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采用火灾动力学软件FDS,模拟分析不同火灾场景下中庭防排烟的有效性。结果表明,在基于两个功能区顶棚机械排烟的条件下,将入口大厅与礼仪大厅处挡烟垂壁的下垂高度由1.5 m增加至5 m,可保证中庭区域人员的安全疏散,确保可用疏散时间不小于所需安全疏散时间。
The fire dynamics software FDS was used to simulate and analyze the effectiveness of smoke exhaust atrium in different fire scenarios. The results show that the dwelling height of smoke curtain wall at the entrance hall and ceremonial hall increased from 1.5 m to 5 m under the mechanical ventilation of ceiling with two functional areas to ensure the evacuation of personnel in the atrium area and ensure the availability Evacuation time is not less than the required safe evacuation time.