设计改进对核电站厂房楼层反应谱的影响分析  

Influence analysis of design improvement on FRS of the NPP building

作　　者：吴芳[1] 朱秀云[2] 辛国臣 

机构地区：[1]长春建筑学院土木工程学院,吉林长春130699 [2]环境保护部核与辐射安全中心,北京100082

出　　处：《地震工程与工程振动》2017年第4期181-188,共8页Earthquake Engineering and Engineering Dynamics

基　　金：吉林省教育厅"十三五"科学技术研究项目[2016]第540号~~

摘　　要：某核电站厂房由于工艺需要进行了设计改进,为保障厂房内核安全相关设备的抗震安全性,需要进行楼层反应谱的评估。考虑不同的场地动力数值模型,在均质场地和分层场地条件下,对比分析了此设计改进厂房与参考电站厂房的自振频率、典型的楼层反应谱及加速度响应。分析结果表明:此设计改进使厂房结构较参考电站偏柔性;在水平X方向及竖直Z向,典型楼层的反应谱峰值偏大,水平Y方向的典型楼层反应谱峰值偏小,且变化幅值均在10%以内。The design improvement of the NPP building is carried out due to the technology requirement. In order to ensure the seismic safety of the nuclear safety related equipment inside the building, the evaluation of floor response spectrum （FRS） is needed. In the condition of the uniform and layered site considering different dynamic numerical site models, the natural frequency of vibration and typical FRS and the acceleration response are calculated and analyzed between the improved NPP building and reference NPP building. The results show that i） ：the building is more flexible after design improvement, ii） in the horizontal direction X and the vertical direction Z, the peak of FRS is larger while the peak of FRS is smaller in the horizontal direction Y compared to the value of reference building, and the change amplitude is within 10%.

关 键 词：楼层反应谱 设计改进 土-结构相互作用 场地动力数值模型 

分 类 号：TL48[核科学技术—核技术及应用]