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A method to quantitatively assess the vulnerability of masonry structures subjected to rockfalls

Author

Listed:
  • Gianmarco Vallero

    (Politecnico di Torino)

  • Valerio De Biagi

    (Politecnico di Torino)

  • Monica Barbero

    (Politecnico di Torino)

  • Marta Castelli

    (Politecnico di Torino)

  • Maria Lia Napoli

    (Politecnico di Torino)

Abstract

This paper proposes a quantitative method to assess the physical vulnerability of masonry buildings subjected to rockfalls. The impact of a boulder either results in no damage or in a local damage. Depending on the impact energy and the geometrical disposition of the structural and non-structural elements of the building, the local damage can further propagate across the structure, implying a (partial or global) collapse. Three mechanisms of local failure for the masonry walls are considered: punching, arching and vertical bending. For each of them, the method allows to evaluate the equivalent horizontal force exerted on the wall. The most likely local failure mode is then identified considering a full plastic impact model. For sake of simplicity, the damage propagation is geometrically treated with some further information about the arrangement and the typology of the structural elements. Some practical recommendations for on-site surveying concerning building heritage are also given in the text. Finally, the proposed approach is applied to a real case study in order to test its applicability.

Suggested Citation

  • Gianmarco Vallero & Valerio De Biagi & Monica Barbero & Marta Castelli & Maria Lia Napoli, 2020. "A method to quantitatively assess the vulnerability of masonry structures subjected to rockfalls," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 103(1), pages 1307-1325, August.
    • Handle: RePEc:spr:nathaz:v:103:y:2020:i:1:d:10.1007_s11069-020-04036-2
    DOI: 10.1007/s11069-020-04036-2
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    References listed on IDEAS

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    1. Settimio Ferlisi & Leonardo Cascini & Jordi Corominas & Fabio Matano, 2012. "Rockfall risk assessment to persons travelling in vehicles along a road: the case study of the Amalfi coastal road (southern Italy)," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 62(2), pages 691-721, June.
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