Performance of quadrilateral perforated prestressed concrete rafters
Joint Authors
Oukaili, Nazar K.
al-Khafaji, Falah J.
Izzat, Amir Faruq
Source
Journal of Engineering Research
Issue
Vol. 11, Issue 1 B (31 Mar. 2023), pp.26-37, 12 p.
Publisher
Kuwait University Academic Publication Council
Publication Date
2023-03-31
Country of Publication
Kuwait
No. of Pages
12
Main Subjects
Engineering & Technology Sciences (Multidisciplinary)
Abstract EN
This study focuses on the behavior of simply supported perforated prestressed concrete rafters (PPCRs) under single midspan monotonic static loading.
The experimental program consists of testing seven specimens, one solid (control) rafter, and six perforated quadrilateral openings.
The main investigated variables are the number and height of the openings.
The test findings indicate that, in comparison to the solid rafter, the presence of quadrilateral openings in the PPCRs led to reducing the load capacity by (4.3-36%) and increasing the midspan deflection at ultimate by (14.8-33%).
Also, increasing the number of concrete posts between openings resulted in increasing the failure load and decreasing the deflection at all stages of performance of the prestressed concrete rafter.
On the other hand, decreasing the depth of the upper and lower chords by 25% for PPCRs with the same number of openings led to a reduction in the failure load by 36, 29.5, and 24.5% for rafters with 6, 8, and 10 openings, respectively.
American Psychological Association (APA)
Izzat, Amir Faruq& Oukaili, Nazar K.& al-Khafaji, Falah J.. 2023. Performance of quadrilateral perforated prestressed concrete rafters. Journal of Engineering Research،Vol. 11, no. 1 B, pp.26-37.
https://search.emarefa.net/detail/BIM-1495520
Modern Language Association (MLA)
Izzat, Amir Faruq…[et al.]. Performance of quadrilateral perforated prestressed concrete rafters. Journal of Engineering Research Vol. 11, no. 1 B (Mar. 2023), pp.26-37.
https://search.emarefa.net/detail/BIM-1495520
American Medical Association (AMA)
Izzat, Amir Faruq& Oukaili, Nazar K.& al-Khafaji, Falah J.. Performance of quadrilateral perforated prestressed concrete rafters. Journal of Engineering Research. 2023. Vol. 11, no. 1 B, pp.26-37.
https://search.emarefa.net/detail/BIM-1495520
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 36-37
Record ID
BIM-1495520