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隔震的原理隔震的基本思路非常简单,就是在建筑物与基础之间设置一个柔软的隔震层,减小地震动对隔震层以上结构的影响。当建筑受到地震袭击时,地面运动会从基础开始向上传播并被逐渐放大。这样一来,不但结构本身很容易被损坏,建筑设备和室内家具等也都很容易被损坏(见图1a)。在隔震建筑中,由于隔震层在水平方向比较柔软,变形主要集中这里(见图1b),于是产生三方面效果:
The principle of isolation The basic idea of isolation is very simple, that is, a soft isolation layer is set up between the building and the foundation to reduce the influence of ground motion on the structure above the isolation layer. When a building is struck by an earthquake, ground motion spreads upward from the foundation and is gradually enlarged. In this way, not only the structure itself is easily damaged, but also the construction equipment and the interior furniture are easily damaged (see FIG. 1a). In the isolated buildings, the isolation layer is relatively soft in the horizontal direction, and the deformation is mainly concentrated here (see Fig. 1b), resulting in three aspects: