The behavior of steel beams prestressed with high-strength steel tendon and compositely connected to a concrete deck is analyzed. The deflection and the strains in the steel beam, concrete deck, and tendons are calculated in the positive and negative bending moment regions over the full range of loading to failure. The composite beam types considered are as follows: conventional composite beam without prestressing tendon; composite beam with tendons anchored at the ends, but not prestressed; and composite beam with tendons prestressed. The load deflection and the load-strain behavior of these beams are compared. The study showed that adding a tendon significantly increases the ultimate load. Prestressing the tendon increases the yield load but not the ultimate load. Prestressing in the negative moment region increases the load at which the concrete cracks.

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  • Accession Number: 00488817
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 31 1989 12:00AM