Gamma prediction models for long-term creep deformations of prestressed concrete bridges
For long-span bridges as well as statically indeterminate frame structures it is essential to implement efficient and realistic prediction models for the long-term processes of concrete creep, shrinkage, and steel relaxation. In order to systematically study the main influential factors in bridge de...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Vilnius Gediminas Technical University
2017-06-01
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| Series: | Journal of Civil Engineering and Management |
| Subjects: | |
| Online Access: | http://journals.vgtu.lt/index.php/JCEM/article/view/1185 |
| _version_ | 1818874736711565312 |
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| author | Alfred Strauss Roman Wan-Wendner Anja Vidovic Ivan Zambon Qiang Yu Dan M. Frangopol Konrad Bergmeister |
| author_facet | Alfred Strauss Roman Wan-Wendner Anja Vidovic Ivan Zambon Qiang Yu Dan M. Frangopol Konrad Bergmeister |
| author_sort | Alfred Strauss |
| collection | DOAJ |
| description | For long-span bridges as well as statically indeterminate frame structures it is essential to implement efficient and realistic prediction models for the long-term processes of concrete creep, shrinkage, and steel relaxation. In order to systematically study the main influential factors in bridge deflection measurements a probabilistic analysis can be performed. Due to the associated computational costs such investigations are limited. The predictions based on the highly scattered input parameters are associated with uncertainties. There is interest in alternative prediction models decoupled from complex analytical and computationally expensive numerical models, using measured structural responses. A gamma process is an example of such an alternative method. This process is suitable for capturing evolving structural response quantities and deterioration mechanisms like crack propagation, corrosion, creep, and shrinkage, as reported in Ohadi and Micic (2011). The objective of this paper is to illustrate the use of gamma process approaches for the prediction of the creep and shrinkage performance of prestressed concrete bridges. The presented approaches incorporate uncertainties and make predictions more reliable with the help of structural health monitoring (SHM) data. The creep-shrinkage response of a prestressed box girder bridge serves for the calibration and evaluation of the considered gamma process approaches. |
| first_indexed | 2024-12-19T13:15:21Z |
| format | Article |
| id | doaj.art-1b0c604986f64260be8d0a6019b98f96 |
| institution | Directory Open Access Journal |
| issn | 1392-3730 1822-3605 |
| language | English |
| last_indexed | 2024-12-19T13:15:21Z |
| publishDate | 2017-06-01 |
| publisher | Vilnius Gediminas Technical University |
| record_format | Article |
| series | Journal of Civil Engineering and Management |
| spelling | doaj.art-1b0c604986f64260be8d0a6019b98f962022-12-21T20:19:50ZengVilnius Gediminas Technical UniversityJournal of Civil Engineering and Management1392-37301822-36052017-06-0123610.3846/13923730.2017.1335652Gamma prediction models for long-term creep deformations of prestressed concrete bridgesAlfred Strauss0Roman Wan-Wendner1Anja Vidovic2Ivan Zambon3Qiang Yu4Dan M. Frangopol5Konrad Bergmeister6Department of Civil Engineering and Natural Hazards, Institute of Structural Engineering, University of Natural Resources and Life Sciences, Peter Jordanstrasse 82, 1190 Vienna, AustriaChristian Doppler Laboratory LiCRoFast, Institute of Structural Engineering, University of Natural Resources and Life Sciences, Peter Jordanstrasse 82, 1190 Vienna, AustriaDepartment of Civil Engineering and Natural Hazards, Institute of Structural Engineering, University of Natural Resources and Life Sciences, Peter Jordanstrasse 82, 1190 Vienna, AustriaDepartment of Civil Engineering and Natural Hazards, Institute of Structural Engineering, University of Natural Resources and Life Sciences, Peter Jordanstrasse 82, 1190 Vienna, AustriaSwanson School of Engineering, University of Pittsburgh, Benedum Hall, 3700 O’Hara Street, Pittsburgh PA 15261, USADepartment of Civil and Environmental Engineering, ATLSS Engineering Research Center, Lehigh University, 117 ATLSS Dr., Bethlehem, PA 18015-4729, USADepartment of Civil Engineering and Natural Hazards, Institute of Structural Engineering, University of Natural Resources and Life Sciences, Peter Jordanstrasse 82, 1190 Vienna, AustriaFor long-span bridges as well as statically indeterminate frame structures it is essential to implement efficient and realistic prediction models for the long-term processes of concrete creep, shrinkage, and steel relaxation. In order to systematically study the main influential factors in bridge deflection measurements a probabilistic analysis can be performed. Due to the associated computational costs such investigations are limited. The predictions based on the highly scattered input parameters are associated with uncertainties. There is interest in alternative prediction models decoupled from complex analytical and computationally expensive numerical models, using measured structural responses. A gamma process is an example of such an alternative method. This process is suitable for capturing evolving structural response quantities and deterioration mechanisms like crack propagation, corrosion, creep, and shrinkage, as reported in Ohadi and Micic (2011). The objective of this paper is to illustrate the use of gamma process approaches for the prediction of the creep and shrinkage performance of prestressed concrete bridges. The presented approaches incorporate uncertainties and make predictions more reliable with the help of structural health monitoring (SHM) data. The creep-shrinkage response of a prestressed box girder bridge serves for the calibration and evaluation of the considered gamma process approaches.http://journals.vgtu.lt/index.php/JCEM/article/view/1185realistic creep modelgamma processstatically indeterminate structuresprobabilitybox girder bridges |
| spellingShingle | Alfred Strauss Roman Wan-Wendner Anja Vidovic Ivan Zambon Qiang Yu Dan M. Frangopol Konrad Bergmeister Gamma prediction models for long-term creep deformations of prestressed concrete bridges Journal of Civil Engineering and Management realistic creep model gamma process statically indeterminate structures probability box girder bridges |
| title | Gamma prediction models for long-term creep deformations of prestressed concrete bridges |
| title_full | Gamma prediction models for long-term creep deformations of prestressed concrete bridges |
| title_fullStr | Gamma prediction models for long-term creep deformations of prestressed concrete bridges |
| title_full_unstemmed | Gamma prediction models for long-term creep deformations of prestressed concrete bridges |
| title_short | Gamma prediction models for long-term creep deformations of prestressed concrete bridges |
| title_sort | gamma prediction models for long term creep deformations of prestressed concrete bridges |
| topic | realistic creep model gamma process statically indeterminate structures probability box girder bridges |
| url | http://journals.vgtu.lt/index.php/JCEM/article/view/1185 |
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