Article ID Journal Published Year Pages File Type
6748506 International Journal of Solids and Structures 2017 49 Pages PDF
Abstract
This paper is aimed at evaluating dissipation and deformation capacities of frame-masonry shear-wall systems in post-cracking regime. A simple planar model consisting of a cracked masonry shear-wall, containing a centered window, confined on three sides by a portal frame, is formulated. Kinematics is linear and accounts for an “overall shear mode” and “local sliding modes”, these latter describing relative motions among the cracked parts of the wall. A periodic horizontal force, roughly representative of the seismic actions, is acting at the top of the portal frame. An isotropic nonlinear damage law is adopted, and an Extended Galerkin-based variational formulation is followed to derive a low-dimensional discrete system. An ad-hoc resolution algorithm, based on a predictor-corrector scheme, is implemented, and numerical results discussed.
Related Topics
Physical Sciences and Engineering Engineering Civil and Structural Engineering
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