Recently, the interest in research for optimization of viscous dampers in design of buildings has been increasing. In this study, the effect of soil-structure interaction has been taken into account for the purpose of optimal design of viscous dampers. A damper optimization method based on a target damping ratio and interstorey drift ratio found in literature has been adapted for a building structure model considering different types of sandy soils. While passive constraints have been taken as upper and lower limits of each damper, active constraints have been considered as a target damping ratio in terms of damping coefficients. The proposed algorithm includes time history analyses that test the designer’s optimal design. Interstorey drift ratios under design earthquakes have been checked at each design step. The first and second mode responses have been considered separately. According to the results obtained from this study, the negative impact of sandy soils on the dynamic behavior of superstructures can be overcome by optimal placement of dampers in buildings. The results of the analyses have shown that soil effects should be taken into account in solving damper optimization problems.

近来，对于在建筑物设计中优化粘性阻尼器的研究的兴趣已经增加。在这项研究中，考虑了土-结构相互作用的影响，以优化设计粘性阻尼器。考虑到不同类型的砂土，基于文献中发现的基于目标阻尼比和层间漂移比的阻尼器优化方法已适用于建筑结构模型。尽管已将被动约束作为每个阻尼器的上限和下限，但就阻尼系数而言，主动约束已被视为目标阻尼比。所提出的算法包括时程分析，以测试设计师的最佳设计。在每个设计步骤都检查了设计地震下的层间漂移率。已经分别考虑了第一模式响应和第二模式响应。根据这项研究的结果，可以通过在建筑物中放置阻尼器来克服沙质土壤对上部结构动力特性的负面影响。分析结果表明，在解决阻尼器优化问题时应考虑土壤效应。