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An Approach for Tackling the Risk of the Residential Building Stocks at the Urban Scale Exploiting Spatial and Typological Archive Data

Today, the concept of risk is increasingly entering the broad scope of environmental and spatial planning, including the exposure of the existing building stocks to seismic risk. In a structural vulnerability assessment at the urban or regional scale, the first step is the identification of recurring structural typologies and their characteristic features. We propose a novel procedure for gathering and classifying typological, constructive and structural data which are relevant in terms of bu...

ASSESSMENT OF SEISMIC FRAGILITY OF HISTORICAL BUILDINGS AT THE URBAN SCALE BY TYPOLOGICAL-MECHANICAL APPROACHES: THE CASE STUDY OF FOGGIA

The study of the seismic vulnerability of historical centres, especially in the Mediterranean zone, is one of the main issues in ongoing scientific research. This is due, on the one hand, to the continuous evolution of the seismic demand and, on the other hand, to the high vulnerability of the masonry existing building stock. The seismic events of the last few years highlighted the necessity to perform a large-scale survey of the huge amount of masonry buildings in historical centres, in orde...

SEISMIC FRAGILITY EVALUATION OF TYPOLOGICAL MASONRY AGGREGATES ACCOUNTING FOR LOCAL COLLAPSE MECHANISMS

The paper presents a study on the seismic fragility of masonry aggregates by considering both global and local collapse mechanisms. Within the framework of urban-scale vulnerability analyses, studying the seismic behavior of the building stock of historical centers represents an intricate challenge, in which the complexity of the urban fabric and the heterogeneity of the structural systems converge. When come to aggregate buildings, additional complications arise, mainly related to the ident...

A TYPOLOGICAL-MECHANICAL APPROACH TO ASSESS LARGE-SCALE SEISMIC FRAGILITY OF MASONRY BUILDINGS IN HISTORICAL CENTRES

The paper presents a mechanical approach for the assessment of large-scale seismic fragility for recurrent masonry building typologies in historical centres. Especially in the context of regional-scale analysis, the poor level of information drives analysts to develop suitable approaches to characterize in a synthetic way the seismic behaviour of the existing masonry building stock. Hence, the proposed framework arises from a matching between historical centres macro-classes and recurrent mas...

SEISMIC VULNERABILITY ANALYSIS OF MASONRY AGGREGATES USING AN AUTOMATED ARCHETYPE-BASED PROCEDURE

The development of reliable methods for assessing the seismic vulnerability at the urban scale of masonry aggregates could provide helpful guidance for reducing the expected damage and losses. However, the lack of structural data and the presence of many sources of uncertainty complicate the vulnerability analyses and reduce the effectiveness of numerical approaches. In this work, a mechanical-based procedure for the seismic vulnerability assessment, named META-FORMA-XL (MEchanical-Typologica...

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