Congreso celebrado en la Escuela de Arquitectura de la Universidad de Sevilla desde el 24 hasta el 26 de junio de 2015.The modal analysis of a building, performed by finite element method, is usually made in a building isolated model. In the case of traditional buildings with masonry structure, this simplification can be very unrealistic, particularly in the case of buildings with shared party walls. The influence of the adjacent buildings, in the modal results of domestic masonry buildings is discussed in this paper. The ultimate goal of the presented work is to quantify the influence of the block in modal results, compared with traditional calculation of isolated buildings. And we are very interested in seeing how the block affects the modal results of damaged buildings, for example, with a significant crack between bearing walls and shear walls due to an important settlement of the foundation. For this work, we have focused on the traditional Sevillan building with a masonry structure. We found that, in the case of buildings with flexible floor disconnected from shear walls and with cracks between bearing walls and shared walls, the dynamic response perpendicular to facade rise hugely. For this particular case, the block has little effect on the response in that direction
