Development of Smoke Control System Ensuring Safe Evacuation Through Stairwell for High-Rise Building in Korea

Abstract

In general, the pressure differential smoke control system has been used as a smoke control system on the emergency stairs of high-rise buildings, but it can fail to achieve the purpose of pressure differential system due to high possibility of overpressure between the lobby and the accommodation or pressure drop in the lobby in case the leakage and supplementary air flow is supplied at the same time through one air supply path. In connection with improvement of this problem, we suggested device configuration and methods to conduct supply of leakage and supplementary air flow through different flow passages, thereby providing safe evacuation environment in case of a fire in high-rise buildings.