ABSTRACT

Direct displacement-based seismic design has been recently proposed for the seismic design of non-structural building elements. This paper deals with the development of damping models, relating equivalent viscous damping ratio to drift amplitude, for suspended piping trapeze restraint installations for direct displacement-based seismic design. The damping models are developed using reversed cyclic test data available in the literature. First, damping models are proposed using Jacobsen’s equal area approach. The damping models developed using Jacobsen’s approach are then assessed and calibrated using nonlinear time history analyses of single degree-of-freedom archetypes representing suspended piping trapeze restraint installations in buildings.

摘要

最近提出了基于直接位移的抗震设计，用于非结构建筑构件的抗震设计。本文涉及阻尼模型的开发，将等效粘性阻尼比与漂移幅度联系起来，用于基于直接位移的抗震设计的悬挂管道梯形约束装置。阻尼模型是使用文献中可用的反向循环测试数据开发的。首先，使用 Jacobsen 的等面积方法提出了阻尼模型。使用 Jacobsen 的方法开发的阻尼模型然后使用代表建筑物中悬挂管道梯形约束装置的单自由度原型的非线性时间历史分析进行评估和校准。