１前言传统的抗震设计都是通过提高结构构件的强度和变形能力来保证结构抗震安全性的。结构的抗力与其强度和变形有关，而强度和变形的来积是衡量结构耗能能力的标志。但是将地震作用看成能量输入时，它是一个较稳定的量，主要与结构的总质量和基本自振周期有关。在传统设计方 1 Introduction The traditional seismic design is to ensure the seismic safety of the structure by increasing the strength and deformability of structural components. The resistance of a structure is related to its strength and deformation, and the product of its strength and deformation is a measure of the structure’s energy dissipation capacity. However, when seismic action is considered as energy input, it is a relatively stable quantity, which is mainly related to the total mass of the structure and the fundamental period of natural vibration. In traditional design