设防爆层钢箱梁缩尺结构抗近场爆炸作用试验研究

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摘要为研究设防爆层钢箱梁抗近场爆炸作用效果，本文以53g炸药当量、70mm爆距为典型爆炸条件，开展了混凝土-单层/双层钢丝网板、5层/10层凯夫拉板及其组合为防爆层的钢箱梁缩尺结构近场爆炸试验研究。以塑性变形能为抗爆效果考查指标，8种试验工况结果表明：近场爆炸作用下无防护钢箱梁顶板会发生沿U型加劲肋的撕裂破坏及球冠状凹坑，且横隔板间距250mm比间距150mm的钢箱梁顶板破坏严重，变形能约高出60%；混凝土-双层钢丝网板较单层钢丝网板能降低钢箱梁顶板的变形能约2.2%；混凝土-双层钢丝网板与5层凯夫拉组合作为防爆层，顶板塑性变形能降低至无防护结构钢箱梁顶板的34.5%，混凝土-双层钢丝网板与10层凯夫拉组合作为防爆层，该数值约为32.7%。

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	李文武1
	耿少波2
	贺耀北1
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关键词 ：钢箱梁, 近场爆炸, 防爆层, 凯夫拉

Abstract：In order to study the anti-blast effect of the steel box girder with blast-proof layer under near field blast, 53g explosive equivalent and 70mm blasting distance are used as explosion test parameters for the same scale model experiments. Concrete-single layer/double layers steel plate, 5 layers/10 layers Kevlar plate and their combination as blast-proof layer of scale steel box girder were tested in near field blast. Taking the plastic deformation energy of top plate as evaluation index, eight typical test results show that the top plate will undergo tearing damage along the U-stiffened plate for steel box girder without any protective blast-proof layer. The top plate of steel box girder with diaphragm spacing of 250mm is more severe than the diaphragm spacing of 150mm, and the deformation energy is about 60% higher. Double layer steel wire mesh concrete will reduce the deformation energy of top plate by 2.2% compared to single-layer steel wire mesh concrete. The combination of double layer steel wire mesh concrete and 5 layers of Kevlar as blast-proof layer, the plastic deformation energy of the top plate can be reduced to 34.5% of the value of the top plate without any protective layer. When the combination of double layer steel wire mesh concrete and 10 layers of Kevlar as blast-proof layer is used as blast-proof layer, the value is 32.7%.

Key words： steel box girder near field blast blast-proof layer Kelvar

收稿日期: 2020-07-15 出版日期: 2022-01-15

引用本文:

李文武1，耿少波2，贺耀北1,3. 设防爆层钢箱梁缩尺结构抗近场爆炸作用试验研究[J]. 振动与冲击, 2022, 41(1): 46-51.
LI Wenwu1, GENG Shaobo2, HE Yaobei1,3. Tests for near-field explosion resistance of steel box girder scale structure with anti-explosion layer. JOURNAL OF VIBRATION AND SHOCK, 2022, 41(1): 46-51.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2022/V41/I1/46

