• Priyank Kadecha
• Dr. Vishal A. Arekar
• Prof. Elizabth George

Prestressed concrete plays a major role in modern construction. The basic idea behind prestress is to provide counter bending to the concrete element so that the final bending stress at service could be reduced. Prestressing is the allocation of the stresses to the concrete element prior to the external loading. The prestressing in reinforced cement concrete is practiced by stretching the high strength steel and locking it by one or another way, and hence stress is transfered to the concrete. Prestressing can be done in two ways: pre-tensioning and post tensioning. In the present study,the post tension prestressing has been focused. The post tension is carried out after casting and hardening of the concrete by elongating the prestressing steel and anchored it at the ends, (with help of hydraulic jack).In this process the concrete element is subjected to high concentrated stresses at the end. These strsses are directly proportional to the prestressing force applied to the prestressing steel. This paper describes modified procedurre to reduce the end block stresses in prestressed concrete element.

Post tension, modified prestressing system, end block stress

"Modification in freyssinet prestressing system to reduce stress concentration", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 11, page no.549-553, November-2018, Available :http://www.jetir.org/papers/JETIRK006080.pdf

"Modification in freyssinet prestressing system to reduce stress concentration", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 11, page no. pp549-553, November-2018, Available at : http://www.jetir.org/papers/JETIRK006080.pdf