Tochnog Professional


The behavior of a two meters high old masonry brick wall has been investigated. Two numerical simulations are performed: a compression test and a compression-shear test. We use a constitutive law with transverse isotropic elasticity, compression plasticity, tension nonlocal visco-plasticity, Mazars damage model and in order to reproduce the behavior of the mortar joints a directional Mohr-Coulomb model with tension plasticity. To follow the development of the localization zone a locally refined mesh depending on the current value of the variable damage is applied. The input files for these calculations are provided in your distribution.

Literature reference:
J.B. Burland and C.P. Wroth, Settlement of buildings and associated damage, British Geotechnical Society's, Conference on the Settlement of Structures, Cambridge, April 1974, Session 5: Allowable and differential settlement of structures, including damage and soil-structure interaction. Pp. 611-654 (Proceedings).

John Burland, The assessment of the risk of damage to buildings due to tunneling and excavations AN HISTORICAL PERSPECTIVE Jornada Tecnica de Movimientos de Edificios Inducidos por Excavaciones, Barcelona (Spain), 16 de Diciembre de 2008

J. Mazars, D.J. Boerman and G. Piatti, Mechanical damage and fracture of concrete structures, ICF5, Cannes (France), 1981

V. Casella, A. De Sortis, F. Vestroni, Stima del danno in edifici di muratura soggetti a cedimenti, Rivista Italiana di Geotecnica, vol. 1, 9-22 (2012)