Local damage effects of reinforced concrete beams under contact explosions

WANG Huiming; LIU Fei; YAN Luhui; WANG Jianhui; SHANG Wei; LYU Linmei

doi:10.11883/bzycj-2020-0171

Volume 40 Issue 12

Dec. 2020

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WANG Huiming, LIU Fei, YAN Luhui, WANG Jianhui, SHANG Wei, LYU Linmei. Local damage effects of reinforced concrete beams under contact explosions[J]. Explosion And Shock Waves, 2020, 40(12): 121404. doi: 10.11883/bzycj-2020-0171

Citation:

WANG Huiming, LIU Fei, YAN Luhui, WANG Jianhui, SHANG Wei, LYU Linmei. Local damage effects of reinforced concrete beams under contact explosions[J]. Explosion And Shock Waves, 2020, 40(12): 121404. doi: 10.11883/bzycj-2020-0171

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Local damage effects of reinforced concrete beams under contact explosions

doi: 10.11883/bzycj-2020-0171

WANG Huiming^{1, 2
,},
LIU Fei^{2
,
,},
YAN Luhui³,
WANG Jianhui²,
SHANG Wei^{2, 4},
LYU Linmei²

1.
College of Aerospace Science, Nation University of Defense Technology, Changsha 410072, Hunan, China
2.
Research Institute of Defense Engineering, Academy of Military Science, Luoyang 471023, Henan, China
3.
College of Military Basic Education, Nation University of Defense Technology, Changsha 410073, Hunan, China
4.
Institute of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China

Received Date: 2020-05-28
Rev Recd Date: 2020-09-01
Publish Date: 2020-12-05

Abstract

Abstract

In order to investigate the local failure modes and damage effects of reinforced concrete (RC) beams under contact explosion, the experimental studies of RC beams with the same size under different TNT charge masses were conducted. In the tests, the typical engineering scale RC prototype beams designed for frame structures were used as research objects. Through four independent explosion tests, the failure modes and damage characteristics of the RC beams were observed at different TNT charge masses, and the influence of different TNT charge masses on the local damage was analyzed. The results show that RC beams undergo four types of local failure modes such as front crater, side breakdown, back collapse and section punching under contact detonations. The depth of crater, thickness of the spallation, surface damaged area, and the deformation of the steel bars exhibited a linear increase with the cubic root of TNT charge masses. Based on the experimental data, the local damage degree could be divided into four grades: slight, moderate, serious and severe, that could be evaluated by the proportional charge criterion. The research results can provide a theoretical basis for designing the anti-blast structures and assessing the damage of components subjected to explosive loading.
- contact explosion,
- reinforced concrete beam,
- local damage,
- failure mode

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References(24)

