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垫层桩基对上部结构减震的有效性已为1960年智利的强烈地震所证实。国内外对这一工程课题的研究多限于中间垫层对桩基或刚性建筑的减震作用。本文通过对使用中间垫层桩基的非刚性建筑物模型的正交试验和理论分析,得出垫层桩基在强烈地震时对桩及上部结构具有明显减震作用的结果。文中并探讨了中间垫层对桩基和上部结构的减震作用的机理。
The effectiveness of cushioning of pile foundations on the superstructure has been confirmed by the strong earthquake in Chile in 1960. The research on this project subject at home and abroad is mostly limited to the cushioning effect of the intermediate cushion on the pile foundation or rigid building. In this paper, through the orthogonal test and theoretical analysis of the non-rigid building model using the intermediate cushion foundation, the results of the cushioning effect of the cushion pile foundation on the pile and the superstructure during the strong earthquake are obtained. In this paper, the mechanism of the cushioning effect of the intermediate cushion on the pile foundation and the superstructure is discussed.