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Seismic vulnerability assessment of a mixed masonry–RC building aggregate by linear and nonlinear analyses

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Abstract

From the beginning of the twentieth century, and due to the rapid increase of reinforced concrete (RC) usage, mixed masonry–RC buildings have emerged. In Lisbon, Portugal, old mixed masonry–RC buildings appeared between 1920 and 1960, representing the transition period between masonry and proper RC. These buildings are often integrated in blocks, and frequently share the side-walls, implying, thus, the need to assess the seismic vulnerability of building aggregates. The present paper approaches the seismic vulnerability assessment of a specific type of old mixed masonry–RC buildings in Lisbon. The study comprises the analysis of a building, both as an isolated structure and inserted in its aggregate, using two approaches: (1) linear dynamic analysis with SAP2000 and (2) nonlinear static analysis by means of 3Muri/Tremuri software. A comparison of both approaches derives a good matching between the obtained results. However, a nonlinear analysis is required to identify, in an adequate manner, the critical areas of the structure requiring strengthening.

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Correspondence to Jelena Milosevic.

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Ferrito, T., Milosevic, J. & Bento, R. Seismic vulnerability assessment of a mixed masonry–RC building aggregate by linear and nonlinear analyses. Bull Earthquake Eng 14, 2299–2327 (2016). https://doi.org/10.1007/s10518-016-9900-0

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  • DOI: https://doi.org/10.1007/s10518-016-9900-0

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