STUDY OF MASONRY MADE OF LARGE-FORMAT CERAMIC STONES WITH A VOIDNESS OF UP TO 57% USING COMPUTER MODELS

The modeling by finite elements of a large-format ceramic stone with slit voids, as well as a fragment of a wall with masonry made of these stones, is considered. The stress-strain state of a fragment of a wall with masonry made of large-format ceramic stones with slit voids was studied using three-dimensional finite element models under local loads. The cases of application of a local vertical load on the upper surface of a wall fragment in the corner, in the middle at the end and in the middle near the center, as well as with an offset from the center to the edge, are considered. Loads of the same intensity were applied in the form of a stamp. As a result of calculations, all components of the stress-strain state were obtained in all these cases. The values of the main tensile stresses in the masonry were determined, and according to the theory of the greatest tangential stresses, the value of the destructive load was determined in each case.