Predictive model for the seismic vulnerability assessment of small historic centres: Application to the inner Abruzzi Region in Italy

Brando, Giuseppe; Matteis, Gianfranco De; Spacone, Enrico

doi:10.1016/j.engstruct.2017.10.013

Cited by 87 publications

(32 citation statements)

References 33 publications

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“…The first approach allows for the estimation of the global vulnerability through quick analyses principally based on vulnerability forms widely used all over Europe (Ferreira et al, 2013;Brando et al, 2017;Formisano et al, 2017;Tiberti and Milani, 2017;Chieffo et al, 2018). This methodology allows to univocally correlate the building seismic vulnerability index, I v , deriving from filling specific survey forms, with the possible expected damage (Lagomarsino and Giovinazzi, 2006), which is expressed through the mean damage grade, µ D , following the European Macroseismic Scale, EMS-98 (Grünthal, 1998).…”

Section: Introductionmentioning

confidence: 99%

Comparative Seismic Assessment Methods for Masonry Building Aggregates: A Case Study

Chieffo

Formisano

2019

Front. Built Environ.

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Recent seismic events produced considerable socioeconomic losses. An important step for the reduction and mitigation of seismic risk in urban areas with a high population density is the assessment of global vulnerability of clustered buildings. The proposed work aims at appraising the seismic vulnerability of building aggregates within the historical center of Arsita, damaged by the L'Aquila earthquake (2009 April 6th), through a multi-level approach deriving from the application of different estimation procedures. In particular, the seismic vulnerability quantification has been done by comparing three distinct methods, namely the macroseismic approach according to the EMS-98 scale, the Vulnus methodology, developed by the University of Padua, and the mechanical approach derived from using the 3Muri software. The expected damage has been estimated in terms of fragility curves, respectively, for the entire buildings compound and the individual structural units located in the corner and intermediate positions, in order to evaluate the beneficial or detrimental aggregate effect on the seismic behavior of individual constructions examined.

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Section: Introductionmentioning

confidence: 99%

Comparative Seismic Assessment Methods for Masonry Building Aggregates: A Case Study

Chieffo

Formisano

2019

Front. Built Environ.

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“…Regarding the experimental investigations, ambient vibration tests are the main methods for assessing the seismic behavior of full-scale structures Clementi et al, 2017Clementi et al, , 2018Ubertini et al, 2017Ubertini et al, , 2018. Obtained results have been used as the basis for implementing different non-linear analysis methods Brando et al, 2017;Quagliarini et al, 2017). Mostly, more accurate results have been obtained through the use of Finite Element (FE) models.…”

Section: Introductionmentioning

confidence: 99%

Seismic and Energetic Interventions on a Typical South Italy Residential Building: Cost Analysis and Tax Detraction

Formisano

Vaiano

Fabbrocino

2019

Front. Built Environ.

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Italian buildings are mainly represented by unreinforced masonry (URM) constructions, which were mostly built before 1970, often without respecting seismic design criteria. The main objective of Italian designers is, therefore, to retrofit these buildings in order to improve their safety under earthquake, as well as to preserve the memory of the ancient building art. In addition, the assessment of the building energetic efficiency is nowadays a very pressing need for designers and practitioners. Energetic efficiency represents the capacity to optimize the consumption of energy resources in order to reach prefixed requirements for the environment protection . This paper shows both seismic and energetic retrofitting interventions on a residential URM building typical of the constructive practice in the South Italy. Initially, the building characterization under geometrical and structural viewpoints is done. Subsequently, the seismic vulnerability verification is performed with unsatisfactory results, so requiring upgrading or retrofitting interventions. Moreover, with the aim to increase living comfort and energy efficiency, energetic upgrading interventions, aimed at decreasing the building transmittance, are proposed. Seismic and energetic interventions are then computed from the economic point of view in order to evaluate the financial contributions foreseen by the Italian 2018 Balance Law through the Sismabonus and Ecobonus tools, respectively. Finally, the study proposes a global performance index able to take into account contemporary the seismic, energetic, and economic benefits deriving from retrofitting interventions applied on the inspected residential building.

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“…Vulnerability functions express the relationship between the selected IM (e.g., peak ground acceleration, PGA) and the damage factor (DF), where the letter represents the expected average ratio of the repair cost to the replacement cost of the building. Such vulnerability functions can be defined using the methodologies and results of scientific literature (interesting approaches for structural aggregates and/or structural units can be found in [8][9][10]), or utilizing datasets and catalogs that are available on web platforms as resources for open risk modeling. Alternatively, they can be generated by sets of fragility curves using, for example, the following expression:…”

Section: Methodsmentioning

confidence: 99%

Fragility Curves of the Urban Road Network Based on the Debris Distributions of Interfering Buildings

2020

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Fragility curves are essential tools to quantitatively assess the physical vulnerability of structures and infrastructures at risk for a given seismic hazard. They describe the probability of exceeding a given performance level under earthquake excitation, and are usually defined by a lognormal probability distribution function. Although debris from damaged buildings adjacent to road edges is the main cause of urban mobility disruption, studies on the fragility curves development for infrastructures subject to seismic actions focus on geotechnical effects, and do not analyze this type of road blockage. The article proposes an analytical procedure to construct fragility curves for urban road networks. It is based on the construction of debris graphs and the use of an appropriate fitting technique. For a given seismic intensity measure level, the developed fragility curves express the probability that the road is open or closed to the transit of emergency vehicles after debris fall. Therefore, the performance level is defined in terms of the width of the road pavement that remains free after the debris fall, or the width of the debris heap on the road pavement. Finally, the proposed framework is tested with real data of the main street in Amatrice, and the results are presented and discussed.

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Predictive model for the seismic vulnerability assessment of small historic centres: Application to the inner Abruzzi Region in Italy

Cited by 87 publications

References 33 publications

Comparative Seismic Assessment Methods for Masonry Building Aggregates: A Case Study

Comparative Seismic Assessment Methods for Masonry Building Aggregates: A Case Study

Seismic and Energetic Interventions on a Typical South Italy Residential Building: Cost Analysis and Tax Detraction

Fragility Curves of the Urban Road Network Based on the Debris Distributions of Interfering Buildings

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