Prediction of spatially distributed seismic demands in specific structures: Structural response to loss estimation
Prediction of spatially distributed seismic demands in specific structures: Structural response to loss estimation
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特定结构中空间分布地震需求的预测：损失估计的结构响应
DOI：
10.1002/eqe.955
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发表时间：
2009
影响因子：
4.5
通讯作者：
M. Cubrinovski
中科院分区：
文献类型：
--
作者：
B. Bradley;R. Dhakal;G. MacRae;M. Cubrinovski
一篇配套论文研究了强度测度（IM）选择在多自由度结构空间分布响应预测中的影响。本文从结构响应预测扩展到性能评估指标，如结构倒塌的概率;超过指定水平的需求或直接维修成本的概率;以及给定水平的地面运动的直接维修损失的分布。此外，提出了一种方法来考虑地震需求，不需要不同的地面运动记录，以用于每个强度水平的地面运动的不同的地震学特性的影响。结果表明，传统的IM，频谱位移在第一模式，Sde（T1），产生更高的风险估计比替代的基于速度的IM的，即频谱强度，SI和峰值地面速度，PGV，因为它的高不确定性在地面运动预测和预测峰值加速度需求的效率差。版权所有© 2009约翰威利父子有限公司。
A companion paper has investigated the effects of intensity measure (IM) selection in the prediction of spatially distributed response in a multi‐degree‐of‐freedom structure. This paper extends from structural response prediction to performance assessment metrics such as probability of structural collapse; probability of exceeding a specified level of demand or direct repair cost; and the distribution of direct repair loss for a given level of ground motion. In addition, a method is proposed to account for the effect of varying seismological properties of ground motions on seismic demand that does not require different ground motion records to be used for each intensity level. Results illustrate that the conventional IM, spectral displacement at the first mode, Sde(T1), produces higher risk estimates than alternative velocity‐based IM's, namely spectrum intensity, SI, and peak ground velocity, PGV, because of its high uncertainty in ground motion prediction and poor efficiency in predicting peak acceleration demands. Copyright © 2009 John Wiley & Sons, Ltd.
影响因子：
4.5
作者：
Baker, Jack W.;Cornell, C. Allin
通讯作者：
Cornell, C. Allin