The 2010–2011 Canterbury, New Zealand earthquake sequence caused extensive damage to unreinforced masonry churches. A sample of 80 affected buildings was analysed and their performance statistically interpreted. Structural behaviour is described in terms of mechanisms affecting the so-called macro-elements, and damage probability matrices are computed. Regression models correlating mean damage level against macroseismic intensity are also developed for all observed mechanisms, improving the initial simple-linear formulations through use of multiple-linear regressions accounting for vulnerability modifiers, whose influence is evaluated via statistical procedures. Results presented herein will support the future development of predictive tools for decision-makers, also contributing to seismic vulnerability mitigation at a territorial scale.

Vulnerability Assessment of Unreinforced Masonry Churches Following the 2010–2011 Canterbury Earthquake Sequence / Marotta, Alessandra; Sorrentino, Luigi; Liberatore, Domenico; Ingham, Jason M.. - In: JOURNAL OF EARTHQUAKE ENGINEERING. - ISSN 1363-2469. - ELETTRONICO. - 21:6(2017), pp. 912-934. [10.1080/13632469.2016.1206761]

Vulnerability Assessment of Unreinforced Masonry Churches Following the 2010–2011 Canterbury Earthquake Sequence

Marotta, Alessandra;SORRENTINO, Luigi;LIBERATORE, DOMENICO;
2017

Abstract

The 2010–2011 Canterbury, New Zealand earthquake sequence caused extensive damage to unreinforced masonry churches. A sample of 80 affected buildings was analysed and their performance statistically interpreted. Structural behaviour is described in terms of mechanisms affecting the so-called macro-elements, and damage probability matrices are computed. Regression models correlating mean damage level against macroseismic intensity are also developed for all observed mechanisms, improving the initial simple-linear formulations through use of multiple-linear regressions accounting for vulnerability modifiers, whose influence is evaluated via statistical procedures. Results presented herein will support the future development of predictive tools for decision-makers, also contributing to seismic vulnerability mitigation at a territorial scale.
2017
Damage probability matrices; statistical regressions; unreinforced masonry churches; vulnerability assessment; vulnerability modifiers
01 Pubblicazione su rivista::01a Articolo in rivista
Vulnerability Assessment of Unreinforced Masonry Churches Following the 2010–2011 Canterbury Earthquake Sequence / Marotta, Alessandra; Sorrentino, Luigi; Liberatore, Domenico; Ingham, Jason M.. - In: JOURNAL OF EARTHQUAKE ENGINEERING. - ISSN 1363-2469. - ELETTRONICO. - 21:6(2017), pp. 912-934. [10.1080/13632469.2016.1206761]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/896268
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