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Long-term behaviour of composite slabs prestressed with ubonded tendons

Research output: Contribution to journalArticleScientificpeer-review


Original languageEnglish
JournalVTT Tiedotteita - Valtion Teknillinen Tutkimuskeskus
Issue number1778
Publication statusPublished - 1996
Externally publishedYes
Publication typeA1 Journal article-refereed


Mechanical modelling of post-tensioned steel-concrete composite slabs with unbonded tendons is discussed. The model was added as an option to COMPCAL, a finite element program developed at Ecole polytechnique fédérale de Lausanne, Switzerland. The work focused on the long-term behaviour of composite slabs in the serviceability limit state. Therefore, special attention was paid to the effects of creep and shrinkage of the concrete, and to those of relaxation of the prestressing steel. As an example, an analysis for a two-span slab was carried out.

ASJC Scopus subject areas


  • Composite structures, Concrete construction, Concrete slabs, Creep properties, Finite element analysis, Prestressing steels, Relaxation (mechanics), Shrinkage, Slabs, Steel construction, Steels, Strains, Stresses, Tendons, Unbonded tendons