导　　师： 王旭

学科专业： 081903

授予学位： 硕士

作　　者： ;

机构地区： 沈阳航空航天大学

摘　　要： 地铁已成为解决城市发展带来的交通问题的一种重要手段。作为这些城市脉络上的节点，地铁站的设计聚焦了越来越多的目光,同时消防安全问题更是受到了更多的关注。 本课题结合工程实例，提出中庭式地铁车站的烟控方案，应用性能化防火设计的方法，通过对比分析某中庭式地铁车站的通风、排烟设计，相应地建立了9个典型的火灾场景来模拟火灾蔓延、烟气流动、烟气浓度场及温度场，验证烟控方案的有效性。通过数值模拟发现，对中庭区域采取独立的排烟风机、防火分区、等消防策略方案，可将火灾烟气控制在较小范围；合理的划分防火及防烟分区，能够有效地进行烟气控制。 运用STEPS疏散软件结合火灾场景，建立了相应的疏散场景。计算出每一个场景的疏散时间，通过与烟气模拟得出的危险来临时间比较，来验证烟控方案的有效性。通过模拟得出中庭式地铁车站中疏散楼梯对于人员疏散起着决定性作用，而站厅通往地面的出入口对疏散影响不是很大。因此，必须保证站台至站厅疏散楼梯的有效性。 Subway has become a kind of important means with the development of citytraffic problems. As the cities on the context node, the subway station design attractsmore and more attention, and the problem of fire and safety has been paid muchmore attention. According to the engineering case, I put forward plans to control smoke andthen with the method of performance-based fire protection design. Throughanalyzing and comparing the characteristics of ventilation and smoke controlsystems, and9typical fire scenarios were built to simulate fire spread, analysissmoke flowing, temperature field, smoke concentration field, to test and verify theeffectiveness of plan. Through simulating it found that using separately smokeexhaust system，fire compartment is useful to control, it can control fire smoke in alittle area. Effectively control smoke by using reasonable fire compartment andsmoke bay. Considering fire scenes, Establish the evacuation scene with the software ofSTEPS. Simulating the time of every scenes of evacuation, comparing ASET withRSET to test and verify the effectiveness of plan. It can get the conclusion thatevacuation staircase is the key for evacuation from platform to station hall bysimulation, so it must keep the staircase effective.

关 键 词： 中庭式地铁车站 烟气控制方式 疏散设计 火灾危险

分 类 号： [U231.4]

领　　域： [交通运输工程]