ABSTRACT
Several empirical formulae were proposed for the practical estimation of the load bearing capacity of masonry walls under buckling. Based on the numerical, analytical, and approximation methods a new empirical formula has been derived which overcomes the existing problems and takes into account the non-linearity of the material. Critical remarks also have been made on the empirical formulae of Eurocode 6 as well, because it does not consider softer types of masonry in some European countries for example Denmark. For masonry with no tensile strength, proposed some empirical equations to estimate the strength capacity of masonry walls based on numerical data generated using simplified micro-models. Although several empirical formulae already exist, there is no clear evidence about their plausibility. The empirical formulae are based on the approximation of an accurate solution by a simple form mathematical expression. For a material model, the empirical formula which is safe on a specific range of slenderness can be unsafe on other range.
