Abstract
The difficulty in calculating masonry structures lies in taking into account the anisotropic properties of masonry. This problem is particularly acute when analyzing the VAT of historical stone structures during the examination of their technical condition. This article provides an analysis of the vaulted ceiling of the mansion, built in the first half of the XVIII century. For numerical modeling of brickwork, a bilinear model of the material with isotropic hardening can be applied. It is the simplest in practical application, but only one limiting resistance is taken into account in this model. Therefore, for the calculation of stone structures, it was proposed to use a nonlinear Rankine material model, which takes into account the different behavior of masonry under tension and compression, including softening. The article presents the results of numerical modeling of brickwork with different models of materials. The comparison and evaluation of the structural strength were carried out.
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