Simplified calculation methods of gaseous explosion effects in buildings

GAO Kanghua; ZHAO Tianhui; SUN Song; GUO Qiang

doi:10.11883/bzycj-2016-0201

Volume 38 Issue 2

Jan. 2018

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GAO Kanghua, ZHAO Tianhui, SUN Song, GUO Qiang. Simplified calculation methods of gaseous explosion effects in buildings[J]. Explosion And Shock Waves, 2018, 38(2): 443-454. doi: 10.11883/bzycj-2016-0201

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GAO Kanghua, ZHAO Tianhui, SUN Song, GUO Qiang. Simplified calculation methods of gaseous explosion effects in buildings[J]. Explosion And Shock Waves, 2018, 38(2): 443-454. doi: 10.11883/bzycj-2016-0201

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Simplified calculation methods of gaseous explosion effects in buildings

doi: 10.11883/bzycj-2016-0201

1.
National Key Laboratory for Explosion & Impact and Disaster Prevention & Mitigation, Army Engineering University, Nanjing 210007, Jiangsu, China
2.
92656 Troops, PLA, Sanya 572000, Hainan, China

Received Date: 2016-07-06
Rev Recd Date: 2016-11-08
Publish Date: 2018-03-25

Abstract

Abstract

In this paper the simplified calculation methods of internal pressure, structure load and dynamic response in gas deflagration in buildings were reviewed based on the current research achievements of gas explosion in confined space, including mainly the characteristics of deflagration pressure and structural load, the computation models of deflagration pressure and structural response. The empirical correlations of venting deflagration pressure based on experiment data and simplified calculation methods of venting deflagration pressure reflecting the fundamental physical process were examined in detail. The applicability of various models and the influences of deflagration load characteristics on the structural response were analyzed. The simplified calculation models for engineering that considering the influence of building functions were discussed with some advices given. In terms of the deflagration pressure calculation model, the ignition position, geometric characteristics of the blast chamber, turbulence effect of flame propagation and open process of venting structures should be considered. It was concluded that in terms of the calculation method of the structural dynamic response, some influencing factors such as deflagration load time-history, static-dynamic coupling loading and structure supporting load change should be taken into account.
- safety engineering,
- building,
- venting deflagration,
- calculation methods

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References(68)

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