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Scale-dependent procedures for seismic risk assessment and management of industrial building portfolios
In the last years the assessment and management of seismic risk in the manufacturing industry has received a continuously growing interest, due to the significant consequences, both direct and indirect, that can be triggered by earthquakes (e.g. (Tohoku, 2011; Emilia, 2012). The present thesis is focused on the development and the application to real case-studies of different procedures for seismic risk assessment and management in the industrial and insurance fields. The research addresses to the problem at different scales: (i) a “large scale”, typically the one of interest of the insurer, at which the number of buildings to deal with is of hundreds or thousands; a “meso scale”, typically the one of large industrial groups, at which the number of building is of tens to hundreds; (iii) a “site-specific” scale, that is the one of interest for a single plant. At each one of the previously listed scales, a different procedure has been proposed. At the “large scale”, a detailed assessment of vulnerability is, in general, unfeasible. Therefore, a prioritization scheme has been developed with the purpose of analysing a portfolio of structures and ranking their seismic risk in a coherent manner, in order to define a priority scale for further, more detailed, investigations. This approach is based on the evaluation of a conventional (or “nominal”) seismic risk index, on the basis of extremely poor and easy to retrieve data, at least the year of construction and geographic location, for the production of which it is not required any visual inspection of the structures. This index is defined as the gap between the current seismic demand and the seismic capacity, the latter evaluated on the basis of seismic demand at the time of the design, assuming a perfect code compliance. In the case of structures not designed in a seismic zone, the horizontal capacity may be obtained from the design for other horizontal actions, such as that from wind. In order to implement the proposed prioritization scheme and compare it to other ...
Scale-dependent procedures for seismic risk assessment and management of industrial building portfolios
In the last years the assessment and management of seismic risk in the manufacturing industry has received a continuously growing interest, due to the significant consequences, both direct and indirect, that can be triggered by earthquakes (e.g. (Tohoku, 2011; Emilia, 2012). The present thesis is focused on the development and the application to real case-studies of different procedures for seismic risk assessment and management in the industrial and insurance fields. The research addresses to the problem at different scales: (i) a “large scale”, typically the one of interest of the insurer, at which the number of buildings to deal with is of hundreds or thousands; a “meso scale”, typically the one of large industrial groups, at which the number of building is of tens to hundreds; (iii) a “site-specific” scale, that is the one of interest for a single plant. At each one of the previously listed scales, a different procedure has been proposed. At the “large scale”, a detailed assessment of vulnerability is, in general, unfeasible. Therefore, a prioritization scheme has been developed with the purpose of analysing a portfolio of structures and ranking their seismic risk in a coherent manner, in order to define a priority scale for further, more detailed, investigations. This approach is based on the evaluation of a conventional (or “nominal”) seismic risk index, on the basis of extremely poor and easy to retrieve data, at least the year of construction and geographic location, for the production of which it is not required any visual inspection of the structures. This index is defined as the gap between the current seismic demand and the seismic capacity, the latter evaluated on the basis of seismic demand at the time of the design, assuming a perfect code compliance. In the case of structures not designed in a seismic zone, the horizontal capacity may be obtained from the design for other horizontal actions, such as that from wind. In order to implement the proposed prioritization scheme and compare it to other ...
Scale-dependent procedures for seismic risk assessment and management of industrial building portfolios
Petruzzelli, Fabio (author)
2013-04-02
Petruzzelli, Fabio (2013) Scale-dependent procedures for seismic risk assessment and management of industrial building portfolios. [Tesi di dottorato]
Theses
Electronic Resource
Italian , English
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