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Scipediacontent moved page Draft Content 466960571 to Grillanda et al 2021a

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== Abstract ==

An efficient computational tool for the local failures analysis in historical masonry
aggregates is proposed. A NURBS (Non-Uniform Rational B-Spline) representation of
geometry is adopted. NURBS entities, which are common in commercial CAD packages, have
the great advantage to describe complex geometries (such as curved elements and walls with a
high number of holes) with very few elements. An upper bound limit analysis formulation is
implemented, in which the adopted NURBS elements are idealized as rigid bodies with
dissipation allowed only along interfaces. The mesh of NURBS elements is progressively
adjusted through a genetic algorithm in order to minimize the live load multiplier. This
procedure is applied in the evaluation of the horizontal load multiplier associated with the
activation of local mechanisms during a seismic event. Some case studies, referring to masonry
aggregates located in the historical centers of Arsita (Abruzzo region, Italy) and Sora (Lazio
region, Italy), are here presented. A quick evaluation of the seismic vulnerability is performed
through the presented NURBS-based computational tool, showing the high importance of the
local response in the study of the seismic behavior of masonry aggregates.

== Full document ==
<pdf>Media:Draft_Content_466960571p649.pdf</pdf>
== References ==

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Scipediacontent: Scipediacontent moved page Draft Content 466960571 to Grillanda et al 2021a

Scipediacontent: Created page with "== Abstract == An efficient computational tool for the local failures analysis in historical masonry aggregates is proposed. A NURBS (Non-Uniform Rational B-Spline) represen..."