Modification of strut effectiveness factor for reinforced concrete deep beams strengthened with CFRP laminates
This paper proposes a method to modify the strut effectiveness factor in the strut-and-tie model for CFRP-strengthened reinforced concrete deep beams. Two groups of deep beams comprising six ordinary reinforced concrete deep beams and six CFRP-strengthened reinforced concrete deep beams were experim...
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| Main Authors: | , , , |
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| Format: | Article |
| Published: |
Consejo Superior de Investigaciones Cientificas (C S I C)
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/34562/ http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/1476 |
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| Institution: | Universiti Putra Malaysia |
| Summary: | This paper proposes a method to modify the strut effectiveness factor in the strut-and-tie model for CFRP-strengthened reinforced concrete deep beams. Two groups of deep beams comprising six ordinary reinforced concrete deep beams and six CFRP-strengthened reinforced concrete deep beams were experimentally tested under the four-point bending configuration. The shear span-to-effective depth ratio of the beams in each group was 0.75, 1.00, 1.25, 1.50, 1.75, and 2.00. The theoretical principal tensile strain in CFRP-strengthened struts was modified based on a proposed empirical relationship, based on two ratios: the experimental to the theoretical value of principal tensile strain and the shear span-to-effective depth of deep beams. |
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