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Experimental and Numerical Analysis on Influence of Charge Parameters on Damage Effect of RC Column
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Yun-kai YANG, Shuang-zhang WU, Zhen-ru GAO, Yi-ming MAO, Chen-shan YANG
Blasting | 2023, 40(3) : 143 - 150
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Blasting | 2023, 40(3): 143-150
• EXPLOSIVE DEMOLITION •
Experimental and Numerical Analysis on Influence of Charge Parameters on Damage Effect of RC Column
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Yun-kai YANG, Shuang-zhang WU, Zhen-ru GAO, Yi-ming MAO, Chen-shan YANG
Affiliations
  • College of Field Engineering, Army Engineering University, Nanjing 210007, China
Published: 2023-09-01 doi: 10.3963/j.issn.1001-487X.2023.03.020
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The charge parameters are crucial factors affecting the damage effect of RC components under close-in explosion. The study of the influence law of different charge parameters on component damage is of guiding significance for improving warhead design and optimizing fire strike scheme. A cylindrical charge with a length to diameter ratio of 5.5 and a charge of 10 kg was used to carry out near explosion damage tests of the supporting column of a reinforced concrete single-storey stacked structure plant at a proportional distance of , and a comparison test of spherical charge was set up. The experimental results show that the damage effect of a cylindrical charge is stronger than that of a spherical charge, and the reliability of the numerical simulation model is verified by the experimental data. The length to diameter ratio, blast height, charge amount and action distance of cylindrical charge are taken as the research factors, and three levels are determined for each factor. The simulation results of blast damage of reinforced concrete under 9 different charging parameters were designed and obtained by orthogonal simulation test method, and the influence law of cylindrical charging parameters on the damage effect of reinforced concrete columns was analyzed. The amount of the cylindrical charge has the greatest effect on the damage degree, the ratio of length to diameter has the second effect, and the blast height has the least effect on the damage degree. When 4.5≤L/D≤6.5, the damage effect on the component is greater. When the blast height is 1/4, 1/2 and 3/4 column height respectively, the explosion at the 1/4 column height has the best damage effect on the support column.

charge parameters  /  reinforced concrete column  /  close-in explosion  /  damage effect  /  orthogonal test  /  numerical simulation
Yun-kai YANG, Shuang-zhang WU, Zhen-ru GAO, Yi-ming MAO, Chen-shan YANG. Experimental and Numerical Analysis on Influence of Charge Parameters on Damage Effect of RC Column[J]. Blasting, 2023 , 40 (3) : 143 -150 . DOI: 10.3963/j.issn.1001-487X.2023.03.020
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  • National Natural Science Foundation of China(51678567)
Appendix
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Year 2023 volume 40 Issue 3
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100
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Article Info
doi: 10.3963/j.issn.1001-487X.2023.03.020
  • Receive Date：2022-04-19
  • Online Date：2026-03-20
  • Published：2023-09-01
Article Data
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History
  • Received：2022-04-19
Funding
National Natural Science Foundation of China(51678567)
Affiliations
    College of Field Engineering, Army Engineering University, Nanjing 210007, China

Corresponding:

GAO Zhen-ru (1971-), male, Ph. D, associate professor, mainly engage in the research of explosion damage mechanism and application, (E-mail) .
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表12种不同金属材料的力学参数
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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