Research on Seismic-isolated Nuclear Power Plant Structure

范世凯; 谭平; 刘德稳; 周福霖

doi:10.13409/j.cnki.jdpme.2015.05.020

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Research on Seismic-isolated Nuclear Power Plant Structure

更新时间：2025-12-11

- Research on Seismic-isolated Nuclear Power Plant Structure
- Vol. 35, Issue 5, Pages: 685-690(2015)
- 作者机构：
- 作者简介：
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- DOI：10.13409/j.cnki.jdpme.2015.05.020
  CLC： U352.12
- Published：2015
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[1]范世凯,谭平,刘德稳,周福霖.核电站结构隔震研究[J].防灾减灾工程学报,2015,35(05):685-690.

范世凯, 谭平, 刘德稳, et al. Research on Seismic-isolated Nuclear Power Plant Structure[J]. 2015, 35(5): 685-690.
[1]范世凯,谭平,刘德稳,周福霖.核电站结构隔震研究[J].防灾减灾工程学报,2015,35(05):685-690. DOI： 10.13409/j.cnki.jdpme.2015.05.020.

范世凯, 谭平, 刘德稳, et al. Research on Seismic-isolated Nuclear Power Plant Structure[J]. 2015, 35(5): 685-690. DOI： 10.13409/j.cnki.jdpme.2015.05.020.

摘要

建立了核电站CPR1000堆型反应堆厂房的混合分析模型

上部结构采用集中质点—梁单元

下部筏基采用三维实体单元模拟。完成了对典型核电站结构的基础隔震设计

隔震层设置在筏板基础底面

采用铅芯橡胶支座

支座长期面压控制在5 MPa;比较了隔震前后反应堆厂房的动力特性;基于时程分析法

研究了隔震效果

建立了结构内部设备楼层的楼层反应谱;对隔震前后结构水平向和竖向的楼层反应谱进行了对比分析。结果表明

对于核电站结构采用混合分析模型兼有较高的计算效率和精度;隔震后可明显降低结构的地震反应和楼层反应谱

大大提高结构的抗震安全性。

Abstract

This paper builds a mixed analytical model for based-isolated CPR1000 reactor structure

in which superstructure and raft foundation are modeled by lumped mass-beam elements and three-dimensional solid elements

respectively.A complete base isolation design of CPR1000 reactor structure is presented in this paper.The lead-rubber bearings are placed under the raft foundation.The surface pressure of lead-rubber bearings is about 5 MPa.The dynamic behavior of base-isolated reactor structure is investigated.Nonlinear time-history analysis of the isolated nuclear power plant structure is carried out.The shears and overturning moments of the based-isolated reactor structure are compared with the base-fixed structure.In addition

floor response spectrum of the base-isolated CPR1000 reactor structure is set up for analysis of the internal equipment and compared with the base-fixed case.Results show that the mixed analytical model for reactor structure possesses enough calculating efficiency and precision.Base-isolated technology can significantly reduce the shears

the overturning moments and the floor response spectrum of the reactor structure

and enhance its safety greatly.

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references

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基于功率谱密度函数法的核电厂房增加隔震措施后的楼层反应谱分析 [J]. 曾奔,周福霖,徐忠根. 核动力工程 . 2009(03)

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