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In this paper, the nature of gas explosion, from
a structural point of view, has been studied. Based
on experimental and theoretical studies, which have been reported by well-known references,
different _haracteristics
of gas
explosion in
residential buildings and factors influencing it have been discussed. By comparing different methods, a model to predict overpressure of gas explosion has been chosen. Considering geometric
characteristics of Iranian dwellings, on the basis of field investigation, a value for overpressure of gas explosion as much as 25K.N/m2, for masonry and
panelized structures, is recommended.