Title: Bond Characteristics of Pretensioned Strand

Author(s): Homayoun G. Abrishami and Denis Mitchell

Publication: Materials Journal

Volume: 90

Issue: 3

Appears on pages(s): 228-235

Keywords: bond (concrete to reinforcement); bond stress; flexural strength; prestressing steels; pretensioning; strain; pullout tests; stress transfer; Materials Research

DOI: 10.14359/3785

Date: 5/1/1993

Abstract:
A new approach for studying bond characteristics of pretensioned strand along the transfer length and the flexural bond length is presented. The key feature of this method is the determination of average bond stresses in a more direct manner, from measured forces in the strand rather than from strains measured on the strand or on the concrete in beam specimens. The loading technique enables the complete bond stress versus slip response to be determined, including the post-peak response.