This paper presents a displacement-based seismic design method for building structures equipped with viscoelastic dampers (VEDs) featuring strong nonlinear characteristics. First, major insights from recent analytical and experimental research on this type of VEDs, including their behavior and sources of nonlinearity, are briefly introduced. Then, a simplified response spectra-based method for estimation of the peak seismic response of the structure without and with VEDs is proposed. Here, the undamped and damped structures are reduced to equivalent single-degree-of-freedom (SDOF) systems through linearization procedures. The simplified analysis method allows for the assessment of the effects of VEDs on the structural response through a set of analytical expressions formulated in terms of two parameters controlling the design of the dampers: (1) the VED design strain; and (2) the stiffness ratio of the dampers to the main structure. In the displacement-based design procedure proposed here, the VED design strain is obtained from response history analyses of the base frame, whereas the stiffness ratio is determined through iterative calculations based on the simplified analysis method. Then, the design parameters are extended to the multi-degree-of-freedom (MDOF) system of the actual structure and VEDs are sized at each story. Finally, verification of the design layout is done through nonlinear time-history analysis. The use of time domain analysis procedures and simplified analysis tools to find the design parameters of the dampers provide the proposed methodology with a balance between accuracy and effectiveness. To illustrate the design process, the paper concludes with a design example of supplemental VEDs for the seismic retrofit of a 7-story reinforced concrete frame building.

本文提出了一种基于位移的抗震设计方法，用于配备具有强非线性特性的粘弹性阻尼器 (VED) 的建筑结构。首先，简要介绍最近对此类 VED 的分析和实验研究的主要见解，包括它们的行为和非线性来源。然后，提出了一种基于简化响应谱的方法，用于估计没有和有 VED 的结构的峰值地震响应。在这里，无阻尼和阻尼结构通过线性化程序被简化为等效的单自由度 (SDOF) 系统。简化的分析方法允许通过根据控制阻尼器设计的两个参数制定的一组分析表达式来评估 VED 对结构响应的影响：(1) VED设计应变；(2) 阻尼器与主体结构的刚度比。在这里提出的基于位移的设计程序中，VED 设计应变是从基础框架的响应历史分析中获得的，而刚度比是通过基于简化分析方法的迭代计算来确定的。然后，将设计参数扩展到实际结构的多自由度 (MDOF) 系统，并在每个楼层确定 VED 的大小。最后，通过非线性时程分析完成设计布局的验证。使用时域分析程序和简化的分析工具来寻找阻尼器的设计参数，为所提出的方法提供了准确性和有效性之间的平衡。为了说明设计过程，