1前言防震结构主要分为两类，即高抗力结构和振动控制结构；后一类又分为两小类，即主动控制和包括基底隔震技术的被动控制．这一分类说明了两类防震结构的特点。众所周知，加强结构抗力的办法不可避免地会导致结构需要较大的质量，因而在高地震危险区会受到较大的地震力．另外 1 Introduction Earthquake-proof structures are mainly divided into two categories, namely, high-resistance structures and vibration control structures; the latter category is further divided into two sub-categories: active control and passive control including base-isolation technology. This classification illustrates the characteristics of the two types of shockproof structures. As we all know, the method of strengthening the structural resistance will inevitably lead to the structure needs a greater quality, and therefore will be subject to greater seismic forces in high seismic risk areas. In addition