论文部分内容阅读
采用厚层橡胶支座对核电厂反应堆厂房进行竖向隔震,可以使楼层反应谱峰值向低频移动到约2~4 Hz的范围内,有效地避开大部分设备和管道的固有频率范围(约10~15 Hz),降低竖向地震对核电结构内部设备和管道的损伤。对厚层橡胶支座的相关性能进行试验研究,分别设计制作厚层橡胶支座和普通橡胶支座,并参考规范对2种橡胶支座进行力学性能检测,包括隔震支座剪切刚度和压缩刚度试验,比较二者性能之间的差别。结果表明,厚层橡胶支座具有与普通橡胶支座相近的剪切性能,在竖向具有大变形能力,竖向刚度约为普通橡胶支座的1/8,可以作为新型三维隔震装置的承载元件。
The use of a thick rubber bearing to vertically isolate the reactor building of a nuclear power plant can shift the peak of the floor response spectrum to a low frequency range of about 2 to 4 Hz and effectively avoid the natural frequency range of most equipment and pipelines About 10 ~ 15 Hz) to reduce the damage caused by vertical earthquakes to the equipment and pipelines inside the nuclear power structure. The relative performance of thick rubber bearing was tested and studied. Thick rubber bearings and common rubber bearings were designed and manufactured respectively. The mechanical properties of the two kinds of rubber bearings were tested with reference to the specifications, including the shear stiffness of isolation bearings and Compression stiffness test to compare the difference between the two performance. The results show that the thick rubber bearing has the similar shear properties as the ordinary rubber bearing and has a large deformation capacity in the vertical direction. The vertical stiffness is about 1/8 of that of the ordinary rubber bearing, which can be used as a new type of 3D seismic isolation device Carrying elements.