A practical solution to improve transfer bond in pretensioned prestressed concrete beams

Abstract

Pretensioned prestressed concrete is a popular and challenging construction technique to produce precast beams. This type of construction is governed by the effectiveness of the bond between prestressing steel and concrete which will determine the proper anchorage of the prestressing steel. The anchorage requirements of such a beam, is twofold. At the service stage transfer bond dictates the design while at the ultimate stage both transfer and flexural bond are important. The subject area of this research focuses on the transfer bond and the length of the beam associated with it known as the transfer length.