![](/images/graphics-bg.png)
Flexural Behavior of Posttensioned Concrete Beams with Unbonded High-Strength Strands
Joint Authors
Source
Advances in Materials Science and Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-04-09
Country of Publication
Egypt
No. of Pages
12
Abstract EN
This paper assesses the applicability of high-strength strands to current design codes and various existing equations.
To evaluate the flexural performance of posttensioned concrete members with Grade 2400 strands, a flexural experiment was conducted on eleven specimens.
Test variables included the tensile strength of strands, the number of strands, the cross-section shape, and anchorage zone reinforcement details.
The test results were compared with ACI 318-19, AASHTO, and equations of Du and Tao, Naaman and Alkhari, and Harajli to evaluate the applicability of flexural strength equations for posttensioned concrete members using unbonded high-strength strands.
Results indicated that the provisions of ACI 318-19 and AASHTO design codes and the existing equations underestimated the increased stress of the high-strength strands.
Additionally, results demonstrate that improved equations are needed to consider the strain-compatibility model, plastic hinge length, and relationship between bonded reinforcement, concrete, and prestressing steel in posttensioned members using high-strength strands.
American Psychological Association (APA)
Kim, Min Sook& Lee, Young Hak. 2020. Flexural Behavior of Posttensioned Concrete Beams with Unbonded High-Strength Strands. Advances in Materials Science and Engineering،Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1128580
Modern Language Association (MLA)
Kim, Min Sook& Lee, Young Hak. Flexural Behavior of Posttensioned Concrete Beams with Unbonded High-Strength Strands. Advances in Materials Science and Engineering No. 2020 (2020), pp.1-12.
https://search.emarefa.net/detail/BIM-1128580
American Medical Association (AMA)
Kim, Min Sook& Lee, Young Hak. Flexural Behavior of Posttensioned Concrete Beams with Unbonded High-Strength Strands. Advances in Materials Science and Engineering. 2020. Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1128580
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1128580