CSI Software calculates prestress loss according to the friction and anchorage loss parameters specified. Losses from elastic shortening and long-term effects, including creep, shrinkage, and relaxation, are computed for tendons which are modeled as objects, and may be specified for those modeled as loads.

Overview

The prestress losses which may be accounted for within SAP2000 include the following:

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• Choudry, D. Analysis of Curved Nonprismatic Reinforced and Prestressed Concrete Box Girder Bridges, Berkeley: University of California, Berkeley, 1987. Print.

• Ceb-Fip Model Code 1990, Telford, 1993. Print.