This paper introduces the conception
of seismic fragility, gives the model of seismic fragility analysis, and places
emphasis on discussing quantization process of seismic fragility parameters. Then,
establishes 3D model of pipes of Chinese Experimental Fast Reactor (CEFR) accident
residual heat removal system, and obtains the stresses which are essential for calculating
seismic fragility parameters. Finally, combined with quantitative methods of seismic
fragility, calculates the safety factors and uncertainties of CEFR pipeline, and
obtains the system seismic fragility parameters: Am=2.42g, βr=0.36, βu=0.44, HCLPF = 0.65g. The results show that:
the pipeline of CEFR accident residual heat removal system has high seismic capacity.
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