Numerical Simulation Research for CFST Columns under Blast Load

Cao Niu; Yong Gang Lu; Jun Lin Tao

doi:10.4028/www.scientific.net/AMR.838-841.644

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 838-841Numerical Simulation Research for CFST Columns...

Numerical Simulation Research for CFST Columns under Blast Load

Abstract:

The impact of blast load is always taken into consideration in significant pillar bearing component and protective construction. The LS-DYNA software was employed to simulate three typical concrete filled steel tubular (CFST) columns under blast load. The JHC model was used for concrete material and the MAT_PLASTIC_KINEMATIC model which accounted for the strain rate used for steel. Three section concrete-filled steel tube columns are analyzed in different proportion of distance and get the damage form of pillars and displacement of key points. The results show: In proportion to the same distance, the antiknock ability of circular cross section is better than the other two sections. Although in filled concrete damage is serious, but the steel tube columns improve the ductility of the columns. With the increase of proportion of distance, pillar deformation gradually decrease.

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Periodical:

Advanced Materials Research (Volumes 838-841)

Pages:

644-647

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.838-841.644

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Online since:

November 2013

Authors:

Cao Niu*, Yong Gang Lu, Jun Lin Tao

Keywords:

Blast Load, CFST, Fluid-Structure Coupling, Proportion of Distance

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* - Corresponding Author

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