Evidence Theory for Uncertainty Quantification of Portal Frames with Semi-Rigid Connections

He Sheng Tang; Jiao Wang; Yu Su; Song Tao Xue

doi:10.4028/www.scientific.net/AMR.663.130

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 663Evidence Theory for Uncertainty Quantification of...

Evidence Theory for Uncertainty Quantification of Portal Frames with Semi-Rigid Connections

Abstract:

The buckling load or the equivalent buckling length factor of the portal frame structures is greatly influenced by stiffness of bracing elements and semi-rigid connections. In engineering the problem parameters (geometrical, material, strength, and manufacturing) are given or considered with uncertainties. The initial rotation stiffness uncertainties are taken into consideration. A differential evolution-based computational strategy for the representation of epistemic uncertainty in a system with evidence theory is developed. An uncertainty quantification analysis for the buckling load of portal frames with semi-rigid connections is presented herein to demonstrate accuracy and efficiency of the proposed method.

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Periodical:

Advanced Materials Research (Volume 663)

Pages:

130-136

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.663.130

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Online since:

February 2013

Authors:

He Sheng Tang, Jiao Wang, Yu Su, Song Tao Xue

Keywords:

Differential Evolution, Evidence Theory, Portal Frame, Semi-Rigid Connection, Uncertainty

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