摘要
以7 200 kV冲击电压发生器的抗震计算为例,对《建筑抗震设计规范》和《电力设施抗震设计规范》所要求的三种地震动输入进行了作用效应对比分析。考虑到采用正弦共振3波和正弦共振调幅5波作为地震动输入,主要是用于基于楼面谱设计的电气设备的抗震设计,因此按正弦共振3波和正弦共振调幅5波作为地震动输入进行抗震设计,对直接支承在地基上的大型电力设备的结构强度提出了过高的要求。最后建议对于直接支承在地基上的大型电力设施的抗震计算,其采用的地震动输入可以与一般的工业民用建筑抗震设计所采用的地震动输入相同。
Taking the time history analysis of a 7200kV impulse voltage generator as an example, this paper presents the load effects caused by three different types of earthquake wave inputs on the large-scale electric power establishment comparatively. Since three resonance sine waves and five amplitude modulation resonance sine waves taken as two types of load eases in seismic design of electric installations are based on the seismic design of electric facilities which are beard on brackets from the point of floor spectra, it is not necessary that those two load eases should apply to the seismic design of big-scale electric power establishment directly beard on the ground since it demands too high strength of the structure.
出处
《结构工程师》
2008年第4期80-84,共5页
Structural Engineers
关键词
冲击电压发生器
内框架
外框架
共振正弦3波
共振正弦调幅5波
El-Centro地震波
impulse voltage generator, inner frame, outer frame, three resonance sine waves, five amplitude modulation resonance sine waves, El-Centro earthquake wave
