SHAKING TABLE TESTS OF A FREESTANDING CULTURAL RELIC STRENGTHENED BY MAGNET BLOCKS
To find an effective strengthening method for free-standing museum cultural relics,seismic performances of a cultural relic strengthened by magnet blocks were studied by shaking table tests.Based on actual sizes of a museum showcase,a 1∶1 scale model was built.A ceramic cultural relic was put in the showcase by free-standing mode.2 magnet blocks were considered to strengthen the relic and shaking table tests were carried out.By white noise excitation basic frequency of the showcase was obtained; by inputting 3 different types of earthquake waves (El-centro wave,Taft wave and Artificial wave of Ⅱ type site classification) with different intensities (0.1 g,0.2g,0.4g and 0.Tg of peak ground acceleration values),seismic responses of both showcase and relic were studied,aseismic results of magnet blocks were discussed:Results show that prominent frequency ingredients of the showcase are far greater than those of the input earthquake waves,thus the showcase is not damaged seriously; for the relic after it is strengthened by magnet blocks,its peak displacement and acceleration response values decrease,which still embody obviously under strong earthquakes.Thus by magnet blocks the relic can be effectively strengthened.
Free-standing cultural relic aseismic strengthening magnet blocks shaking table tests
Qian Zhou Weiming Yan Jinbao Ji
Palace Museum, Beijing 100009,P.R.China; Beijing Key Laboratory of Earthquake Engineering and Struct Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Tech
国际会议
The Twelfth International Symposium on Structural Engineering (第十二届结构工程国际研讨会)
武汉
英文
1077-1083
2012-11-17（万方平台首次上网日期，不代表论文的发表时间）