Smoke Barrier for Container Houses

When installing smoke barriers in container houses, it is necessary to select products based on the clear height of the space, smoke exhaust method, and layout stability, ensuring compliance with the specifications for smoke reservoir thickness. Detailed analysis is as follows:

1. Smoke reservoir thickness is the core basis for selection
According to Article 4.6.2 of GB 51251-2017 'Technical Standard for Smoke Prevention and Exhaust Systems in Buildings', the thickness of the smoke reservoir for smoke barriers must match the smoke exhaust method:

• For natural smoke exhaust, the smoke reservoir thickness should not be less than 20% of the clear height of the space, with a minimum of 500mm;
• For mechanical smoke exhaust, the smoke reservoir thickness should not be less than 10% of the clear height of the space, also with a minimum of 500mm.
  Container houses typically have a relatively low clear height (e.g., 2.5-3 meters), so the smoke reservoir thickness must be calculated based on the actual height. For example, if the clear height is 2.5 meters, for natural smoke exhaust, the smoke reservoir thickness should be ≥500mm (2.5m × 20% = 0.5m), and for mechanical smoke exhaust, it should be ≥250mm, but it must still meet the minimum requirement of 500mm, so it should be implemented as 500mm.

2. Product type should be suitable for the characteristics of container houses

• Fixed smoke barriers: Suitable for container houses with stable spatial layouts and no need for frequent adjustments, such as office or storage scenarios. They have a simple structure and low cost but lack flexibility.
• Movable smoke barriers: Suitable for scenarios where the space function needs to be temporarily changed (e.g., exhibitions, temporary medical stations). They can be raised or lowered by electric or manual control to meet dynamic smoke prevention needs.
  The lightweight structure of container houses requires consideration of the installation stability of smoke barriers to prevent detachment due to vibration or wind pressure. It is recommended to prioritize lightweight, high-strength materials (such as aluminum alloy or fire-resistant glass).

3. Installation must meet fire prevention and structural safety requirements
Smoke barriers must be made of non-combustible materials (such as Class A fire-resistant boards) with a fire resistance limit of not less than 0.5 hours. During installation, they must be tightly connected to the walls and roofs of container houses to prevent smoke leakage. If the house has a modular拼接 (spliced) structure, enhanced sealing treatment should be carried out at the joints to ensure the integrity of the smoke prevention zone.

Summary: The selection of smoke barriers for container houses should be based on the specifications for smoke reservoir thickness, combined with the smoke exhaust method, spatial height, and usage scenario to choose between fixed or movable products, and strictly adhere to material fire prevention and installation stability requirements.