Emergency alarm systems notify people in case of a fire hazard so that they can quickly escape to safe areas. As buildings become larger and taller, emergency alarm systems have been transitioning from alarm-at-once systems to priority alarm systems. The Korean National Fire Safety Code for the emergency alarm system (NFSC 202) states that if there is a fire on or above the second floor of a building, it is mandatory to sound an alarm on the fire floor and the floor directly above it. A previous study reported that as the fire alarm sound transferred to the upper and lower floor through escape stairways, the transferred alarm sound could also be recognized by residents on unintended floors. Consequently, there is a possibility that all of the residents in a building may try to attempt to escape simultaneously. Application of sound absorption material in the alarm sound propagation routes was proposed to reduce alarm sound transmission to unintended floors. However, a study on the prediction of alarm sound propagation through escape stairways connected to the elevator hall was not conducted. This study predicted the propagation of alarm sounds generated in the elevator halls of Korean apartment buildings to floors above and below the alarming floor using a standardized room acoustic simulation method. To control alarm sound transmission to the unintended floors, the application of sound absorption materials on the walls of the escape stairways and the sound insulation performance of fireproof doors was considered. To facilitate effective escapes from high-rise buildings, control of a situation in which the alarm sounds of a priority alarm system are transferred to unintended floors is necessary. Prediction results showed that to prevent alarm sound transmission though the escape stairways, installation of fireproof doors with high sound insulation performance at the entrance of escape stairways and application of incombustible sound absorption materials or sound-absorbing blocks on the walls of escape stairways are needed.

紧急警报系统会在发生火灾危险时通知人们，以便他们可以迅速逃往安全区域。随着建筑物变得越来越大，紧急报警系统已经从一次性报警系统转变为优先报警系统。韩国国家紧急报警系统消防安全规范 (NFSC 202) 规定，如果建筑物的二楼或二楼以上发生火灾，必须在火灾楼层及其正上方的楼层发出警报。先前的一项研究报告称，当火警警报声通过逃生楼梯传送到上层和下层时，传送的警报声也可能被非预期楼层的居民识别。因此，建筑物内的所有居民有可能同时尝试逃跑。建议在报警声传播路径中应用吸声材料，以减少报警声传播到非预期楼层。但是，没有对通过与电梯厅相连的逃生楼梯进行警报声传播的预测进行研究。这项研究使用标准化的房间声学模拟方法预测了韩国公寓楼电梯厅中产生的警报声会传播到警报楼层的上下楼层。为了控制报警声传到非预期楼层，考虑在逃生楼梯的墙壁上应用吸声材料和防火门的隔音性能。为了便于高层建筑的有效逃生，有必要控制优先警报系统的警报声转移到非预期楼层的情况。预测结果表明，为防止通过逃生楼梯发出警报声，需要在逃生楼梯入口处安装隔音性能高的防火门，并在逃生楼梯的墙壁上应用不燃吸声材料或吸音块。