Use of 0.7-in. Diameter Strands in Precast Pretensioned Girders
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.
This Summary Last Modified On: 8/2/2022