The results indicate that the proposed smoothing technique provides better results than the current threepoint moving average technique. The measured transfer lengths were compared to the predicted transfer lengths using ACI 318-14 and AASHTO-LRFD equations. A new technique was developed to smooth the measured concrete surface strains. Transfer lengths were determined by measuring concrete surface strains and using the average maximum strain (AMS) method. The compressive strength at release ranged from 27 to 65 MPa (4000 to 9500 psi). Twenty-four pretensioned concrete beams were cast using conventional concrete. This study reports the measured transfer length of 15.2 mm (0.6 in.) prestressing strands. Abstract : Transfer length is a significant parameter in the design of pretensioned concrete members.
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