References

[1]	SHI Y F, STEWART M G. Damage and risk assessment for reinforced concrete wall panels subjected to explosive blast loading [J]. International Journal of Impact Engineering, 2015, 85(11): 5–19. DOI: 10.1016/j.ijimpeng.2015.06.003.
[2]	SHI Y C, XIONG W, LI Z X, et al. Experimental studies on the local damage and fragments of unreinforced masonry walls under close-in explosions [J]. International Journal of Impact Engineering, 2016, 90(4): 122–131. DOI: 10.1016/j.ijimpeng.2015.12.002.
[3]	ALOK D, ABASS B, MANISH K. Experimental and numerical investigation of rectangular reinforced concrete columns under contact explosion effects [J]. Engineering Structures, 2020, 205(15): 109891. DOI: 10.1016/j.engstruct.2019.109891.
[4]	ZHANG D, YAO S J, LU F Y, et al. Experimental study on scaling of RC beams under close-in blast loading [J]. Engineering Failure analysis, 2013, 33(10): 497–504. DOI: 10.1016/j.engfailanal.2013.06.020.
[5]	汪维, 刘瑞朝, 吴飚, 等. 爆炸荷载作用下钢筋混凝土梁毁伤判据研究 [J]. 兵工学报, 2016, 37(8): 1421–1429. DOI: 10.3969/j.issn.1000-1093.2016.08.012. WANG W, LIU R C, WU B, et al. Damage criteria of reinforced concrete beams under blast loading [J]. Acta Armamentarii , 2016, 37(8): 1421–1429. DOI: 10.3969/j.issn.1000-1093.2016.08.012.
[6]	YAO S J, ZHANG D, LU F Y, et al. Damage features and dynamic response of RC beams under blast [J]. Engineering Failure Analysis, 2016, 62(4): 103–111. DOI: 10.1016/j.engfailanal.2015.12.001.
[7]	RAO B, CHEN L, FANG Q, HONG J, et al. Dynamic responses of reinforced concrete beams under double-endinitiated close-in explosion [J]. Defence Technology, 2018, 14(5): 527–539. DOI: 10.1016/j.dt.2018.07.024.
[8]	李忠献, 师燕超, 史祥生. 爆炸荷载作用下钢筋混凝土板破坏评定方法 [J]. 建筑结构学报, 2009, 30(6): 60–66. DOI: 10.14006/j.jzjgxb.2009.06.008. LI Z X, SHI Y C, SHI X S. Damage analysis and assessment of RC slabs under blast load [J]. Journal of Building Structures, 2009, 30(6): 60–66. DOI: 10.14006/j.jzjgxb.2009.06.008.
[9]	ZHAO C F, CHEN J Y. Damage mechanism and mode of square reinforced concrete slab subjected to blast loading [J]. Theoretical and Applied Fracture Mechanics, 2013, 63-64(2-4): 54–62. DOI: 10.1016/j.tafmec.2013.03.006.
[10]	YAO S J, ZHANG D, CHEN X G, et al. Experimental and numerical study on the dynamic response of RC slabs under blast loading [J]. Engineering Failure Analysis, 2016, 66(8): 120–129. DOI: 10.1016/j.engfailanal.2016.04.027.
[11]	郑全平, 周早生, 钱七虎, 等. 防护结构中的震塌问题 [J]. 岩石力学与工程学报, 2003(8): 1393–1398. DOI: 10.3321/j.issn:1000-6915.2003.08.031. ZHENG Q P, ZHOU Z S, QIAN Q H, et al. Spallation in protective structures [J]. Chinese Journal of Rock Mechanics and Engineering, 2003(8): 1393–1398. DOI: 10.3321/j.issn:1000-6915.2003.08.031.
[12]	张想柏, 杨秀敏, 陈肇元, 等. 接触爆炸钢筋混凝土板的震塌效应 [J]. 清华大学学报(自然科学版), 2006, 46(6): 765–768. DOI: 10.16511/j.cnki.qhdxxb.2006.004. ZHANG X B, YANG X M, CHEN Z Y, et al. Explosion spalling of reinforced concrete slabs with contact detonations [J]. Journal of Tsinghua University (Science and Technology) , 2006, 46(6): 765–768. DOI: 10.16511/j.cnki.qhdxxb.2006.004.
[13]	岳松林, 王明洋, 张宁, 等. 混凝土板在接触爆炸作用下的震塌和贯穿临界厚度计算方法 [J]. 爆炸与冲击, 2016, 36(4): 472–482. DOI: 10.11883/1001-1455(2016)04-0472-11. YUE S L, WANG M Y, ZHANG N, et al. A method for calculating critical spalling and perforating thicknesses of concrete slabs subjected to contact explosion [J]. Explosion and Shock Waves, 2016, 36(4): 472–482. DOI: 10.11883/1001-1455(2016)04-0472-11.
[14]	徐金贵. 混凝土接触爆炸破坏效应研究[D].四川绵阳: 西南科技大学, 2019.
[15]	HONG J, FANG Q, CHEN L, et al. Numerical predictions of concrete slabs under contact explosion by modified K&C material model [J]. Construction and Building Materials, 2017, 155: 1013–1024. DOI: 10.1016/j.conbuildmat.2017.08.060.
[16]	ZHAO C F, LU X, WANG Q, et al. Experimental and numerical investigation of steel-concrete (SC) slabs under contact blast loading [J]. Engineering Structures, 2019, 196(1): 109337. DOI: 10.1016/j.engstruct.2019.109337.
[17]	王晓峰, 郑全平, 吴飚, 等. 接触爆炸条件下钢筋混凝土梁实验及数值模拟研究[C] // 第4届全国工程安全与防护学术会议论文集. 洛阳, 2014: 160-166. WANG X F, ZHENG Q P, WU B, et al. Experimental Study and numerical simulation for reinforced concrete beam under contact explosion [C] // Proceedings of the 4th National Engineering Safety and Protection Conference. Luoyang, 2014: 160−166.
[18]	HANG G Z, YAN BO, YANG Z. Damage model test of prestressed T-beam under explosion load [J]. IEEE Access, 2019, 99(1): 135340. DOI: 10.1109/ACCESS.2019.2940037.
[19]	LI Z, LIU L, YAN J B, et al. Experimental investigation of p-section concrete beams under contact explosion and close-in explosion conditions [J]. Defence Technology, 2018, 14(5): 540–549. DOI: 10.1016/j.dt.2018.07.025.
[20]	ANDREW R, NICOLA B, GIUSEPPE C, et al. Full scale experimental tests and numerical model validation of reinforced concrete slab subjected to direct contact explosion [J]. International Journal of Impact Engineering, 2019, 132(10): 103309.1. DOI: 10.1016/j.ijimpeng.2019.05.023.
[21]	美国陆军工程兵水道试验站. 常规武器防护设计原理[M]. 方秦, 译. 南京: 解放军工程兵工程学院, 1997.
[22]	蒋洋, 王晓谋, 郭建坤, 等. 基于滑移线场理论斜坡条基极限承载力解析解 [J]. 地下空间与工程学报, 2018, 14(1): 92–100. JIANG Y, WANG X M, GUO J K, et al. Analytical solutions of ultimate bearing capacity for strip foundations on slopes based on slip line theories [J]. Chinese Journal of Underground Space and Engineering, 2018, 14(1): 92–100.
[23]	MORISHITA M, TANAKA H, ITO M, et al. Damage of reinforced concrete slabs subjected to contact detonations [J]. Journal of Structural Engineering, 2000, 46: 1787–1797.
[24]	ALOK D, ABASS B. Assessment of reinforced concrete slab response to contact explosion effects [J]. Journal of Performance of Constructed Facilities, 2020, 34(4): 04020061. DOI: 10.1061/(asce)cf.1943-5509.0001469.