地铁换乘站高峰期火灾及人员疏散模拟研究

为研究地铁换乘站高峰期发生火灾时人员疏散情况,以JMS地铁换乘站为对象,利用Revit软件建立其建筑信息模型.通过PyroSim软件对6种火灾工况进行模拟,以人体耐受温度、CO浓度和烟气能见度作为安全指标,研究各通行设施失效临界值;增加年龄、性别和速度等行人参数信息,用Pathfinder软件探讨高峰期行人在各工况下疏...

Research on fire and evacuation simulation of subway transfer station during peak period

In order to study the evacuation of people in a subway transfer station fire during peak period, taking JMS subway transfer station as the object, the building information model was established by Revit. Six kinds of fire scenarios were simulated by Pyrosim, and the failure critical values of all passing facilitieswere studied by taking the temperature, CO concentration and smoke visibility as safety indexes. The pedestrian parameters such as age, gender, weight and speed were added. The evacuation time, evacuation flow and evacuation bottleneck were discussed by Pathfinder. The results show that the evacuation fails under scenarios A2 and C2; Pedestrians are more inclined to pass facilities around during the escape process, leading to neglect of the best route; some facilities are idle when the evacuation bottleneck occurs in other passing facilities, which leads to the phenomenon of low utilization rate of facilities and low evacuation efficiency. Finally, optimization suggestions are put forward for the situation.