Improved response surface method for anti-slide reliability analysis of gravity dam based on weighted regression

The aim of this study was to design and construct an improved response surface method （RSM） based on weighted regression for the anti-slide reliability analysis of concrete gravity dam. The limitation and lacuna of the traditional RSM were briefly analyzed. Firstly, based on small experimental point...

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Bibliographic Details
Published in:Journal of Zhejiang University. A. Science 2010-06, Vol.11 (6), p.432-439
Main Authors: Chen, Jian-yun, Xu, Qiang, Li, Jing, Fan, Shu-li
Format: Article
Language:English
Subjects:
Algorithms
Arithmetic
Civil Engineering
Classical and Continuum Physics
Coefficients
Computational efficiency
Computing time
Concrete construction
Construction
Decomposition
Design engineering
Deviation
Engineering
Gravitation
Industrial Chemistry/Chemical Engineering
Lacunas
Mathematical analysis
Mechanical Engineering
Regression
Reliability analysis
Response surfaces
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Summary:The aim of this study was to design and construct an improved response surface method （RSM） based on weighted regression for the anti-slide reliability analysis of concrete gravity dam. The limitation and lacuna of the traditional RSM were briefly analyzed. Firstly, based on small experimental points, research was devoted to an improved RSM with singular value decomposition techniques. Then, the method was used on the basis of weighted regression and deviation coefficient correction to reduce iteration times and experimental points and improve the calculation method of checking point. Finally, a test example was given to verify this method. Compared with other conventional algorithms, this method has some strong advantages： this algorithm not only saves the arithmetic operations but also greatly enhances the calculation efficiency and the storage efficiency.
ISSN:1673-565X
1862-1775
DOI:10.1631/jzus.A0900709