中文摘要：

提出一种剪切型结构基于损伤的新型抗震设计方法．鉴于以往针对结构最大位移模式的研究没有考虑低周疲劳累积损伤的影响，对若干典型剪切型多自由度体系进行太量弹塑性时程分析，探讨了当最大层间损伤达到某一确定值时结构沿竖向楼层的最大位移分布模式，提出了不同周期结构的最大位移分布计算公式；结合规范设计反应谱建立了等延性屈服点谱，提出了基于最不利楼层容许损伤和结构整体目标延性的抗震设计方法和步骤．算例分析表明．按该方法进行结构设计，能有效控制结构最不利楼层的损伤和结构整体延性，确保实现“大震不倒”的抗震设计目标．

英文摘要：

A new seismic design method of shear structures based on damage is proposed in this article. In the previous research, maximum displacement distribution profile used in the seismic design doesn＇t take into account the role of low cycle fatigue, so in this article by doing lots of time history analysis on several typical shear MDOF systems, characters of maximum displacement distribution profile along vertical floors when certain floor reaches the allowable maximum damage index are investigated. The results reveal that short -period and long-period structures show different displacement distribution modes. Formula that are used to estimate the maximum displacement distribution profile is proposed. Yield point spectrum with constant ductility is built combined with design spectrum of Chinese seismic design code. Then a new design method based on allowable damage value of the most adverse floor and target ductility of the whole structure is proposed. Example shows that this method can bring under control both the maximum damage value of floor and the deformation of whole structure, so the design object of ＂not collapse in seldom rare earthquake＂ can be realized.