0000000000027294

AUTHOR

Carlo Cappello

showing 2 related works from this author

A Viscoelastic Model for the Long-Term Deflection of Segmental Prestressed Box Girders

2017

Most of segmental prestressed concrete box girders exhibit excessive multidecade deflections unforeseeable by past and current design codes. To investigate such a behavior, mainly caused by creep and shrinkage phenomena, an effective finite element (FE) formulation is presented in this article. This formulation is developed by invoking the stationarity of an energetic principle for linear viscoelastic problems and relies on the Bazant creep constitutive law. A case study representative of segmental prestressed concrete box girders susceptible to creep is also analyzed in the article, that is, the Colle Isarco viaduct. Its FE model, based on the aforementioned energetic formulation, was succ…

TAComputational Theory and MathematicsCivil and Structural Engineering; Computer Science Applications1707 Computer Vision and Pattern Recognition; Computer Graphics and Computer-Aided Design; Computational Theory and MathematicsComputer Science Applications1707 Computer Vision and Pattern RecognitionComputer Graphics and Computer-Aided DesignCivil and Structural Engineering
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A Viscoelastic Model for the Long-Term Deflection of Segmental Prestressed Box Girders

2017

Most of segmental prestressed concrete box girders exhibit excessive multidecade deflections unforeseeable by past and current design codes. To investigate such a behavior, mainly caused by creep and shrinkage phenomena, an effective finite element (FE) formulation is presented in this article. This formulation is developed by invoking the stationarity of an energetic principle for linear viscoelastic problems and relies on the Bazant creep constitutive law. A case study representative of segmental prestressed concrete box girders susceptible to creep is also analyzed in the article, that is, the Colle Isarco viaduct. Its FE model, based on the aforementioned energetic formulation, was succ…

business.industryComputer scienceConstitutive equation0211 other engineering and technologies020101 civil engineering02 engineering and technologyBuilding and ConstructionStructural engineeringComputer Graphics and Computer-Aided DesignFinite element methodViscoelasticity0201 civil engineeringComputer Science Applicationslaw.inventionPrestressed concreteComputational Theory and MathematicsCreepDeflection (engineering)lawGirder021105 building & constructionbusinessCivil and Structural EngineeringShrinkageComputer-Aided Civil and Infrastructure Engineering
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