ABSTRACT

This chapter focuses on the development of a comprehensive approach for the study of the behaviour of existing building under the effect of induced earthquakes. The building is characterized by an unreinforced masonry structural system based on masonry walls mainly oriented in the shortest direction. The induced earthquake of 2012 was in high part responsible of most of the actual damage in the Groningen region. The most important elements affecting the global structural capacity should be investigated, involving the behaviour of the different structural typologies and constructive features, the effects of the foundation soil on the structural behaviour, and the structural nonlinearities. Non-linear time-history analyses were carried out in order to assess the seismic capacity of an existing school building in the Groningen region, and to evaluate the effectiveness of some strengthening measures in the upgrading of the earthquake bearing capacity of the structure.