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Creep of the Plane Steel Frame at Elevated Temperature

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Abstract:

In this paper, co-rotational total Lagrangian finite element formulation is derived, and the corresponding numerical model is developed to study creeping behavior of plane steel frames in fire. Geometrical nonlinearity, material nonlinearity, high temperature creeping, and temperature rising rate are taken into account. To verify accuracy and efficiency of the numerical model, four prototypical numerical examples are analyzed using this model. Results are in a great agreement with solutions in literatures. Then the numerical model is used to analyze creeping behavior of the plane steel frames when temperature is lowering. The numerical results have significant contribution to resistance and protection for steel structures against disastrous fires.

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Periodical:

Advanced Materials Research (Volumes 446-449)

Pages:

793-796

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.446-449.793

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Cite this paper

Online since:

January 2012

Authors:

Hui Zhu, Yu Ching Wu

Keywords:

Co-Rotational, Creep, Elevated Temperature, Plane Steel Frame, Total Lagrangian Formulation

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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