Modal testing of a retrofitted building

ETA-B Building located in Boğaziçi University, North Campus is monitored before, during and after its retrofitting process by previous researchers. An Enhanced Frequency Domain Decomposition identification algorithm is developed in this study to be able to analyze the gathered data. The results of these analysis is then used along with the Finite Element Models generated in this study to perform model updating procedures. The updated and non-updated Finite Element Models are then subjected to linear time history analysis for a selection of earthquakes and the storey drift ratios are compared to evaluate the effect of Structural Health Monitoring on the obtained results. The results indicate that Structural Health Monitoring could have a distinct impact on the decision making process for safety approval, retrofitting or demolishing decisions for existing structures. The theory and background for Structural Health Monitoring is also made available in this thesis, along with discussions on what it could and could not currently enable in terms of its possible uses, advantages and shortcomings.