ULTIMATE FLEXURAL STRENGTH OF CONCRETE MEMBERS PRESTRESSED WITH UNBONDED TENDONS

The test results of 26 concrete beam specimens prestressed with unbonded tendons and reinforced with and without ordinary reinforcing steel are described. Several parameters and their effect on the magnitude of stress in the prestressing steel f sub ps at nominal flexural strength of the members were examined. The experimental results indicated that increasing the span-to-depth ratio from 8 to 20 resulted in a drop in the measured stress results by about 35%. On the other hand, the effect of load application was found insignificant. The experimental results were combined with extensive experimental data reported in the technical literature and used to develop a general design equation for f sub pm.

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00617865
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 31 1991 12:00AM