Oscillation Response of Museum Cultural Relics under Earthquake by Shaking Table Tests
To protect movable cultural relics,by shaking table tests oscillation responses of museum free-standing cultural relics under earthquakes were studied.Based on actual sizes of a museum showcase,a 1:1 scale model was built whose bottom was fixed on the shaking table.A bronze cultural relic was put in the showcase by free-standing mode.By white noise excitation frequency distributions of the showcase were obtained;By inputting 3 different types of earthquake waves (El-centro wave,Taft wave and Artificial wave of II site classification) with different intensities (O.1g,0.2g and 0.4g of peak ground accelerations)，seismic responses of both showcase and relic were studied, their damage types were discussed, displacement as well as acceleration response curves of typical positions were analysed as we1l.Results show that prominent frequency ingredients of the showcase are between 30-40Hz,which are far from those of input earthquake waves,thus the showcase is not damaged seriously;while for the relic when input earthquake intensity is low,its main damage symptom is oscillation;when earthquake intensity increases,the oscillation response becomes very serious and the relic is prone to overturn and get destroyed.
移动文物 振动台试验 地震波 损伤破坏
Qian Zhou Weiming Yan
Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit,Beijing University of Techn Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit,Beijing University of Techn
国内会议
太原
英文
1-8
2011-07-01（万方平台首次上网日期，不代表论文的发表时间）