Damage reasons analysis of PT cables blister in road bridge
Authors:
- Michał Gałuszka,
- Piotr Gwoździewicz,
- Magda Lubecka,
- Michał Betlej,
- Henryk Ciurej
Abstract
Analysis of the reasons for the damages of a blister working as an anchorage area for two prestressing cables in a bridge structure is the subject of this work. The selected problem constitutes an actual research direction. The reinforcement of the Anchorage areas and the bister shaping as well as its work in connection to the adjacent concrete requires an advanced numerical analysis in particular when the blister houses two or more cable anchorages. The common design practice follows the use of the simplified formulas as well as reinforcement solutions for every Anchorage separately. Nevertheless under the set of several anchorages in the volume of one blister the stress fields overlap each other and in such circumstances the analysis should be carried out with the use of more advanced methods and tools. In the paper the morphology of the damages layout of one blister (cracks pattern) is presented together with the damages reasons. The anchorages area was modelled in the FEM software as a volume with the reinforcement. The numerical model was built with the use of the non-linear constitutive law for concrete (smeared cracks model) and steel. The concreto volume was represented by the finite elements of the type HEX8, reinforcement was described with the use of truss elements. In result of the analysis, maps of the principal tensile stress were obtained together with the cracks pattern, which followed the crack layout observed in the real structure.
- Record ID
- CUT5da3c4bb2ad047bda1d567cf71faa293
- Publication categories
- ; ;
- Author
- Pages
- 3679-3689
- Other elements of collation
- fot.; rys.; schem.; tab.; Bibliografia (na s.) - 3689; Oznaczenie streszczenia - Abstr.
- Substantive notes
- Data cop. 2019
- Tyt. źródła wg okł.
- Book
- Foster Stephen, Stephen Foster Gilbert R. Ian, R. Ian Gilbert Mendis Priyan Priyan Mendis [et al.] (eds.): Fib 2018 : Better, Smarter, Stronger : proceedings for the 2018 fib Congress held in Melbourne, Australia, October 7-11, 2018, 2019, Lausanne, Fédération internationale du béton (fib), ISBN 978-1-877040-15-3
- Keywords in English
- prestressing cables, FEM modelling, anchorage
- URL
- https://www.fib-international.org/publications/fib-proceedings/5th-i-fib-i-congress-in-melbourne,-australia-2018-proceedings-detail.html Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 5
- Additional fields
- Indeksowana w: Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT5da3c4bb2ad047bda1d567cf71faa293/
- URN
urn:pkr-prod:CUT5da3c4bb2ad047bda1d567cf71faa293
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.