Deformability of non-prismatic prestressed concrete beams with multiple openings of different configurations
This work presents experimental research using draped prestressed steel strands to improve the load-carrying capacity of prestressed concrete non-prismatic beams with multiple openings of various designs. The short-term deflection of non-prismatic prestressed concrete beams (NPCBs) flexural members...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2022-04-01
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| Series: | Journal of the Mechanical Behavior of Materials |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/jmbm-2022-0013 |
| _version_ | 1797998376998928384 |
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| author | Al-Hilali Amjad Majeed Izzet Amer Farouk Oukaili Nazar K. |
| author_facet | Al-Hilali Amjad Majeed Izzet Amer Farouk Oukaili Nazar K. |
| author_sort | Al-Hilali Amjad Majeed |
| collection | DOAJ |
| description | This work presents experimental research using draped prestressed steel strands to improve the load-carrying capacity of prestressed concrete non-prismatic beams with multiple openings of various designs. The short-term deflection of non-prismatic prestressed concrete beams (NPCBs) flexural members under static loading were used to evaluate this improvement. Six simply supported (NPCBs) beams, five beams with openings, and one solid specimen used as a reference beam were all tested as part of the experiment. All of the beams were subjected to a monotonic midpoint load test. The configuration of the opening (quadrilateral or circular), as well as the depth of the chords, were the variables studied in this study. In comparison to a solid beam, experimental results show that beams with openings have a lower load-carrying capacity not exceeding (2.3–10.6%) and higher mid-span deflection through all loading stages of elastic, service, and ultimate loads (14–73%), (19–44%), and (31–55%), respectively. Furthermore, specimens with circular openings had stiffer behaviour under load than those with quadrilateral openings. Beams with quadrilateral openings and inclined posts, on the other hand, were stiffer than beams with quadrilateral openings and vertical posts. |
| first_indexed | 2024-04-11T10:47:45Z |
| format | Article |
| id | doaj.art-861c6c1f90c649f487b6dbceed3bc85a |
| institution | Directory Open Access Journal |
| issn | 0334-8938 2191-0243 |
| language | English |
| last_indexed | 2024-04-11T10:47:45Z |
| publishDate | 2022-04-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Journal of the Mechanical Behavior of Materials |
| spelling | doaj.art-861c6c1f90c649f487b6dbceed3bc85a2022-12-22T04:29:00ZengDe GruyterJournal of the Mechanical Behavior of Materials0334-89382191-02432022-04-0131111812610.1515/jmbm-2022-0013Deformability of non-prismatic prestressed concrete beams with multiple openings of different configurationsAl-Hilali Amjad Majeed0Izzet Amer Farouk1Oukaili Nazar K.2Department of Civil Engineering, University of Baghdad, IraqDepartment of Civil Engineering, University of Baghdad, IraqDepartment of Civil Engineering, University of Baghdad, IraqThis work presents experimental research using draped prestressed steel strands to improve the load-carrying capacity of prestressed concrete non-prismatic beams with multiple openings of various designs. The short-term deflection of non-prismatic prestressed concrete beams (NPCBs) flexural members under static loading were used to evaluate this improvement. Six simply supported (NPCBs) beams, five beams with openings, and one solid specimen used as a reference beam were all tested as part of the experiment. All of the beams were subjected to a monotonic midpoint load test. The configuration of the opening (quadrilateral or circular), as well as the depth of the chords, were the variables studied in this study. In comparison to a solid beam, experimental results show that beams with openings have a lower load-carrying capacity not exceeding (2.3–10.6%) and higher mid-span deflection through all loading stages of elastic, service, and ultimate loads (14–73%), (19–44%), and (31–55%), respectively. Furthermore, specimens with circular openings had stiffer behaviour under load than those with quadrilateral openings. Beams with quadrilateral openings and inclined posts, on the other hand, were stiffer than beams with quadrilateral openings and vertical posts.https://doi.org/10.1515/jmbm-2022-0013prestressednon-prismaticmultiple openingsdiagonal reinforcement |
| spellingShingle | Al-Hilali Amjad Majeed Izzet Amer Farouk Oukaili Nazar K. Deformability of non-prismatic prestressed concrete beams with multiple openings of different configurations Journal of the Mechanical Behavior of Materials prestressed non-prismatic multiple openings diagonal reinforcement |
| title | Deformability of non-prismatic prestressed concrete beams with multiple openings of different configurations |
| title_full | Deformability of non-prismatic prestressed concrete beams with multiple openings of different configurations |
| title_fullStr | Deformability of non-prismatic prestressed concrete beams with multiple openings of different configurations |
| title_full_unstemmed | Deformability of non-prismatic prestressed concrete beams with multiple openings of different configurations |
| title_short | Deformability of non-prismatic prestressed concrete beams with multiple openings of different configurations |
| title_sort | deformability of non prismatic prestressed concrete beams with multiple openings of different configurations |
| topic | prestressed non-prismatic multiple openings diagonal reinforcement |
| url | https://doi.org/10.1515/jmbm-2022-0013 |
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