| 钢筋混凝土楼板在爆炸荷载作用下破坏模式和抗爆性能分析 |
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| 引用本文： | 汪维,张舵,卢芳云,林华令,江增荣.钢筋混凝土楼板在爆炸荷载作用下破坏模式和抗爆性能分析[J].兵工学报,2010(Z1). |
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| 作者姓名： | 汪维 张舵 卢芳云 林华令 江增荣 |
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| 作者单位： | 国防科学技术大学理学院; |
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| 摘 要： | 利用LS-DYNA软件对钢筋混凝土楼板在爆炸荷载作用下的毁伤破坏进行数值模拟研究,得到了钢筋混凝土楼板在不同当量的装药、爆距作用下发生不同的3种破坏模式。在此基础上分析不同钢筋混凝土抗压强度、比例距离及爆点相对于楼板的方位角、俯仰角与楼板毁伤破坏程度之间的关系。研究结果表明:当峰值压力较大,作用时间较短时楼板主要发生剪切崩塌破坏;而在峰值压力较小,作用时间较长时,钢筋混凝土板主要发生中部弯曲破坏;随着混凝土抗压强度和比例距离的增加,楼板的破坏程度逐渐减小;随着爆点俯仰角的增加,楼板的破坏程度逐渐增大,不同的爆炸方位角对钢筋混凝土楼板的毁伤破坏影响较小。研究结果可为工程应用及毁伤评估提供参考。
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| 关 键 词： | 爆炸荷载 钢筋混凝土板 数值模拟 破坏模式 |
Analysis for Blast Resistance and Damage Mode of Reinforced Concrete Slab Subjected to Explosive Load |
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| WANG Wei,ZHANG Duo,LU Fang-yun,LIN Hua-lin,JIANG Zeng-rong.Analysis for Blast Resistance and Damage Mode of Reinforced Concrete Slab Subjected to Explosive Load[J].Acta Armamentarii,2010(Z1). |
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| Authors: | WANG Wei ZHANG Duo LU Fang-yun LIN Hua-lin JIANG Zeng-rong |
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| Affiliation: | WANG Wei,ZHANG Duo,LU Fang-yun,LIN Hua-lin,JIANG Zeng-rong(School of Science,National University of Defense Technology,Changsha 410073,Hunan,China) |
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| Abstract: | The damage of RC slab subjected to blast load was simulated by using LD-DYNA software to obtain three damage modes under different explosive charge volumes and distances.The relationships of RC slab's damage degree with the initial strength,scaled distance,azimuth and pitch angles of the explosion point relative to the slab were analyzed numerically.The investigated results show that,when the peak overpressure is higher and the effect time is shorter,the damage mode of slab is shear and collapse failure;whe... |
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| Keywords: | explosive load reinforced concrete slab numerical simulation damage mode |
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