Structural behavior of HS-SC reinforced concrete beams with longitudinal and transverse openings strengthened with CFRP laminates
Other Title(s)
السلوك الإنشائي للعتبات الخرسانية المسلحة عالية المقاومة ذاتية الرص ذت الفتحات الطولية و الجانبية المقواة بصفائح ألياف الكربون بالبوليمرية
Joint Authors
Abtan, Yarub Kati
Abd al-Jabbar, Husayn Zafir
Source
Journal of Engineering and Sustainable Development
Issue
Vol. 22, Issue 5 (30 Sep. 2018), pp.48-67, 20 p.
Publisher
al-Mustansyriah University College of Engineering
Publication Date
2018-09-30
Country of Publication
Iraq
No. of Pages
20
Main Subjects
Abstract EN
Service runs had produced several shortcomings when congested in one place.
so, using longitudinal and transverse opening in beams (BLTO) was creative solution for the purpose of serve those runs with other benefits, especially when utilized high strength self-compacting concrete (HS-SCC).
to control cracks in web opening regions which lead to possible leakage, carbon fiber reinforced polymer (CFRP) laminates was significant strengthening system to realize that purpose.
this study examined the behavior of thirteen reinforced concrete (RC) beams.
these beams were involved into three groups.
all beams were identical in dimensions, reinforcement, concrete type, and hole dimensions.
the evaluation is used to elect the optimum hollow core section, position effect of web openings with fixed hollow core section, and effect of strengthened web openings.
due to recorded load capacity, a reduction was produced by hollow core position at mid and bottom section by about (2%-14%), respectively, with comparing by solid section.
therefore, the optimum hollow core section was when it locate in mid beam section which used to unify BLTO sections.
BLTO types indicated different loading data according to web opening position.
the decrement of opening provision was about (20.4%) by compared with hollow beam (without web-opening) and about (22%) by compared with solid beam.
the optimum BLTO is when the web opening located in mid-shear zone, while the critical one recorded in web opening position in mid-span and near supports in same BLTO.
presence of CFRP system in same BLTO copy had enhanced beam resistance by about (29%) and prevents cracks to reach in web opening or with minimum hairline cracks without delaminating problem.
the registered failure mode of all beams was contained two main type, suddenly flexural failure in compressive zone by concrete cover crushing and flexural-shear failure.
additionally, local failure occurred at central CFRP strips by ripping-off concrete cover through the edges of it.
American Psychological Association (APA)
Abtan, Yarub Kati& Abd al-Jabbar, Husayn Zafir. 2018. Structural behavior of HS-SC reinforced concrete beams with longitudinal and transverse openings strengthened with CFRP laminates. Journal of Engineering and Sustainable Development،Vol. 22, no. 5, pp.48-67.
https://search.emarefa.net/detail/BIM-908780
Modern Language Association (MLA)
Abtan, Yarub Kati& Abd al-Jabbar, Husayn Zafir. Structural behavior of HS-SC reinforced concrete beams with longitudinal and transverse openings strengthened with CFRP laminates. Journal of Engineering and Sustainable Development Vol. 22, no. 5 (Sep. 2018), pp.48-67.
https://search.emarefa.net/detail/BIM-908780
American Medical Association (AMA)
Abtan, Yarub Kati& Abd al-Jabbar, Husayn Zafir. Structural behavior of HS-SC reinforced concrete beams with longitudinal and transverse openings strengthened with CFRP laminates. Journal of Engineering and Sustainable Development. 2018. Vol. 22, no. 5, pp.48-67.
https://search.emarefa.net/detail/BIM-908780
Data Type
Journal Articles
Language
English
Record ID
BIM-908780