ABSTRACT

A methodology based on probabilistic seismic risk analysis to estimate damping factors (F_md) which modify the spectrum of elastic displacement with uniform annual exceedance rates (UAER), is proposed. Such factors take into account both a) energy dissipation of the hysteretic dissipaters and b) seismic hazard of the site. It is shown the importance of taking into account the type of soil for a proper selection of the dissipater characteristics. Mathematical expressions for F_md factors are proposed. An example in which F_md factors are applied using a displacement-based design approach is presented. The results are verified with time-history analyses.

摘要

提出了一种基于概率地震风险分析来估计阻尼因子 (F _md ) 的方法，该方法修改了具有均匀年超越率 (UAER) 的弹性位移谱。这些因素考虑了 a) 滞后消散器的能量耗散和 b) 场地的地震危险。它显示了考虑土壤类型以正确选择消散器特性的重要性。_{提出了 F md}因子的数学表达式。给出了一个使用基于位移的设计方法应用F _{md因子的示例。}结果通过时间历史分析得到验证。