核安全2026，Vol.25Issue(1)：60-68,9.
核电设备地震易损度混合分析法的改进
Improvement on the Hybrid Method for Seismic Fragility of Nuclear Power Plant Equipment
汤昱川 1张思敏 1孙凤2
作者信息
- 1. 东南大学土木工程学院,南京 210012
- 2. 中核能源科技有限公司,北京 100193
- 折叠
摘要
Abstract
This paper introduces the hybrid method for computing the seismic fragility of equipment in nuclear power plants,and analyzes the potential errors in seismic capacity and fragility due to employing the hybrid method.It also presents the improved hybrid method which has been developed overseas in recent years to correct the biases.However,the discussions on the hybrid method and the improved hybrid method in foreign literature are almost limited to the simplified expression where the elastic strength factor is linear.Taking the shear-tension interaction failure mode of the critical anchor bolt of a daily fuel tank as an example,this paper discusses about the application of both methods in case of a relatively complicated situation that involves a nonlinear formulation of the elastic strength factor.In comparison with the results from the conventional hybrid method,this paper shows that the improved hybrid method can estimate the seismic fragility of equipment more accurately while maintaining the advantage of simple and easy calculations.关键词
地震易损度/混合法/改进混合法/锚固螺栓/剪拉破坏Key words
seismic fragility/hybrid method/improved hybrid method/anchor bolt/shear-tension interac-tion failure分类
资源环境引用本文复制引用
汤昱川,张思敏,孙凤..核电设备地震易损度混合分析法的改进[J].核安全,2026,25(1):60-68,9.
