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以方钢管SFRC柱为研究对象,运用显示动力学有限元软件建立三种工况下的模型,通过对比三者间位移、速度、等效应力等动力响应参数间的差异,分析近距离爆炸荷载下钢纤维含量对柱体动力响应的影响.结果表明:当方钢管SFRC柱中钢纤维含量为3%时,对于提高柱体在近距离爆炸荷载作用下的抗爆性能效果最佳.
Taking the square steel tube SFRC as the research object, the dynamic finite element software was used to establish the model under three different operating conditions. By comparing the differences among the dynamic response parameters such as displacement, velocity and equivalent stress, The effect of steel fiber content on the dynamic response of the column was studied.The results show that when the content of steel fiber in the SFRC steel tube is 3%, the antiknock performance of the column under the short-range explosion load is the best.