摘要
基于积分变换、对偶方程与精细积分算法求解多层地基任意形状刚性基础的动力刚度,构建频域框架内的地基动力分析模型,以MATLAB为平台开发了相关软件。利用子结构法在对某百万千瓦级大型核电站进行了结构-地基相互作用分析,得到了该厂房的楼层反应谱。数值算例验证了动力刚度算法的准确性、可行性与工程适用性,对于复杂层状地基上的核电抗震设计具有指导意义。
The dynamic stiffness of rigid foundation with arbitrary shape in multi4 ayer foundation was solved by the integral transform,dual equation and precise integration algorithm,the dynamic analysis model of foundation were constructed in frequency domain,and the relative software was developed based on MTLAB platform.Through analyzing the structural-foundation interaction of a nuclear power plant with million kilowatt class by substructure method,we obtained the response spectrum of the floor of this plant.The numerical example verifies the accuracy,feasibility and engineering applicability of the dynamic stiffness algorithm,so the obtained result has the guiding significance for the seismic design of nuclear power plant on the complex layered foundation.
出处
《地震研究》
CSCD
北大核心
2016年第1期28-33,179,共6页
Journal of Seismological Research
基金
国家自然科学基金资助项目(51138001)
中央高校基本科研业务费专项资金(DUT15TD17)联合资助
关键词
层状地基
动刚度
核电抗震
楼层反应谱
multi-layered foundation
dynamic stiffness
seismic of the nuclear power plant
floor re sponse spectrum
