| 爆炸荷载下钢筋混凝土梁的变形和破坏 |
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| 引用本文： | 李猛深,李杰,李宏,施存程,张宁.爆炸荷载下钢筋混凝土梁的变形和破坏[J].爆炸与冲击,2015,35(2):177-183. |
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| 作者姓名： | 李猛深 李杰 李宏 施存程 张宁 |
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| 作者单位： | 1.沈阳军区司令部工程科研设计所，辽宁 沈阳 110162 |
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| 基金项目： | 国家自然科学基金青年科学基金项目，中国博士后科学基金项目 |
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| 摘 要： | 利用爆炸压力模拟器进行钢筋混凝土简支梁爆炸冲击实验，详细介绍了实验设计，通过实验系统分析了钢筋混凝土(RC)梁变形破坏特征以及钢筋作用机理和对变形破坏的影响，并建立了RC梁的分离式有限元模型，利用LS-DYNA分析了实验过程，对计算结果与实验结果进行了比较，分析了误差产生的原因，得到了爆炸冲击荷载作用下RC梁的损伤破坏特征和机理，可为毁伤评估和结构抗爆设计提供参考。
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| 关 键 词： | 爆炸力学 破坏特征 有限元 钢筋混凝土梁 爆炸荷载 |
| 收稿时间： | 2013-07-10 |
Deformation and failure of reinforced concrete beams under blast loading |
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| Li Meng-shen,Li Jie,Li Hong,Shi Cun-cheng,Zhang Ning.Deformation and failure of reinforced concrete beams under blast loading[J].Explosion and Shock Waves,2015,35(2):177-183. |
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| Authors: | Li Meng-shen Li Jie Li Hong Shi Cun-cheng Zhang Ning |
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| Institution: | 1.Engineering Research and Designing Institute, Shenyang Military Area Command, Shenyang 110162, Liaoning, China2.State Key Laboratory of Disaster Prevention & Mitigation of Explosion & Impact, PLA University of Science and Technology, Nanjing 210007, Jiangsu, China3.School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China4.The Second Artillery Command College, Wuhan 430012, Hubei, China |
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| Abstract: | With explosion pressure simulator, blast experiments were carried out to investigate the deformation and damage of concrete (RC) beams. The experimental design and parameters are described in detail. The experimental result shows the failure characteristics of RC beams and the role that rebars act. With LS-DYNA, three-dimensional separated finite element models of RC beams were established to simulate the experiment. The simulation and experimental results are contrasted to investigate the damage mechanism and failure characteristics. The article also figures out the reason of simulation errors. The research provides reference for damage assessment and anti-blast design. |
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| Keywords: | mechanics of explosion failure characteristics finite element reinforced concrete beam blast loading |
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