Reliability-based design of tuned mass-damper-inerter (TMDI) equipped multi-storey frame buildings under seismic excitation

Reliability-based design of tuned mass-damper-inerter (TMDI) equipped multi-storey frame buildings under seismic excitation
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DOI:
10.14288/1.0076257
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发表时间:
2015-05
期刊:
--
影响因子:
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通讯作者:
A. Giaralis;A. Taflanidis
A. Giaralis;A. Taflanidis
中科院分区:
其他
文献类型:
--
作者:
A. Giaralis;A. Taflanidis

文献摘要

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研究了固定色随机过程地震作用下线性建筑框架的调谐质量阻尼器的可靠性优化设计问题。TMDI是经典线性调谐质量阻尼器(TMD)的最新推广,利用了调谐器的质量放大特性,即所谓的惯性,增强了TMD的抑振能力。频率、阻尼比和惯性TMDI属性被视为设计变量,以最小化建筑物楼层加速度、层间漂移和TMDI质量位移的预先指定阈值的跨出率。本文提供了一个配有12种不同拓扑结构的TMDI的10层框架结构的数值数据,表明TMDI比传统的TMD性能增强,特别是对于相对较小的附加质量。
The reliability based optimal design is considered of tuned mass-damper-inerter (TMDI) equipped linear building frames subject to seismic excitations modeled as stationary colored random processes. The TMDI is a recently introduced generalization of the classical linear tuned mass-damper (TMD) benefitting from the mass amplification property, the so-called inertance, of the inerter device to enhance the vibration suppression capabilities of the TMD. The frequency, damping ratio, and inertance TMDI properties are treated as design variables to minimize out-crossing rates of prespecified thresholds for building floor accelerations, inter-storey drifts, and TMDI mass displacement. Numerical data pertaining to a 10-storey frame structure equipped with a TMDI arranged in 12 different topologies are furnished indicating the enhanced performance of the TMDI over the classical TMD especially for relatively small additional attached mass.