INFLUENCE OF UNCERTAINTY OF ROCK PROPERTIES ON SEISMIC RESPONSES OF REACTOR BUILDINGS

• 作 者: 李忠诚 李忠献
• 机 构: SCHOOL OF CIVIL ENGINEERING TIANJIN UNIVERSITY TIANJIN 300072,CHINA,CHINA GUANGDONG NUCLEAR POWER CO
• 出 处: Transactions of Tianjin University
• 发表日期: 2006年01期
• 关键词: SCOPE WAVE RATIO DYNAMIC 竺里 SIMPLE ANALY GUIDE DIFFE 刃一

THE INFLUENCE OF THE DISPERSION AND UNCERTAINTY OF THE DYNAMIC SHEAR WAVE VELOCITY AND POISSON’S RATIO OF SOIL IN A HARD ROCK SITE WAS INVESTIGATED ON THE SEISMIC RESPONSE OF REACTOR BUILDING STRUCTURE. THE ANALYSIS IS PERFORMED BY CONSIDERING THE SOIL-STRUCTURE INTERACTION EFFECTS AND BASED ON THE MODEL OF THE REACTOR BUILDING IN A TYPICAL PRESSURIZED WATER REACTOR NUCLEAR POWER PLANT (NPP). THE NUMERICAL RESULTS SHOW THAT FOR THE TYPICAL FLOOR SELECTED, WHILE THE RELATIVE INCREMENT RATIO OF THE DYNAMIC SHEAR WAVE VELOCITY VARIES FROM - 30 % TO 30 % COMPARED TO THE BASIS OF 1 930 M/S, THE RELATIVE VARIATION OF THE HORIZONTAL RESPONSE SPECTRA PEAK VALUE LIES IN THE SCOPE OF ±10% FOR THE INTERNAL STRUCTURE, AND THE RELATIVE VARIATION OF THE FREQUENCY CORRESPONDING TO THE SPECTRA PEAK IS 0. 0% IN MOST CASES. THE RELATIVE VARIATION OF THE VERTICAL RESPONSE SPECTRA PEAK VALUE LIES IN THE SCOPE OF - 10% TO 22%, AND THE RELATIVE VARIATION OF THE FREQUENCY CORRESPONDING TO THE SPECTRA PEAK LIES IN THE SCOPE OF - 22% TO 4%. THE ANALYSIS INDICATES THAT THE DYNAMIC SHEAR WAVE VELOCITY AND THE POISSON’S RATIO OF THE ROCK WOULD AFFECT THE SEISMIC RESPONSE OF STRUCTURE AND THE SOIL-STRUCTURE INTERACTION EFFECTS SHOULD BE CONSIDERED IN SEISMIC ANALYSIS AND DESIGN OF NPP EVEN FOR A HARD ROCK SITE.

THE INFLUENCE OF THE DISPERSION AND UNCERTAINTY OF THE DYNAMIC SHEAR WAVE VELOCITY AND POISSON’S RATIO OF SOIL IN A HARD ROCK SITE WAS INVESTIGATED ON THE SEISMIC RESPONSE OF REACTOR BUILDING STRUCTURE. THE ANALYSIS IS PERFORMED BY CONSIDERING THE SOIL-STRUCTURE INTERACTION EFFECTS AND BASED ON THE MODEL OF THE REACTOR BUILDING IN A TYPICAL PRESSURIZED WATER REACTOR NUCLEAR POWER PLANT (NPP). THE NUMERICAL RESULTS SHOW THAT FOR THE TYPICAL FLOOR SELECTED, WHILE THE RELATIVE INCREMENT RATIO OF THE DYNAMIC SHEAR WAVE VELOCITY VARIES FROM - 30% TO 30% COMPARED TO THE BASIS OF 1 930 M / S, THE RELATIVE VARIATION OF THE HORIZONTAL RESPONSE SPECTRA PEAK VALUE LIES IN THE SCOPE OF ± 10% FOR THE INTERNAL STRUCTURE, AND THE RELATIVE VARIATION OF THE FREQUENCY CORRESPONDING TO THE SPECTRA PEAK IS 0. 0% IN MOST CASES. THE RELATIVE VARIATION OF THE VERTICAL RESPONSE SPECTRA PEAK VALUE LIES IN THE SCOPE OF - 10% TO 22%, AND THE RELATIVE VARIATION OF THE FREQUENCY CORRESPONDING TO THE SPECTRA PEAK L I ANALYSIS IN THE SCOPE OF - 22% TO 4%. THE ANALYSIS INDICATES THAT THE DYNAMIC SHEAR WAVE VELOCITY AND THE POISSON’S RATIO OF THE ROCK WOULD AFFECT THE SEISMIC RESPONSE OF STRUCTURE AND THE SOIL-STRUCTURE INTERACTION EFFECTS SHOULD BE CONSIDERED IN SEISMIC ANALYSIS AND DESIGN OF NPP EVEN FOR A HARD ROCK SITE.