Flexural Strengthening of RC Slabs Using a Hybrid FRP-UHPC System Including Shear Connector
Joint Authors
Moon, Jiho
Kim, Jung J.
Reda Taha, Mahmoud M.
Source
Advances in Materials Science and Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-06-05
Country of Publication
Egypt
No. of Pages
7
Abstract EN
A polymeric hybrid composite system made of UHPC and CFRP was proposed as a retrofit system to enhance flexural strength and ductility of RC slabs.
While the effectiveness of the proposed system was confirmed previously through testing three full-scale one-way slabs having two continuous spans, the slabs retrofitted with the hybrid system failed in shear.
This sudden shear failure would stem from the excessive enhancement of the flexural strength over the shear strength.
In this study, shear connectors were installed between the hybrid system and a RC slab.
Using simple beam, only positive moment section was examined.
Two full-scale RC slabs were cast and tested to failure: the first as a control and the second using this new strengthening technique.
The proposed strengthening system increased the ultimate load carrying capacity of the slab by 70%, the stiffness by 60%, and toughness by 128%.
The efficiency of shear connectors on ductile behavior of the retrofitted slab was also confirmed.
After the UHPC top is separated from the slab, the shear connector transfer shear load and the slab system were in force equilibrium by compression in UHPC and tension in CFRP.
American Psychological Association (APA)
Moon, Jiho& Reda Taha, Mahmoud M.& Kim, Jung J.. 2017. Flexural Strengthening of RC Slabs Using a Hybrid FRP-UHPC System Including Shear Connector. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-7.
https://search.emarefa.net/detail/BIM-1124056
Modern Language Association (MLA)
Moon, Jiho…[et al.]. Flexural Strengthening of RC Slabs Using a Hybrid FRP-UHPC System Including Shear Connector. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-7.
https://search.emarefa.net/detail/BIM-1124056
American Medical Association (AMA)
Moon, Jiho& Reda Taha, Mahmoud M.& Kim, Jung J.. Flexural Strengthening of RC Slabs Using a Hybrid FRP-UHPC System Including Shear Connector. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-7.
https://search.emarefa.net/detail/BIM-1124056
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1124056