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三、隔震建筑的地震考验 目前,国内外已有一些隔震建筑经受了地震的考验。其中最突出的是在1994年美国洛杉矶北岭地震和1995年日本神户大地震中,隔震建筑显示了令人惊叹的隔震效果,经受了强震的检验。美国南加州大学医院是一栋8层钢结构房屋,体型复杂,采用铅芯橡胶垫隔震技术,1991年建成。在1994年1月6.8级北岭地震中经受了强烈地震的考验,震后照常履行医疗救护任务。地震时地面加速度为0.49g,而屋顶加速度仅为0.27g,衰减系数为1.8。而另一家按常规高标准设计的医院,地面加速度为0.82g,顶层加速度高达2.31g,放大倍数为2.8。在极震区内共有8座医院,其余7座均因地震破坏而关闭停
III. Seismic Test of Isolated Buildings At present, there are already some earthquake-isolation buildings at home and abroad that have stood the test of earthquakes. The most prominent of these was the isolation of buildings in the Beiling earthquake in Los Angeles in the United States in 1994 and the Kobe earthquake in 1995 in Japan. The University of Southern California Hospital is an eight-story steel structure housing complex with lead-core rubber shock isolation technology built in 1991. In the Northridge earthquake of 6.8 in January 1994, it underwent a severe earthquake and performed medical rescue missions as usual after the earthquake. The ground acceleration during the earthquake is 0.49g, while the roof acceleration is only 0.27g and the attenuation coefficient is 1.8. Another hospital designed according to the conventional high standards has a ground acceleration of 0.82g and a top-level acceleration of 2.31g with a magnification of 2.8. There are 8 hospitals in the polar area and the rest 7 are closed due to earthquake damage.