Finite element modelling of a hybrid unreinforced masonry-reinforced concrete wall

Abstract

The combination of Unreinforced Masonry (URM) and Reinforced Concrete (RC) walls is widely used as bracing system in several countries. This paper deals with the implementation of a numerical model in a commercial finite element software package. The calibration process is described. The objective is to enhance the knowledge of the structural performance of mixed URM-RC systems and, in a subsequent stage, to optimise their design. In this study, we focus on the lateral bracing resistance under statically applied loads. The present numerical campaign fits within a larger project, which aims at optimising the general design of hybrid URM-RC solutions (i.e. the proportion of concrete vs. masonry) as well as the connections used in these hybrid solutions. The long-term objective of the project is the optimisation of the overall lateral load-bearing system.