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高桩墩系由桩台和基桩两部分组成,是空间结构体系。 以往,在对高桩墩的抗震分析中,一般是将桩台简化成单质点或多质点体系,按反应谱方法确定单向水平地震下的水平地震荷载。但是,实际采用的桩台一般均具有较大的空间尺度和结构刚度(与基桩相比),因此,本文采用弹性柱(桩)支承空间刚体(桩台)的计算简图,以确定高桩墩的动力特性;在确定地震荷载
The high-pile pier consists of two parts: the pile platform and the foundation pile, which is a space structure system. In the past, in the anti-seismic analysis of high pier, it is common to simplify the pile table to a single mass point or multi-mass point system, and to determine the horizontal seismic load under one-way horizontal earthquake according to the response spectrum method. However, the actual pile foundations generally have larger space scales and structural rigidity (compared with the foundation pile). Therefore, the calculation diagram of the elastic rigid columns (pile) supporting the space rigid body (pile foundation) is adopted in this paper to determine the height Dynamic characteristics of pile pier; in determining earthquake load