000021626 001__ 21626
000021626 005__ 20170622131256.0
000021626 04107 $$aeng
000021626 046__ $$k2017-06-15
000021626 100__ $$aCundari, Alfredo
000021626 24500 $$aCOMPARATIVE SEISMIC ASSESSMENT OF A MEDIOEVAL MASONRY CHURCH IN SOUTHERN ITALY

000021626 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021626 260__ $$bNational Technical University of Athens, 2017
000021626 506__ $$arestricted
000021626 520__ $$2eng$$aA comprehensive numerical investigation on a medieval masonry church in Calabria region (Southern Italy) is presented. The church has historical and architectural interest, being one of the first examples of Christian temples in the area. It exhibits a number of irregularities in plan and elevation, plus a visible state of degradation of the masonry material that make the investigation of its vulnerability under horizontal loads advisable, also in light of an expected short term and strong seismic event in the area. The safety assessment under horizontal loads is done using a variety of numerical analyses, ranging from Response Spectrum Analyses RSAs, non-linear static (pushover) and limit analyses (both on pre-assigned failure mechanisms and with FEs). A refined full 3D plate and shell FE model is adopted, after detailed in situ inspection of the geometry and perusal of the historical documentation. Numerical results are obtained both by means of a noncommercial full 3D software developed by one of the authors (FE limit analysis), and a commercial code (Strand7®). Limit analyses with pre-assigned failure mechanisms, as per Italian guidelines for cultural heritage, are also performed, with evaluated collapse accelerations and associated mechanisms matching well with FE results. As a matter of fact, a remarkable consistency among all the different procedures is found, meaning that even simplified approaches (like limit analysis with pre-assigned failure mechanisms) or RSA (typically not recommended because of the linearity hypothesis for masonry) can provide -if critically analyzed – useful hints on possible damage patterns and active failure mechanisms in case of a seismic event. In all cases, numerical computations proved to be valuable tools to predict the most probable behavior in case of an expected strong earthquake, suggesting the most suited way for an effective strengthening.

000021626 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021626 653__ $$aMasonry Churches, Earthquake, Seismic Vulnerability Evaluation, Response Spectrum Analysis, Non-Linear Static Analysis (Pushover), Limit Analysis.

000021626 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021626 720__ $$aCundari, Alfredo$$iFailla, Giuseppe$$iMilani, Gabriele
000021626 8560_ $$ffischerc@itam.cas.cz
000021626 8564_ $$s1059476$$uhttps://invenio.itam.cas.cz/record/21626/files/17285.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS27] Advanced numerical methods for historical masonry monuments preservation in seismic zone
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000021626 962__ $$r21500
000021626 980__ $$aPAPER