https://enpc.hal.science/hal-00688642Stefanou, IoannisIoannisStefanoumsa - Matériaux et Structures Architecturés - navier umr 8205 - Laboratoire Navier - IFSTTAR - Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux - ENPC - École des Ponts ParisTech - CNRS - Centre National de la Recherche ScientifiqueSection of Mechanics - NTUA - National Technical University of Athens [Athens]Psycharis, IoannisIoannisPsycharisLEE - Laboratory of Earthquake Engineering - NTUA - National Technical University of Athens [Athens]Georgopoulos, Ioannis-OrestisIoannis-OrestisGeorgopoulosSection of Mechanics - NTUA - National Technical University of Athens [Athens]Dynamic response of reinforced masonry columns in classical monumentsHAL CCSD2011Masonry3D dynamic analysisMulti-drum columnsFractured drumsRockingWobblingDistinct Element Method (DEM)Restoration processMarble-cement interfaceDirect shear tests[SPI.MECA] Engineering Sciences [physics]/Mechanics [physics.med-ph]Stefanou, IoannisMechanics of Energy Dissipation in Dense Granular Materials - MEDIGRA - - EC:FP7:ERC2008-11-01 - 2011-10-31 - 228051 - VALID - 2012-04-18 10:47:272023-08-07 15:22:082012-04-18 10:47:27enJournal articles10.1016/j.conbuildmat.2010.12.0421From the mechanical point of view, the particularity of masonry structures stems from the fact that the structural system is hard to be modeled by the classical Continuum Mechanics approach. The problem gets more complicated when imperfections, such as cracks are present. An example of a single multi-drum column, with fractured drums, is studied herein, using the Distinct Element Method (DEM). The purpose of the research is the investigation of the impact of the fractures to the overall stability of the structure. The 3D DEM numerical results are explained on the basis of simple 2D analytical considerations. The shear and normal crack deformation is monitored and the minimum required strength of the crack interface is quantified. An experimental program of direct shear tests is set in order to estimate the strength of the marble-cement interface. The experimental values are compared to the minimum required from the numerical analysis.