Time-Dependent Behavior of Composite Steel–Recycled Aggregate Concrete Beams via Thermomechanical Finite Element Modeling
Autor(en): |
Jinsheng Yang
Changyong Liu Qinghe Wang Yue Geng |
---|---|
Medium: | Fachartikel |
Sprache(n): | Englisch |
Veröffentlicht in: | Buildings, 7 Juni 2022, n. 6, v. 12 |
Seite(n): | 756 |
DOI: | 10.3390/buildings12060756 |
Abstrakt: |
This paper aims to investigate the impact of recycled coarse aggregate (RCA) on the time-dependent behavior of composite steel–recycled aggregate concrete (RAC) beams. The FE models of the composite beams were established, and a parametric study was conducted to obtain the primary factors. Furthermore, the design method for predicting the long-term deflection was proposed by including the shrinkage deflection component. The results showed that the RCA replacement ratio significantly influenced the long-term deflection of composite beams; the long-term deflection of composite beams with 100% RCA increased by 3.5–17.2% compared with those without RCA. Moreover, using uniform shrinkage and creep models led to a 4.5–10.3% overestimation of the long-term deflection of the composite beams with the composite slabs due to nonuniform shrinkage and creep distributions. Finally, the proposed design procedures could accurately predict the long-term deflection of the composite steel–RAC beams, and the difference between the calculated and FE results ranged from 0.961 to 0.986. |
Copyright: | © 2022 by the authors; licensee MDPI, Basel, Switzerland. |
Lizenz: | Dieses Werk wurde unter der Creative-Commons-Lizenz Namensnennung 4.0 International (CC-BY 4.0) veröffentlicht und darf unter den Lizenzbedinungen vervielfältigt, verbreitet, öffentlich zugänglich gemacht, sowie abgewandelt und bearbeitet werden. Dabei muss der Urheber bzw. Rechteinhaber genannt und die Lizenzbedingungen eingehalten werden. |
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10679576 - Veröffentlicht am:
17.06.2022 - Geändert am:
10.11.2022