A dry block masonry continuum model for the in-plane analysis of shear walls is considered. The effects of the block geometry and assembly on the inelastic strain mechanisms are taken into account by means of proper constitutive equations. Both the incipient inelastic strain mechanisms and the subsequent incremental ones, which depend on the active inelastic strain, are considered. The stress and strain states are proved to be the leading internal field variables governing the limiting surface evolution. The proposed constitutive model is applied to the analysis of masonry walls by means of a finite element procedure. The specialized algorithm, developed for the integration of the stress - strain relationships in the finite load step, is synthetically shown.
Dry block assembly continuum modelling for the in-plane analysis of shear walls
ALPA, GIOVANNI;GAMBAROTTA, LUIGI;MONETTO, ILARIA
1998-01-01
Abstract
A dry block masonry continuum model for the in-plane analysis of shear walls is considered. The effects of the block geometry and assembly on the inelastic strain mechanisms are taken into account by means of proper constitutive equations. Both the incipient inelastic strain mechanisms and the subsequent incremental ones, which depend on the active inelastic strain, are considered. The stress and strain states are proved to be the leading internal field variables governing the limiting surface evolution. The proposed constitutive model is applied to the analysis of masonry walls by means of a finite element procedure. The specialized algorithm, developed for the integration of the stress - strain relationships in the finite load step, is synthetically shown.
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