000021608 001__ 21608
000021608 005__ 20170622131254.0
000021608 04107 $$aeng
000021608 046__ $$k2017-06-15
000021608 100__ $$aChiozzi, Andrea
000021608 24500 $$aFAST KINEMATIC LIMIT ANALYSIS OF MASONRY WALLS WITH OUT-OF-PLANE LOADING

000021608 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021608 260__ $$bNational Technical University of Athens, 2017
000021608 506__ $$arestricted
000021608 520__ $$2eng$$aMasonry structures represent one of the commonest structural typologies for buildings worldwide. In particular, masonry walls constitute, by far, the prevailing elementary structural unit in the majority of masonry constructions both modern and historical. This contribution validates an approach proposed by the authors for the limit analysis masonry vaults, now extended to a new general procedure for the structural assessment of masonry walls with out-of-plane loading based on an upper bound formulation. A given masonry panel of arbitrary form possibly with openings is described through its NURBS (Non-Uniform Rational B-Spline) parametric representation in the three-dimensional Euclidean space. An initial set of rigid elements subdividing the original wall geometry is identified through the definition of a suitable lattice of nodes. An upper-bound limit analysis formulation, taking into account the main characteristics of masonry material through homogenization, is deduced where internal dissipation is allowed along element edges only. As shown in a number of examples, a good estimate of the collapse load is obtained, provided that the initial net of yield lines is suitably adjusted by means of a Genetic Algorithm (GA).

000021608 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021608 653__ $$aLimit analysis, Masonry, Masonry walls, NURBS.

000021608 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021608 720__ $$aChiozzi, Andrea$$iTralli, Antonio$$iGrillanda, Nicola$$iMilani, Gabriele
000021608 8560_ $$ffischerc@itam.cas.cz
000021608 8564_ $$s608644$$uhttps://invenio.itam.cas.cz/record/21608/files/17224.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS27] Advanced numerical methods for historical masonry monuments preservation in seismic zone
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000021608 962__ $$r21500
000021608 980__ $$aPAPER