| 爆炸荷载作用下钢柱的动力反应分析 |
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| 引用本文： | 刘志侠,杨越. 爆炸荷载作用下钢柱的动力反应分析[J]. 工业建筑, 2014, 0(Z1): 572-574 |
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| 作者姓名： | 刘志侠 杨越 |
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| 作者单位： | 中冶京诚工程技术有限公司 |
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| 摘 要： | 建筑室内爆炸超压载荷,考虑钢材在高应变速率下的材料力学性能的变化,对结构竖向构件钢柱在爆炸超压载荷作用下的动力反应进行数值分析。结果表明:采用Johnson-Cook本构模型,可以有效地模拟钢柱在爆炸荷载作用下的动力行为;对于给定截面型式的钢柱,钢柱长度及柱顶荷载的大小对钢柱在爆炸荷载作用下的承载能力有很大的影响。
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| 关 键 词： | 钢柱 爆炸波 本构模型 有限元分析 动力响应 |
DYNAMIC RESPONSES OF STEEL COLUMN SUBJECTED TO BLAST LOADING |
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| Liu Zhixia;Yang Yue. DYNAMIC RESPONSES OF STEEL COLUMN SUBJECTED TO BLAST LOADING[J]. Industrial Construction, 2014, 0(Z1): 572-574 |
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| Authors: | Liu Zhixia Yang Yue |
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| Affiliation: | Liu Zhixia;Yang Yue;MCC Capital Engineering & Research Incorporation Limited; |
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| Abstract: | Based on a blast overpressure model within buildings and considering the effects of strain rate on steel material,the numerical simulation and analysis of dynamic responses of steel column under blast loading are performed. The results show that the dynamic behavior of the steel column subjected to the blast loading may be effectively simulated by the Johnson-Cook constitutive model. The bearing capacity of the steel column subjected to the blast loading may be effectively variety through changing the concentrated load at top of the column and the length of the column. |
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| Keywords: | steel column blast wave constitutive model FEA dynamic response |
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