引言照明设备和其他附属设备的动力反应对这些部件和主体结构的性能非常敏感。如果附属设备的固有周期之一与主体结构的固有周期之一接近,则相应的反应显著放大;附属设备质量与主体结构质量之比越小,放大系数越大。地震动是由其反应谱来确定其性 Introduction The dynamic response of lighting equipment and other ancillary equipment is very sensitive to the performance of these components and the main structure. If one of the intrinsic cycles of the accessory device is close to one of the intrinsic cycles of the body structure, the corresponding response is significantly amplified; the smaller the ratio of the quality of the accessory device to the mass of the body structure, the larger the amplification factor. Ground motion is determined by its response spectrum