PROTECTION OF MEDITERANNEAN HISTORICAL STRUCTURES AGAINST EARTHQUAKES USING FRAGILITY CURVES
The post-earthquake rehabilitation and retrofitting of historical structures is an important issue in the entire Mediterranean basin, which is characterized by its richness in historical masonry structures as well as its high seismicity. The high importance of these structures, the need for evaluation of their present state and often the determination of the extent and the possible ways of reinforcement, impose the development of a methodology that could offer an estimation of their behaviour, taking into account the uncertainties that are introduced during the analysis. These uncertainties caused by the variety of structural materials used in the same monument, the difficulty of determining their mechanical properties and the random action of the earthquake phenomenon make essential the presentation of the vulnerability assessment presented in probabilistic terms. This is being accomplished by a methodology which leads to the construction of the fragility curves that can graphically represent the probability of certain damage ranks under the effect of various earthquakes intensities. Through this family of curves, it is possible to investigate the way that each factor affects the vulnerability of the structure, relatively to others. The application of the methodology proposed is illustrated through three typically buildings made of masonry, situated in Crete, Greece and constructed between the 18th and 19th century. Through these case studies the correlation of the earthquake intensity is being shown.
fragility curves historical structures masonry structures seismic vulnerability probabilistic analysis
C.A. Syrmakezis M.T. Kosta
Professor, Institute of Structural Analysis & Aseismic Research, School of Civil Engineering, Nation Research Assistant, Institute of Structural Analysis & Aseismic Research, School of Civil Engineerin
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）