A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Assessment of Stresses in Post-Tensioned Concrete Bridges
Abstract This paper presents the results of trials carried out on a post-tensioned concrete six-cell box structure to determine the in-situ stress levels. The techniques used were based on the stress-relief which occurs during the removal of concrete cores and the re-establishment of the stress fields using a novel jacking technique. The estimated stresses were compared with those predicted using a finite element analysis and a good correlation was obtained. The measured stresses generally ranged between 6 and 9 N/mm2 although local variations were observed. The elastic constants for the concrete were assessed using the results of the jacking tests and laboratory compression tests.
Assessment of Stresses in Post-Tensioned Concrete Bridges
Abstract This paper presents the results of trials carried out on a post-tensioned concrete six-cell box structure to determine the in-situ stress levels. The techniques used were based on the stress-relief which occurs during the removal of concrete cores and the re-establishment of the stress fields using a novel jacking technique. The estimated stresses were compared with those predicted using a finite element analysis and a good correlation was obtained. The measured stresses generally ranged between 6 and 9 N/mm2 although local variations were observed. The elastic constants for the concrete were assessed using the results of the jacking tests and laboratory compression tests.
Assessment of Stresses in Post-Tensioned Concrete Bridges
Brookes, C. L. (author) / Buchner, S. H. (author) / Mehrkar-Asl, S. (author)
Bridge Management ; 439-446
1990-01-01
8 pages
Article/Chapter (Book)
Electronic Resource
English
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