A wind field simulation program is created using the linear filtering method(AR method)to simu-late wind load vibrations on tall structures,based on the wind load characteristics acting on broadcasting and tel-evision transmission towers.The program synthesizes a wind speed time history curve that conforms to the Dav-enport spectrum.To demonstrate the program's effectiveness,a broadcasting and television transmission tower is used as an example in this paper.A finite element model is established,and the wind vibration response of the structure is calculated using SAP2000.The distribution characteristics of the wind vibration coefficient are compared under different calculation methods.The results show that for high-rise structures with sudden changes in mass stiffness,the wind vibration coefficient obtained by the time history analysis is in good agreement with the frequency domain analysis.This indicates that the frequency domain method considering multi-mode calcula-tion can be directly used to calculate the wind vibration response of broadcasting and television transmission tow-er.
万方数据
维普
