000021783 001__ 21783
000021783 005__ 20170622131304.0
000021783 04107 $$aeng
000021783 046__ $$k2017-06-15
000021783 100__ $$aSarhosis, Vasilis
000021783 24500 $$aSEISMIC VULNERABILITY OF DIFFERENT IN GEOMETRY HISTORIC MASONRY TOWERS

000021783 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021783 260__ $$bNational Technical University of Athens, 2017
000021783 506__ $$arestricted
000021783 520__ $$2eng$$aIn the present paper, a simple predictive approach for the seismic vulnerability of existing masonry towers is proposed evaluating it on a series of “idealized” benchmark cases using different simplified approaches, namely the procedure proposed by the Italian code and pushover conducted with two commercial codes (UDEC and 3Muri). In UDEC the geometry is intentionally idealized into quadrilateral elements with different thickness, in order to properly reproduce the hollow square cross-section. The utilization of a 2D approach drastically reduces the computational effort required in carrying out medium scale systematic computations. In 3Muri macro-elements are used, providing very fast predictions as well. Within such simplified frameworks, 16 different cases that can be encountered in practice are critically analyzed, changing two key parameters that proved to be important for the vulnerability determination, namely slenderness and transversal shear cross area. The simplifications introduced in the modelling phase allow for fast sensitivity analyses in the inelastic range and an estimation of the acceleration factor in that range of slenderness that is useful for practical purposes. Simplified formulas fairly representing the obtained seismic vulnerability are also reported and put at disposal to any practitioner interested in a preliminary estimation of the behavior of the towers before doing any calculation.

000021783 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021783 653__ $$aMasonry Towers, Predicting formulas for seismic vulnerability, UDEC and 3Muri, Simplified approach, Acceleration factor.

000021783 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021783 720__ $$aSarhosis, Vasilis$$iMilani, Gabriele$$iFormisano, Antonio$$iFabbrocino, Francesco
000021783 8560_ $$ffischerc@itam.cas.cz
000021783 8564_ $$s309069$$uhttps://invenio.itam.cas.cz/record/21783/files/17918.pdf$$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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000021783 962__ $$r21500
000021783 980__ $$aPAPER