Author(s)

C. S. Ahn, H. Y. Kim, Y. H. Yoo & Y. J. Lee

Abstract

This study is intended to evaluate the characteristics of smoke spreading and the appropriateness of evacuation time extended by the operation of a smoke control system during a fire within the underground space of the building. The building is structured in compliance with the smoke control system performance criteria from the local fire safety standard, which has been recently applied to all buildings in Korea. As a preceding review, the heat release of the combustibles was identified and based on the outcome thereof; the type and specification of the combustibles existing at the possible fire location were examined, estimating the heat releases. In a bid to validate the estimated values, modeling of a single underground shopping mall was carried out, and the combustibles examined during the preceding review were placed inside the building for a real scale fire test, the results of which were then reviewed and compared with a numerical analysis result. Using the heat release per unit weight of the combustibles, a numerical analysis both in case of the smoke control system in operation and the system not in operation was carried out at several different shopping malls. From the viewpoint of securing the evacuation time, the results were compared in an attempt to assess the appropriateness of the fire safety criteria. Keywords: underground market, smoke control, evacuation.

Keywords

underground market, smoke control, evacuation