In Situ Verification of Tendons of First Segmental Post-Tensioned Road Bridges
Prestressed concrete bridges represent a massive part of our infrastructure. The state of the prestressing is crucial for the load-bearing capacity and remaining service life of these structures. Harmful factors, for instance, corrosion negatively affect the prestressing steel and consequently the l...
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| Format: | Article |
| Language: | English |
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Sciendo
2024-12-01
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| Series: | Civil and Environmental Engineering |
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| Online Access: | https://doi.org/10.2478/cee-2024-0067 |
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| author | Kralovanec Jakub Moravcik Martin Zahuranec Michal Bahleda Frantisek |
| author_facet | Kralovanec Jakub Moravcik Martin Zahuranec Michal Bahleda Frantisek |
| author_sort | Kralovanec Jakub |
| collection | DOAJ |
| description | Prestressed concrete bridges represent a massive part of our infrastructure. The state of the prestressing is crucial for the load-bearing capacity and remaining service life of these structures. Harmful factors, for instance, corrosion negatively affect the prestressing steel and consequently the level of prestressing. The risk of corrosion is higher if the ducts are not injected (or partially injected) by cement grout. Therefore, the detection of the state of the prestressing steel is an important part of the diagnostic survey which should be performed on existing prestressed concrete structures. This paper describes the outcomes of a diagnostic survey performed on four segmental post-tensioned road bridges built in the 1970s. Specifically, one single-span bridge, one three-span bridge, and two two-span bridges are pivotal objects of this study. These bridges’ prestressing has been assessed and the outcomes have been evaluated with final recommendations for the administrator. To sum up, the prestressing of assessed bridges was in relatively good condition with none or only local corrosion. Consequently, the overall prestressing level should not be hugely affected, but certain actions from the administrator are required to repair detected failures and extend service life. |
| format | Article |
| id | doaj-art-b7d76221458141b9b39fd3a070b980f5 |
| institution | Kabale University |
| issn | 2199-6512 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Civil and Environmental Engineering |
| spelling | doaj-art-b7d76221458141b9b39fd3a070b980f52025-02-02T15:47:53ZengSciendoCivil and Environmental Engineering2199-65122024-12-0120292093210.2478/cee-2024-0067In Situ Verification of Tendons of First Segmental Post-Tensioned Road BridgesKralovanec Jakub0Moravcik Martin1Zahuranec Michal2Bahleda Frantisek3Department of Structures and Bridges, Faculty of Civil Engineering, University of Zilina, Univerzitna 8215/1, 010 26Zilina, SlovakiaDepartment of Structures and Bridges, Faculty of Civil Engineering, University of Zilina, Univerzitna 8215/1, 010 26Zilina, SlovakiaLaboratory of Civil Engineering, Faculty of Civil Engineering, University of Zilina, Univerzitna 8215/1, 010 26Zilina, SlovakiaLaboratory of Civil Engineering, Faculty of Civil Engineering, University of Zilina, Univerzitna 8215/1, 010 26Zilina, SlovakiaPrestressed concrete bridges represent a massive part of our infrastructure. The state of the prestressing is crucial for the load-bearing capacity and remaining service life of these structures. Harmful factors, for instance, corrosion negatively affect the prestressing steel and consequently the level of prestressing. The risk of corrosion is higher if the ducts are not injected (or partially injected) by cement grout. Therefore, the detection of the state of the prestressing steel is an important part of the diagnostic survey which should be performed on existing prestressed concrete structures. This paper describes the outcomes of a diagnostic survey performed on four segmental post-tensioned road bridges built in the 1970s. Specifically, one single-span bridge, one three-span bridge, and two two-span bridges are pivotal objects of this study. These bridges’ prestressing has been assessed and the outcomes have been evaluated with final recommendations for the administrator. To sum up, the prestressing of assessed bridges was in relatively good condition with none or only local corrosion. Consequently, the overall prestressing level should not be hugely affected, but certain actions from the administrator are required to repair detected failures and extend service life.https://doi.org/10.2478/cee-2024-0067assessmentbridgessegmental structuresprestressingdestructive testingcorrosion. |
| spellingShingle | Kralovanec Jakub Moravcik Martin Zahuranec Michal Bahleda Frantisek In Situ Verification of Tendons of First Segmental Post-Tensioned Road Bridges Civil and Environmental Engineering assessment bridges segmental structures prestressing destructive testing corrosion. |
| title | In Situ Verification of Tendons of First Segmental Post-Tensioned Road Bridges |
| title_full | In Situ Verification of Tendons of First Segmental Post-Tensioned Road Bridges |
| title_fullStr | In Situ Verification of Tendons of First Segmental Post-Tensioned Road Bridges |
| title_full_unstemmed | In Situ Verification of Tendons of First Segmental Post-Tensioned Road Bridges |
| title_short | In Situ Verification of Tendons of First Segmental Post-Tensioned Road Bridges |
| title_sort | in situ verification of tendons of first segmental post tensioned road bridges |
| topic | assessment bridges segmental structures prestressing destructive testing corrosion. |
| url | https://doi.org/10.2478/cee-2024-0067 |
| work_keys_str_mv | AT kralovanecjakub insituverificationoftendonsoffirstsegmentalposttensionedroadbridges AT moravcikmartin insituverificationoftendonsoffirstsegmentalposttensionedroadbridges AT zahuranecmichal insituverificationoftendonsoffirstsegmentalposttensionedroadbridges AT bahledafrantisek insituverificationoftendonsoffirstsegmentalposttensionedroadbridges |