Paper Title:
Pressure of Snow Avalanches against Buildings
  Abstract

The paper aims to analyse the e ects of topography and building position on themagnitude of pressure exerted by snow avalanches against buildings, through a structural backanalysis and numerical uid-dynamics. Studying a real snow avalanche impact occurred in2008 which destroyed a village in Valsavarenche (Aosta Valley - IT), the attention is focused onthe avalanche ow deviation caused by the destructive interaction with a rst building, whichprotected part of a second building beyond it. By means of photographical and in situ survey,a detailed description of avalanche geometrical, dynamical and physical properties is outlined.A structural investigation, based both on debris arrangement and on measurements on theundamaged parts of buildings is also carried out.Thus, a back analysis is carried out in order to de ne collapse dynamics and to estimate theupper and the lower bound of impact pressure. Afterwards, numerical uid-dynamical analysesare performed to simulate di erent impact scenarios and to understand the e ects of obstacleson avalanche behavior: a qualitative measure of the interactions among buildings, which maymutually protect one another, is obtained.

  Info
Periodical
Chapter
Chapter 2: Performance of Structures
Edited by
Ezio Cadoni and Marco di Prisco
Pages
392-397
DOI
10.4028/www.scientific.net/AMM.82.392
Citation
E. Bovet, B. Chiaia, V. De Biagi, B. Frigo, "Pressure of Snow Avalanches against Buildings", Applied Mechanics and Materials, Vol. 82, pp. 392-397, 2011
Online since
July 2011
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Price
$32.00
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