【摘要】 以明置于室内地面上的大型直流电压发生器塔架结构的抗震计算为例,分别计算结构在正弦共振调幅5波、正弦共振3波、El Centro地震波、Taft地震波和云南澜沧地震波5种激励下的响应,讨论了输入不同地震波对结构地震反应的影响及不同Rayleigh阻尼模型下的动力响应特性,最后对这类结构的输入地震动及Rayleigh阻尼模型的选择提出建议。更多还原

【Abstract】 With the rapid development of electric power facilities,seismic design research of high voltage electrical equipment has become one of the important topics in seismic research at home and abroad.Taking the time history analysis of large-scale DC voltage generator tower structure,which is located on indoor ground,as an example,the separate incentive responses under five amplitude modulation sine waves,three sine waves,EI Centro seismic ground motion,Taft seismic ground motion and Yunan Lancang seismic ground motion are calculated in this paper.The influence of different input ground motion on seismic response of the structure and dynamic performance under different Rayleigh damping models are discussed.Some suggestions on seismic input and choice of Rayleigh damping models for this type of structure are proposed at the end of this paper.更多还原