[1] 白志海,蒋志刚,严波,等.金属加筋板局部爆炸冲击荷载研究[J].振动与冲击,2011,30(12):93-97.
BAI Zhihai, JIANG Zhigang, YAN Bo, et al. Study on localized blast loading of stiffened metal plates[J]. Journal of Vibration and Shock, 2011, 30(12): 93-97.
[2] 蒋志刚,朱新明，严波，等. 钢箱梁爆炸冲击局部破坏的数值模拟[J].振动与冲击, 2013, 32(13): 159-164.
JIANG Zhigang, ZHU Xinming, YAN Bo, et al. Numerical simulation on the local failure of a steel box girder under blast loading[J]. Journal of Vibration and Shock, 2013, 32(13): 159-164.
[3] 蒋志刚,白志海,严波,等. 钢箱梁桥面板爆炸冲击响应数值模拟研究[J]. 振动与冲击, 2012(05):77-81.
JIANG Zhigang, BAI Zhihai, YAN Bo, et al. Numerical simulation study on response of a steel box girder deck to blast loading[J]. Journal of Vibration and Shock, 2012, 31(5): 77-81.
[4] 姚术健,蒋志刚,卢芳云,等.汽车炸弹钢箱梁内部爆炸局部破坏效应分析[J].振动与冲击,2015,34(07):222-227.
YAO Shujian，JIANG Zhigang，LU Fangyun，et al. Analysis on the local damage of a steel box girder under internal blast loading of vehicle bomb[J]. Journal of Vibration and Shock, 2015, 34(7): 222-227.
[5] NURICK G N, SHAVE G C. The deformation and tearing of thin square plates subjected to impulsive loads-an experimental study[J]. International Journal of Impact Engineering, 1996, 18(1): 99-116.
[6] NURICK G N, GELMAN M E, Marshall N S. Tearing of blast loaded plates with clamped boundary conditions[J]. International Journal of Impact Engineering, 1996, 18(7): 803-827.
[7] LANGDON G S, CHUNG K S, NURICK G N. Experimental and numerical studies on the response of quadrangular stiffened plates. Part II: localised blast loading[J]. International Journal of Impact Engineering, 2005, 31(1): 85-111.
[8] BONORCHIS D, NURICK G N. The effect of welded boundaries on the response of rectangular hot-rolled mild steel plates subjected to localized blast loading[J]. International Journal of Impact Engineering, 2007, 34(11): 1729-1738.
[9] 耿少波,刘亚玲,薛建英.钢箱梁缩尺模型爆炸冲击波作用下破坏实验研究[J].工程力学,2017,34(S1):84-88.
GENG Shaobo, LIU Yaling, XUE Jianying. Experimental studies on steel box girder scale model under the blast load [J].Engineering Mechaincs, 2017,34(S1):84-88.
[10] 刘亚玲,耿少波,刘玉存.铺装层对钢箱梁结构抗爆性能影响试验研究[J].科学技术与工程,2019, 19(15):88-93.
LIU Yaling，GENG Shaobo，LIU Yucun．Experimental study of anti-explosion performance improvement for concrete pavement layer on steel box girder deck[J]. Science Technology and Engineering, 2019, 19(15): 88-93.
[11] 侯海量，朱锡，梅志远。舱内爆炸载荷及舱室板架结构的失效模式分析[J]. 爆炸与冲击, 2007, 27(2): 151-158.
HOU Hailiang, ZHU Xi, MEI Zhiyuan.Study on the blast load and failure mode of ship structure subject to internal explosion [J]. Journal of PLA University of Science & Technology, 2002, 3(4):31-33.
[12] KURKI T. Contained Explosion inside a naval vessel evaluation of the structural response [D]. Espoo: Helsinki University of Technology, 2007.
[13] KONG X S, WU W G, LI J, et al. Experimental and numerical investigation on a multi-layer protective structure under the synergistic effect of blast and fragment loadings[J]. International Journal of Impact Engineering, 2014, 65: 146-162.
[14] 李帆.舰船舱室内爆炸破坏的数值模拟和实验研究[D]. 湖南长沙：国防科技大学，2012.
WU Jun, LIU Jingbo, DU Yixin. Elastic-plastic dynamic calculation and numerical analysis of assembling blast resistant wall under effect of vehicle bombs[J]. Journal of Disaster Prevention & Mitigation Engineering, 2007, 27(4):394-400.
[15] 牟金磊,朱锡, 张振华等.水下爆炸载荷作用下加筋板变形及开裂试验研究[J]. 振动与冲击, 2008, 27(1): 57-61.
MU Jinlei, ZHU Xi, ZHANG Zhenhua, et al. Experimental study on deformation and rupture of stiffened plates subjected to underwater shock[J]. Journal of Vibration and Shock, 2008, 27(1): 57-61.
[16] 郭志坤,宋峰良,刘峰等.扁平箱形密闭空间结构内爆炸的模型试验[J].解放军理工大学学报,2008,9(4):345-350.
GUO Zhikun, SONG Fengliang, LIU Feng, et al. Experiment of closed flat box structure subjected to internal detonation[J]. Journal of PLA University of Science and Technology, 2008, 9(4): 345-350.
[17] 袁天,孔祥韶,吴卫国.钢板/凯夫拉层合结构爆炸响应数值分析[J].中国舰船研究,2016,11(5):84-90.
YUAN Tian, KONG Xiangshao, WU Weiguo. Numerical simulation of steel/Kevlar laminated structures under explosive load[J]. Chinese Journal of Ship Research, 2016, 11(5):84-90.
[18] 林莉,支旭东,范锋,等.Q235B钢Johnson-Cook模型参数的确定[J].振动与冲击,2014,33(09):153-158.
LIN Li, ZHI Xudong, FAN Feng, et al. Determination of parameters of Johnson-Cook models of Q235B steel[J]. Journal of Vibration and Shock, 2014,33(09):153-158.