In an external prestressing system, there is no strain compatibility between the cable and the concrete at every cross-section, the increment of cable strain must be evaluated by taking into account the whole structure, rather than performing the calculation at each section, independently. In this study, a method for the calculation of cable strain, which is based on the deformation compatibili...

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, st...

Advances in the fields of polymers and composites have resulted in a major development of high strength fibre reinforced polymers (FRP). These materials offer great potential for cost-effective retrofitting of concrete structures. In response to the growing need for concrete repair and rehabilitation, an experimental program was conducted at the University of Manitoba in Winnipeg, Manitoba, Can...

Several of the texts on prestressed concrete illustrate the magnitude of the effect of prestressing on the concrete by using a fishing pole as an example. As I recall the fishing pole described, it consists of a length of concrete one inch square in section with a single wire pretensioned through and along its central axis. Not until I was to witness the behavior of the massive precast, postten...