A numerical study on seismic performance evaluation of rc rectangular columns strengthened with cfrp sheets
Other Title(s)
دراسة نظرية لتقييم الأداء الزلزالي للأعمدة الخرسانية المسلحة المستطيلة و المقواة بقمصان البوليمرات المسلحة بألياف الكربون
Joint Authors
Ahmad, Abd al-Rahman M.
Farghal, Umar A.
Yusuf, Muna Jamil
Ahmad, Muhammad M.
Source
Journal of Engineering Sciences
Issue
Vol. 48, Issue 5 (30 Sep. 2020), pp.805-829, 25 p.
Publisher
Assiut University Faculty of Engineering
Publication Date
2020-09-30
Country of Publication
Egypt
No. of Pages
25
Main Subjects
Engineering & Technology Sciences (Multidisciplinary)
Topics
Abstract EN
External confinement of reinforced concrete columns using fiber-reinforced polymer (FRP) sheets can significantly enhance their seismic behavior.
This research presents a numerical investigation to evaluate the seismic performance of RC rectangular columns with limited cross-sections' aspect ratios (1, 1.5, and 2) strengthened with a fully wrapped CFRP jacket under constant axial and pushover lateral loads.
Therefore, a three-dimensional finite element model was implemented via ABAQUS software, which has been adopted in this study, where the proposed model showed a reliable agreement with the previous experimental work.
The studied parameters are: longitudinal steel reinforcement ratio, CFRP confinement ratio, and axial load/capacity ratio for each cross-section aspect ratio.
The obtained numerical results have proved that the external wrapping of RC rectangular columns with CFRP sheets has effectively increased drift capacity ratios for cross-sections aspect ratios 1, 1.5, and 2.
Moreover, the strengthening of RC rectangular columns using external CFRP wrapping increases the nominal shear and flexural strengths of the strengthened columns.
Also, the effect of increasing the longitudinal steel reinforcement ratio can significantly decrease the ultimate lateral displacement and drift capacity ratios.
Besides, with the increase of the axial load/capacity ratios, the drift capacity ratios significantly decrease for the strengthened RC rectangular columns.
American Psychological Association (APA)
Yusuf, Muna Jamil& Ahmad, Abd al-Rahman M.& Ahmad, Muhammad M.& Farghal, Umar A.. 2020. A numerical study on seismic performance evaluation of rc rectangular columns strengthened with cfrp sheets. Journal of Engineering Sciences،Vol. 48, no. 5, pp.805-829.
https://search.emarefa.net/detail/BIM-1000319
Modern Language Association (MLA)
Yusuf, Muna Jamil…[et al.]. A numerical study on seismic performance evaluation of rc rectangular columns strengthened with cfrp sheets. Journal of Engineering Sciences Vol. 48, no. 5 (Sep. 2020), pp.805-829.
https://search.emarefa.net/detail/BIM-1000319
American Medical Association (AMA)
Yusuf, Muna Jamil& Ahmad, Abd al-Rahman M.& Ahmad, Muhammad M.& Farghal, Umar A.. A numerical study on seismic performance evaluation of rc rectangular columns strengthened with cfrp sheets. Journal of Engineering Sciences. 2020. Vol. 48, no. 5, pp.805-829.
https://search.emarefa.net/detail/BIM-1000319
Data Type
Journal Articles
Language
English
Notes
-
Record ID
BIM-1000319