000013356 001__ 13356
000013356 005__ 20161114160337.0
000013356 04107 $$aeng
000013356 046__ $$k2009-06-22
000013356 100__ $$aSyrmakezis C., A.
000013356 24500 $$aProtection of mediterranean historical structures against earthquakes using fragility curves

000013356 24630 $$n2.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013356 260__ $$bNational Technical University of Athens, 2009
000013356 506__ $$arestricted
000013356 520__ $$2eng$$aThe post-earthquake rehabilitation and retrofitting of historical structures is an important issue in the entire Mediterranean area, where many cultural heritage buildings are made of masonry. This type of structure is characterized by its low tensile strength, geometrical peculiarities, past damages due to earthquakes, degradation (cracks), lack of proper conservation and sometimes incompatible human interventions. The high importance of these structures and the high seismicity of their location are two contradictory factors that impose their present state’s evaluation and if necessary, the definition of possible strengthening measures, minimization of interventions, as well as the compatibility of the materials used in rehabilitation of historical structures, are highly desirable. In this paper, a methodology developed for the protection of historical masonry structures is presented and illustrated on three characteristic examples of historical outstanding masonry structures, located in the island of Creta, Greece, will be presented. For the analytical assessment of historical structures’ seismic response, two sets of information should be taken into consideration. The first one involves structural properties and the other one the parameters characterizing the random seismic event. In both cases, many uncertainties are introduced during the structural and earthquake simulation. The buildings’ seismic response will be investigated through finite element analysis and presentation of their vulnerability assessment in probabilistic terms, using the software SAP v.11.0.1 and the program FAILURE, which provides an optical indication of failing areas on wall surfaces, when the structure is subjected to a single seismic event. By processing the data from the previous software, and particularly the percentage of the total surface’s damage, the fragility curves can easily be formulated. Through these curves, as shown on the examples presented, it is possible to distinguish the possibility of exceeding certain damage levels and also to investigate the way that each factor affects the vulnerability of the structure, relatively to others, so that the correlation of the earthquake intensity will be showed.

000013356 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013356 653__ $$afragility curves, historical structures, masonry structures, seismic vulnerability, probabilistic analysis Abstract. The post-earthquake rehabilitation and retrofitting of historical structures is an important issue in the entire Mediterranean area, where many cultural heritage buildings are made of masonry. This type of structure is characterized by its low tensile strength, geometrical peculiarities, past damages due to earthquakes, degradation (cracks), lack of proper conservation and sometimes incompatible human interventions. The high importance of these structures and the high seismicity of their location are two contradictory factors that impose their present state’s evaluation and if necessary, the definition of possible strengthening measures, minimization of interventions, as well as the compatibility of the materials used in rehabilitation of historical structures, are highly desirable. In this paper, a methodology developed for the protection of historical masonry structures is presented and illustrated on three characteristic examples of historical outstanding masonry structures, located in the island of Creta, Greece, will be presented. For the analytical assessment of historical structures’ seismic response, two sets of information should be taken into consideration. The first one involves structural properties and the other one the parameters characterizing the random seismic event. In both cases, many uncertainties are introduced during the structural and earthquake simulation. The buildings’ seismic response will be investigated through finite element analysis and presentation of their vulnerability assessment in probabilistic terms, using the software SAP v.11.0.1 and the program FAILURE, which provides an optical indication of failing areas on wall surfaces, when the structure is subjected to a single seismic event. By processing the data from the previous software, and particularly the percentage of the total surface’s damage, the fragility curves can easily be formulated. Through these curves, as shown on the examples presented, it is possible to distinguish the possibility of exceeding certain damage levels and also to investigate the way that each factor affects the vulnerability of the structure, relatively to others, so that the correlation of the earthquake intensity will be showed.

000013356 7112_ $$aCOMPDYN 2009 - 2nd International Thematic Conference$$cIsland of Rhodes (GR)$$d2009-06-22 / 2009-06-24$$gCOMPDYN2009
000013356 720__ $$aSyrmakezis C., A.$$iKosta M., T.
000013356 8560_ $$ffischerc@itam.cas.cz
000013356 8564_ $$s824008$$uhttps://invenio.itam.cas.cz/record/13356/files/CD527.pdf$$yOriginal version of the author's contribution as presented on CD, section: Seismic behaviour of monuments - i (MS).
000013356 962__ $$r13074
000013356 980__ $$aPAPER