Blast-resistant performance of aluminum foam-protected reinforced concrete slabs

GAO Haiying; LIU Zhongxian; YANG Yekai; WU Chengqing; GENG Jiaying

doi:10.11883/bzycj-2018-0284

Volume 39 Issue 2

Feb. 2019

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GAO Haiying, LIU Zhongxian, YANG Yekai, WU Chengqing, GENG Jiaying. Blast-resistant performance of aluminum foam-protected reinforced concrete slabs[J]. Explosion And Shock Waves, 2019, 39(2): 023101. doi: 10.11883/bzycj-2018-0284

Citation:

GAO Haiying, LIU Zhongxian, YANG Yekai, WU Chengqing, GENG Jiaying. Blast-resistant performance of aluminum foam-protected reinforced concrete slabs[J]. Explosion And Shock Waves, 2019, 39(2): 023101. doi: 10.11883/bzycj-2018-0284

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Blast-resistant performance of aluminum foam-protected reinforced concrete slabs

doi: 10.11883/bzycj-2018-0284

1.
Tianjin Key Laboratory of Civil Structure Protection and Reinforcement, Tianjin Chengjian University, Tianjin 300384, China
2.
School of Civil Engineering, Tianjin University, Tianjin 300072, China
3.
University of Technology Sydney, Sydney 2007, Australia

Received Date: 2018-08-08
Rev Recd Date: 2018-11-19
Publish Date: 2019-02-05

Abstract

Abstract

n order to study the blast-resistant protective effect of the aluminum foam slab as porous energy absorbing material on the engineering structure, using an outdoor explosion test, the dynamic response and failure modes of reinforced concrete (RC) slabs with different aluminum foam protective layers under blast loading were studied, and the finite element model was established by using the LS-DYNA software. Through comparison with the test, the feasibility of the model was verified. The dynamic responses of RC slabs with or without aluminum foam protective layers were compared and analyzed, and the effects of aluminum foam density gradient distribution and longitudinal reinforcement ratio were analyzed. The results show that the finite element model can accurately describe the dynamic response of RC slabs with aluminum foam protective layers. Aluminum foam protective layers can effectively reduce the deflection of reinforced concrete slabs and reduce the damage of specimens. The aluminum foam density increases from bottom to top, which has the best blast-resistant performance on RC slabs. Moreover, increasing the reinforcement ratio can improve the blast-resistant performance of aluminum foam-protected RC slabs.
- aluminum foam,
- reinforced concrete slab,
- blast loading,
- blast-resistant performance,
- density gradient

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References

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