시스템 식별을 통한 TMD의 태풍거동 및 풍진동 저감성능 분석

The typhoon behavior and performance of a tuned mass damper (TMD) are presented based on the system identification and modal wind load estimation. The TMD is installed on a 39-story, 184.6m steel building located in Songdo, Incheon, and the monitoring system including an anemometer, accelerometers, and internet-based data logging system. The building had experienced a Typhoon ‘Gonpas’ on Sep. 2, 2010, and the peak wind speed measured by an anemometer installed on the roof floor was 49.7 ㎧. The coupled building-TMD modes and modal wind load are identified and the vibration reduction performance of the TMD is evaluated.