[1]杨亚东,李向东,王晓鸣,等.钢筋混凝土结构内爆炸相似模型试验研究[J].南京理工大学学报(自然科学版),2016,40(02):135.[doi:10.14177/j.cnki.32-1397n.2016.40.02.002]
 Yang Yadong,Li Xiangdong,Wang Xiaoming,et al.Experimental study on similarity model of reinforced concrete structure under internal explosion[J].Journal of Nanjing University of Science and Technology,2016,40(02):135.[doi:10.14177/j.cnki.32-1397n.2016.40.02.002]
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钢筋混凝土结构内爆炸相似模型试验研究
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
40卷
期数:
2016年02期
页码:
135
栏目:
出版日期:
2016-04-30

文章信息/Info

Title:
Experimental study on similarity model of reinforced concrete structure under internal explosion
文章编号:
1005-9830(2016)02-0135-07
作者:
杨亚东12李向东2王晓鸣2李战旗3傅武英3
1.重庆红宇精密工业有限责任公司,重庆 402760; 2南京理工大学 智能弹药技术国防 重点学科实验室,江苏 南京 2100942; 3.北方华安工业集团有限公司,黑龙江 齐齐哈尔 161046
Author(s):
Yang Yadong12Li Xiangdong2Wang Xiaoming2Li Zhanqi3Fu Wuying3
1.Chongqing Hongyu Precision Industrial CO Ltd,Chongqing 402760; 2.ZNDY Ministerial Key Laboratory,Nanjing University of Science and Technology,Nanjing 210094,China; 3.Huaan Industry Group Co Ltd,Qiqihar 161046,China
关键词:
爆炸力学 钢筋混凝土结构 内爆炸 相似规律 试验
Keywords:
explosion mechanics reinforced concrete structures internal explosion similarity laws experiment
分类号:
O383.3
DOI:
10.14177/j.cnki.32-1397n.2016.40.02.002
摘要:
为了研究钢筋混凝土结构在内爆炸作用下的冲击波特征参量和结构毁伤的相似规律,建立了钢筋混凝土结构内爆炸相似理论模型,进行了结构原型和缩比系数分别为0.75和0.5的内爆炸相似性试验,对内爆炸冲击波特征参量和结构毁伤相似性进行了分析。结果表明,不同药量作用下各相似模型在典型位置处的内爆炸超压峰值具有相似的分布规律; 药量服从相似准则时,0.75和0.5缩比方案的第一峰超压与原型的最大相对误差分别为10.33%和14.36%,前三波比例脉冲宽度与原型的最大相对误差分别为4.02%和5.25%; 各缩比模型的压力时程曲线波形符合良好,证明各缩比模型之间的内爆炸特征参量存在相似规律; 相似缩比模型在相同毁伤等级的药量作用下,可以从试验中得到相同的破坏程度和相似的破坏形态。
Abstract:
To research the similarity law of shockwave characteristic parameters and the structural damage of the reinforced concrete(RC)structures under the internal explosion,the similarity theory model of the RC structure under the internal explosion is established,the similarity tests of the original model and the scale model with scale coefficient values of 0.75 and 0.5 are conducted,and the similarity law of the shockwave characteristics parameter and the structural damage of RC structures is analysed.The results show that the peak overpressure of similarity models in the typical locations under different charge weights has similar distribution characteristics.When the charge weights follow the similarity criteria,the maximum relative errors of the first peak overpressure and the scale pulse width of the first three peaks between the 0.75 scale model and the original model are less than 10.33% and 4.02% respectively.As the scale coefficient is 0.5,the values are 5.25% and 14.36% respectively.Pressure-time history curves of the scale model are consistent with the original model,proving that the shockwave characteristic parameter of the scale models under the internal explosion obeys similar laws.The similarity scale models under the charge producing the same damage level can get the similar damage degree and failure modes.

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备注/Memo

备注/Memo:
收稿日期:2014-07-07 修回日期:2015-08-19
作者简介:杨亚东(1979-),男,博士,主要研究方向:弹药终点效应及目标毁伤技术,E-mail:luxiya_2000_2000@tom.com; 通讯作者:李向东(1969-),男,博士,教授,主要研究方向:弹药终点效应及目标易损性,E-mail:lixiangd@njust.edu.cn。
引文格式:杨亚东,李向东,王晓鸣,等.钢筋混凝土结构内爆炸相似模型试验研究[J].南京理工大学学报,2016,40(2):135-141.
投稿网址:http://zrxuebao.njust.edu.cn
更新日期/Last Update: 2016-04-30