Evaluation and Verification of Finite Element Analytical Models in Reinforced Concrete Members

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In studies on structural members and their analysis, the verification has a special placement. To ensure the accuracy of the results of any analysis, the assurance of the correctness of the modeling is required. In the nonlinear analysis, this problem has more difficulties and the researcher spend a lot of time to considering different modeling elements and determination of their needed parameters for different behavior curves to identify the appropriate model for the research. After this process, the model also needs to verify to ensure that the considered model is suitable or not. This paper presents unified approaches with an acceptable accuracy for modeling the reinforced concrete members including beams, columns, joints and also moment frames to provide them for nonlinear analysis. The details of the elements, the method of determining the properties of the required springs and also needed equations are described and the models are verified in each section based on valid laboratory tests. The presented structure of the elements in this paper can be directly used in any research related to the analysis of reinforced concrete members.

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