Verformungsberechnung von Mauerwerksscheiben: Anwendung des klassischen Druckfeldmodells auf Mauerwerk

Deformation calculation of masonry walls: Application of the compression field theory on Masonry.

To calculate the thereby necessary deformations of masonry walls under normal force and shear, empirical relations are available. Depending on the approach, they exhibit scattering in their results and leave much room for interpretation open.
In order to amend this, this paper describes the load deformation behaviour of non-reinforced masonry walls by means of the original compression field model, which is familiar from reinforced concrete. As a basis, it develops a material law for masonry, which takes into account its anisotropic and inhomogeneous properties, and employs fracture conditions, which are based on the theory of plasticity, in order to determine its strength.
To verify this model, selected masonry slab tests from the literature are recalculated with respect to their actual force-deflection behaviour. It is shown that it is possible to evaluate the deformation capacity of masonry without depending on empirical formulas.