Behaviour of Masonry Walls under Horizontal Shear in Mining Areas

[摘要] The paper discusses behaviour of masonry walls constructed with small-sized elements under the effects of mining activity. It presents some mechanisms of damage occurring in such structures, its forms in real life and the behaviour of large fragments of masonry walls subjected to specific loads in FEM computational models. It offers a constitutive material model, which enables numerical analyses and monitoring of the behaviour of numerical models as regards elastic-plastic performance of the material, with consideration of its degradation. Results from the numerical analyses are discussed for isolated fragments of the wall subjected to horizontal shear, with consideration of degradation, impact of imposed vertical load as well as the effect of weakening of the wall, which was achieved by introducing openings in it, on the performance and deformation of the wall.

[发布机构] Building Research Institute, Warsaw, Poland^1;Silesian University of Technology, Gliwice, Poland^2;Katowice School of Technology, Katowice, Poland^3

[关键词] Computational model;Constitutive materials;Elastic-Plastic;Horizontal shear;Masonry walls;Mining activities;Specific loads;Vertical load