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一、引言本方法用于确定高耸建筑的固有频率和相应的振型。因为很难对这类建筑物进行人工激振,曾努力去探求有足够灵敏度的仪器,以便即使在很低的激震水平下
I. INTRODUCTION This method is used to determine the natural frequencies and corresponding modes of tall buildings. Because it is difficult to artificially stimulate such buildings, efforts have been made to find instruments with sufficient sensitivity so that even at a very low level of shock