Seismic fragility and risk of Italian residential masonry heritage

Donà, Marco; Xu, Lei; Carpanese, Pietro; Follador, Veronica; Porto, Francesca da; Sbrogiò, Luca

doi:10.1201/9781003098508-16

Cited by 3 publications

(3 citation statements)

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“…The present study is in continuity with past analyses [44,45] in which a database of more than 500 buildings was analyzed using Vulnus 4.0 and fragility sets were obtained for ten macro-types (five age and two height classes) of as-built residential masonry buildings. Specifically, the eight interventions identified in the previous chapters have been implemented on those 205 buildings which belonged to the Pre-1919 macro-typology of the original database.…”

Section: Fragility Model With Retrofit Interventionsmentioning

confidence: 64%

Fragility Curves for Italian Residential Masonry Buildings With Retrofit Interventions

Follador¹,

Donà²,

Carpanese³

et al. 2021

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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The earthquakes of the last decades have shown that the Italian residential masonry built heritage has high seismic vulnerability, in particular when considering structures built before 1919. For this reason, it is necessary to develop effective large-scale risk mitigation strategies in order to reduce the huge losses that could occur in the aftermath of an earthquake. In this paper some retrofit interventions applicable mainly to old buildings are presented, explaining their advantages and potential. These interventions are then implemented, through Vulnus 4.0 software, on a database of 205 buildings built before 1919, previously analyzed in their as-built state. Fragility curves are then developed for each building, and are processed in order to create a vulnerability model for different construction periods that takes into account the possible retrofit intervention strategies. Therefore, this procedure allows a comparison between pre and post retrofit intervention fragility, and the results in terms of curves can be used for large scale damage and risk simulations.

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Section: Fragility Model With Retrofit Interventionsmentioning

confidence: 64%

Fragility Curves for Italian Residential Masonry Buildings With Retrofit Interventions

Follador¹,

Donà²,

Carpanese³

et al. 2021

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…The engineering community has devoted considerable effort to identifying the critical values of ground motion that lead to building damage and collapse. This was done based on both empirical (Rota et al, 2008;Masi et al, 2019) and analytical (Borzi et al, 2008;Donà et al, 2020) approaches. Fragility and vulnerability curves have been defined for different building types and are currently used to estimate expected damage in case of seismic events (e.g., Borzi et al, 2008;Poggi et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Applying the damage assessment for rapid response approach to the august 24 M6 event of the seismic sequence in central Italy (2016)

2022

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Seismic monitoring networks are increasingly being used in urban areas to record and locate earthquakes. Recordings in the proximity of buildings also allow assessing, as a first approximation, the expected building damage. The DARR (Damage Assessment for Rapid Response) method provides local-scale information on expected damage patterns. The potential of this approach is discussed here for the August 24 M6 event of the Central Italy seismic sequence (2016–2017). We focus only on the first event of the sequence because cumulative damage is outside the scope of this study. The earthquake recordings are available from two Italian monitoring networks: the Italian Accelerometric Archive (ITACA) and the OSS (Osservatorio Sismico delle Strutture), which collects data from monitored buildings and bridges in Italy. We selected four target areas (Amatrice, Norcia, Visso and Sulmona) characterized by different epicentral distances and building typologies, that suffered different levels of damage during the M6 event on 24 August 2016. Using recordings either in the free field or in the basement of buildings, the expected relative displacement of building typologies common in the studied areas is calculated with the DARR method. Using predefined damage thresholds from literature, the obtained results allow quantifying the expected damage for dominant building typologies in the surroundings of the recording sites. We investigate and discuss the potential use and applicability of the DARR method in different areas depending on the epicentral distance and building characteristics. The results indicate that the DARR approach is useful for supporting and improving rapid response activities after a seismic event.

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“…The purpose of this paper is to present retrofitted fragility curves, developed within the above-mentioned ReLUIS projects, simulating different types of interventions on a database of residential masonry buildings. Those buildings have been already analyzed in their as-built condition in previous studies [14,29,30]. This elaboration allows estimating the vulnerability reduction brought by different retrofit interventions, and it gives an indication of their effectiveness when applied at a large scale.…”

Section: Introductionmentioning

confidence: 99%

Effect of Retrofit Interventions on Seismic Fragility of Italian Residential Masonry Buildings

Follador¹,

Carpanese²,

Donà³

et al. 2022

SSRN Journal

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Seismic fragility and risk of Italian residential masonry heritage

Cited by 3 publications

References 0 publications

Fragility Curves for Italian Residential Masonry Buildings With Retrofit Interventions

Fragility Curves for Italian Residential Masonry Buildings With Retrofit Interventions

Applying the damage assessment for rapid response approach to the august 24 M6 event of the seismic sequence in central Italy (2016)

Effect of Retrofit Interventions on Seismic Fragility of Italian Residential Masonry Buildings

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