![CALCULATING FRICTION AND ANCHOR SET LOSSES IN POST-TENSIONED TENDONS 1 CALCULATING FRICTION AND ANCHOR SET LOSSES IN POST TENSIONED TENDONS](https://excel.civilmdc.com/wp-content/uploads/2021/11/CALCULATING-FRICTION-AND-ANCHOR-SET-LOSSES-IN-POST-TENSIONED-TENDONS.png)
The prestress loss due to elastic shortening in pretensioned members is taken as the concrete stress at the centroid of the prestressing steel at transfer, f cgp, multiplied by the ratio of the modulus of elasticities of the prestressing steel and the concrete at transfer.