Pso-based Tmd & Atmd Control for High-rise Structure Excited by Simulated Fluctuating Wind Field

Article history: Received: 19.05.2014. Received in revised form: 13.08.2014. Accepted: 27.08.2014. This paper reports a novel control strategy combined with artificial intelligence for windinduced vibration control of a high-rise structure and also provides a broader idea for traditional structural vibration control. The fast Fourier transform based on decimation-in-time was used to optimize the waves with a weighted amplitude method, and the wind speed field was numerically generated according to a Davenport type fluctuating wind speed spectrum. A secondgeneration benchmark structure was selected as the high-rise building model. Tuned mass damper (TMD) and active tuned mass damper (ATMD) served as the controller, and the linearquadraticGaussian algorithm served as the active control algorithm for ATMD. Simultaneously, the particle swarm optimization algorithm was introduced, and the integral of the absolute value of the error based on the relative displacement of floors with regard to the ground level was defined as a performance index for optimizing. The numerical results reveal that both of the two proposed controllers have excellent capability in reducing wind-induced vibrations in high-rise buildings; moreover, the PSO-based ATMD performed better than PSO-based TMD.