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Computers and Concrete
  Volume 9, Number 5, April 2012, pages 357-374

Viscoelastic behaviour of non-homogeneous variable-section beams with post-poned restraints
Alessandra Fiore, Pietro Monaco and Domenico Raffaele

Abstract     [Full Text]
    The aim of this paper is to develop a procedure able to calculate the long-term stress and strain patterns in modern prestressed composite structures which are largely influenced by creep and shrinkage and whose final static configuration is the result of many phases of loading and restraints conditions. The introduction of equivalent moduli, depending on the viscous and elastic features of materials, can guarantee a significant simplification of the problem presented above. The proposed calculation model has been used to design the
Key Words
    prestressed composite structures; creep; shrinkage; variation of static schemes; long term effects; equivalent moduli.
Alessandra Fiore, Pietro Monaco and Domenico Raffaele: Politecnico di Bari, Department of Civil and Environmental Engineering, Via Orabona 4, 70125 Bari, Italy

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