Modeling error of strength of short reinforced concrete columns

Probabilistic analyses of the modeling errors of several selected strength prediction models for short reinforced concrete (RC) columns are carried ou t. The selected strength models include the rectangular stress block model and the stress-strain relation-based theoretical model. A relatively large amount of test data ori RC columns is collected from the literature, and th e test results are compared with the predicted ones obtained from different strength models. Both normal- and high-strength concrete columns are inclu ded in this study. The dependency of the modeling errors on concrete compre ssive strength and the load eccentricity is investigated. Probabilistic ana lyses of the modeling errors are carried out by using the pseudolikelihood estimation method Sets of probabilistic models of the modeling errors by co nsidering different analysis approaches are suggested for short RC columns.