Abstract
The purpose of this project is to provide a review of existing literature and research in the field of Structural Health Monitoring, and exercise the concepts obtained from the review in theoretical example 4-story steel building. The structural health monitoring system will be designed to monitor the performance and detect damage in a special steel moment resisting frame and special steel concentrically braced frame under lateral seismic loading. To aid in the design and implementation of the structural health monitoring system, pushover analyses were conducted to assess likely locations of damage. From the pushover analyses, a set of damage cases were created for each frame that were used in a theoretically confirm the Modal Strain Energy damage detection algorithm. The modal strain energy method is a vibration-based method of structural health monitoring that utilizes operational modal analysis and the time domain decomposition technique. For each damage case, computer modal analysis was used to obtain theoretical mode shape data of the structure. In each damage case, the modal strain energy method algorithm was appeared to correctly identify in the story level of the lateral force resisting frame that contained the damage.