ABSTRACT

Direct displacement-based seismic design has been proposed for pallet-type steel storage racks. Damping models are developed in this study for pallet-type steel storage racks in the down-aisle and cross-aisle directions for use in direct displacement-based seismic design. The damping models are developed using results from reversed cyclic tests at a component level or at a system level. Jacobsen’s approach is used to develop a first set of damping models. The damping models are then assessed using results from nonlinear time-history analyses. Finally, the damping models are calibrated using an iterative procedure based on results from nonlinear time-history analyses.

摘要

针对托盘式钢制货架提出了基于直接位移的抗震设计。本研究开发了沿过道和过道方向的托盘式钢制货架的阻尼模型，用于基于直接位移的抗震设计。阻尼模型是使用组件级别或系统级别的反向循环测试的结果开发的。Jacobsen 的方法用于开发第一组阻尼模型。然后使用非线性时程分析的结果评估阻尼模型。最后，使用基于非线性时程分析结果的迭代程序校准阻尼模型。