Damage evaluation for a column of a typical subway station subjectedto internal blast loading

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Journal of Vibration and Shock ›› 2017, Vol. 36 ›› Issue (1) : 1-7.

YAN Qiushi, DU Xiuli

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Abstract

With increase in terrorists blast threats, the occuring probability of explosion in a subway rises. As the main forcebearing member of a subway station, it is necessary to evaluate the damage of its column under a blast loading within a closer distance. Here, using the finite element analysis method, a coupled analysis model for explosiveairconcrete column was established. The applicability of the model was verified with existing tests. A damage evaluation method based on the loadbearing capacity of a subway station's column was proposed. The damage of the subway station column was divided into different damage levels. The damage of the column of a typical subway station under the actions of different explosives was evaluated. Using the proposed coupled calculation model and the evaluation method, the damage of a reinforced concrete column subjected to blast loading within a closer distance was evaluated and it was designed to meet the requirements of anti-blast.

Key words

internal explosion

/ blast wave / subway station / reinforced concrete column / damage evaluation

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YAN Qiushi, DU Xiuli. Damage evaluation for a column of a typical subway station subjectedto internal blast loading[J]. Journal of Vibration and Shock, 2017, 36(1): 1-7

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