Post-Earthquake Assessment and Possibilities for Management of Existing Masonry Buildings

2020 Zagreb earthquake sequence provided unprecedented opportunity to answer many unknowns and uncertainties in the understanding on earthquake performance of masonry buildings and to analyze many concerns affecting the post-earthquake assessment and renovation strategies in Croatia. These decisions are based on the updated knowledge obtained through the assessment. Condition assessment can be done on multiple levels, e.g. basic visual assessment of a structure, assessment with various destructive, non-destructive and semi-destructive testing methods, interpretation of a data from structural health monitoring, various levels of structural modelling and safety verification formats. Procedures mentioned are carried out to collect the data on several significant factors that affect the seismic behavior of buildings. The comprehensive data and overview on the seismic performance and management of masonry buildings after the earthquakes in Croatia can be used to test the effectiveness of existing models and to inform the development of new models for seismic risk assessment and resilience analysis. The condition assessment and renovation process of building of exceptional heritage importance will be presented and discussed. The value of information analysis presented for a case study building shows how additional information and acquired knowledge brings multiple benefits in retrofitting and management process.