Combined damage mechanism of air shock wave and ground vibration wave in reinforced concrete column under ground explosion
The blast-resistance safety of buildings under the combined action of air shock waves and ground vibration wave is an important research topic in the field of engineering blasting and protection engineering.Theoretical analysis and numerical simulation methods are used to explore a single concrete frame structure column in order to study the combined damage effect of air shock wave and ground vibration wave,and the damage and load of the column after ground explosion are discussed.Besides,the effect of ground vibration wave and the factors affecting the damage of the column are studied.The results show that the damage forms of the column are mainly bending,tensile and shear failure.The damage of the column is dominated by air shock waves and affected by ground vibration wave.The effect of ground vibration wave on the column is mainly affected by the type of overlying soil layer and the degree of water saturation.
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