TORSIONAL VIBRATION CHARACTERISTICS AND ANALYSIS OF EARTHQUAKE RESPONSE OF YINGXIAN WOODEN PAGODA
Measuring on Yingxian wooden pagoda demonstrates that the torsional component of the residual deformation is distinct. After the two historic earthquake periods, the traces of broken damages become evident. The trials by conducting micro-tremor measurements of the tower, obtained the time-history curves of measuring points of each upper floor. Also, horizontal modes of vibration corresponding to different predominant frequencies of every upper floor are obtained from frequency spectrum analysis. Study on the horizontal mode discovers that translation-torsion coupling response of the floors is distinct, as well as relative torsion between layers. The phenomena are consistent with the residual torsional deformation. The torsional elastic earthquake response of each upper layer of the tower under different seismic waves is also calculated and analyzed.
Yingxian Wooden tower torsional dynamic characteristics seismic response micro-tremor measurements
YAN Xu LI Tie-ying ZHANG Shan-yuan QIN Hui-min
College of Civil and Environmental Engineering, Taiyuan University of Technology, Shanx,China College of Civil and Environmental Engineering, Taiyuan University of Technology, Shanxi,China
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）