000015779 001__ 15779
000015779 005__ 20161115135329.0
000015779 04107 $$aeng
000015779 046__ $$k2013-06-12
000015779 100__ $$aPsycharis, I.
000015779 24500 $$aSeismic Reliability Assessment of Classical Columns Subjected To Near Source Ground Motions

000015779 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000015779 260__ $$bNational Technical University of Athens, 2013
000015779 506__ $$arestricted
000015779 520__ $$2eng$$aA methodology for the performance-based seismic risk assessment of classical columns is presented. Classical columns are articulated structures, made of several discrete bulgy stone blocks (drums) put one on top of the other without mortar. Despite its apparent instability, this structural system is, in general, earthquake resistant, as proven from the fact that many classical monuments have survived many strong earthquakes over the centuries. Nevertheless, due to the fundamental non-linear character and the sensitivity of their response, the quantitative assessment of their reliability and the understanding of their dynamic behaviour are not easy. Consequently, the derivation of general remarks regarding their seismic risk is not trivial. In order to understand the dynamic behaviour and estimate the capacity of multidrum columns, a seismic risk assessment methodology is performed using Monte Carlo simulation with synthetic ground motions. The ground motions adopted contain a high and a low frequency component, combining the stochastic method and a simple analytical pulse model in order to simulate the directivity pulse contained in near source ground motions. Fragility curves are produced first conditional on magnitude and fault distance and then using a scalar intensity measure. The deterministic model for the numerical analysis of the system is three dimensional and is based on the Discrete Element Method (3D DEM). Fragility analysis demonstrates some of the salient features of these spinal systems and provides useful results regarding their reliability and decision-making during restoration process.

000015779 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015779 653__ $$aClassical monuments, multidrum masonry columns, risk assessment, 3D Distinct Element Method (DEM), performance-based design.

000015779 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000015779 720__ $$aPsycharis, I.$$iFragiadakis, M.$$iStefanou, I.
000015779 8560_ $$ffischerc@itam.cas.cz
000015779 8564_ $$s2027666$$uhttps://invenio.itam.cas.cz/record/15779/files/1442.pdf$$yOriginal version of the author's contribution as presented on CD, section: CD-MS 21 SEISMIC BEHAVIOUR AND RETROFITTING OF MONUMENTS AND HISTORICAL BUILDINGS
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000015779 962__ $$r15525
000015779 980__ $$aPAPER