Abstract
The capacity of concrete in carrying tension between two cracks is defined as tension stiffening. This paper presents the development and validation of tension stiffening model for finite element analysis (FEA) of glass fiber reinforced polymer (GFRP) reinforced concrete beams. The model was derived from an existing model for steel reinforced members using the same strain energy density. The proposed model was employed in a commercial finite element analysis program. The FEA results were compared with the test results in terms of load-deflection behavior, crack patterns, ultimate loads. It was observed that the proposed tension stiffening model was capable of predicting load deflection of shear critical GFRP reinforced concrete beams with reasonable degree of accuracy.
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