NELSON D. AGÜERA1, MIGUEL E. TORNELLO2, CARLOS D. FRAU3

1 CeReDeTeC, Department of Civil Engineering, National Technological University Regional Faculty Mendoza, Rodriguez 273, Mendoza, Argentina. 5500, E-mail: naguera@frm.utn.edu.ar

2 CeReDeTeC, Department of Civil Engineering, National Technological University Regional Faculty Mendoza, Rodriguez 273, Mendoza, Argentina. 5500, E-mail: mtornell@frm.utn.edu.ar

3 CeReDeTeC, Department of Civil Engineering, National Technological University Regional Faculty Mendoza, Rodriguez 273, Mendoza, Argentina. 5500, E-mail: cdfrau@frm.utn.edu.ar

To determine the structural response of buildings built with unreinforced masonry, it is necessary to have information of the mechanical properties of the masonry. Other procedures are possible, for example through the study of finite element models that allow us to predict structural response successfully to different actions. The objective of this paper is to evaluate the behavior of walls of unreinforced masonry under axial and horizontal loading with displacement controlled. It used a micro-modeling continuous homogeneous elements, are defined constitutive laws the bricks and mortars using two constitutive models of plasticity and damage. It presents the results of the analysis using the algorithm of the program Abaqus. The responses of the models of walls were obtained in terms of load and displacement for both constitutive models and for different thicknesses of the walls. The results the two constitutive models used show similarities in the forms of the response curves, however the values of last capabilities presented variations averages 30 %.

Keywords: Plasticity Models, Unreinforced Masonry, Structural Capacity