The plastic hinge length prediction of RC members by using ANN

Abstract

For many years, plastic hinges have been a very interesting and complex topic for researchers and engineers due to plastic deformations. Nonetheless, both standards and empirical relations are insufficient to determine the length of plastic hinges attached to concrete flexural elements. This study aims to analyze studies and formulas used for the calculation of plastic hinges in reinforced concrete (RC) columns and RC sheer walls. In addition, the study also evaluated the effect of plastic hinge behavior on other structural members. The study also evaluated plastic hinge length formulas and plastic hinge formulas of flexure elements either created with numerical modelling or presented with numerical models supported by empirical data. In addition, the data for columns and/or shear walls included in the literature have been evaluated in order to develop a unique formula that anticipates the length of plastic hinges of columns and/or shear walls. In this study, the use of Levenberg-Marquardt Algorithm based on artificial neural network (ANN) models in estimating the plastic hinge length of columns and shear walls was investigated. It was observed that the R 2 values of the model outputs are greater than 0.98. It has been determined that the developed ANN model is a practical and useful method for estimating the plastic hinge length of columns and shear walls, both.

Effect of Steel Fiber on Plastic Hinge Length of Concrete Columns: Buckingham Theory Application

“…Meanwhile, predicting the length of a plastic hinge is difficult because it depends on the characteristic parameters of the concrete and reinforcement. This plastic hinge is an interesting topic for engineers because of plastic deformation [7]. The deformation causes rotation due to shear forces or bending moments.…”