Prestress state evolution during thermal activation of memory effect in concrete beams strengthened with external SMA wires
Authors:
- A. Debska,
- Piotr Gwozdziewicz,
- A. Seruga,
- X. Balandraud,
- J. F. Destrebecq
Abstract
The memory efect of shape-memory alloys (SMAs) has opened interesting perspectives to create prestress states in concrete elements. However, the procedure has not been yet fully resolved due to the complex thermomechanical behavior of these alloys, in addition to the practical difculties of mechanical coupling between SMA and concrete elements. The present study deals with tests on the development of prestressing forces in concrete beams during the thermal cycle required in the procedure. Pre-stretched nickel-titanium wires were externally placed on concrete prismatic beams equipped with strain gauges. As concrete rupture may occur during the heating by the Joule efect, a compromise must be found between the SMA pre-stretch level and the maximum temperature to be applied before returning to ambient temperature. A macroscopic model was developed to analyze this compromise. The complex thermomechanical response of SMAs implies a particular attention in the defnition of the ambient temperature and heating conditions for the creation of prestress states in concrete components.
- Record ID
- CUT958dbdedd6544e69be748450c164e79b
- Publication categories
- ;
- Author
- Journal series
- Archives of Civil and Mechanical Engineering, ISSN 1644-9665, e-ISSN 2083-3318
- Issue year
- 2020
- Vol
- 20
- No
- 4
- Pages
- [1-15]
- Article number
- 142
- Other elements of collation
- fot.; schem.; tab.; wykr.; Bibliografia (na s.) - 14-15; Bibliografia (liczba pozycji) - 40; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 20, Iss. 4
- Keywords in English
- shape memory alloy, prestressing force, bending, civil engineering, transformation temperature, nickel-titanium
- DOI
- DOI:10.1007/s43452-020-00133-y Opening in a new tab
- URL
- https://link.springer.com/article/10.1007/s43452-020-00133-y Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT958dbdedd6544e69be748450c164e79b/
- URN
urn:pkr-prod:CUT958dbdedd6544e69be748450c164e79b
* 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.