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鹿岛建设公司(社长鹿岛昭一)1987年8月24日公布研制成功既便发生再大地震也能把加速度控制在70伽(中震)以下的高性能地面避震系统“鹿岛地面隔离系统”。该系统是一种只把中高层建筑物的计算机房等的地面部分作为避震结构的新设计,它通过滚珠轴承和研钵状托盘组合而成的独立支承取得了高性能的避震效果。价格为1平方米10万日元左右。地面避震系统是使部分地面成为避震结构,来控制地震时的摇动,防止计算机等仪器倾倒、损伤等。其特点是在安装计算机机器的地面的支承部采用滚珠轴承和稍有斜度(0.7度)
Kashima Construction Co., Ltd. (President Kashima Shoichi) announced on August 24, 1987 the successful development of a high-performance ground suspension system capable of controlling accelerations below 70 Gy (moderate) in the event of a major earthquake. “Kashima Ground Isolation system. ” The system is a new design that uses only the ground portion of a computer room, etc. in medium-to-high-rise buildings as a shock-absorbing structure. It achieves high-performance shock absorption through independent support formed by combining a ball bearing and a bowl-shaped tray. The price is about 1 square meter 100,000 yen. Ground suspension system is to make part of the ground into the shock structure to control the shaking of the earthquake, to prevent the dumping of computers and other equipment, damage and so on. It features a ball bearing and a slight pitch (0.7 degrees) on the ground bearing of the computerized machine,