考虑结构-地基-结构相互作用的核电厂结构地震响应分析  

Seismic Response Analysis for Nuclear Power Plant Considering Structure Foundation Structure Interaction Effect

作　　者：尹训强[1] 袁文志 王桂萱[1] 

机构地区：[1]大连大学土木工程技术研究与开发中心,大连116622

出　　处：《核安全》2017年第3期68-74,共7页Nuclear Safety

基　　金：辽宁省教育厅科研项目;项目编号:L2013465;国家重大科技专项;项目编号:2011ZX06002-10

摘　　要：在实际核电厂项目中不同厂房在同一场地的现象非常普遍,因此对核电工程进行结构-地基-结构相互作用(SSSI)的研究是保证其安全的重要方面。该文首先从阻尼溶剂抽取法(DSEM)基本原理出发,推导出考虑相邻结构动力相互作用的结构-地基-结构交界面相互作用力,并运用UPFs二次开发工具,将SSSI时域分析模型嵌入到有限软件ANSYS中。最后,以工程实际为例,对反应堆厂房典型节点的楼层反应谱、加速度时程、位移时程以及沿高程的最大加速度变化曲线进行探讨。结果可为类似核电结构的抗震评估及优化设计提供依据。In the actual nuclear power plant project different plants exist in the same field is very common phenomenon,So the research on the structure-soil-structure interaction( SSSI) is the key to ensure the safety of the nuclear power project. In this paper,firstly,based on the basic damping solvent extraction method( DSEM),the interaction force between structure foundation structure is derived by considering the dynamic interaction of adjacent structures. And then the SSSI time domain analysis model is embedded into the finite software ANSYS based on User Programmable Features( UPFs). Finally,taking the engineering practice as an example,the floor response spectrum,acceleration time history,displacement time history,and the maximum acceleration curve along the height of the reactor building typical node are discussed. The results can provide provides the basis for similar nuclear power plant foundation in seismic adaptability evaluation and optimum design.

关 键 词：核电厂 结构-地基-结构相互作用 阻尼溶剂抽取法 楼层反应谱 

分 类 号：TU43[建筑科学—岩土工程]