核电厂混凝土安全壳的地震可靠性分析
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摘要
本文给出了自重和地震作用下核电厂混凝土安全壳的可靠性分析方法。首先基于半解析有限环元法和随机振型分析法,用首超概率给出了给定系统参数时安全壳的条件极限状态概率,然后基于此概率用推广的一次二阶矩法求解了考虑系统参数不确定性的安全壳极限状态概率。一个预应力混凝土安全壳的实例分析表明,系统参数的不确定性对安全壳的可靠性有重要影响。
The reliability analysis of concrete containment structures subjected to combination of static and earthquake loads is presented. At first,the conditional limit state probability for given parameters is calculated then based on it the limit state probability with consideration of parameter uncertainties is computed by using advanced first order second moment method. As an example a prestressed concrete containment is analyzed. The results show that the parameter uncertainties have significant influence on the containment reliability and should be considered in reliability analysis.
The reliability analysis of concrete containment structures subjected to combination of static and earthquake loads is presented. At first,the conditional limit state probability for given parameters is calculated then based on it the limit state probability with consideration of parameter uncertainties is computed by using advanced first order second moment method. As an example a prestressed concrete containment is analyzed. The results show that the parameter uncertainties have significant influence on the containment reliability and should be considered in reliability analysis.
引文
1． Shinozuka M et al. Reliability Assessment of Reinforced Concrete Containment Structures. Nuclear Engineering and Design,1984,80(2) .
2． 江近仁,赵衍刚,孙爱荣.核电厂安全壳可靠性分析.核电厂结构及系统可靠性分析Ⅰ:国家地震局工程力学研究所研究报告.1990．
3． 江近仁,赵衍刚,孙景江.考虑参数不确定性的核电厂结构可靠性分析Ⅱ:国家地震局工程力学研究所研究报告.1990．
4． 赵衍刚,江近仁.双曲线冷却塔的动力分析.地震工程与工程振动.1994,14(1) .
5． 江近仁,陆钦年.多自由度滞变结构随机地震反应分析的均值反应谱方法.地震工程与工程振动.1984,4(4) .
6． Wen Y K and HC Chen. On Fast Integration for Time Variant Structural Reliability. Probabilistic Engineering Mechanics 1987,2(3) .
7． 赵衍刚,江近仁.一个推广的一次二阶矩方法.地震工程与工程振.1992,12(4) .
8． Ellingwood B. and H Hwang. Probabilistic Description of Resistance of Safety-Related Structures in Nuclear Plants. Nuclear Engineeing and Design, 1985,88(2) .
9． Sues R H et al. Stochastic Seismic Performance Evaluation of Buildings. UILU-ENG-83-2008,1983．
10． 江近仁,陆钦年,孙景江.强震运动加速度反应谱的统计特性.世界地震工程.1988(2) .
2． 江近仁,赵衍刚,孙爱荣.核电厂安全壳可靠性分析.核电厂结构及系统可靠性分析Ⅰ:国家地震局工程力学研究所研究报告.1990．
3． 江近仁,赵衍刚,孙景江.考虑参数不确定性的核电厂结构可靠性分析Ⅱ:国家地震局工程力学研究所研究报告.1990．
4． 赵衍刚,江近仁.双曲线冷却塔的动力分析.地震工程与工程振动.1994,14(1) .
5． 江近仁,陆钦年.多自由度滞变结构随机地震反应分析的均值反应谱方法.地震工程与工程振动.1984,4(4) .
6． Wen Y K and HC Chen. On Fast Integration for Time Variant Structural Reliability. Probabilistic Engineering Mechanics 1987,2(3) .
7． 赵衍刚,江近仁.一个推广的一次二阶矩方法.地震工程与工程振.1992,12(4) .
8． Ellingwood B. and H Hwang. Probabilistic Description of Resistance of Safety-Related Structures in Nuclear Plants. Nuclear Engineeing and Design, 1985,88(2) .
9． Sues R H et al. Stochastic Seismic Performance Evaluation of Buildings. UILU-ENG-83-2008,1983．
10． 江近仁,陆钦年,孙景江.强震运动加速度反应谱的统计特性.世界地震工程.1988(2) .
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