RETURN Project - PNRR
Published April 1, 2026 | Version v1
Dataset Open

Building impact from Pyroclastic Density Currents

Authors/Creators

  • 1. ROR icon University of Naples Federico II
  • 2. ROR icon Pegaso University
  • 3. ROR icon University of Bari Aldo Moro
  • 4. EURAC Research (Accademia Europea)

Description

This dataset contains the spatial distribution of mean damage in RV1 at the building level produced by a Pyroclastic Density Current hazard scenario, as presented in the associated study.

 

Contents

  • Buildings_PDC_LOD1.shp: polygon layer of buildings with Level of Definition 1 and associated data
  • Dynamic overpressure - Pdyn (kPa).lyrx – symbology layer for dynamic overpressure generated by the Pyroclastic Density Current
  • Temperature - T(°C).lyrx – symbology layer for temperatures generated by the Pyroclastic Density Current
  • Mean Damage - Dynamic Overpressure (PDC).lyrx – symbology layer for mean damage to buildings generated by dynamic overpressures inferred by Pyroclastic Density Currents
  • Temperature - T(°C).lyrx - symbology layer for mean damage to buildings generated by temperature field inferred by Pyroclastic Density Currents

 

Attributes

  • newID:  building identifier
  • fclass: structure class     
  • use: use class (residential/industrial)
  • CAR: 1 if RC (residential) - 100 if RC (industrial) - 0 if other
  • MUR: 1 if Masonry (residential) - 100 if Masonry (industrial) - 0 if other
  • MATERIAL: 1 if RC, 2 if Masonry, 100 (known material) or 0 (unknown material) if industrial           
  • Ns: number of storeys   
  • H_m: mean building height (m)
  • SA: Surface area class (m2)
  • L_B: in-plan shape ratio (longitudinal/transverse)
  • Orient:  1 if longitudinal side parallel to the PDC flow, 2 if orthogonal 
  • Qfmax_GJ: maximum compartment fire load      
  • Pdyn_kPa: Dynamic overpressure field (kPa)        
  • T_C: Temperature field (°C)
  • muD_Pdyn: mean damage to buildings from dynamic overpressures
  • muD_fire: mean damage to buildings from fire ignited by high temperatures

 

The dataset represents the results of a simulation-based assessment of damage to buildings generated by dynamic ovepressures and temperatures inferred by a Pyroclastic Density Current. The mean damage is evaluated at the building level within a virtual testbed representative of typical Italian coastal urban contexts, Coastal Returnville (RV1).

For visualization consistent with the figures presented in the paper, the provided .lyrx files should be applied to the shapefile.

 

Coordinate system

WGS84 – 33N

Files

PyroclasticDensityCurrents_RV1.zip

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Additional details

References

  • Gaetani d'Aragona, M., Polese, M., & Verderame, G.M. 2025. A mechanics-based procedure for the structural assessment of infilled RC buildings under overpressures generated by pyroclastic density currents. International Journal of Disaster Risk Reduction, 124, 105546. https://doi.org/10.1016/j.ijdrr.2025.105546
  • Gaetani d'Aragona, M., Tocchi, G., Miano, A., De Silva, D., Del Zoppo, M., Bragalli, C., Zingali, L.C., Zaniboni, F., Polese, M., Prota, A. Multi-hazard risk assessment in coastal urban settlements: application to the RETURNVILLE virtual testbed (submitted)