vol28no1pa8

TJES: Abdulrahman M , Salih S , Abduljabbar R , .The Assessment of Using CFRP to Enhance the Behavior of High Strength Reinforced Concrete Corbels . Tikrit Journal of Engineering Sciences 2021; 28(1): 71- 83.

APA: Abdulrahman M , Salih S , Abduljabbar R , . (2021). The Assessment of Using CFRP to Enhance the Behavior of High Strength Reinforced Concrete Corbels . Tikrit Journal of Engineering Sciences, 28 (1), 71- 83.

References

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Tikrit Journal of Engineering Sciences (2021) 28(1) 71- 83.

The Assessment of Using CFRP to Enhance the Behavior of High Strength Reinforced Concrete Corbels

Mazin .. Abdulrahman *1 Shakir .. Salih 2 Rusul ..Abduljabbar 3

0 Civil Engineering Department/Engineering College/Tikrit University/Tikrit, Iraq

1 Civil Engineering Department / University of Technology / Baghdad, Iraq.

2 Civil Engineering Department/Engineering College/Tikrit University/Tikrit, Iraq

* Corresponding author: dr.mazinburhan@tu.edu.iq  

DOI: http://doi.org/10.25130/tjes.28.1.08

Abstract

In this research, an experimental study is conducted to investigate the behavior and strength of high strength reinforced concrete corbels externally bonded with CFRP fabric sheets and Plates with different patterns taking into account the effect of adopted variables in enhancing the ultimate strength; the effect of shear span to effective depth (a/d), configuration, type and amount of bonding. Eleven high strength reinforced corbels were cast and tested under vertical loads. Test results showed there was an improvement in the behavior and load carrying capacity of all strengthened corbels. An increasing in the ultimate strength of strengthened corbel by inclined CFRP strips reached to (92.1%) while the increasing reached to (84.21%) for using one horizontal CFRP Plates compared to un-strengthened reference specimen. Also, it can be conducted that the increase of (a/d) ratio from (0.6 to 0.8) resulted in decreasing by 21.05% in ultimate load capacity of corbels and from (0.4 to 0.6) by 31.25% and 58.69% in cracking and ultimate loads respectively.

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Keywords: High Strength concrete, Carbon Fiber Reinforced Polymer (CFRP), CFRP Plates

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