Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/27388
Title: Integrated system identification and reliability evaluation of stochastic building structures
Authors: Zhang, J
Xu, YL 
Li, J
Issue Date: 2011
Source: Probabilistic engineering mechanics, 2011, v. 26, no. 4, p. 528-538
Abstract: System identification and reliability evaluation play a significant role in structural health monitoring to ensure the serviceability and safety of existing structures. Although the development of system identification methods has attained much attention and some degree of maturity, reliability evaluation of existing structures still remains a challenging problem especially when uncertainties in measurement data and inherent randomness, which are inevitably involved in civil structures, are considered. In this regard, this paper presents a framework for integrated system identification and reliability evaluation of stochastic building structures. Two algorithms are proposed to respectively evaluate component reliability and system reliability of stochastic building structures by combining a statistical moment-based system identification method and a probability density evolution equation-based reliability evaluation method. System identification is embedded in the procedure of reliability evaluation of a stochastic building structure. The uncertainties in both the structure and the external excitation are considered. Numerical examples show that the structural component and system reliabilities of a three-story shear building structure with three damage scenarios can be effectively evaluated by the proposed methods.
Keywords: Component reliability
Reliability evaluation
Stochastic structures
System identification
System reliability
Journal: Probabilistic Engineering Mechanics 
ISSN: 0266-8920
DOI: 10.1016/j.probengmech.2011.04.002
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