Failure Mechanism and Mechanical Properties of a Retard-Bonded Prestressed Concrete Girder While Curing
Joint Authors
Sui, Wei-ning
Wang, Zi-yi
Zhao, Zhong-hua
Wang, Zhan-fei
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-05-23
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
The mechanical performance and failure mechanism of a retard-bonded (RB) type prestressed concrete (PC) girder in different curing periods are investigated through four-point loading experiments.
Six RB-type PC girder specimens with three RB prestressed tendons (PTs) along the longitudinal direction were fabricated.
The measurements include the following: the retard-bonded agent ages versus the load-carrying capacity of the girder, the deflection of girder, the strain distribution at key cross sections through the girder, the pressure at PT tensile and anchoring ends, crack distribution, and so on.
The experimental results indicate that when stretching the PT within proper tensile period, the retarder curing ages have less impact on the cracking load and a greater impact on the ultimate bending strength; the ultimate bending strength of the RB-type PC girder increased with increased retarder curing.
Nonetheless, stretching the PT after excessive retarder curing (after the retarder had solidified completely), the cracks in the PC girder’s pure bending segment are wider and less numerous, the ultimate bending strength of the girder is lower, and its ductility is poor.
American Psychological Association (APA)
Sui, Wei-ning& Wang, Zi-yi& Zhao, Zhong-hua& Wang, Zhan-fei. 2019. Failure Mechanism and Mechanical Properties of a Retard-Bonded Prestressed Concrete Girder While Curing. Advances in Civil Engineering،Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1116970
Modern Language Association (MLA)
Sui, Wei-ning…[et al.]. Failure Mechanism and Mechanical Properties of a Retard-Bonded Prestressed Concrete Girder While Curing. Advances in Civil Engineering No. 2019 (2019), pp.1-14.
https://search.emarefa.net/detail/BIM-1116970
American Medical Association (AMA)
Sui, Wei-ning& Wang, Zi-yi& Zhao, Zhong-hua& Wang, Zhan-fei. Failure Mechanism and Mechanical Properties of a Retard-Bonded Prestressed Concrete Girder While Curing. Advances in Civil Engineering. 2019. Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1116970
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1116970