The project involves the structural assessment and the strengthening of the 17 structurally independent buildings of the vocational secondary schools in Chalkida, with a total area of approximately 17,000 m². The superstructure of the buildings consisted of reinforced concrete frames (in 2 of them, the roof of the top floor was made of steel), and they were based on deep (pile) foundations, due to the very soft soil substrate.
The proposed strengthening scheme included reinforced concrete jackets for all vertical elements and several beams, as well the application of FRP wrapping to some of the members, where jackets were not easily applicable.
The study was conducted in 2023. For the seismic evaluation and strengthening of the buildings the nonlinear static procedure with pushover analysis in accordance with the Greek Intervention Code (KANEPE) was carried out, using the SeismoBuild and SeismoStruct software packages.
