【摘要】 本文应用ANSYS有限元软件建立某大型直流电压发生器塔架结构的有限元分析模型,分别计算结构在正弦共振调幅五波、正弦共振三波、Taft地震波、El-Centro地震波和云南澜沧地震波5种地震动激励下的响应,以及结构在10m/s和35m/s两种风荷载工况下的响应。并按规范要求将上面两种计算结果与结构自身重力进行组合,计算结构在地震与风的共同作用下的安全系数。计算结果表明,对于该结构体系,地震作用要远大于风的作用,而在5种地震波中,正弦共振三波五波产生的地震反应要大于其它3种实测地震波产生的反应。更多还原

【Abstract】 A finite element model of DC voltage generator tower structure was established via the application of the finite element software ANSYS and the separate incentive responses under five amplitude modulation sine waves,Taft earthquake wave,El-Centro seismic wave,Yunnan Lancang seismic waves and three sine waves,were calculated by using this model as well as the responses under two types of wind load (10m/s and 35m/s) inputs.The results of the two above calculations with the factor of structure′s self gravity in conformity with the standard requirements were integrated and the interaction of seismic waves and wind load was calculated in the paper.Results indicate:for this structural system,the action of seismic waves is much greater than that of the wind;among the five types of seismic waves,the seismic response of five amplitude modulation sine waves and three sine waves are far more than the responses of the other three observed seismic waves.更多还原