HTR-PM侧反射层结构相似模型抗震试验与分析  

Seismic Test and Analysis on HTR-PM Side-reflector Structure Similarity Model

作　　者：赖士刚[1] 孙立斌[1] 史力[1] 张征明[1] 张振声[1] 

机构地区：[1]清华大学核能与新能源技术研究院,先进核能技术协同创新中心,先进反应堆工程与安全教育部重点实验室,北京100084

出　　处：《原子能科学技术》2016年第4期691-697,共7页Atomic Energy Science and Technology

基　　金：国家科技重大专项资助项目(ZX06901)

摘　　要：采用石墨键榫系统连接固定的HTR-PM堆芯在地震下表现出非线性特征。为研究HTR-PM堆芯的非线性响应,清华大学核能与新能源技术研究院开展了堆芯侧反射层结构的1∶3相似模型抗震试验。试验模型由石墨砖、碳砖、石墨圆榫、方键和燕尾键组成。试验分下筒无球、下筒有球和全模型有球3种工况。每种工况分别施加白噪声、OBE、SSE等多种载荷。通过试验获得了侧反射层模型的模态、加速度动态响应、位移动态响应等结果。试验加载符合安全标准,堆内构件在地震载荷下的完整性得到验证。The core of HTR-PM which is fixed and connected with keys and dowels system,exhibits nonlinear characters under seismic loads.A seismic test of 1∶3 scaled side-reflector was conducted by Institute of Nuclear and New Energy Technology of Tsinghua University aiming to investigate the HTR-PM core nonlinear response.The model was made of graphite bricks,carbon bricks,graphite dowels and keys.Random loads,OBE loads,SSE loads were applied under conditions including lower-barrel without ceramic pebbles,lower-barrel with ceramic pebbles and whole model with ceramic pebbles.Thus,modes,acceleration dynamic responses and displacement dynamic responses are obtained.According with safety standards,the integrity of the HTR-PM core internals under seismic conditions is confirmed.

关 键 词：HTR-PM 侧反射层 抗震试验 相似模型 

分 类 号：TL341[核科学技术—核技术及应用]