| 高架桥下通道内爆炸灾害荷载数值模拟分析 |
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| 引用本文： | 樊鑫,石磊,杜修力.高架桥下通道内爆炸灾害荷载数值模拟分析[J].兵工学报,2010(Z1). |
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| 作者姓名： | 樊鑫 石磊 杜修力 |
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| 作者单位： | 北京工业大学城市与工程安全减灾省部共建教育部重点实验室; |
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| 基金项目： | 国家“十一五”科技支撑项目(2006BAJ13B02); 北京市科技计划项目(Y060506000007022) |
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| 摘 要： | 为了掌握爆炸灾害中爆炸冲击波作用于建筑上的荷载特性,应用非线性显式有限元软件LS-DYNA建立了高架桥下通道内的爆炸数值模型;分析了网格划分方法对超压荷载计算结果的影响;得出了刚性地面上不同炸药当量、不同爆距下,通道外建筑迎爆面上荷载的变化规律,为建筑物的抗爆炸灾害预警、设计和加固等实际工程提供参考。
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| 关 键 词： | 爆炸灾害 爆炸冲击波 高架桥下通道 数值模拟 |
Numerical Simulation for Explosion Load in Underpass Structure |
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| FAN Xin,SHI Lei,DU Xiu-li.Numerical Simulation for Explosion Load in Underpass Structure[J].Acta Armamentarii,2010(Z1). |
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| Authors: | FAN Xin SHI Lei DU Xiu-li |
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| Affiliation: | FAN Xin,SHI Lei,DU Xiu-li(Key Laboratory of Urban Security and Disaster Engineering,Beijing University of Technology,Beijing 100124,China) |
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| Abstract: | In order to master the properties of blast shock wave on buildings in the explosion disaster,a numerical model for calculating the blast overpressure in the underpass was established by using explicit dynamic nonlinear finite element software LS-DYNA;the influence of the grid division on the calculation result of the blast overpressure loading was analyzed;the regularities of blast overpressure loading to the target building under different TNT equivalent and distance were obtained.Based on the numerical re... |
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| Keywords: | explosion disaster blast shock wave underpass numerical simulation |
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