Numerical model to simulate the non-linear shear behaviour of RC elements

Abstract

Seismic assessment of RC structures requires realistic and simple analytical models. In this paper is presented the model proposed and implemented in the program PORANL, to represent the RC buildings behaviour under severe earthquake loading. The response of RC elements to earthquake loads can be controlled by bending or shear behaviour, depending on the geometrical characteristics of the elements and on the reinforcement detailing. To represent the non-linear shear behaviour of RC elements, it was developed and implemented in the PORANL software a simplified model. In this paper is presented the proposed shear model and the results of its calibration based on tests on a full-scale building frame structure.