郭晓钧, 蓝草, 钟菊芳. 商用飞机撞击全钢衬混凝土板的有限元分析[J]. 南昌航空大学学报(自然科学版), 2019, 33(1): 96-101. DOI: 10.3969/j.issn.1001-4926.2019.01.016
引用本文: 郭晓钧, 蓝草, 钟菊芳. 商用飞机撞击全钢衬混凝土板的有限元分析[J]. 南昌航空大学学报(自然科学版), 2019, 33(1): 96-101. DOI: 10.3969/j.issn.1001-4926.2019.01.016
Xiao-jun GUO, Cao LAN, Ju-fang ZHONG. Numerical Analysis of Full Steel Plate Reinforced Concrete Slab Subjected to Aircraft Impact[J]. Journal of nanchang hangkong university(Natural science edition), 2019, 33(1): 96-101. DOI: 10.3969/j.issn.1001-4926.2019.01.016
Citation: Xiao-jun GUO, Cao LAN, Ju-fang ZHONG. Numerical Analysis of Full Steel Plate Reinforced Concrete Slab Subjected to Aircraft Impact[J]. Journal of nanchang hangkong university(Natural science edition), 2019, 33(1): 96-101. DOI: 10.3969/j.issn.1001-4926.2019.01.016

商用飞机撞击全钢衬混凝土板的有限元分析

Numerical Analysis of Full Steel Plate Reinforced Concrete Slab Subjected to Aircraft Impact

  • 摘要: 钢板具有强度高、延性好以及耗能性佳等特点,它与混凝土板组成的钢衬混凝土板结构是一种非常好的抗冲击防护结构,被广泛使用在防护工程中,例如核电站的防护壳,能够有效的抵御商用飞机的撞击。当钢衬混凝土板结构遭受商用飞机的撞击时,钢衬板能够有效的限制结构的横向整体变形,而且后置钢衬板还能有效阻止混凝土板的破碎以及碎片的飞溅。为研究钢衬混凝土板结构的抗冲击能力,文中根据钢衬板布置方式的不同建立了3个全钢衬混凝土板的数值模型,并且通过软件模拟了这些模型在波音707-320型商用飞机的撞击下的性能,所采用的方法是荷载时程分析法。研究结果表明:相比混凝土板的正面,板的背面更需要注意加强防护,因此适当的增加后置钢衬板的厚度可以有效地提高钢衬混凝土板结构的防护性能。

     

    Abstract: The steel plate has the characteristics of high strength, good ductility and good energy dissipation. The steel lined concrete slab structure is a good anti-shock protection structure when the steel plates add to the concrete slab. So it is widely used in protective engineering such as the protective shell of nuclear power station, this structure can resist the impact of commercial aircraft. When the steel-lined concrete slabs are impacted by commercial aircraft, the steel-lined slabs can limit the transverse integral deformation of the structure effectively. And the post-steel-lined slabs can also prevent the concrete slabs from breaking and splashing. For studying the impact resistances of steel-lined concrete slab structure, in this paper, three numerical models of steel-lined concrete slabs are established according to the different arrangement of steel linings, and the performance of these models under the impact of Boying 707-320 commercial aircraft is simulated by software. the research technique is load time history analysis. The results show that compared with the front side of concrete slabs, more attention should be paid to strengthening the protection on the back side of the slabs. Therefore, proper increase of the thickness of the steel lining slabs can effectively improve the protective performance of the steel-lined concrete slab structures.

     

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