The seismic vulnerability assessment of historical UnReinforced Masonry (URM) buildings is a very complex task since it is strongly related to a great variety both of geometrical layouts and of masonry mechanical characteristics. In this article, some results of a Catania University research project, denomined “FIR 2014”, focused on the seismic vulnerability estimation of historical buildings, built in Catania after the 1963 earthquake, are presented. First, a detailed typological analysis of the considered urban fabric, characterized by typical residential masonry buildings, has been performed. Such analysis allowed recognizing an elementary structural modulus, which has been studied according to different geometrical layouts representative of isolated or aggregate buildings. The results of nonlinear static analyses, performed by applying an innovative macro-element approach, allowed for the assessment the seismic vulnerability of typical URM buildings coherently to the Italian seismic code. The adopted macro-element strategy for the seismic assessment of aggregate masonry buildings, although related to a specific historical center, may be applied to similar urban fabrics and can also be used for the calibration and validation of fast seismic assessment strategies, particularly useful for the evaluation of the seismic risk at urban scale.

历史悠久的无筋砌筑（URM）建筑物的地震易损性评估是一项非常复杂的任务，因为它与各种各样的几何布局和砌体机械特性密切相关。在本文中，介绍了卡塔尼亚大学一项名为“ FIR 2014”的研究项目的一些结果，该项目的重点是估算1963年地震后在卡塔尼亚建造的历史建筑的地震易损性。首先，已经对以典型的住宅砌体建筑为特征的所考虑的城市结构进行了详细的类型学分析。这种分析允许识别基本的结构模量，已根据代表孤立或聚集建筑物的不同几何布局进行了研究。非线性静态分析的结果，通过应用创新的宏观元素方法进行的评估，可以评估典型URM建筑物的地震易损性，使其与意大利地震法保持一致。尽管与特定的历史中心相关，但采用的宏单元策略来对砌体建筑进行地震评估虽然可以应用于类似的城市结构，但也可以用于快速地震评估策略的标定和验证，这对建筑的抗震设计特别有用。评估城市规模的地震风险。