Numerical Analysis on the Bending Performance of Prestressed Superposing-Poured Composite Beams
Joint Authors
Zhao, Qijun
Wang, Jianmin
Zhu, Chengfeng
Xiao, Ziqiang
Liu, Junzhe
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-08-29
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Aiming at the bending performance of the prestressed superposing-poured concrete beam, the numerical simulation on the composite beams poured with the normal weight concrete (NWC) superposed on the fibred ceramsite lightweight aggregate concrete (LWAC) was conducted.
Three kinds of prestressing schemes, straight linear prestressing force, curved prestressing force not across the casting interface, and curved prestressing force across the casting interface, were simulated for comparison, and the influence of the casting interval time was also considered.
Results indicate that the stiffness of the superposing-poured beam can be effectively strengthened by considered schemes of the prestressing force; in addition, there are certain increases on the ultimate load except imposing the straight linear prestressing force.
As the curved prestressing force is imposed across the casting interface, the maximal interlayer slip of the casting interfacial transition zone (C-ITZ) approximately equals to that without the prestressing force.
The scalar stiffness degradation (SDEG) of the C-ITZ for the casting interval time being 14 days is obvious because of the weakening on the bonding performance of the C-ITZ.
Comparatively, the SDEG variation of the C-ITZ in the model with the curved prestressing force across the casting interface is smoother and smaller on the whole than the other two prestressed schemes for the case of the casting interval time being 14 days.
American Psychological Association (APA)
Wang, Jianmin& Zhu, Chengfeng& Xiao, Ziqiang& Zhao, Qijun& Liu, Junzhe. 2020. Numerical Analysis on the Bending Performance of Prestressed Superposing-Poured Composite Beams. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1125637
Modern Language Association (MLA)
Wang, Jianmin…[et al.]. Numerical Analysis on the Bending Performance of Prestressed Superposing-Poured Composite Beams. Advances in Civil Engineering No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1125637
American Medical Association (AMA)
Wang, Jianmin& Zhu, Chengfeng& Xiao, Ziqiang& Zhao, Qijun& Liu, Junzhe. Numerical Analysis on the Bending Performance of Prestressed Superposing-Poured Composite Beams. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1125637
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1125637