FEM analysis of bond between concrete and seven-wire prestressing strand
Authors:
- Marcin Dyba
Abstract
Detailed FEM analysis of the pull-out test of seven-wire prestressing strand form concrete sample is the purpose of the article. A 3D numerical model of a seven-wire prestressing strand concreted in the concrete cube was made. The assumption of the most trusted modeling of the strand geometry for numerical calculations was assumed. The mechanical parameters of the materials and interface elements for analysis were adopted based on the results obtained from the experimental tests previously carried out by the author. As a result of numerical calculations, it was possible to trace the deformation state, stresses and cracking as well as their development along with the change of the strand displacement in the sample. The images of deformations and stresses in the sample confirmed theoretical considerations and suppositions from experimental tests about its accumulation of the largest values in longitudinal concrete wedges in the closest cover of the strand. During the test, the concrete inside the cube cracked quickly. The first cracks appear in the zone of the nearest cover of the strand. Numerical analysis made it possible to observe both the failure mechanisms identified in the experimental tests. The first mechanism consisted in cutting the longitudinal concrete wedges between the individual wires. The second mechanism was based on the rotation of the strand and its slip along the route of the twist.
- Record ID
- CUT74ecef477b294deab9a292a0e960e8a5
- Publication categories
- ; ;
- Author
- Journal series
- IOP Conference Series: Materials Science and Engineering, ISSN 1757-8981, e-ISSN 1757-899X, Irregular
- Issue year
- 2020
- Vol
- 960
- No
- 3
- Pages
- [1-8]
- Article number
- 032077
- Other elements of collation
- rys.; tab.; wykr.; Bibliografia (na s.) - 8; Bibliografia (liczba pozycji) - 5; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 960, No 3
- Conference
- 5th World Multidisciplinary Civil Engineering-Architecture-Urban Planning Symposium – WMCAUS (WMCAUS 2020), 2020, 15-06-2020 - 19-06-2020, Prague, Czechy
- Keywords in English
- bond between concrete and seven-wire strand, bond-slip, FEM nonlinear analysis, puli-out test, stress state, cracking of concrete
- DOI
- DOI:10.1088/1757-899X/960/3/032077 Opening in a new tab
- URL
- https://iopscience.iop.org/article/10.1088/1757-899X/960/3/032077 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 5
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT74ecef477b294deab9a292a0e960e8a5/
- URN
urn:pkr-prod:CUT74ecef477b294deab9a292a0e960e8a5
* 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.