A quantitative approach for the evaluation of rockfall risk on buildings

Biagi, Valerio De; Napoli, Maria Lia; Barbero, Monica

doi:10.1007/s11069-017-2906-3

Cited by 14 publications

(11 citation statements)

References 31 publications

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“…(iv) Referring to the elements at risk, the level of vulnerability (on a scale between 0 to 1, typically) can be defined as the degree of loss expected within the area affected by the hazard [14,15].…”

Section: The Risk Assessment Proceduresmentioning

confidence: 99%

“…Finally, the spatial representation of the main elements at risk depends on the four levels of detail reported in Table 1. For example, referring to buildings, the structures are collected in groups at the small and medium scales, whereas, at the large scale, each building is considered singularly, even with simplified approaches based on structural typology, by taking into account its specific resistance capacity and expected degree of loss [15,24].…”

Section: The Risk Assessment Proceduresmentioning

confidence: 99%

“…Existing approaches for the quantitative hazard and risk evaluation demonstrate a high value of subjectivity [15,72] and uncertainties in the historical inventories and in damage assessment. Several authors [15,67,[73][74][75] introduced the event tree (ET, hereafter) approach for solving these problems and provide an objective method to quantify both the rockfall hazard and risk. In general, ETs are largely used in Aerospace, Nuclear, and many other fields of modern Engineering to investigate, identify, and quantify the consequences of loss-making events.…”

Section: Detailed Scalementioning

confidence: 99%

“…Adopting the ET approach, De Biagi et al (2017) [15] proposed a multi-step framework to assess the rockfall risk on buildings considering the occurrence of the rockfall event, the kinetic energy, and the structural response of the impacted elements. Within the methodology, the spatial probability of impact is derived by trajectory analyses performed with a stochastic approach.…”

Section: Detailed Scalementioning

confidence: 99%

“…De Biagi et al (2017) [15], in the framework of an ETs risk analysis, considered the various damage scenarios that could be potentially activated by a rock block impacting a reinforced concrete building. The vulnerability is estimated as the summation of the contribution of all these possible scenarios and the corresponding failure processes.…”

Section: Detailed Scalementioning

confidence: 99%

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Evaluating Rockfall Risk: Some Critical Aspects

et al. 2020

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Rockfalls evolve rapidly and unpredictably in mountain environments and can cause considerable losses to human societies, structures, economical activities, and also natural and historical heritage. Rockfall risk analyses are complex and multi-scale processes involving several disciplines and techniques. This complexity is due to the main features of rockfall phenomena, which are extremely variable over space and time. Today, a considerable number of methods exists for protecting land, as well as assessing and managing the risk level. These methodologies are often very different from each other, depending on the data required, the purposes of the analysis, and the reference scale adopted, i.e., the analysis level of detail. Nevertheless, several questions still remain open with reference to each phase of the hazard and risk process. This paper is devoted to a general overview of existing risk estimation methodologies and a critical analysis of some open questions with the aim of highlighting possible further research topics. A typical risk assessment framework is exemplified by analyzing a real case study. Each step of the process is treated at both the detailed and the large scale in order to highlight the main characteristics of each level of detail.

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Section: The Risk Assessment Proceduresmentioning

confidence: 99%

Section: The Risk Assessment Proceduresmentioning

confidence: 99%