Long-span bridges are often used in environmentally sensitive terrains, water crossings, and in locations with traffic and geometric restrictions.
The TRB National Cooperative Highway Research Program's NCHRP Research Report 994: Use of 0.7-in. Diameter Strands in Precast Pretensioned Girders presents the design methodology for precast pretensioned girders using 0.7-in. diameter strands based on comprehensive analytical and testing programs. The use of 0.7-in. diameter strands would help bridge designers extend the spans of the existing girder shapes.
Supplemental to the report is NCHRP Web-Only Document 315: Details of the Study on the Use of 0.7-in Diameter Strands in PrecastPretensioned Girders.
National Research Council. 2022. Use of 0.7-in. Diameter Strands in Precast Pretensioned Girders. Washington, DC: The National Academies Press. https://doi.org/10.17226/26677.
Chapters | skim | |
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Front Matter | i-x | |
Chapter 1 - Background | 1-26 | |
Chapter 2 - Analytical Research Approaches and Findings | 27-79 | |
Chapter 3 - Experimental Research Approach and Findings Component Tests | 80-102 | |
Chapter 4 - Experimental Research Approach and Findings | 103-140 | |
Chapter 5 - Conclusions and Proposals | 141-145 | |
References | 146-152 |
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