深厚覆盖层上核岛厂房的动力响应研究  

STUDY OF DYNAMIC RESPONSE OF NUCLEAR ISLAND BUILDING ON DEEP OVERBURDEN LAYER

作　　者：邹德高[1,2] 隋翊 周晨光[1,2] 孔宪京[1,2] 

机构地区：[1]大连理工大学海岸和近海工程国家重点实验室,辽宁大连116024 [2]大连理工大学建设工程学部水利工程学院,辽宁大连116024

出　　处：《工业建筑》2016年第10期1-5,27,共6页Industrial Construction

基　　金：国家自然科学基金重点项目(51138001);地震行业科研专项经费项目(201208013)

摘　　要：随着中国核电的快速发展,适宜建设的岩性地基厂址逐渐减少,拓展非岩性地基抗震研究十分迫切。在考虑地基土的非线性动力特性,采用人工边界和等效结点荷载的地震动输入方法的基础上,分析地基与核岛厂房之间的动力相互作用,研究深厚覆盖层上核岛厂房的动力响应。结果表明:覆盖层地基对核岛厂房的动力响应影响十分明显,与岩性地质条件相比,厂房楼层反应谱峰值频率向低频方向发生了较大偏移。随地震动增强,楼层水平向反应谱峰值频率明显降低,但竖向反应谱峰值频率变化不大。因此,在进行深厚覆盖层地基上核电厂结构及核电设备抗震设计时应予以重点关注。With the rapid development of nuclear power plants in China,the resources of rock foundation are gradually decreased. Therefore it is necessary to carry out the seismic research on non-rock foundation location.Adopting the artificial boundary and equivalent node load approach,the dynamic interaction between nuclear island building and overburden was analyzed by taking the nonlinearity of soil into account. The results indicated that the foundation condition caused large influence on the floor response spectrum（ FRS） of the nuclear island building,to which much attention should be paid when the seismic design of nuclear power plant and equipments on the deep overburden layer was conducted.

关 键 词：核岛厂房 深厚覆盖层 人工边界 等效节点荷载 楼层反应谱 

分 类 号：TU311.3[建筑科学—结构工程]