ABSTRACT

Elastic flexibility of a viscous damper sub-system can alter the phasing of damper and structural forces. This paper investigates how damper sub-system flexibility affects overall seismic response, using linear and nonlinear dampers. A suite of analyses with damped single degree-of-freedom systems show that a damper with significant flexibility can experience median peak displacements 40% higher than those of the same damper with rigid supports, depending on the added damping, damper sub-system stiffness, and period. To limit the impact of phasing effects, the damper sub-system stiffness should be 5–10 times the stiffness of the main lateral load resisting system.

摘要

粘性阻尼器子系统的弹性柔韧性可以改变阻尼器和结构力的相位。本文研究了阻尼器子系统的灵活性如何影响整体地震响应，使用线性和非线性阻尼器。一组带有阻尼单自由度系统的分析表明，具有显着柔韧性的阻尼器可以承受比具有刚性支撑的相同阻尼器高 40% 的中值峰值位移，具体取决于增加的阻尼、阻尼器子系统刚度、和时期。为了限制相位效应的影响，阻尼器子系统的刚度应该是主侧向承载系统刚度的 5-10 倍。