Performance of confined masonry of 1953 during the 2014 Cephalonia Earthquake

摘要

Cephalonia Island is the region of highest seismicity in Greece. The entire building stock of the island consisting primarily of traditional unreinforced masonry was devastated in 1953 after three strong earthquakes. To house the displaced population of the island the authorities commissioned the development of a system close to what is now known as confined masonry for building new residential dwellings. In 2014 these buildings sustained with negligible damage two strong ground motions with excessively high ground accelerations that were twice the design value. The response of these buildings is examined herein by FEM linear analysis with an emphasis of the effectiveness of these good practices in mitigating the tendencies for localization of deformation demands, which is considered the primary indicator of seismic vulnerability.