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The semi-empirical assessment of seismic vulnerability of ancient church buildings is possible only if sufficient knowledge of the expected seismic behavior is available for a wide variety of typologies. For this reason, the information inferred from seismic damage observation may need to be complemented by numerical analysis. A simplified material model is proposed here for predicting the damage from out-of-plane behavior of large walls in old masonry churches subjected to seismic loading. For a specific substructure, the church façade, the effects of geometry, strength and post-elastic behavior of the material, as well as excitation characteristics are then analyzed with reference to the formation of a collapse mechanism. Comparison with observed damage thoroughly confirms the crack patterns developed numerically. Thence, the material model proposed may be considered satisfactory and suitable for use in seismic vulnerability studies.

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Strategic public buildings must be made as efficient as possible to allow for emergency operations, like search and rescue activities, taking care of victims, and evacuation. Looks at strategic public buildings as part of urban and regional systems. Addresses factors such as physical vulnerability to a seismic event, location, accessibility, interaction with the soil, links with other public facilities, and the way the latter are used under normal conditions. Considers whether public facilities can continue providing their service under stressful conditions, even when a certain degree of physical damage has been suffered by structures or by medical equipment. The health‐care system has been chosen as a key test field: the result is a framework which helps assess the vulnerability of hospitals serving an area prone to seismic risk.