| 爆炸作用下钢筋混凝土框架柱的动力及损伤分析 |
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| 引用本文： | 彭利英.爆炸作用下钢筋混凝土框架柱的动力及损伤分析[J].地震工程与工程振动,2012,32(4):71-78. |
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| 作者姓名： | 彭利英 |
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| 作者单位： | 湖南工程学院建筑工程学院,湖南湘潭,411104 |
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| 摘 要： | 为了研究钢筋混凝土框架柱在爆炸冲击波作用下的反应,本文使用有限元分析软件AUTO-DYN对一个典型的钢筋混凝土底层框架柱进行了爆炸分析.设定了1m、3m、5m三种比例距离,各比例距离分别设置10 kg、50 kg、100 kg三种量级的TNT炸药.分析得到了各爆炸工况下柱子的动力响应及损伤形态.研究表明:柱子在爆炸冲击波作用下的动力响应对于比例距离的改变十分敏感；当炸弹在地面爆炸时,柱子最终破坏的区域总是在柱底到柱高的三分之一处；随着比例距离的增大,柱子最终的破坏形态由剪切型转变为弯曲型.
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| 关 键 词： | AUTODYN 框架柱 爆炸 动力响应 损伤 |
Dynamic and damage analysis of reinforced concrete frame column under explosion |
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| PENG Liying.Dynamic and damage analysis of reinforced concrete frame column under explosion[J].Earthquake Engineering and Engineering Vibration,2012,32(4):71-78. |
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| Authors: | PENG Liying |
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| Institution: | PENG Liying(Department of Building Engineering,Hunan Institute of Engineering,Xiangtan 411104,China) |
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| Abstract: | In order to analyze the responses of reinforced concrete frame column to the explosion,the article uses a finite element analysis software AUTODYN to do it.Three kinds of explosion distance: 1m,3m and 5m and three scales of explosives: 10 kg,50 kg and 100 kg for each distance are set.The analysis gets the dynamic responses and damage forms of the column under different explosion conditions.Studies show that dynamic responses of column are sensitive to the scaled distance.When the bomb blasts on the ground,the damage area of column is from bottom to one third of the height.With the increase of the scaled distance,the columns are finally damaged from the failure pattern of shear to the failure pattern of bending. |
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| Keywords: | AUTODYN frame column explosion dynamic response damage |
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