Short-Term Elongation Variation of Posttensioned Tendons

Abstract

When tension is applied to steel tendons, they elongate in proportion to the tensile force, as predicted by Hooke’s law. This elongation is used by the South African standard on concrete structural works and the South African standard specification for road and bridgeworks to determine the adequacy of the force applied in a tendon. The standards prescribe an elongation variation limit of