Abstract

In this paper, taking the thermal insulation of the exterior wall after the renovation of multi-storey old residential quarters as the object Pyrosis is used to simulate the fire, and the prevention and control effects of different fire isolation belts and the combination of fire isolation belts and fire isolation layers on the longitudinal spread of the exterior wall fire are simulated. The results show that the arrangement of one fire isolation layer and each fire isolation layer in five groups of working conditions can effectively delay the longitudinal spread of external wall fire caused by window fire. The research results can provide reference for outdoor fire prevention and control measures of multi-storey buildings, and gain valuable rescue time for firefighting.

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