High-rise Building Wind-induced Vibration Control Response Analysis And Optimization Design,

With the advance of science and the development of society, more and more tall buildings appeared, and are developing toward the direction of high strength and light mass. The stiffness and damping of structures are declining. The effect of the wind, as the main load to the tall buildings, to the structures is aggravating. Through the way of control of wind-induced vibration (for fixing TMD or TLD in the structures), the wind-induced response of structures is reduced effectively, the reliability is improved and comfort requirement is satisfied. Wind-induced damage is reduced. The control effect to wind-induced vibration of structures has something to do with the parameters of TMD and TLD. If selecting parameter reasonable, the wind-induced response of structures can be minimized. In this paper, the stationary and non-stationary random wind-induced response, dynamic reliability and optimization under the dynamic reliability constraint of structures with foundation rotation and tall building with TMD or TLD is studied systematically. Three achievements are gained. 1. According to the situation that Davenport wind spectrum is irrational fraction, theequivalent wind spectrum is generated by linear filtered process. 2. According to the situation that the mass and stiffness matrix of structures with foundation rotation and tall building with TMD or TLD are non-symmetry, the damping matrix is non-classical, the dynamic equations are disconnected by using complex mode theory. The analytic solutions of wind-induced response and dynamic reliability which expressed by the first mode and correspond to equivalent wind spectrum are given by using expanding rank method. The complex mode consensus analytic theory of 2-DOF dynamic system with non-symmetry mass and stiffness matrix and non-classical damping matrix, and the consensus analytic theory of the stationary and non-stationary random wind-induced response and dynamic reliability are established. 3. The new viewpoint of optimization under the dynamic reliability constraint of control equipment is advanced for the first time. Minimize the mean largest displacement of the structure considering of structure response constraint and control equipment constraint at the same time. The parameters of control equipment are optimized by using penalty function method. The control optimization theory under the dynamic reliability constraint of random wind-induced vibration of structures is established.