Controls on Material and Mesh for Structural Nonlinear Time-History Analysis

Xiao Ming Chen; Jin Duan; Hu Qi; Yun Gui Li

doi:10.4028/www.scientific.net/AMM.580-583.1564

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 580-583Controls on Material and Mesh for Structural...

Controls on Material and Mesh for Structural Nonlinear Time-History Analysis

Abstract:

In order to improve the solution of nonlinear time-history analysis for high-rise buildings, the concrete constitutive relation of Chinese code has been modified by using Najar damage theory, and based on the limitation of stable time increment in explicit dynamic analysis, a simplified Rayleigh damping form with tiny stiffness proportional damping is proposed to decrease the damage induced by those high frequencies, at last, the influence of mesh size on stress and damage is also discussed. The numerical results show that these principles are workable for more accurate results.

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Periodical:

Applied Mechanics and Materials (Volumes 580-583)

Pages:

1564-1569

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.580-583.1564

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Online since:

July 2014

Authors:

Xiao Ming Chen*, Jin Duan, Hu Qi, Yun Gui Li

Keywords:

Concrete Constitutive Relation, Damping, Elastic-Plastic, Mesh, Time-History Analysis

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References

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