The Tall Building Wind Vibration Reduction Optimization Design Based On The Damping

With the rapid development of contemporary social economy and science and technology level, a lot of high-rise buildings appear in front of people. But the design of high-rise building there are still many issues worthy of discussion and research. Wind load for high-rise building one of the main level of dynamic load, the level of dynamic response of high-rise building has very main effect. Compared with the seismic load and wind load in engineering application is lack of the attention it deserves. With light mass, small stiffness, layer number of high-rise buildings, especially in low intensity, the coastal areas of super-tall buildings, wind load of building is far greater than the influence of seismic load. So for high-rise building wind load there is a pressing need for further research and design and engineering application value.In this paper, wind vibration in high-rise building design requirements, refer to a large number of literature at home and abroad, adopts the time domain analysis methods for high-rise building wind load time history analysis are introduced, and further puts forward the optimization design based on the damping of the high-rise building wind general method. This article main research content has the following several aspects:â‘ The numerical simulation of wind load. According to high-rise building wind load calculation theory, the pulsation wind load as a stationary gaussian random process. Choose linear regression method, the filtering method of converting Davenport wind speed spectrum of wind load time history, and then realize the high-level structure within the scope of the wind vibration time history analysis in time domain.â‘¡Viscous dampers for structural vibration control. Of viscous dampers in the structure, working principle and mechanical model were analyzed, and through experiment data about viscous damper damping energy dissipation effect.â‘¢Taking a practical super-tall building as an example, through computer simulation, and extract the wind tunnel test data, generate the wind load time history data, then use Etabs program large-scale finite element analysis software for the building before and after adding viscous dampers of the wind vibration time history analysis. Compared with damper at the top of before and after the modification parameters such as maximum acceleration, in accordance with the comfort level to evaluate reliability standard. Further validation of viscous dampers in wind-induced vibration response under the effect of energy consumption.