | Published - 27 Nov 2021 |
| Externally published | Yes |
| Event | 10th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2021 - Virtual, Online Duration: 8 Dec 2021 → 10 Dec 2021 |
Publication series
| Name | Lecture Notes in Civil Engineering |
|---|---|
| Volume | 198 LNCE |
| ISSN (Print) | 2366-2557 |
| ISSN (electronic) | 2366-2565 |
Abstract
This paper presents an application of iron-based shape memory alloy (Fe-SMA) for the strengthening of metallic girder of a historical roadway bridge in Petrov nad Desnou, Czech Republic. This is, to the best of author´s knowledge, the first application of Fe-SMA for strengthening of bridge structure worldwide, as the previous applications were mainly on building structures. The shape memory effect (SME) of Fe-SMA was used for prestressing of the steel girder. The SME is material property of deformed Fe-SMA to return to its original shape upon heating and subsequent cooling. A mechanical anchorage system was developed to apply pre-strained Fe-SMA plates to the steel girders of the 113 years old bridge, which is daily subjected to passengers and heavy vehicles. The SME in the Fe-SMA was then activated by heating to approximately 260 ℃ using heating ceramic pads. The test results showed that achieved recovery stress of the Fe-SMA strips led to a maximum compressive stress of −33 MPa in the lower flange of the steel girder. This compressive stress could significantly increase the yield and fatigue strength of the strengthened girder. Before and after the strengthening, the bridge was loaded with a 45.34-ton crane. Prior to installation of the strengthening to the bridge a static test was performed in the laboratory to examine the efficiency of the proposed strengthening method.
Keywords
- Historical steel bridge, Shape memory alloy, Shape memory effect, Strengthening
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
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10th International Conference on FRP Composites in Civil Engineering - Proceedings of CICE 2020/2021. ed. / Alper Ilki; Medine Ispir; Pinar Inci. Springer Science and Business Media Deutschland GmbH, 2021. p. 2311-2321 (Lecture Notes in Civil Engineering; Vol. 198 LNCE).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Iron-Based Shape Memory Alloy Strengthening of a 113-Years Steel Bridge
AU - Vůjtěch, Jakub
AU - Ryjáček, Pavel
AU - Matos, Jose Campos
AU - Ghafoori, Elyas
N1 - Funding Information: for funding research work within the framework of the Program of Applied Research and Development of National and Cultural Identity (NAKI-II) project: Methods for achieving sustainability of industrial heritage steel bridges, ID.: DG18P02OVV033. Funding Information: The authors are grateful to the Ministry of Culture of the Czech Republic for funding research work within the framework of the Program of Applied Research and Development of National and Cultural Identity (NAKI-II) project: Methods for achieving sustainability of industrial heritage steel bridges, ID.: DG18P02OVV033. The authors would like to thank the contributions of re-fer AG Company in providing the materials for this study. Publisher Copyright: © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.
PY - 2021/11/27
Y1 - 2021/11/27
N2 - This paper presents an application of iron-based shape memory alloy (Fe-SMA) for the strengthening of metallic girder of a historical roadway bridge in Petrov nad Desnou, Czech Republic. This is, to the best of author´s knowledge, the first application of Fe-SMA for strengthening of bridge structure worldwide, as the previous applications were mainly on building structures. The shape memory effect (SME) of Fe-SMA was used for prestressing of the steel girder. The SME is material property of deformed Fe-SMA to return to its original shape upon heating and subsequent cooling. A mechanical anchorage system was developed to apply pre-strained Fe-SMA plates to the steel girders of the 113 years old bridge, which is daily subjected to passengers and heavy vehicles. The SME in the Fe-SMA was then activated by heating to approximately 260 ℃ using heating ceramic pads. The test results showed that achieved recovery stress of the Fe-SMA strips led to a maximum compressive stress of −33 MPa in the lower flange of the steel girder. This compressive stress could significantly increase the yield and fatigue strength of the strengthened girder. Before and after the strengthening, the bridge was loaded with a 45.34-ton crane. Prior to installation of the strengthening to the bridge a static test was performed in the laboratory to examine the efficiency of the proposed strengthening method.
AB - This paper presents an application of iron-based shape memory alloy (Fe-SMA) for the strengthening of metallic girder of a historical roadway bridge in Petrov nad Desnou, Czech Republic. This is, to the best of author´s knowledge, the first application of Fe-SMA for strengthening of bridge structure worldwide, as the previous applications were mainly on building structures. The shape memory effect (SME) of Fe-SMA was used for prestressing of the steel girder. The SME is material property of deformed Fe-SMA to return to its original shape upon heating and subsequent cooling. A mechanical anchorage system was developed to apply pre-strained Fe-SMA plates to the steel girders of the 113 years old bridge, which is daily subjected to passengers and heavy vehicles. The SME in the Fe-SMA was then activated by heating to approximately 260 ℃ using heating ceramic pads. The test results showed that achieved recovery stress of the Fe-SMA strips led to a maximum compressive stress of −33 MPa in the lower flange of the steel girder. This compressive stress could significantly increase the yield and fatigue strength of the strengthened girder. Before and after the strengthening, the bridge was loaded with a 45.34-ton crane. Prior to installation of the strengthening to the bridge a static test was performed in the laboratory to examine the efficiency of the proposed strengthening method.
KW - Historical steel bridge
KW - Shape memory alloy
KW - Shape memory effect
KW - Strengthening
UR - http://www.scopus.com/inward/record.url?scp=85121903183&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-88166-5_200
DO - 10.1007/978-3-030-88166-5_200
M3 - Conference contribution
AN - SCOPUS:85121903183
SN - 9783030881658
T3 - Lecture Notes in Civil Engineering
SP - 2311
EP - 2321
BT - 10th International Conference on FRP Composites in Civil Engineering - Proceedings of CICE 2020/2021
A2 - Ilki, Alper
A2 - Ispir, Medine
A2 - Inci, Pinar
PB - Springer Science and Business Media Deutschland GmbH
T2 - 10th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2021
Y2 - 8 December 2021 through 10 December 2021
ER -