Effect of shear span-depth ratio on shear strength of porcelanite lightweight aggregate reinforced concrete deep beams strengthened by externally bonded CFRP strips
Joint Authors
Muhammad, Ahlam Sadir
Sarsam, Qays Fuad
al-Bayati, Nabil Abd al-Majid Jaddu
Source
Engineering and Technology Journal
Issue
Vol. 35, Issue 3A (31 Mar. 2017), pp.267-275, 9 p.
Publisher
Publication Date
2017-03-31
Country of Publication
Iraq
No. of Pages
9
Main Subjects
Engineering & Technology Sciences (Multidisciplinary)
Abstract EN
This paper presents an experimental investigation of structural behaviour of reinforced concrete deep beams strengthened in shear by CFRP strips.
The experimental program consisted of fabricating, casting and testing of nine identical porcelainte lightweight aggregate reinforced concrete deep beams.
Three of the tested deep beams were unstrenghtened to serve as reference beams, while the remaining beams were tested after being strengthened using CFRP strips in two different orientations (vertical and horizontal).
The locally available natural porcelanite aggregate is used to produce lightweight aggregate concrete.
The beams were designed to satisfy the requirements of ACI 318M- 14 building code.
In order to insure shear failure modes, adequate flexural steel reinforcement were provided.
Effect of three different values of shear span to effective depth ratio (a / d = 1.0, 0.8, 1.2) were selected.
All beams have been tested as a simply supported beams subjected to two concentrated points loading.
The beam specimens were tested up to failure under monotonic loads.
The experimental work showed that the failure load increases as the shear span to effective depth ratio deceases.
As the shear span to effective depth ratio decreased from 1.0 to 0.8, the percentage of increase in the ultimate load was about 24 %.
In addition, the diagonal compression strut crack of unstrenghtened control beams was changed to several diagonal cracks at mid depth within the shear span of the strengthened beams and exhibited more ductile failure mode.
American Psychological Association (APA)
Sarsam, Qays Fuad& al-Bayati, Nabil Abd al-Majid Jaddu& Muhammad, Ahlam Sadir. 2017. Effect of shear span-depth ratio on shear strength of porcelanite lightweight aggregate reinforced concrete deep beams strengthened by externally bonded CFRP strips. Engineering and Technology Journal،Vol. 35, no. 3A, pp.267-275.
https://search.emarefa.net/detail/BIM-770527
Modern Language Association (MLA)
Sarsam, Qays Fuad…[et al.]. Effect of shear span-depth ratio on shear strength of porcelanite lightweight aggregate reinforced concrete deep beams strengthened by externally bonded CFRP strips. Engineering and Technology Journal Vol. 35, no. 3A (2017), pp.267-275.
https://search.emarefa.net/detail/BIM-770527
American Medical Association (AMA)
Sarsam, Qays Fuad& al-Bayati, Nabil Abd al-Majid Jaddu& Muhammad, Ahlam Sadir. Effect of shear span-depth ratio on shear strength of porcelanite lightweight aggregate reinforced concrete deep beams strengthened by externally bonded CFRP strips. Engineering and Technology Journal. 2017. Vol. 35, no. 3A, pp.267-275.
https://search.emarefa.net/detail/BIM-770527
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 274-275
Record ID
BIM-770527