automatic Post-processing method of Massive Seismic Responses from Probabilistic Seismic Analysis for Performance-based Seismic design and Computer program

The present invention provides an automatic post-processing procedure when processing large-capacity results obtained from probabilistic seismic analysis of nuclear facilities, thereby capable of producing/extracting subsequent seismic design input data, and contributing to performance-based seismic design and probabilistic seismic risk analysis of structures, systems and devices. The automatic post-processing method for large-capacity seismic response of stochastic seismic analysis includes steps of: setting a kth node existing in a nuclear power plant; calculating a relative acceleration for seismic motion at the kth node; calculating a relative displacement value for the relative acceleration at the kth node using an inverse Fourier transform equation; calculating absolute displacement and absolute acceleration based on the relative displacement value; calculating an acceleration response spectrum at the kth node of the absolute displacement value and the absolute acceleration; calculating zero-period acceleration values and layer displacements of the first to nth nodes; extracting a stochastic floor response spectrum according to the number of design input variables; extracting a stochastic floor response displacement (seismic anchor motion) according to the number of design input variables; and determining safety of the nuclear power plant. 본 발명은 원자력 시설의 확률론적 지진해석으로부터 구해지는 대용량 결과의 처리 시 자동화된 후처리 절차를 제공함으로서, 후속의 내진설계 입력자료를 생산/추출하며, 구조물, 계통 및 기기의 성능기반 내진설계 및 확률론적 지진위험도분석에 기여할 수 있다.