동조질량감쇠기; 풍진동; 시스템식별; 하중역추정; Tuned Mass Damper; Wind-induced Vibration; System Identification; Inverse Load Estimation
Issue Date
2011-12
Publisher
대한건축학회 / ARCHITECTURAL INSTITUTE OF KOREA
Citation
대한건축학회 논문집 - 구조계 / JOURNAL OF THE ARCHITECTURAL INSTITUTE OF KOREA Structure & Construction. 2011-12 27:83-90
Abstract
The wind response and performance of a tuned mass damper (TMD) are presented based on the system identification and the inverse wind load estimation. The TMD was installed on a 39-story, 184.6m steel building located in Incheon, Korea with a monitoring system consisting of an anemometer, accelerometers, and internet-based data logging system. On Sep. 2, 2010, the building experienced the Kompasu Typhoon, in which the peak wind speed, measured by an anemometer installed on the roof floor, was 49.7 ㎧. In order to analyze the behavior of the building during the typhoon, the dynamic properties of building and TMD are identified from the measured responses. The modal wind load is then inversely estimated from the TMD and building accelerations using a Kalman filter, and the vibration reduction performance of the TMD is evaluated.