CYCLIC SHEAR TESTS ON URM AND STRENGTHENED MASONRY WALLS AND ITS MODELLING
In this paper some experimental and numerical results pertaining to unreinforced masonry walls and its components are presented. This is the first phase of the joint project to be implemented by the Faculty of Civil Engineering, University of Sarajevo and the Institute for Lightweight Structures and Conceptual Design, University of Stuttgart. Testing methods for solid clay brick, lime-cement mortar, wallet compressive and shear strength and elastic modulus follow national standards and European norms. Full scale tests of the unreinforced masonry walls were conducted at the Institute for Materials and Structures, Faculty of Civil Engineering in Sarajevo. Numerical modelling concerns prism compression test and full scale masonry wall exposed to vertical and horizontal forces. Snap-back instabilities due to brick-mortar mechanical and geometrical mismatch are tackled as well. In the second phase it is planned to apply several strengthening methods and to compare the wall behaviour with the unreinforced one. The main goal of the research project is to investigate the influence of the different strengthening methods on the structural behaviour of originally unconfined masonry walls under cyclic horizontal loading.