Given the current housing shortage, especially critical in Europe, coupled with a scarcity of construction companies and a lack of skilled labour, precast concrete has gained renewed interest. To further reduce costs and construction time, modular construction presents itself as a promising alternative. In this context, studying and characterizing the seismic behaviour of prefabricated concrete modular structures is essential for guiding the design of safe and reliable structures. This paper presents a numerical study on the seismic behaviour of a prefabricated concrete modular structure designed for residential buildings, up to six stories tall, using the SeismoStruct software. The seismic performance assessment is evaluated through two types of analyses: i) modal analyses; and ii) non-linear static pushover analyses.

From the analyses, it was concluded that the building adopted as a case study demonstrates good seismic behaviour, with the performance point corresponding to a state of significant damage being reached during the linear elastic phase of the capacity curve for seismic zones between 1.3 and 1.6.