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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 226-228Analysis of Influence of Material Damping on the...

Analysis of Influence of Material Damping on the Dynamic Response of Concrete-Filled Square Steel Tubular Columns

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Abstract:

The damping characteristic and dynamic responses of the concrete-filled square steel tubular (CFST) columns were numerically investigated in this paper. Finite element iteration method in the hysteretic damping system for CFST materials was presented, and an improved method considering viscous damping dynamic equilibrium equation with hysteretic damping model was also proposed. Based on the proposed methods, the loss factor and dynamic response of CFST columns subjected to the earthquake and harmonic loadings were effectively calculated. The results indicate that the stress-dependent damping method induces a larger dynamic response, and the loss factor of the CFST columns increases with the increase of the stress amplitude and lower steel ratio.

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Periodical:

Applied Mechanics and Materials (Volumes 226-228)

Pages:

905-909

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.226-228.905

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Cite this paper

Online since:

November 2012

Authors:

Yuan Feng Wang, Xiao Ran Li

Keywords:

Concrete-Filled Square Steel Tubular Column, Dynamic Response, Finite Element Analysis (FEA), Stress-Dependent Damping

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