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http://dx.doi.org/10.5000/EESK.2009.13.6.001

Shear Strength of Concrete Deep Beam Reinforced AFRP rebar  

Lee, Young-Hak (경희대학교 건축공학과)
Kim, Min-Sook (경희대학교 건축공학과 대학원)
Cho, Jang-Se (경희대학교 건축공학과 대학원)
Kim, Hee-Cheul (경희대학교 건축공학과)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.13, no.6, 2009 , pp. 1-9 More about this Journal
Abstract
This study carried out a shear experiment on concrete deep beam reinforced AFRP to investigate the shear strength of deep beam. The test was conducted on 8 specimens, and the variables were shear span ratio, reinforcement ratio, effective depth, and rebar type. We compared shear strength using ACI 318-08 STM with proposed equations that considered arching action according to shear span ratio. As a result, it was found that shear strength of deep beam reinforced AFRP rebar presented higher shear strength than steel rebar. ACI STM's predictions are more accurate than other predicting equations, and thus this research proposed model versus effective compressive strength of the concrete strut that considered strut size effect based on test results. The predictions obtained using the proposed model are in better agreement than previous equations and codes.
Keywords
AFRP rebar; Deep beam; Shear strength; Strut-tie model; Effective compressive strength of the concrete strut;
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