Review of Current Analysis Methodology for Reinforced Concrete Structural Evaluations.

摘要

This report presents an in-depth review of current modeling techniques and nonlinear analysis procedures for reinforced concrete structural evaluations. A detailed discussion is given of numerous mathematical models that have been proposed in the literature for modeling the nonlinear material behavior of concrete and steel and for representing the complex concrete-steel interaction effects. Finite element discretizations of reinforced concrete structures based on discrete, embedded and smeared approaches are described. Special modeling techniques for representing such effects as cracking, crushing, tension stiffening, shear transfer, concrete-steel bond degradation and loss of prestress are discussed in detail. Further, various static and dynamic nonlinear solution procedures are reviewed in terms of solution accuracy and computational efficiency. Numerical examples are presented to demonstrate the extent of variations in analytical predictions that can result when different modeling approaches are used.