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Research on Impact Response and Failure Modes of H Section Steel Frame Columns Subject to Blast Loads

Liu, Yun-Fei / Lei, Hong-Gang

Using finite software ANSYS LS/DYNA for simulating the impact response and failure modes of H section steel frame columns subject to blast loads, and loading different load conditions, changing column boundary conditions and web plate thickness. Conclusion: the failure model of steel columns changes with the change of load form, steel columns will be easy to occur shear failure in the end by the dynamic load, and the flange will be easy to occur bucking failure in local by impulse load; In the case of same size and web thickness, increase the web thickness can reduce the deformation of column effectively, improve the capability of H section steel column resist the blast load.

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Research on Impact Response and Failure Modes of H Section Steel Frame Columns Subject to Blast Loads

Liu, Yun-Fei / Lei, Hong-Gang

Using finite software ANSYS LS/DYNA for simulating the impact response and failure modes of H section steel frame columns subject to blast loads, and loading different load conditions, changing column boundary conditions and web plate thickness. Conclusion: the failure model of steel columns changes with the change of load form, steel columns will be easy to occur shear failure in the end by the dynamic load, and the flange will be easy to occur bucking failure in local by impulse load; In the case of same size and web thickness, increase the web thickness can reduce the deformation of column effectively, improve the capability of H section steel column resist the blast load.

Research on Impact Response and Failure Modes of H Section Steel Frame Columns Subject to Blast Loads

Liu, Yun-Fei / Lei, Hong-Gang

Using finite software ANSYS LS/DYNA for simulating the impact response and failure modes of H section steel frame columns subject to blast loads, and loading different load conditions, changing column boundary conditions and web plate thickness. Conclusion: the failure model of steel columns changes with the change of load form, steel columns will be easy to occur shear failure in the end by the dynamic load, and the flange will be easy to occur bucking failure in local by impulse load; In the case of same size and web thickness, increase the web thickness can reduce the deformation of column effectively, improve the capability of H section steel column resist the blast load.

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Title:

Research on Impact Response and Failure Modes of H Section Steel Frame Columns Subject to Blast Loads

Contributors:

Liu, Yun-Fei (author) / Lei, Hong-Gang (author)

Published in:

ICCAHE, International Conference on Civil, Architectural and Hydraulic Engineering, 2012 ; 3094-3098

Applied Mechanics and Materials ; 204-208

Publication date:

2012

Size:

5 Seiten

ISSN:

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.204-208.3094

Type of media:

Conference paper

Type of material:

Print

Language:

English

Keywords:

Versagensart , Lenkradschaltung , Beladungszustand , Randbedingung , dynamische Last

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