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A B S T R A C T The external post-tension technique is one of the best strengthening methods for reinforcement and improvement of the various steel structures and substructure components such as beams. In the present work, the load carrying capacity of the post-tensioned tapered steel beams with external shape memory alloy (SMA) tendons were studied. 3D nonlinear finite element method with ABAQUS software is used to determine the effects of the increase in the flexural strength, and thedoi:10.5829/ije.2021.34.04a.04 fatcat:znc7qdvt6nadhb6du4ouutauoy