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The Introduction of Light Steel Framing

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The Introduction of Light Steel Framing
Latest company news about The Introduction of Light Steel Framing

The load-bearing light steel frame can be used in multi-storey residential buildings with no more than 10 stories.

 

Construction form

In a multi-storey residential building, the walls are made of load-bearing lightweight steel panels, which are usually spaced at 600 mm centers. The floor is supported by the wall.

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Load-bearing and supporting cross walls provide lateral stability, and these cross walls are usually also designed as partition walls for sound insulation and fire protection. The support can be a flat belt X support or an integral K support.

 

Application field

Multi-storey apartment, key worker residence, etc.

 

Technical details

The C-shaped cross-sections in wall panels are usually 100 mm deep and 1.5 to 2.0 mm thick, depending on their load (that is, it varies with the floor). At the lower level, C sections are usually placed in pairs; a single C-shaped section with reduced thickness is used in the upper part.

 

Two types of floor structures are commonly used:

  • Light steel floor joist
  • Laminate flooring.

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In the first case, the depth of the floor joist is 200 to 250 mm and the span between the span walls is 4 to 6 m (for thicker sections, longer spans can be achieved). The dead weight of the suspended floor is usually 0.8 kN/m2, including the accumulation layer for sound insulation.

 

In the second case, the composite board has a depth of 150 to 200 mm, which can span similar distances, but its own weight is higher, ranging from 3.0 to 4.5 kN/m2. Longer spans may require support.

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The main technical issues affecting the design of light steel frame mid- and high-rise residential buildings are:

  • Stability under wind load
  • Sound insulation material
  • Fire performance.

 

Generally, two layers of 15 mm thick fire-resistant gypsum boards have mineral wool between the C section, which is enough to provide 90 minutes of fire resistance and high level of sound insulation for the light steel partition wall.

Pub Time : 2022-05-05 15:15:08 >> News list
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