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为防止建筑火灾蔓延引起街区大火,除建筑物之间保持一定防火间距外,建筑物本身还需具有一定的耐火等级和防火性能。对一幢建筑物而言,最主要的是保证屋面及外墙具有一定的耐火极限和防火构造措施。防止火灾在建筑物内部蔓延的构造措施包括:1.水平防火隔断;2.竖向防火隔断;3.重点部位防火隔断;4.孔洞防火;5.墙内保温层防火;6.室内装修防火;7.门要符合防火和疏散要求。
In order to prevent building fires from causing fire in a block, apart from maintaining a certain fire-proof distance between buildings, the building itself must also have a certain level of fire resistance and fire performance. For a building, the most important thing is to ensure that the roof and the exterior walls have certain fire-resistance limits and fireproof construction measures. Construction measures to prevent the spread of fire inside the building include: 1. Horizontal fire partitions; 2. Vertical fire partitions; 3. Fire protection partitions of key parts; 4. Fire prevention of holes; 5. Fire protection of the inner wall insulation layer; 7. The door must meet fire prevention and evacuation requirements.