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Erschienen in:
2009 | OriginalPaper | Buchkapitel
Numerical Simulation of Internal Blast Effects on a Subway Station
verfasst von : Qiuyun Hu, Yong Yuan
Erschienen in: Computational Structural Engineering
Verlag: Springer Netherlands
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Due to the confined space in a station, the internal blast effects are obviously different from the air blast. In order to design and retrofit a subway station to resist an internal blast, the distribution of blast loading and its effects on structures should be acquired firstly. The explicit dynamic nonlinear finite element software —ANSYS/LS-DYNA was used in this study. It briefly introduced the material constitutive models and boundary conditions used in the simulation. The numerical model of a typical two-layer and three-span frame subway station is established. Then two cases of different location of explosives were considered to analyze the dynamic responses of the structure. The effective plastic strain, displacement and total energy of the structure in the two cases were presented and discussed.