Improved Nonprobabilistic Global Optimal Solution Method and Its Application in Bridge Reliability Assessment
Joint Authors
Bian, Xiaoya
Chen, Xuyong
Yang, Hongyin
You, Chen
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-02-03
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Utilizing the improved one-dimensional optimization algorithm conveniently solved the nonprobabilistic reliability index, however, only searching the part of probable failure points.
Utilizing the global optimal solution method produced heavy computation, although it was capable of searching all probable failure points.
This paper, based on these two methods, proposed an improved nonprobabilistic global optimal solution method.
The presented method possessed the advantages of searching all probable failure points and generating less computation, by means of which the values of interval variables were determined based on the monotonicity of performance function to the corresponding variables.
Without losing any probable failure points, this method was contributive to reducing root value point equations, lowering the computational complexity, and improving the computational efficiency.
The effectiveness and feasibility of the presented method were verified by two examples.
The proposed method was also introduced to build the nonprobabilistic reliability evaluation process of existing bridges.
Taking the Longganhu bridge for example, the nonprobabilistic reliability index of it was calculated using the presented nonprobabilistic reliability evaluation process.
The computed nonprobabilistic reliability index η = 0.737 < 1 indicated that the Longganhu bridge was unreliable and needed to be reinforced.
Reinforcement measures were carried out for a hollow slab and bridge deck of the Longganhu bridge, respectively.
The reinforced bridge was reevaluated as η = 2.159 > 1.
The results showed that the bridge was reliable after reinforcement.
The study illustrated the application and feasibility of the improved nonprobabilistic global optimal solution method and nonprobabilistic reliability evaluation process in reliability assessment and reinforcement of existing bridges.
American Psychological Association (APA)
Bian, Xiaoya& Chen, Xuyong& Yang, Hongyin& You, Chen. 2019. Improved Nonprobabilistic Global Optimal Solution Method and Its Application in Bridge Reliability Assessment. Advances in Civil Engineering،Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1117306
Modern Language Association (MLA)
Bian, Xiaoya…[et al.]. Improved Nonprobabilistic Global Optimal Solution Method and Its Application in Bridge Reliability Assessment. Advances in Civil Engineering No. 2019 (2019), pp.1-8.
https://search.emarefa.net/detail/BIM-1117306
American Medical Association (AMA)
Bian, Xiaoya& Chen, Xuyong& Yang, Hongyin& You, Chen. Improved Nonprobabilistic Global Optimal Solution Method and Its Application in Bridge Reliability Assessment. Advances in Civil Engineering. 2019. Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1117306
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1117306