Creep and Shrinkage of Structural Concrete Sections


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Title: Creep and Shrinkage of Structural Concrete Sections

Author(s): M. R. Resheidat

Publication: Special Publication

Volume: 117


Appears on pages(s): 251-266

Keywords: box beams; bridges (structures); computer programs; creep properties; performance; post-tensioning; prestressed concrete; reinforced, concrete; serviceability; shrinkage; strains; stresses; structural design; Structural Research

Date: 10/1/1989

Internal algorithms for creep and shrinkage when substituted by approximate algebraic equations lead to the adoption of a computational procedure substantially independent of linear equations adopted in the time-dependent prediction model. Presented herein are the numerical results of stresses and strains of reinforced and post-tensioned concrete bridge box-sections where creep and shrinkage are considered. Field measurements of deformations have been recorded and compared with the corresponding numerical results obtained by utilizing a computer program. Results are presented in a graphical form. It may be concluded that the computer method is a convenient tool for describing the behavior of structural concrete sections considering creep and shrinkage in connection with performance and service ability.