Abstract

Reinforced concrete (RC) structures with no seismic projection are vulnerable to earthquakes. To prevent catastrophic failures, strengthening seismically deficient structures is a significant option. However, the strengthening process starts by understanding and simulating the behavior of not only the RC members but also frames. The under- or overestimation of the capacity in terms of both loading and displacement may lead economical and vital loss. There are several modeling methods for RC members and frames that may confusion. In this study, a tested RC frame was analytically modeled in 2D and frames behavior under cyclic loading was calculated using different modeling techniques. An open-source structural analysis software, OpenSees, is used for both modeling and analysis. The calculation of the analyses and results from experiments were compared to determine the most efficient modeling technique. The result of this comparison may provide a guidance for the engineers to calculate the lateral behavior RC frames under cyclic loading.

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