A mathematical form of probabilistic vulnerability model for loss and casualty ratios

Autor:	Damian N. Grant
Rok vydání:	2020
Předmět:	Geophysics Vulnerability model Computer science Probabilistic logic Vulnerability Applied mathematics Function (mathematics) Geotechnical Engineering and Engineering Geology Ground shaking Probabilistic description Intensity (heat transfer) Parametric statistics
Zdroj:	Earthquake Spectra. 36:700-717
ISSN:	1944-8201 8755-2930
Popis:	A parametric mathematical form of vulnerability function is developed that gives a full probabilistic description of losses as a function of earthquake ground shaking intensity. The model is intended to be used with any loss measure that can take values between 0% and 100%, inclusive, including normalized financial losses (damage ratios), human casualty rates, or debris cover. It is a mixed discrete-continuous probability distribution, in that it assigns a discrete probability mass to experiencing exactly 0% or 100% loss, and a continuous probability density to values in between. The model can be used with empirical or analytical loss data. Two possible regression approaches are presented and Monte Carlo analysis is used to demonstrate that the regressions give unbiased estimates of the model parameters. Finally, the model is applied to a data set of debris cover percentages estimated from detailed finite element analysis of Dutch unreinforced masonry buildings.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7762d0f11b9257c15b94e3a9dcdfdf70 https://doi.org/10.1177/8755293019891719 Zobrazit plný text záznamu