Details
| Original language | English |
|---|---|
| Title of host publication | Current Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems - Proceedings of the 8th International Conference on Structural Engineering, Mechanics and Computation, 2022 |
| Editors | Alphose Zingoni |
| Pages | 1357-1363 |
| Number of pages | 7 |
| ISBN (electronic) | 9781003348443 |
| Publication status | Published - 2022 |
| Event | 8th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2022 - Cape Town, South Africa Duration: 5 Sept 2022 → 7 Sept 2022 |
Publication series
| Name | Current Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems - Proceedings of the 8th International Conference on Structural Engineering, Mechanics and Computation, 2022 |
|---|
Abstract
The expected long-term deformations of concrete structures today are calculated using creep models, assuming constant mechanical loads. Nevertheless, in many structures like bridges constant creep loads are superimposed with cyclic loads of substantial magnitude. The effect of such a cyclic loading onto the concrete deformation behaviour so far has been unkown. An underestimation of the resulting deformation by established creep models might cause serious damage and safety risks for the structure. Before this background, the strain development due to creep and cyclic loading of a normal strength concrete have been comparatively investigated at two different moisture contents (approx. 100 % and 75 %). The results show that viscous strains from cyclic loading are significantly higher than those from purely static loading despite identical mean stress levels. Further, the resulting strains are considerably affected by the moisture content of concrete. The gathered results provide the basis for improving existing creep models.
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Engineering(all)
- Computational Mechanics
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Current Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems - Proceedings of the 8th International Conference on Structural Engineering, Mechanics and Computation, 2022. ed. / Alphose Zingoni. 2022. p. 1357-1363 (Current Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems - Proceedings of the 8th International Conference on Structural Engineering, Mechanics and Computation, 2022).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Influence of moisture content on strain development of concrete subjected to compressive creep and cyclic loading
AU - Kern, B.
AU - Oneschkow, N.
AU - Haist, M.
AU - Lohaus, L.
N1 - Funding Information: This research project was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) within the collaborative project “Linear and nonlinear cyclic creep at defined moisture conditions” (399508601). The authors would like to express their gratitude for the financial support.
PY - 2022
Y1 - 2022
N2 - The expected long-term deformations of concrete structures today are calculated using creep models, assuming constant mechanical loads. Nevertheless, in many structures like bridges constant creep loads are superimposed with cyclic loads of substantial magnitude. The effect of such a cyclic loading onto the concrete deformation behaviour so far has been unkown. An underestimation of the resulting deformation by established creep models might cause serious damage and safety risks for the structure. Before this background, the strain development due to creep and cyclic loading of a normal strength concrete have been comparatively investigated at two different moisture contents (approx. 100 % and 75 %). The results show that viscous strains from cyclic loading are significantly higher than those from purely static loading despite identical mean stress levels. Further, the resulting strains are considerably affected by the moisture content of concrete. The gathered results provide the basis for improving existing creep models.
AB - The expected long-term deformations of concrete structures today are calculated using creep models, assuming constant mechanical loads. Nevertheless, in many structures like bridges constant creep loads are superimposed with cyclic loads of substantial magnitude. The effect of such a cyclic loading onto the concrete deformation behaviour so far has been unkown. An underestimation of the resulting deformation by established creep models might cause serious damage and safety risks for the structure. Before this background, the strain development due to creep and cyclic loading of a normal strength concrete have been comparatively investigated at two different moisture contents (approx. 100 % and 75 %). The results show that viscous strains from cyclic loading are significantly higher than those from purely static loading despite identical mean stress levels. Further, the resulting strains are considerably affected by the moisture content of concrete. The gathered results provide the basis for improving existing creep models.
UR - http://www.scopus.com/inward/record.url?scp=85145596914&partnerID=8YFLogxK
U2 - 10.1201/9781003348443-221
DO - 10.1201/9781003348443-221
M3 - Conference contribution
AN - SCOPUS:85145596914
T3 - Current Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems - Proceedings of the 8th International Conference on Structural Engineering, Mechanics and Computation, 2022
SP - 1357
EP - 1363
BT - Current Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems - Proceedings of the 8th International Conference on Structural Engineering, Mechanics and Computation, 2022
A2 - Zingoni, Alphose
T2 - 8th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2022
Y2 - 5 September 2022 through 7 September 2022
ER -