The structural assessment of existing monumental structures requires robust and efficient numerical tools, whose complexity and computational demand should be suitable for practical purposes. For these reasons the formulation and validation of simplified numerical strategies constitutes an important research issue in masonry computational research. In this paper the computational performance of an original discrete macro-element modeling approach, relying on the definition of macro-elements, for the simulation masonry structures with curved geometry is investigated. The method is based on a new macro-element discretization strategy in which each element interacts with the adjacent elements through zerothickness interfaces and whose internal deformability is related to a simplified kinematics able to account for the shear deformability of the element. The paper is focused on the definition of a plane macro-element suitable for the simulation of the nonlinear behavior of masonry arches. Both experimental and numerical validations show the capability of the proposed approach to be applied for the prediction of the non-linear analysis of masonry arch structures under different loading conditions.
|Titolo:||A parsimonious discrete modeling approach for the structural assessment of curved geometry masonry structures|
|Data di pubblicazione:||2017|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|