Updating robust reliability fo bridges using measured vibrational data

机译：使用测得的振动数据更新桥梁的鲁棒可靠性

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The concept of robust reliability is defined to take into account uncertainties from structural modeling in addition to the uncertain excitation a structure will experience during its lifetime. A Bayesian probabilistic methodology for system identification is integrated with probabilistic structural analysis tools for the purpose of updating the assessment of the robust reliability based on dynamic test data. Methods for updating the structural reliability for both identifiable and unidentifiable models are presented. Application of the methodology to a simple beam model of a single-span bridge with soil-structure interaction at the abutments, shows that the robust eliabilities computed before and after updating with "measured" dynamic data can differe significantly.

机译：定义鲁棒可靠性的概念时，除了要考虑结构在其生命周期中会遇到的不确定激励之外，还要考虑到结构建模带来的不确定性。贝叶斯系统概率识别方法与概率结构分析工具集成在一起，目的是基于动态测试数据更新对鲁棒可靠性的评估。提出了更新可识别模型和不可识别模型的结构可靠性的方法。该方法在桥台上具有土-结构相互作用的单跨桥梁的简单梁模型中的应用表明，用“实测”动态数据更新之前和之后计算的鲁棒性可能存在显着差异。

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《International conference on applications of statistics and probability;ICASP8》|1999年|p.667-674|共8页
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J.L.Beck; C.Papdimitriou; L.S.Katafygiotis;
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中图分类一般工业技术;
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Updating robust reliability fo bridges using measured vibrational data

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