考虑一致危险性谱的核电厂房结构振动台试验研究

为得到适合特定核电厂所需要的反应谱，考虑具体的场地条件及地震动参数，采用随机模拟方法与概率危险性分析相结合的方式，建立了生成超越概率为10-4的一致危险性谱（UHS）的方法。为进一步研究核电结构的抗震性能及UHS在实际核电结构中的适用性，设计和制作了1∶20的核电厂房结构模型进行振动台试验，采用2条天然波及UHS、厂址谱（SL-2）、RG1.60谱所生成的人工波对结构的响应进行比对分析。结果表明，不同地震波对核电结构的响应有所差异，UHS生成的人工波对上部结构加速度放大效应以及位移影响较大，对应的楼层反应谱幅值相对其他反应谱较高，进行结构及设备抗震设计时应予以考虑。 

Shaking Table Test of Nuclear Power Plant Considering Uniform Hazard Spectrum

In order to obtain the response spectrum for the specific nuclear power plant (NPP), considering the specific site condition and ground motion parameters, the stochastic simulation and probabilistic hazard analysis is combined to obtain the UHS?which the probability of exceedance is 10-4. In order to verify the seismic performance and applicability of the spectrum in the actual structure, 1:20 NPP model is designed for shaking table test, comparing the structure response of two natural waves and two artificial waves which are generated by the safety evaluation spectrum and RG1.60 spectrum. The result shows that different wave has a different seismic isolation effect. The artificial wave generated by the UHS has a great effect on the acceleration amplification and the displacement of the NPP. The floor response spectrum amplitude?which caused by UHS is higher than other waves. It should be considered in the structure and equipment seismic design.