Smart composite rebars based on DFOS technology as nervous system of hybrid footbridge deck: a case study
Authors:
- Rafał Sieńko,
- Łukasz Bednarski,
- Tomasz Howiacki
Abstract
The article presents smart arch footbridge in Nowy Sącz (Poland) with hybrid composite-concrete deck. Composite stay-in-place formwork reinforced only with composite rebars was continuously concreted over entire span length of 80 m. The structure was equipped with unique structural health monitoring system based on distributed fibre optic sensing (DFOS) technology. Smart composite EpsilonRebars were used for this purpose providing comprehensive knowledge about strains profile over the entire length with spatial resolution starting from as fine as 5 mm. This rebars play a dual role in the structure: as a reinforcement they are included in load bearing capacity calculations and on the other hand they monitor strain state inside the concrete deck. Composite DFOS rebars integrated with the hybrid deck during construction stage allow for the analysis of its structural behaviour from the very beginning, including the thermal-shrinkage strains of early-age concrete or its deadweight. This approach in bridge engineering can be compared to the human nervous system able to detect threats in every point of the object.
- Record ID
- CUTf23fc67986934e79a024393d80364804
- Publication categories
- ; ;
- Author
- Pages
- 331-341
- Other elements of collation
- fot.; rys.; wykr.; Bibliografia (na s.) - 340-341; Bibliografia (liczba pozycji) - 14; Oznaczenie streszczenia - Abstr.
- Book
- Rizzo Piervincenzo, Piervincenzo Rizzo Milazzo Alberto Alberto Milazzo (eds.): European Workshop on Structural Health Monitoring : Special Collection of 2020 Papers. Vol. 2, Lecture Notes in Civil Engineering, no. 128, 2021, Cham, Springer, Springer, ISBN 978-3-030-64908-1 (online)
- Keywords in English
- EpsilonRebar, DFOS strain sensors, composite rods, concrete strains, footbridge
- DOI
- DOI:10.1007/978-3-030-64908-1_31 Opening in a new tab
- URL
- https://link.springer.com/chapter/10.1007/978-3-030-64908-1_31 Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 20
- Publication indicators
- = 4
- Additional fields
- Indeksowana w: Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTf23fc67986934e79a024393d80364804/
- URN
urn:pkr-prod:CUTf23fc67986934e79a024393d80364804
* 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.