Evaluation of Impulsive Loadings due to Explosions in Underground Structures
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Published:1992
S. Corti, G. Colombo, P. Molinaro, G. Mazzà, 1992. "Evaluation of Impulsive Loadings due to Explosions in Underground Structures", Structures Under Shock and Impact II: Proceedings of the Second International Conference, held in Portsmouth, U.K., 16th–18th June, 1992, P.S. Bulson
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In underground power stations, the faults of electrical equipment can give rise to gas mixtures generation due to physical-chemical reactions of the oil used in the machinery as isolator. Of course, if the gas cloud has the possibility of mixing with air, a strong deflagration, or even a detonation, can take place.
In the present paper different simplified approaches to evaluate impulses acting on structures are presented. The results are compared with those obtained by means of complex differential equations solved by means of a finite difference 3-D method. From the comparison of the results, expressed in terms of effects on structural elements, it can be suggested the use of simplified methods because of the substantial equivalence of the results with those obtained using numerical solutions, at least for preliminary designs or for simple geometries.
INTRODUCTION
DESCRIPTION OF THE PHENOMENA AND SIMPLIFIED OVERPRESSURES EVALUATION
CASES ANALYSED
COMPARATIVE ANALYSIS OF RESULTS
REFERENCES
