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Earthquakes and Structures Volume 18, Number 1, January 2020 , pages 57-72 DOI: https://doi.org/10.12989/eas.2020.18.1.057 |
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Seismic analysis of a masonry cross vault through shaking table tests:the case study of the Dey Mosque in Algiers |
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Michela Rossi, Chiara Calderini, Ivan Roselli, Marialuisa Mongelli,Gerardo De Canio and Sergio Lagomarsino
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| Abstract | ||
| This paper presents the results of a monodirectional shaking table test on a full-scale unreinforced masonry cross vault characterized by asymmetric boundary conditions. The specimen represents a vault of the mosque of Dey in Algiers (Algeria), reproducing in detail the mechanical characteristics of masonry, and the constructive details including the presence of some peculiar wooden logs placed within the vault\'s configurations were studied by using an incremental dynamic analysis up to the collapse of the vault without the steel bars. The use of an innovative high-resolution 3D optical system allowed measure displacement data of the cross vault during the shake table tests. The experimental results were analysed in terms of evolution of damage mechanisms, and in-plane and out-of-plane deformations. Moreover, the dynamic properties of the structure were investigated by means of an experimental modal analysis. | ||
| Key Words | ||
| masonry cross vault; seismic response; shaking table; collapse mechanism; modal analysis | ||
| Address | ||
| Michela Rossi,Chiara Calderini,Sergio Lagomarsino:Department of Civil, Chemical and Environmental Engineering, University of Genoa, Via Montallegro 1, 16145 Genova Ivan Roselli,Marialuisa Mongelli,Gerardo De Canio: 2ENEA – Italian National Agency for New Technologies, Energy and Sustainable Economic DevelopmentVia Anguillarese 301, 00123, Rome, Italy | ||