ABSTRACT

The methodology of installing energy dissipation devices is a key point in structural seismic design. This paper proposes three novel hierarchical energy dissipation (HED) systems, using miniature bar-typed structural fuses (MBSFs) of different installation constructions, i.e., making MBSF lengths varied, installing Belleville springs, and enabling the anchor device to slide frictionally. Verification tests and corresponding simulations were conducted to examine the feasibilities of these constructions. The results showed that BSC and FSC systems dissipated energy hierarchically as expected. Time-history dynamic analysis on single-degree-of-freedom (SDOF) models was then conducted, according to which a displacement-based design method was established and recommended.

摘要

消能装置的安装方法是结构抗震设计的重点。本文提出了三种新型分层能量耗散（HED）系统，使用不同安装结构的微型杆式结构保险丝（MBSF），即使MBSF长度不同，安装Belleville弹簧，并使锚装置摩擦滑动。进行了验证测试和相应的模拟以检查这些结构的可行性。结果表明，BSC 和 FSC 系统按预期分层耗散能量。然后对单自由度 (SDOF) 模型进行时程动力学分析，据此建立并推荐基于位移的设计方法。