STRAND REINFORCING FOR END CONNECTIONS OF PRETENSIONED I-BEAM BRIDGES

The behavior of end connections for prestressed I-beam bridges was studied and the results of the study are presented in this report. This work represents an interim report on a study of end conditions for prestressed I-beam bridges and deals specifically with the feasibility of using embedded prestressing strand to develop positive moment continuity of prestressed precast I-beam members. Bent strand connections were evaluated by both analytical and experimental methods to determine the feasibility of using prestress strand to develop positive moment continuity. Six full-scale bent strand connections were designed, fabricated and tested. The two primary variables considered in the connection tests were number and embedment length of the prestress strand. An analysis was developed from which a working stress design procedure with an ultimate strength check was developed. Using this procedure, bent strand can be used to develop a satisfactory degree of positive moment continuity for precast prestressed I-beam bridge superstructures. /FHWA/

  • Supplemental Notes:
    • Notice of NTIS Number Pending.
  • Corporate Authors:

    University of Missouri, Columbia

    1205 University Avenue
    Columbia, MO  USA  65201
  • Authors:
    • May, G W
  • Publication Date: 1974-5

Media Info

  • Pagination: 142 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00265043
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: 73-5B Intrm. Rpt
  • Files: TRIS, USDOT
  • Created Date: Jan 9 1975 12:00AM