Effect of column rectangularity on CFRP-strengthened RC flat plates

Date

2011-07-01

Author

ERDOĞAN, HAKAN
Binici, Barış
Ozcebe, Guney

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This study presents experimental and analytical research that focused on the behaviour of carbon-fibre-reinforced polymer (CFRP)-strengthened flat-slab specimens for punching shear enhancement. Seven 0.75-scale flat-slab specimens representing interior slab-column connections with different column aspect ratios varying from 1 to 3 were tested. The results revealed that increasing column rectangularity had a detrimental effect on column punching strength of all specimens. A strength increase of at least 30% was obtained for the CFRP retrofitted specimens compared with the companion reference specimen. Three-dimensional finite-element models were successful in providing reasonable estimates of load-deformation behaviour and strains. Based on these results, CFRP strains at failure and the punching failure mechanism are discussed.

Subject Keywords

Stud-shear reinforcement, Punching shear, Concrete slabs, Moment transfer, Connections

URI

https://hdl.handle.net/11511/46049

Journal

MAGAZINE OF CONCRETE RESEARCH

DOI

https://doi.org/10.1680/macr.2011.63.7.511

Collections

Department of Civil Engineering, Article

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Citation Formats

H. ERDOĞAN, B. Binici, and G. Ozcebe, “Effect of column rectangularity on CFRP-strengthened RC flat plates,” MAGAZINE OF CONCRETE RESEARCH, pp. 511–525, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46049.