A Review Study on Theoretical Comparison Between Time-Dependent Analysis Models for Prestressed Concrete Bridges

Particularly, concrete material involvements creep under a continuous load and practices shrinkage due to variations in humidity proportion. These physical properties growth over time. Prestressed losses according will lead loss of compression strength for concrete. Time-dependent analysis is important essential two types prestressed which are pretensioned posttensioned with the effect time, structural pattern, high erection loads influence performance protection structure duration when complete. Creep main time-dependent parameters They design structures such as bridges. The objective this study review models bridges by using factors equations determine strain parameters. were selected these on Nine methods reviewed study. include ACI-209 model, PCI-BDM CEB-FIP-90 AASHTO-LRDF Shams Kahan NCHRP-496 B3 GL2000 AFREM model. It was recommended that methodology prestresssed bridge comparing between results models.