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Instrumentation and Evaluation of Prestressed Pavement, U.S. 220, Blair County, Pennsylvania
A major study has been performed to monitor performance of a prestressed post-tensioned concrete pavement constructed in November-December 1988 in Blair County, Pennsylvania. Analysis was made of pavement length changes, prestress levels for cross sections for a range of distances from slab ends, and load-stress response of the pavement. During the load testing done in August 1989, pavement stresses were determined from measured pavement strains at prestressed slab edges and inward from edges. Slab stresses were also evaluated using the JSLAB finite element computer program. Stresses of the prestressed pavement as determined from strain measurements were less than those predicted using the finite element analysis. Inspection of pavements were made during construction and subsequent to construction to monitor visual indicators of pavement performance. Transverse cracks in some prestressed slabs were observed to occur after installation of tied shoulders.
Instrumentation and Evaluation of Prestressed Pavement, U.S. 220, Blair County, Pennsylvania
A major study has been performed to monitor performance of a prestressed post-tensioned concrete pavement constructed in November-December 1988 in Blair County, Pennsylvania. Analysis was made of pavement length changes, prestress levels for cross sections for a range of distances from slab ends, and load-stress response of the pavement. During the load testing done in August 1989, pavement stresses were determined from measured pavement strains at prestressed slab edges and inward from edges. Slab stresses were also evaluated using the JSLAB finite element computer program. Stresses of the prestressed pavement as determined from strain measurements were less than those predicted using the finite element analysis. Inspection of pavements were made during construction and subsequent to construction to monitor visual indicators of pavement performance. Transverse cracks in some prestressed slabs were observed to occur after installation of tied shoulders.
Instrumentation and Evaluation of Prestressed Pavement, U.S. 220, Blair County, Pennsylvania
P. A. Okamoto (author) / S. D. Tayabji (author) / E. J. Barenberg (author)
1991
272 pages
Report
No indication
English
Highway Engineering , Construction Equipment, Materials, & Supplies , Concrete pavements , Prestressed concrete , Stress analysis , Pavement tests , Concrete construction , Strain gages , Concrete slabs , Pavement strength , Pavement condition , Strains , Displacement , Loads(Forces) , Strain measurement , Curl(Materials) , Shrinkage , Blair County(Pennsylvania)
Instrumentation and Evaluation of Prestressed Pavement Section in Pennsylvania
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