Details of the Study on the Use of 0.7-in Diameter Strands in Precast Pretensioned Girders

National Academies of Sciences, Engineering, and Medicine

doi:10.17226/26676

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Details of the Study on the Use of 0.7-in Diameter Strands in Precast Pretensioned Girders

(2022)

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The use of precast pretensioned girders using 0.7-in. diameter strands would help bridge designers extend the spans of the existing girder shapes.

The TRB National Cooperative Highway Research Program's NCHRP Web-Only Document 315: Details of the Study on the Use of 0.7-in Diameter Strands in Precast Pretensioned Girders is supplemental to NCHRP Research Report 994: Use of 0.7-in. Diameter Strands in Precast Pretensioned Girders.

Contributor(s): National Academies of Sciences, Engineering, and Medicine; Transportation Research Board; National Cooperative Highway Research Program; Richard A. Miller; Bahram M. Shahrooz; Kent A. Harries; Reid W. Castrodale

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National Academies of Sciences, Engineering, and Medicine. 2022. Details of the Study on the Use of 0.7-in Diameter Strands in Precast Pretensioned Girders. Washington, DC: The National Academies Press. https://doi.org/10.17226/26676.

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161 pages | 8.5 x 11 | DOI: https://doi.org/10.17226/26676

Chapters		skim
Front Matter	i-iv
Appendix A Design Procedure Used for Parametric Study	1-5
Appendix B Summary of Parametric Design Study Cases	6-82
Appendix C Cases with 1 (f ci = f c)	83-83
Appendix D Parametric Study Span Charts	84-103
Appendix E Example Stability Calculations	104-115
Appendix F Generalization of Gergely-Sozen Model	116-118
Appendix G Strut-and-Tie Model	119-119
Appendix H Details of Full-Scale Girders	120-140
Appendix I Concrete Mix Designs for Full-Scale Girders	141-146
Appendix J Procedure for Accelerating Installation of DEMEC Targets	147-149
Appendix K External Instrumentation of Full-Scale Girders	150-152
Appendix L Proposed Revisions to AASHTO LRFD Bridge Design Specifications in T-10 WAI Format	153-153
Appendix M Survey of AASHTO 5.9.4.4.2 Practice	154-156

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